Toyota Prius Prime (2021 year). Manual in english — part 5

278

PRIUS PRIME_OM_OM47D71U_(U)

4-1. Key information

■

Electronic key battery depletion

●

The standard battery life is 1 to 2 years.

●

If the battery becomes low, an alarm will sound in the cabin and a message
will be displayed on the multi-information display when the hybrid system
stops.

●

As the electronic key always receives radio waves, the battery will become
depleted even if the electronic key is not used. The following symptoms indi-
cate that the electronic key battery may be depleted. Replace the battery
when necessary. (



P. 647)

• The smart key system or the wireless remote control does not operate.
• The detection area becomes smaller.
• The LED indicator on the key surface does not turn on.
You can replace the battery by yourself (



P. 647). However, as there is a

danger that the electronic key may be damaged, it is recommended that
replacement is carried out by your Toyota dealer.

●

To avoid serious deterioration, do not leave the electronic key within 3 ft.
(1 m) of the following electrical appliances that produce a magnetic field:
• TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Table lamps
• Induction cookers

PRIUS PRIME_OM_OM47D71U_(U)

279

4-1. Key information

4

Op
eration

o

f each

compo

nen
t

■

If a message regarding the state of the electronic key or power switch
mode, etc. is shown

To prevent trapping the electronic key inside the vehicle, leaving the vehicle
without turning off the power switch or other passengers from unintentionally
taking the key out of the vehicle, etc., a message that prompts the user to
confirm the state of the electronic key or power switch mode may be shown
on the multi-information display. In those cases, follow the instructions on the
display immediately.

■

If “Key Battery Low Replace Key Battery” is displayed on the multi-infor-
mation display

The electronic key has a low battery. Replace the electronic key battery.
(



P. 647)

■

Replacing the battery



P. 647

■

Confirmation of the registered key number

The number of keys already registered to the vehicle can be confirmed. Ask
your Toyota dealer.

■

If “A New Key has been Registered Contact Your Dealer for Details” is
displayed on the multi-information display

This message will be displayed each time the driver’s door is opened when
the doors are unlocked from the outside for approximately 10 days after a
new electronic key has been registered.
If this message is displayed but you have not had a new electronic key regis-
tered, ask your Toyota dealer to check if an unknown electronic key (other
than those in your possession) has been registered.

■

If a wrong key is used

The key cylinder rotates freely to isolate inside mechanism.

280

PRIUS PRIME_OM_OM47D71U_(U)

4-1. Key information

NOTICE

■

To prevent key damage

●

Do not drop the keys, subject them to strong shocks or bend them.

●

Do not expose the keys to high temperatures for long periods of time.

●

Do not get the keys wet or wash them in an ultrasonic washer etc.

●

Do not attach metallic or magnetic materials to the keys or place the keys
close to such materials.

●

Do not disassemble the keys.

●

Do not attach a sticker or anything else to the surface of the electronic key.

●

Do not place the keys near objects that produce magnetic fields, such as
TVs, audio systems and induction cookers.

●

Do not place the keys near medical electrical equipment such as low-fre-
quency therapy equipment or microwave therapy equipment, and do not
receive medical attention with the keys on your person.

■

Carrying the electronic key on your person

Carry the electronic key 3.9 in. (10 cm) or more away from electric appli-
ances that are turned on. Radio waves emitted from electric appliances
within 3.9 in. (10 cm) of the electronic key may interfere with the key, caus-
ing the key to not function properly.

■

In case of a smart key system malfunction or other key-related prob-
lems

Take your vehicle with all the electronic keys provided with your vehicle to
your Toyota dealer.

■

When an electronic key is lost

If the electronic key remains lost, the risk of vehicle theft increases signifi-
cantly. Visit your Toyota dealer immediately with all remaining electronic
keys that were provided with your vehicle.

281

PRIUS PRIME_OM_OM47D71U_(U)

4-2. Opening, closing and locking the doors

4

Op
eration

o

f each

compo

nen
t

Side doors

◆

Smart key system

Carry the electronic key to enable this function.

Grip the driver’s door handle
to unlock the door. Holding
the driver’s door handle for
approximately 2 seconds
unlocks all the doors.
Some models, grip the front
passenger’s door handle to
unlock all the doors

*

.

Make sure to touch the sensor on the back of the handle.
The doors cannot be unlocked for 3 seconds after the doors are locked.

*

: The door unlock settings can be changed. (



P. 285)

Touch the lock sensor (the indentation on the surface of the front
door handle) to lock the doors.

Check that the door is securely locked.

The vehicle can be locked and unlocked using the entry func-
tion, wireless remote control or door lock switches.

Unlocking and locking the doors from the outside

1

2

282

PRIUS PRIME_OM_OM47D71U_(U)

4-2. Opening, closing and locking the doors

◆

Wireless remote control

Locks all the doors

Check that the door is securely
locked.

Unlocks all the doors

Pressing the button unlocks the
driver’s door. Pressing the but-
ton again within 3 seconds
unlocks the other doors.
Press and hold to open the side
windows.

*

*

: This setting must be customized at your Toyota dealer.

■

Operation signals

Doors:
A buzzer sounds and the emergency flashers flash to indicate that the doors
have been locked/unlocked. (Locked: Once; Unlocked: Twice)
Side windows:
A buzzer sounds to indicate that the side windows are operating.

■

Security feature

If a door is not opened within approximately 60 seconds after the vehicle is
unlocked, the security feature automatically locks the vehicle again.

■

When the door cannot be locked by the lock sensor on the surface of the
door handle

■

Door lock buzzer

If an attempt to lock the doors is made when a door is not fully closed, a
buzzer sounds continuously for 5 seconds. Fully close the door to stop the
buzzer, and lock the vehicle once more.

■

If the smart key system or the wireless remote control does not operate
properly

●

Use the mechanical key to lock and unlock the doors. (



P. 711)

●

Replace the key battery with a new one if it is depleted. (



P. 647)

1

2

When the door cannot be locked even if
the lock sensor on the surface of the door
handle is touched by a finger, touch the
lock sensor with the palm.
When gloves are being worn, remove the
gloves.

PRIUS PRIME_OM_OM47D71U_(U)

283

4-2. Opening, closing and locking the doors

4

Op
eration

o

f each

compo

nen
t

◆

Door lock switches

Locks all the doors
Unlocks all the doors

◆

Inside lock buttons

Locks the door
Unlocks the door

The front doors can be opened
by pulling the inside handle
even if the lock buttons are in
the lock position.

Move the inside lock button to the lock position.
Close the door.

The door cannot be locked if the power switch is in ACCESSORY or
ON mode, or the electronic key is left inside the vehicle.

The key may not be detected correctly and the door may be locked.

Locking and unlocking the doors from the inside

1
2

1
2

Locking the front doors from the outside without a key

1

2

284

PRIUS PRIME_OM_OM47D71U_(U)

4-2. Opening, closing and locking the doors

The door cannot be opened from
inside the vehicle when the lock is
set.

Unlock
Lock

These locks can be set to prevent
children from opening the rear
doors. Push down on each rear
door switch to lock both rear doors.

The following functions can be set or canceled:

For instructions on customizing, refer to P. 753.

Rear door child-protector lock

1
2

Automatic door locking and unlocking systems

Function

Operation

Shift position linked door
locking function

Shifting the shift position to any positions other
than P locks all the doors.

Shift position linked door
unlocking function

Shifting the shift position to P unlocks all the
doors.

Speed linked door lock-
ing function

All the doors are locked when the vehicle speed
is approximately 12 mph (20 km/h) or higher.

Driver’s door linked door
unlocking function

All the doors are unlocked when the driver’s
door is opened within approximately 45 seconds
after turning the power switch off.

PRIUS PRIME_OM_OM47D71U_(U)

285

4-2. Opening, closing and locking the doors

4

Op
eration

o

f each

compo

nen
t

■

Switching the door unlock function

It is possible to set which doors the entry function unlocks.

Turn the power switch off.

When the indicator on the key surface is turned off, push and hold

, “A/C”

or

for approximately 5 seconds while pushing the

button on the

key.

The setting changes each time an operation is performed, as shown below.
(When changing the setting continuously, release the buttons, wait for at least
5 seconds, and repeat step .)

■

Using the mechanical key

The doors can also be locked and unlocked with the mechanical key.
(



P. 711)

■

Open door warning buzzer

If the vehicle speed reaches 3 mph (5 km/h), the master warning light flashes
and a buzzer sounds to indicate that the door(s) is not fully closed.
The open door(s) is displayed on the multi-information display.

■

Conditions affecting the operation of the smart key system or wireless
remote control



P. 295

■

Customization

Settings (e.g. unlocking function using a key) can be changed.
(Customizable features:



P. 753)

Multi-information

display

Unlocking doors

Beep

Hold the driver’s door handle
to unlock only the driver’s
door.

Exterior: Beeps three
times
Interior: Pings once

Hold the passenger’s door
handle or back door opener
to unlock all the doors.

Hold the front door handle or
back door opener to unlock
all the doors.

Exterior: Beeps twice
Interior: Pings once

1

2

2

286

PRIUS PRIME_OM_OM47D71U_(U)

4-2. Opening, closing and locking the doors

WARNING

■

To prevent an accident

Observe the following precautions while driving the vehicle.
Failure to do so may result in a door opening and an occupant could be
thrown out of the vehicle, resulting in death or serious injury.

●

Ensure that all doors are properly closed and locked.

●

Do not pull the inside handle of the doors while driving.
Be especially careful for the front doors, as the doors may be opened even
if the inside lock buttons are in locked position.

●

Set the rear door child-protector locks when children are seated in the rear
seats.

■

When opening or closing a door

Check the surroundings of the vehicle such as whether the vehicle is on an
incline, whether there is enough space for a door to open and whether a
strong wind is blowing. When opening or closing the door, hold the door
handle tightly to prepare for any unpredictable movement.

■

When using the wireless remote control and operating the power win-
dows

Operate the power window after checking to make sure that there is no pos-
sibility of any passenger having any of their body parts caught in the side
window. Also, do not allow children to operate the wireless remote control. It
is possible for children and other passengers to get caught in the power
window.

287

PRIUS PRIME_OM_OM47D71U_(U)

4-2. Opening, closing and locking the doors

4

Op
eration

o

f each

compo

nen
t

Back door

◆

Smart key system (if equipped)

Carry the electronic key to enable this function.

Locks all the doors

Check that the door is securely
locked.

Unlocks all the doors

The doors cannot be unlocked
for 3 seconds after the doors are
locked.

◆

Wireless remote control



P. 282

◆

Door lock switches



P. 283

Raise the back door while pushing
up the back door opener switch.

The back door can be unlocked/locked and opened/closed by
the following procedures.

1

2

Opening the back door from outside the vehicle

288

PRIUS PRIME_OM_OM47D71U_(U)

4-2. Opening, closing and locking the doors

Lower the back door using the
back door handle, and make sure
to push the back door down from
the outside to close it.

Be careful not to pull the back door
sideways when closing the back
door with the handle.

■

Luggage compartment light

The luggage compartment light turns on when the back door is opened with
the luggage compartment light switch on.

■

If the back door opener is inoperative

The back door can be unlocked from the inside.

When closing the back door

On
Off
When the power switch is turned off, the
light will go off automatically after 20
minutes.

Remove the cover.
To prevent damage, cover the tip of the
screwdriver with a rag.

Move the lever.

1

2

1

2

PRIUS PRIME_OM_OM47D71U_(U)

289

4-2. Opening, closing and locking the doors

4

Op
eration

o

f each

compo

nen
t

WARNING

Observe the following precautions.
Failure to do so may result in death or serious injury.

■

Before driving

●

Make sure that the back door is fully closed. If the back door is not fully
closed, it may open unexpectedly while driving and hit near-by objects or
luggage in the luggage compartment may be thrown out, causing an acci-
dent.

●

Do not allow children to play in the luggage compartment.
If a child is accidentally locked in the luggage compartment, they could
have heat exhaustion or other injuries.

●

Do not allow a child to open or close the back door.
Doing so may cause the back door to open unexpectedly, or cause the
child’s hands, head, or neck to be caught by the closing back door.

■

Important points while driving

●

Keep the back door closed while driving.
If the back door is left open, it may hit near-by objects or luggage in the
luggage compartment may be thrown out, causing an accident.

●

Never let anyone sit in the luggage compartment. In the event of sudden
braking, sudden swerving or a collision, they are susceptible to death or
serious injury.

290

PRIUS PRIME_OM_OM47D71U_(U)

4-2. Opening, closing and locking the doors

WARNING

■

Operating the back door

Observe the following precautions.
Failure to do so may cause parts of the body to be caught, resulting in death
or serious injury.

●

Remove any heavy loads, such as snow and ice, from the back door
before opening it. Failure to do so may cause the back door to suddenly
shut again after it is opened.

●

When opening or closing the back door, thoroughly check to make sure
the surrounding area is safe.

●

If anyone is in the vicinity, make sure they are safe and let them know that
the back door is about to open or close.

●

Use caution when opening or closing the back door in windy weather as it
may move abruptly in strong wind.

●

Do not pull on the back door damper stay to close the back door, and do
not hang on the back door damper stay.
Doing so may cause hands to be caught or the back door damper stay to
break, causing an accident.

●

If a bicycle carrier or similar heavy object is attached to the back door, it
may suddenly shut again after being opened, causing someone’s hands,
head or neck to be caught and injured. When installing an accessory part
to the back door, using a genuine Toyota part is recommended.

●

The back door may suddenly shut if it is
not opened fully. It is more difficult to
open or close the back door on an
incline than on a level surface, so
beware of the back door unexpectedly
opening or closing by itself. Make sure
that the back door is fully open and
secure before using the luggage com-
partment.

●

When closing the back door, take extra
care to prevent your fingers etc. from
being caught.

●

When closing the back door, make sure
to press it lightly on its outer surface. If
the back door handle is used to fully
close the back door, it may result in
hands or arms being caught.

PRIUS PRIME_OM_OM47D71U_(U)

291

4-2. Opening, closing and locking the doors

4

Op
eration

o

f each

compo

nen
t

NOTICE

■

Back door damper stays

The back door is equipped with damper stays that hold the back door in
place.
Observe the following precautions.
Failure to do so may cause damage to the back door damper stay, resulting
in malfunction.

●

Do not place your hand on the damper stay or apply lateral forces to it.

●

Do not attach any foreign objects, such
as stickers, plastic sheets, or adhesives
to the damper stay rod.

●

Do not touch the damper stay rod with
gloves or other fabric items.

●

Do not attach any accessories other
than genuine Toyota parts to the back
door.

292

PRIUS PRIME_OM_OM47D71U_(U)

4-2. Opening, closing and locking the doors

Smart key system

●

Unlocks and locks the doors (



P. 281)

●

Unlocks and locks the back door (if equipped) (



P. 287)

●

Unlocks the charging port lid (if equipped) (



P. 122)

●

Unlocks and locks the charging connector (if equipped) (



P. 125)

●

Starts the hybrid system (



P. 338)

■

Antenna location

The following operations can be performed simply by carrying
the electronic key on your person, for example in your pocket.
The driver should always carry the electronic key.

Antenna outside the cabin (driver’s
side)
Antenna outside the cabin (front pas-
senger’s side)

*

Antennas inside the cabin
Antenna outside the luggage compart-
ment

*

Antenna outside the charging port lid

*

*

: If equipped

1

2

3

4

5

PRIUS PRIME_OM_OM47D71U_(U)

293

4-2. Opening, closing and locking the doors

4

Op
eration

o

f each

compo

nen
t

■

Effective range (areas within which the electronic key is detected)

When unlocking the charging port lid, when locking and unlocking the
charging connector

*

The system can be operated when the electronic key is within about 2.3
ft. (0.7 m) of the charging port lid.
When starting the hybrid system or changing power switch modes
The system can be operated when the electronic key is inside the vehi-
cle.

*

: If equipped

■

Alarms and warning messages

An alarm sounds and warning message displays shown on the multi-informa-
tion display are used to protect against unexpected accidents or theft of the
vehicle resulting from erroneous operation. When a warning message is dis-
played, take appropriate measures based on the displayed message.
When only an alarm sounds, circumstances and correction procedures are as
follows.

When locking or unlocking the doors
The system can be operated when
the electronic key is within about
2.3 ft. (0.7 m) of driver’s door handle,
front passenger’s door handle

*

and

back door opener switch

*

. (Only the

doors detecting the key can be oper-
ated.)

Alarm

Situation

Correction procedure

Exterior

alarm

sounds once for 5
seconds

An attempt was made to
lock the vehicle while a door
was open.

Close all of the doors
and lock the doors
again.

Interior

alarm

pings repeatedly

The power switch was
turned

to ACCESSORY

mode while the driver’s door
was open (The driver’s door
was opened when the
power

switch

was

in

ACCESSORY mode).

Turn the power switch
off and close the
driver’s door.

294

PRIUS PRIME_OM_OM47D71U_(U)

4-2. Opening, closing and locking the doors

■

When “Smart Key System malfunction See owner’s manual” is dis-
played on the multi-information display

The system may be malfunctioning. Have the vehicle inspected by your
Toyota dealer immediately.

■

Battery-saving function

The battery-saving function will be activated in order to prevent the electronic
key battery and the 12-volt battery from being discharged while the vehicle is
not in operation for a long time.

●

In the following situations, the smart key system may take some time to
unlock the doors.
• The electronic key has been left in an area of approximately 6 ft. (2 m) of

the outside of the vehicle for 10 minutes or longer.

• The smart key system has not been used for 5 days or longer.

●

If the smart key system has not been used for 14 days or longer, the doors
cannot be unlocked at any doors except the driver’s door. In this case, take
hold of the driver’s door handle, or use the wireless remote control or the
mechanical key, to unlock the doors.

■

Electronic Key Battery-Saving Function

When battery-saving mode is set, battery depletion is minimized by stopping
the electronic key from receiving radio waves.

Press

twice while pressing and

holding

. Confirm that the electronic

key indicator flashes 4 times.
While the battery-saving mode is set, the
smart key system cannot be used. To
cancel the function, press any of the elec-
tronic key buttons.

PRIUS PRIME_OM_OM47D71U_(U)

295

4-2. Opening, closing and locking the doors

4

Op
eration

o

f each

compo

nen
t

■

Conditions affecting operation

The smart key system, wireless remote control and immobilizer system use
weak radio waves. In the following situations, the communication between
the electronic key and the vehicle may be affected, preventing the smart key
system, wireless remote control and immobilizer system from operating prop-
erly. (Ways of coping:



P. 711)

●

When the electronic key battery is depleted

●

Near a TV tower, electric power plant, gas station, radio station, large dis-
play, airport or other facility that generates strong radio waves or electrical
noise

●

When the electronic key is in contact with, or is covered by the following
metallic objects
• Cards to which aluminum foil is attached
• Cigarette boxes that have aluminum foil inside
• Metallic wallets or bags
• Coins
• Hand warmers made of metal
• Media such as CDs and DVDs

●

When other wireless key (that emit radio waves) is being used nearby

●

When carrying the electronic key together with the following devices that
emit radio waves
• Portable radio, cellular phone, cordless phone or other wireless commu-

nication devices

• Another vehicle’s electronic key or a wireless key that emits radio waves
• Personal computers or personal digital assistants (PDAs)
• Digital audio players
• Portable game systems

●

If window tint with a metallic content or metallic objects are attached to the
rear window

●

When the electronic key is placed near a battery charger or electronic
devices

296

PRIUS PRIME_OM_OM47D71U_(U)

4-2. Opening, closing and locking the doors

■

Note for the entry function

●

Even when the electronic key is within the effective range (detection areas),
the system may not operate properly in the following cases:
• The electronic key is too close to the window or outside door handle, near

the ground, or in a high place when the doors are locked or unlocked.

• The electronic key is on the instrument panel, floor, or in the door pockets

or glove box when the hybrid system is started or power switch modes
are changed.

●

Do not leave the electronic key on top of the instrument panel or near the
door pockets when exiting the vehicle. Depending on the radio wave recep-
tion conditions, it may be detected by the antenna outside the cabin and the
door will become lockable from the outside, possibly trapping the electronic
key inside the vehicle.

●

As long as the electronic key is within the effective range, the doors may be
unlocked or locked by anyone.

●

Even if the electronic key is not inside the vehicle, it may be possible to start
the hybrid system if the electronic key is near the window.

●

The doors may unlock if a large amount of water splashes on the door han-
dle, such as in the rain or in a car wash when the electronic key is within the
effective range. (The door will automatically be locked after approximately
60 seconds if the doors are not opened and closed.)

●

If the wireless remote control is used to lock the doors when the electronic
key is near the vehicle, there is a possibility that the door may not be
unlocked by the entry function. (Use the wireless remote control to unlock
the doors.)

●

Touching the door lock sensor while wearing gloves may delay or prevent
lock operation. Remove the gloves and touch the lock sensor again.

●

If the door handle becomes wet while the electronic key is within the effec-
tive range, the door may lock and unlock repeatedly. In this case, follow the
following correction procedures to wash the vehicle.
• Place the electronic key in a location 6 ft. (2 m) or more away from the

vehicle. (Take care to ensure that the key is not stolen.)

• Set electronic key to battery-saving mode to disable the smart key sys-

tem. (



P. 294)

●

If the electronic key is inside the vehicle and a door handle becomes wet
during a car wash, a message may be shown on the multi-information dis-
play and a buzzer will sound outside the vehicle. To turn off the alarm, lock
all the doors.

●

The lock sensor may not work properly if it comes into contact with ice,
snow, mud, etc. Clean the lock sensor and attempt to operate it again.

●

A sudden approach to the effective range or door handle may prevent the
doors from being unlocked. In this case, return the door handle to the origi-
nal position and check that the doors unlock before pulling the door handle
again.

●

If there is another electronic key in the detection area, it may take slightly
longer to unlock the doors after the door handle is gripped.

PRIUS PRIME_OM_OM47D71U_(U)

297

4-2. Opening, closing and locking the doors

4

Op
eration

o

f each

compo

nen
t

■

When the vehicle is not driven for extended periods

●

To prevent theft of the vehicle, do not leave the electronic key within 6 ft.
(2 m) of the vehicle.

●

The smart key system can be deactivated in advance. (



P. 753)

■

To operate the system properly

Make sure to carry the electronic key when operating the system. Do not get
the electronic key too close to the vehicle when operating the system from the
outside of the vehicle.
Depending on the position and holding condition of the electronic key, the key
may not be detected correctly and the system may not operate properly. (The
alarm may go off accidentally, or the door lock prevention may not operate.)

■

If the smart key system does not operate properly

●

Locking and unlocking the doors: Use the mechanical key. (



P. 711)

●

Starting the hybrid system:



P. 712

■

Customization

Settings (e.g. smart key system) can be changed.
(Customizable features:



P. 753)

■

If the smart key system has been deactivated in a customized setting

●

Unlocking and locking the doors:
Use the wireless remote control or mechanical key. (



P. 282, 711)

●

Unlocking the charging port lid:



P. 123

●

Unlocking and locking the charging connector:



P. 127

●

Starting the hybrid system and changing power switch modes:



P. 712

●

Stopping the hybrid system:



P. 339

298

PRIUS PRIME_OM_OM47D71U_(U)

4-2. Opening, closing and locking the doors

■

Certifications for the smart key system



For vehicles sold in the U.S.A. and Hawaii

PRIUS PRIME_OM_OM47D71U_(U)

299

4-2. Opening, closing and locking the doors

4

Op
eration

o

f each

compo

nen
t



For vehicles sold in Canada

300

PRIUS PRIME_OM_OM47D71U_(U)

4-2. Opening, closing and locking the doors

WARNING

■

Caution regarding interference with electronic devices

●

People with implantable cardiac pacemakers, cardiac resynchronization
therapy-pacemakers or implantable cardioverter defibrillators should keep
away from the smart key system antennas. (



P. 292)

The radio waves may affect the operation of such devices. If necessary,
the entry function can be disabled. Ask your Toyota dealer for details, such
as the frequency of radio waves and timing of the emitted radio waves.
Then, consult your doctor to see if you should disable the entry function.

●

Users of any electrical medical device other than implantable cardiac
pacemakers, cardiac resynchronization therapy-pacemakers or implant-
able cardioverter defibrillators should consult the manufacturer of the
device for information about its operation under the influence of radio
waves.
Radio waves could have unexpected effects on the operation of such
medical devices.

Ask your Toyota dealer for details on disabling the entry function.

301

PRIUS PRIME_OM_OM47D71U_(U)

4-3. Adjusting the seats

4

Op
eration

o

f each

compo

nen
t

Front seats



Manual seat

Seat position adjustment lever
Seatback angle adjustment
lever
Vertical height adjustment lever
(for driver’s side)



Power seat (if equipped for driver’s side)

Seat position adjustment switch
Seat cushion (front) angle
adjustment switch
Vertical

height

adjustment

switch
Seatback angle adjustment
switch
Lumbar support adjustment
switch

Adjustment procedure

1
2

3

1
2

3

4

5

302

PRIUS PRIME_OM_OM47D71U_(U)

4-3. Adjusting the seats

■

When adjusting the seat

Take care when adjusting the seat so that the head restraint does not touch
the ceiling.

WARNING

■

When adjusting the seat position

●

Take care when adjusting the seat position to ensure that other passen-
gers are not injured by the moving seat.

●

Do not put your hands under the seat or near the moving parts to avoid
injury.
Fingers or hands may become jammed in the seat mechanism.

■

Seat adjustment

●

To reduce the risk of sliding under the lap belt during a collision, do not
recline the seat more than necessary.
If the seat is too reclined, the lap belt may slide past the hips and apply
restraint forces directly to the abdomen, or your neck may contact the
shoulder belt, increasing the risk of death or serious injury in the event of
an accident.
Adjustments should not be made while driving as the seat may unexpect-
edly move and cause the driver to lose control of the vehicle.

●

Manual seats: After adjusting the seat, make sure that the seat is locked in
position.

303

PRIUS PRIME_OM_OM47D71U_(U)

4-3. Adjusting the seats

4

Op
eration

o

f each

compo

nen
t

Rear seats

Park the vehicle in a safe place.

Apply the parking brake firmly (



P. 352) and shift the shift position to P.

(



P. 346)

Adjust the position of the front seat and the angle of the seatback.
(



P. 301)

Depending on the position of the front seat, if the seatback is folded back-
ward, it may interfere with the operation of the rear seat.

Lift up and push down the head restraints of the rear outboard
seats, and lower the head restraint of the rear center seat.
(



P. 305)

Stow the armrest of the rear seat if it is pulled out. (



P. 566)

This step is not necessary when operating the left side seat only.

Pull the seatback lock release
lever and fold the seatback down.

To avoid trapping the seat belt
between the seat and the inside of
the vehicle, pass the seat belt
inside the seat belt guide and then
return the seatback securely to
the locked position.

The seatbacks can be folded down.

Before folding down the seatbacks

Folding down the seatbacks

1

2

3

4

Returning the rear seatbacks

Seat belt guide

304

PRIUS PRIME_OM_OM47D71U_(U)

4-3. Adjusting the seats

WARNING

■

When folding the seatbacks down

Observe the following precautions. Failure to do so may result in death or
serious injury.

●

Do not fold the seatbacks down while driving.

●

Stop the vehicle on level ground, apply the parking brake firmly and shift
the shift position to P.

●

Do not allow anyone to sit on a folded seatback or in the luggage compart-
ment while driving.

●

Do not allow children to enter the luggage compartment.

●

Do not operate the rear seat if it is occupied.

●

Be careful not to get feet or hands caught in the moving parts or joints of
the seats during operation.

●

Do not allow children to operate the seat.

■

After returning the seatback to the upright position

Observe the following precautions. Failure to do so may result in death or
serious injury.

●

Check that the seat belts are not twisted or caught in the seatback.

●

Make sure that the seatback is securely
locked in position by lightly pushing it
back and forth.
If the seatback is not securely locked,
the red marking will be visible on the
seatback lock release lever. Make sure
that the red marking is not visible.

305

PRIUS PRIME_OM_OM47D71U_(U)

4-3. Adjusting the seats

4

Op
eration

o

f each

compo

nen
t

Head restraints

Up

Pull the head restraints up.

Down

Push the head restraint down while
pressing the lock release button.

■

Rear outboard seats

To fold

Pull the head restraint up while
pressing the lock release button.

To use

Lift up and push down the head
restraint to the lowest lock posi-
tion.

■

Rear center seat

Up

Pull the head restraints up.

Down

Push the head restraint down
while pressing the lock release
button.

Head restraints are provided for all seats.

Front seats

Lock release button

1

2

Rear seats

Lock release button

1

2

Lock release button

1

2

306

PRIUS PRIME_OM_OM47D71U_(U)

4-3. Adjusting the seats

■

Removing the head restraints



Front and rear center seats



Rear outboard seats

■

Installing the head restraints



Front and rear center seats

Pull the head restraint up while pressing
the lock release button.

Pull the seatback lock release lever and
fold down the seatback until it reaches
the position where the head restraints
can be removed.

Pull the head restraint up while pressing
the lock release buttons.

Align the head restraint with the installa-
tion holes and push it down to the lock
position.
Press and hold the lock release button
when lowering the head restraint.

Lock release button

1

2

Lock release
buttons

Lock release button

PRIUS PRIME_OM_OM47D71U_(U)

307

4-3. Adjusting the seats

4

Op
eration

o

f each

compo

nen
t



Rear outboard seats

■

Adjusting the height of the head restraints (front seats)

■

Adjusting the rear center seat head restraint

Always raise the head restraint one level from the stowed position when
using.

Pull the seatback lock release lever and
fold down the seatback until it reaches
the position where the head restraints
can be installed.

Align the head restraint with the installa-
tion holes and push it down to the low-
est lock position.

Make sure that the head restraints are
adjusted so that the center of the head
restraint is closest to the top of your ears.

WARNING

■

Head restraint precautions

Observe the following precautions regarding the head restraints. Failure to
do so may result in death or serious injury.

●

Use the head restraints designed for each respective seat.

●

Adjust the head restraints to the correct position at all times.

●

After adjusting the head restraints, push down on them and make sure
they are locked in position.

●

Do not drive with the head restraints removed.

1

2

308

4-4. Adjusting the steering wheel and mirrors

PRIUS PRIME_OM_OM47D71U_(U)

Steering wheel

Hold the steering wheel and
push the lever down.

Adjust to the ideal position by
moving the steering wheel hori-
zontally and vertically.

After adjustment, pull the lever up
to secure the steering wheel.

To sound the horn, press on or
close to the

mark.

Adjustment procedure

IO44PH004

1

IO44PH005

2

Horn

309

4-4. Adjusting the steering wheel and mirrors

PRIUS PRIME_OM_OM47D71U_(U)

4

Op
eration

o

f each

compo

nen
t

WARNING

■

Caution while driving

Do not adjust the steering wheel while driving.
Doing so may cause the driver to mishandle the vehicle and cause an acci-
dent, resulting in death or serious injury.

■

After adjusting the steering wheel

Make sure that the steering wheel is securely locked.
Otherwise, the steering wheel may move suddenly, possibly causing an
accident, and resulting in death or serious injury. Also, the horn may not
sound if the steering wheel is not securely locked.

310

4-4. Adjusting the steering wheel and mirrors

PRIUS PRIME_OM_OM47D71U_(U)

Inside rear view mirror

The height of the rear view mirror can be adjusted to suit your driving
posture.
Adjust the height of the rear view
mirror by moving it up and down.



Manual anti-glare inside rear view mirror

Reflected light from the headlights of vehicles behind can be reduced
by operating the lever.

Normal position
Anti-glare position

The rear view mirror’s position can be adjusted to enable suffi-
cient confirmation of the rear view.

Adjusting the height of rear view mirror

Anti-glare function

1
2

311

4-4. Adjusting the steering wheel and mirrors

PRIUS PRIME_OM_OM47D71U_(U)

4

Op
eration

o

f each

compo

nen
t



Auto anti-glare inside rear view mirror

Responding to the level of brightness of the headlights of vehicles
behind, the reflected light is automatically reduced.
Changing automatic anti-glare
function mode
On/off

When the automatic anti-glare
function is in ON mode, the indica-
tor illuminates.
The function will set to ON mode
each time the power switch is
turned to ON mode.
Pressing the button turns the func-
tion to OFF mode. (The indicator
also turns off.)

■

To prevent sensor error (vehicles with auto anti-glare inside rear view
mirror)

Indicator

To ensure that the sensors operate prop-
erly, do not touch or cover them.

WARNING

Do not adjust the position of the mirror while driving.
Doing so may lead to mishandling of the vehicle and cause an accident,
resulting in death or serious injury.

312

4-4. Adjusting the steering wheel and mirrors

PRIUS PRIME_OM_OM47D71U_(U)

Outside rear view mirrors

To select a mirror to adjust, turn
the switch.

Left
Right

To adjust the mirror, operate the
switch.

Up
Right
Down
Left

Push the mirror back in the direc-
tion of the vehicle’s rear.

Adjustment procedure

1

1
2

2

1
2
3
4

Folding the mirrors

313

4-4. Adjusting the steering wheel and mirrors

PRIUS PRIME_OM_OM47D71U_(U)

4

Op
eration

o

f each

compo

nen
t

■

Mirror angle can be adjusted when

The power switch is in ACCESSORY or ON mode.

■

When the mirrors are fogged up

The outside rear view mirrors can be cleared using the mirror defoggers. Turn
on the rear window defogger to turn on the outside rear view mirror defog-
gers. (



P. 516, 527)

WARNING

■

Important points while driving

Observe the following precautions while driving.
Failing to do so may result in loss of control of the vehicle and cause an
accident, resulting in death or serious injury.

●

Do not adjust the mirrors while driving.

●

Do not drive with the mirrors folded.

●

Both the driver and passenger side mirrors must be extended and properly
adjusted before driving.

■

When a mirror is moving

To avoid personal injury and mirror malfunction, be careful not to get your
hand caught by the moving mirror.

■

When the mirror defoggers are operating

Do not touch the rear view mirror surfaces, as they can become very hot
and burn you.

314

PRIUS PRIME_OM_OM47D71U_(U)

4-5. Opening and closing the windows

Power windows

The power windows can be opened and closed using the switches.
Operating the switch moves the side windows as follows:

Closing
One-touch closing

*

Opening
One-touch opening

*

*

: To stop the side window partway,

operate the switch in the opposite
direction.

Press the switch to lock the pas-
senger windows.

The indicator will come on.
Use this switch to prevent children
from accidentally opening or clos-
ing a passenger window.

■

The power windows can be operated when

The power switch is in ON mode.

■

Operating the power windows after turning the hybrid system off

The power windows can be operated for approximately 45 seconds even
after the power switch is turned to ACCESSORY mode or turned off. They
cannot, however, be operated once either front door is opened.

Opening and closing procedures

1
2
3
4

Window lock switch

Indicator

PRIUS PRIME_OM_OM47D71U_(U)

315

4-5. Opening and closing the windows

4

Op
eration

o

f each

compo

nen
t

■

Jam protection function

If an object becomes jammed between the side window and the window
frame while the side window is closing, side window movement is stopped
and the side window is opened slightly.

■

Catch protection function

If an object becomes caught between the door and side window while the
side window is opening, side window movement is stopped.

■

When the window cannot be opened or closed

When the jam protection function or catch protection function operates
unusually and the side window cannot be opened and closed, perform the fol-
lowing operations with the power window switch of that door.

●

Stop the vehicle. With the power switch in ON mode, within 4 seconds of the
jam protection function or catch protection function activating, continuously
operate the power window switch in the one-touch closing direction or one-
touch opening direction so that the side window can be opened and closed.

●

If the side window cannot be opened and closed even when performing the
above operations, perform the following procedure for function initialization.

Turn the power switch to ON mode.
Pull and hold the power window switch in the one-touch closing direction
and completely close the side window.
Release the power window switch for a moment, resume pulling the
switch in the one-touch closing direction, and hold it there for approxi-
mately 6 seconds or more.
Press and hold the power window switch in the one-touch opening direc-
tion. After the side window is completely opened, continue holding the
switch for an additional 1 second or more.
Release the power window switch for a moment, resume pressing the
switch in the one-touch opening direction, and hold it there for approxi-
mately 4 seconds or more.
Pull and hold the power window switch in the one-touch closing direction
again. After the side window is completely closed, continue holding the
switch for a further 1 second or more.

If you release the switch while the side window is moving, start again from
the beginning.
If the side window reverses and cannot be fully closed or opened, have the
vehicle inspected by your Toyota dealer.

■

Door lock linked window operation

●

The power windows can be opened and closed using the mechanical key.

*

(



P. 711)

●

The power windows can be opened using the wireless remote control.

*

(



P. 282)

*

: These settings must be customized at your Toyota dealer.

1

2

3

4

5

6

316

PRIUS PRIME_OM_OM47D71U_(U)

4-5. Opening and closing the windows

■

When the 12-volt battery is disconnected

The window lock switch is disabled. If necessary, press the window lock
switch after reconnecting the 12-volt battery.

■

Power window open reminder function

The buzzer sounds and a message is shown on the multi-information display
in the instrument cluster when the power switch is turned off and the driver’s
door is opened with the power windows open.

■

Customization

Settings (e.g. linked door lock operation) can be changed.
(Customizable features:



P. 753)

WARNING

Observe the following precautions.
Failing to do so may result in death or serious injury.

■

Closing the windows

●

The driver is responsible for all the power window operations, including the
operation for the passengers. In order to prevent accidental operation,
especially by a child, do not let a child operate the power windows. It is
possible for children and other passengers to have body parts caught in
the power window. Also, when riding with a child, it is recommended to use
the window lock switch. (



P. 314)

●

When using the wireless remote control or mechanical key and operating
the power windows, operate the power window after checking to make
sure that there is no possibility of any passenger having any of their body
parts caught in the side window. Also do not let a child operate side win-
dow by the wireless remote control or mechanical key. It is possible for
children and other passengers to get caught in the power window.

●

When exiting the vehicle, turn the power switch off, carry the key and exit
the vehicle along with the child. There may be accidental operation, due to
mischief, etc., that may possibly lead to an accident.

●

Check to make sure that all passengers
do not have any part of their body in a
position where it could be caught when
a side window is being operated.

PRIUS PRIME_OM_OM47D71U_(U)

317

4-5. Opening and closing the windows

4

Op
eration

o

f each

compo

nen
t

WARNING

■

Jam protection function

●

Never use any part of your body to intentionally activate the jam protection
function.

●

The jam protection function may not work if something gets jammed just
before the side window is fully closed. Be careful not to get any part of
your body jammed in the side window.

■

Catch protection function

●

Never use any part of your body or clothing to intentionally activate the
catch protection function.

●

The catch protection function may not work if something gets caught just
before the side window is fully opened. Be careful not to get any part of
your body or clothing caught in the side window.

318

PRIUS PRIME_OM_OM47D71U_(U)

4-5. Opening and closing the windows

319

PRIUS PRIME_OM_OM47D71U_(U)

5

Driving

5-1. Before driving

Driving the vehicle. . . . 320
Cargo and luggage . . ... 332
Vehicle load limits . . . . 335
Trailer towing. . . . . . 336
Dinghy towing . . . . ... 337

5-2. Driving procedures

Power (ignition) switch . .. 338
Hybrid transmission. . ... 345
Turn signal lever. . . . 351
Parking brake . . . . . 352

5-3. Operating the lights

and wipers

Headlight switch . . . . 353
AHB (Automatic High

Beam) . . . . . . . . 358

Fog light switch . . . . . 363
Windshield wipers and

washer . . . . . . . 365

5-4. Refueling

Opening the fuel tank

cap . . . . . . . . .. 371

5-5. Using the driving support

systems

Toyota Safety Sense 2.0... 376
PCS (Pre-Collision

System). . . . . . ... 384

LTA (Lane Tracing

Assist) . . . . . . . . 395

RSA (Road Sign

Assist) . . . . . . . . 410

Dynamic radar cruise

control with full-speed
range. . . . . . . ... 414

Driving mode select

switch. . . . . . . .. 430

BSM

(Blind Spot Monitor) . . 432
• The Blind Spot Monitor

function . . . . . . . 437

• The Rear Cross Traffic

Alert function. . . . . 440

Intuitive parking assist. ... 445
Parking Support Brake

function . . . . . . ... 455

S-APGS (Simple

Advanced Parking
Guidance System) . . .. 467

Driving assist systems . .. 501

5-6. Driving tips

Winter driving tips . . . . 507

320

PRIUS PRIME_OM_OM47D71U_(U)

5-1. Before driving

Driving the vehicle

Check that the charging cable is disconnected. (



P. 146)



P. 338

With the brake pedal depressed, shift the shift position to D.
(



P. 345)

Check that the shift position indicator shows D.

Release the parking brake. (



P. 352)

Gradually release the brake pedal and gently depress the accelera-
tor pedal to accelerate the vehicle.

With the shift position in D, depress the brake pedal.
If necessary, set the parking brake.

If the vehicle is to be stopped for an extended period of time, shift the shift
position to P. (



P. 346)

The following procedures should be observed to ensure safe
driving:

Before starting the hybrid system

Starting the hybrid system

Driving

Stopping

1

2

3

1

2

PRIUS PRIME_OM_OM47D71U_(U)

321

5-1. Before driving

5

Drivin

g

Stop the vehicle completely.
Set the parking brake. (



P. 352)

Shift the shift position to P. (



P. 346)

Check that the shift position indicator shows P.

Press the power switch to stop the hybrid system.
Slowly release the brake pedal.
Lock the door, making sure that you have the electronic key on your
person.

If parking on a hill, block the wheels as needed.

Firmly set the parking brake with the brake pedal depressed, and
then shift the shift position to D.
Release the brake pedal and gently depress the accelerator pedal.
Release the parking brake.

■

When starting off on an uphill

The hill-start assist control will activate. (



P. 502)

■

For electricity-saving and fuel-efficient driving

Understand the system characteristics of the vehicle to use the functions of
the hybrid system. Also, keep in mind that hybrid vehicles are similar to con-
ventional vehicles, and it is necessary to refrain from activities such as sud-
den acceleration. Refer to “Plug-in hybrid vehicle driving tips” (



P. 105).

■

Driving in the rain

●

Drive carefully when it is raining, because visibility will be reduced, the win-
dows may become fogged-up, and the road will be slippery.

●

Drive carefully when it starts to rain, because the road surface will be espe-
cially slippery.

●

Refrain from high speeds when driving on an expressway in the rain,
because there may be a layer of water between the tires and the road sur-
face, preventing the steering and brakes from operating properly.

Parking the vehicle

Starting off on a steep uphill

1

2

3

4

5

6

1

2

3

322

PRIUS PRIME_OM_OM47D71U_(U)

5-1. Before driving

■

Restraining the hybrid system output (Brake Override System)

●

When the accelerator and brake pedals are depressed at the same time, the
hybrid system output may be restrained.

●

A warning message is displayed on the multi-information display while the
system is operating. (



P. 689)

■

“ECO Accelerator Guidance” (



P. 228)

It is easier to drive in an Eco-friendly manner by driving while referring to the
“ECO Accelerator Guidance” display. Also, by using the “ECO Accelerator
Guidance”, it is easier to increase the Eco score evaluation.

●

When starting off:
While staying within the “ECO Accelerator Guidance” range, gradually
depress the accelerator pedal and accelerate to the desired speed. If exces-
sive acceleration is avoided, the “Eco-Start” score will increase.

●

When driving:
After accelerating to the desired speed, release the accelerator pedal and
drive at a stable speed within the “ECO Accelerator Guidance” range. By
keeping the vehicle within the “ECO Accelerator Guidance” range, the “Eco-
Cruise” score will increase.

●

When stopping:
When stopping the vehicle, early releasing the accelerator pedal will cause
the “Eco-Stop” score to increase.

■

Restraining sudden start (Drive-Start Control)

●

When the following unusual operation is performed, the hybrid system out-
put may be restrained.
• When the shift position is shifted from R to D/B, D/B to R, N to R, P to D/

B

*

, P to R

*

with the accelerator pedal depressed, a warning message

appears on the multi-information display. If a warning message is shown
on the multi-information display, read the message and follow the instruc-
tions.

• When the accelerator pedal is depressed too much while the vehicle is in

reverse.

●

While Drive-Start Control is being activated, your vehicle may have trou-
ble escaping from the mud or fresh snow. In such case, deactivate TRAC
(



P. 502) to cancel Drive Start Control so that the vehicle may become

able to escape from the mud or fresh snow.

*

: Depending on the situation, the shift position may not be changed.

PRIUS PRIME_OM_OM47D71U_(U)

323

5-1. Before driving

5

Drivin

g

■

Breaking in your new Toyota

To extend the life of the vehicle, observing the following precautions is recom-
mended:

●

For the first 200 miles (300 km):
Avoid sudden stops.

●

For the first 600 miles (1000 km):
• Do not drive at extremely high speeds.
• Avoid sudden acceleration.
• Do not drive at a constant speed for extended periods.

■

Operating your vehicle in a foreign country

Comply with the relevant vehicle registration laws and confirm the availability
of the correct fuel. (



P. 732)

■

For efficient use

●

Shift the shift position to D when driving.
In the N position, the gasoline engine operates but electricity cannot be gen-
erated. The hybrid battery (traction battery) will discharge, requiring unnec-
essary engine power to charge.

●

Drive your vehicle smoothly.
Avoid abrupt acceleration and deceleration. Gradual acceleration and decel-
eration will make more effective use of the electric motor (traction motor)
without having to use gasoline engine power.

●

Avoid repeated acceleration.
Repeated acceleration consumes hybrid battery (traction battery) power,
resulting in poor acceleration. Battery power can be restored by driving with
the accelerator pedal slightly released.

●

Shift the shift position to P when parking.
In the N position, the hybrid battery (traction battery) does not charge. Leav-
ing the shift position in the N position for an extended period of time may
discharge the hybrid battery (traction battery). The vehicle cannot run if the
hybrid battery (traction battery) is discharged.

324

PRIUS PRIME_OM_OM47D71U_(U)

5-1. Before driving

WARNING

Observe the following precautions.
Failure to do so may result in death or serious injury.

■

When starting the vehicle

Always keep your foot on the brake pedal while stopped with the “READY”
indicator is illuminated. This prevents the vehicle from creeping.

■

When driving the vehicle

●

Do not drive if you are unfamiliar with the location of the brake and accel-
erator pedals to avoid depressing the wrong pedal.
• Accidentally depressing the accelerator pedal instead of the brake

pedal will result in sudden acceleration that may lead to an accident.

• When backing up, you may twist your body around, leading to a diffi-

culty in operating the pedals. Make sure to operate the pedals properly.

• Make sure to keep a correct driving posture even when moving the

vehicle only slightly. This allows you to depress the brake and accelera-
tor pedals properly.

• Depress the brake pedal using your right foot. Depressing the brake

pedal using your left foot may delay response in an emergency, result-
ing in an accident.

●

The driver should pay extra attention to pedestrians when the vehicle is
powered only by the electric motor (traction motor). As there is no engine
noise, the pedestrians may misjudge the vehicle’s movement. Even
though the vehicle is equipped with the vehicle proximity notification sys-
tem, drive with care as pedestrians in the vicinity may still not notice the
vehicle if the surrounding area is noisy.

●

Do not drive the vehicle over or stop the vehicle near flammable materials
such as leaves, paper or rags.
The exhaust system and exhaust gases can be extremely hot. These hot
parts may cause a fire if there is any flammable material nearby.

●

During normal driving, do not turn off the hybrid system. Turning the hybrid
system off while driving will not cause loss of steering or braking control,
however, power assist to the steering will be lost. This will make it more
difficult to steer smoothly, so you should pull over and stop the vehicle as
soon as it is safe to do so.
In the event of an emergency, such as if it becomes impossible to stop the
vehicle in the normal way:



P. 665

PRIUS PRIME_OM_OM47D71U_(U)

325

5-1. Before driving

5

Drivin

g

WARNING

Observe the following precautions.
Failure to do so may result in death or serious injury.

■

When driving the vehicle

●

Use engine braking (shift position B instead of shift position D) to maintain
a safe speed when driving down a steep hill.
Using the brakes continuously may cause the brakes to overheat and lose
effectiveness. (



P. 346)

●

Do not adjust the positions of the steering wheel, the seat, or the inside or
outside rear view mirrors while driving.
Doing so may result in a loss of vehicle control.

●

Always check that all passengers’ arms, head or other parts of their body
are not outside the vehicle.

●

Do not drive across river crossings or through other bodies of water.
This may cause electric/electronic components to short circuit, damage
the hybrid system or cause other serious damage to the vehicle.

●

Do not drive in excess of the speed limit. Even if the legal speed limit per-
mits it, do not drive over 85 mph (140 km/h) unless your vehicle has high-
speed capability tires. Driving over 85 mph (140 km/h) may result in tire
failure, loss of control and possible injury. Be sure to consult a tire dealer
to determine whether the tires on your vehicle are high-speed capability
tires or not before driving at such speeds.

■

When driving on slippery road surfaces

●

Sudden braking, acceleration and steering may cause tire slippage and
reduce your ability to control the vehicle.

●

Sudden acceleration, engine braking due to shifting, or changes in engine
speed could cause the vehicle to skid, resulting in an accident.

●

After driving through a puddle, depress the brake pedal to make sure that
the brakes are functioning properly. Wet brake pads may prevent the
brakes from functioning properly. If the brakes on only one side are wet
and not functioning properly, steering control may be affected.

326

PRIUS PRIME_OM_OM47D71U_(U)

5-1. Before driving

WARNING

Observe the following precautions.
Failure to do so may result in death or serious injury.

■

When shifting the shift position

●

Do not let the vehicle roll backward while a forward driving position is
selected, or roll forward while the shift position is in R.
Doing so may result in an accident or damage to the vehicle.

●

Do not shift the shift position to P while the vehicle is moving.
Doing so can damage the transmission and may result in a loss of vehicle
control.

●

Do not shift the shift position to R while the vehicle is moving forward.
Doing so can damage the transmission and may result in a loss of vehicle
control.

●

Do not shift the shift position to a driving position while the vehicle is mov-
ing backward.
Doing so can damage the transmission and may result in a loss of vehicle
control.

●

Changing the shift position to N while the vehicle is moving will disengage
the hybrid system. Engine braking is not available with the hybrid system
disengaged.

●

Be careful not to change the shift position with the accelerator pedal
depressed.
Changing the shift position to any position other than P or N may lead to
unexpected rapid acceleration of the vehicle that may cause an accident
and result in death or serious injury.
After changing the shift position, make sure to confirm the current shift
position displayed on the shift position indicator inside the meter.

PRIUS PRIME_OM_OM47D71U_(U)

327

5-1. Before driving

5

Drivin

g

WARNING

Observe the following precautions.
Failure to do so may result in death or serious injury.

■

If you hear a squealing or scraping noise (brake pad wear limit indica-
tors)

Have the brake pads checked and replaced by your Toyota dealer as soon
as possible.
Rotor damage may result if the pads are not replaced when needed.
It is dangerous to drive the vehicle when the wear limits of the brake pads
and/or those of the brake discs are exceeded.

■

When the vehicle is stopped

●

Do not depress the accelerator pedal unnecessarily.
If the shift position is in any position other than P or N, the vehicle may
accelerate suddenly and unexpectedly, causing an accident.

●

In order to prevent accidents due to the vehicle rolling away, always keep
depressing the brake pedal while stopped with the “READY” indicator is
illuminated, and apply the parking brake as necessary.

●

If the vehicle is stopped on an incline, in order to prevent accidents caused
by the vehicle rolling forward or backward, always depress the brake pedal
and securely apply the parking brake as needed.

●

Avoid revving or racing the engine.
Running the engine at high speed while the vehicle is stopped may cause
the exhaust system to overheat, which could result in a fire if combustible
material is nearby.

328

PRIUS PRIME_OM_OM47D71U_(U)

5-1. Before driving

WARNING

Observe the following precautions.
Failure to do so may result in death or serious injury.

■

When the vehicle is parked

●

Do not leave glasses, cigarette lighters, spray cans, or soft drink cans in
the vehicle when it is in the sun.
Doing so may result in the following:
• Gas may leak from a cigarette lighter or spray can, and may lead to a fire.
• The temperature inside the vehicle may cause the plastic lenses and

plastic material of glasses to deform or crack.

• Soft drink cans may fracture, causing the contents to spray over the

interior of the vehicle, and may also cause a short circuit in the vehicle’s
electrical components.

●

Do not leave cigarette lighters in the vehicle. If a cigarette lighter is in a
place such as the glove box or on the floor, it may be lit accidentally when
luggage is loaded or the seat is adjusted, causing a fire.

●

Do not attach adhesive discs to the windshield or windows. Do not place con-
tainers such as air fresheners on the instrument panel or dashboard. Adhe-
sive discs or containers may act as lenses, causing a fire in the vehicle.

●

Do not leave a door or window open if the curved glass is coated with a
metallized film such as a silver-colored one. Reflected sunlight may cause
the glass to act as a lens, causing a fire.

●

Always apply the parking brake, shift the shift position to P, stop the hybrid
system and lock the vehicle.
Do not leave the vehicle unattended while the “READY” indicator is illumi-
nated.
If the vehicle is parked with the shift position in P but the parking brake is
not set, the vehicle may start to move, possibly leading to an accident.

●

Do not touch the exhaust pipe while the “READY” indicator is illuminated
or immediately after turning the hybrid system off.
Doing so may cause burns.

PRIUS PRIME_OM_OM47D71U_(U)

329

5-1. Before driving

5

Drivin

g

WARNING

Observe the following precautions.
Failure to do so may result in death or serious injury.

■

When taking a nap in the vehicle

Always turn the hybrid system off. Otherwise, if you accidentally move the
shift lever or depress the accelerator pedal, this could cause an accident or
fire due to hybrid system overheating. Additionally, if the vehicle is parked in
a poorly ventilated area, exhaust gases may collect and enter the vehicle,
leading to death or a serious health hazard.

■

When braking

●

When the brakes are wet, drive more cautiously.
Braking distance increases when the brakes are wet, and this may cause
one side of the vehicle to brake differently than the other side. Also, the
parking brake may not securely hold the vehicle.

●

If the electronically controlled assist function does not operate, do not fol-
low other vehicles closely and avoid downhill or sharp turns that require
braking.
In this case, braking is still possible, but the brake pedal should be
depressed more firmly than usual. Also, the braking distance will increase.
Have your brakes fixed immediately.

●

The brake system consists of 2 or more individual hydraulic systems; if
one of the systems fails, the other(s) will still operate. In this case, the
brake pedal should be depressed more firmly than usual and the braking
distance will increase. Have your brakes fixed immediately.

330

PRIUS PRIME_OM_OM47D71U_(U)

5-1. Before driving

NOTICE

■

When driving the vehicle

●

Do not depress the accelerator and brake pedals at the same time during
driving, as this may restrain the hybrid system output.

●

Do not use the accelerator pedal or depress the accelerator and brake
pedals at the same time to hold the vehicle on a hill.

■

When parking the vehicle

Always set the parking brake, and shift the shift position to P. Failure to do
so may cause the vehicle to move or the vehicle may accelerate suddenly if
the accelerator pedal is accidentally depressed.

■

Avoiding damage to vehicle parts

●

Do not turn the steering wheel fully in either direction and hold it there for
an extended period of time.
Doing so may damage the power steering motor.

●

When driving over bumps in the road, drive as slowly as possible to avoid
damaging the wheels, underside of the vehicle, etc.

■

If you get a flat tire while driving

A flat or damaged tire may cause the following situations. Hold the steering
wheel firmly and gradually depress the brake pedal to slow down the vehi-
cle.

●

It may be difficult to control your vehicle.

●

The vehicle will make abnormal sounds or vibrations.

●

The vehicle will lean abnormally.

Information on what to do in case of a flat tire:



P. 692

PRIUS PRIME_OM_OM47D71U_(U)

331

5-1. Before driving

5

Drivin

g

NOTICE

■

When encountering flooded roads

Do not drive on a road that has flooded after heavy rain etc. Doing so may
cause the following serious damage to the vehicle:

●

Engine stalling

●

Short in electrical components

●

Engine damage caused by water immersion

In the event that you drive on a flooded road and the vehicle is flooded, be
sure to have your Toyota dealer check the following:

●

Brake function

●

Changes in quantity and quality of oil and fluid used for the engine, hybrid
transmission, etc.

●

Lubricant condition for the bearings and suspension joints (where possi-
ble), and the function of all joints, bearings, etc.

If the shift control system is damaged by flooding, it may not be possible to
shift the shift position to P, or from P to other positions. When the shift posi-
tion cannot be changed from P to any other position, the front wheels will
lock, and you will be unable to tow the vehicle with the front wheels on the
ground, as the front wheels may be locked. In this case, transport the vehi-
cle with both front wheels or all four wheels lifted. (



P. 667)

332

PRIUS PRIME_OM_OM47D71U_(U)

5-1. Before driving

Cargo and luggage

Cargo capacity depends on the total weight of the occupants.
(Cargo capacity) = (Total load capacity) — (Total weight of occupants)

Steps for Determining Correct Load Limit



(1) Locate the statement “The combined weight of occupants and

cargo should never exceed XXX kg or XXX lbs.” on your vehicle’s
placard.

(2) Determine the combined weight of the driver and passengers that

will be riding in your vehicle.

(3) Subtract the combined weight of the driver and passengers from

XXX kg or XXX lbs.

(4) The resulting figure equals the available amount of cargo and lug-

gage load capacity.
For example, if the “XXX” amount equals 1400 lbs. and there will be
five 150 lb passengers in your vehicle, the amount of available
cargo and luggage load capacity is 650 lbs. (1400



750 (5



150) =

650 lbs.)

(5) Determine the combined weight of luggage and cargo being loaded

on the vehicle. That weight may not safely exceed the available
cargo and luggage load capacity calculated in Step 4.

(6) If your vehicle will be towing a trailer, load from your trailer will be

transferred to your vehicle. Consult this manual to determine how
this reduces the available cargo and luggage load capacity of your
vehicle. (



P. 335)

Toyota does not recommend towing a trailer with your vehicle. Your

vehicle is not designed for trailer towing.

Take notice of the following information about storage precau-
tions, cargo capacity and load.

Capacity and distribution

PRIUS PRIME_OM_OM47D71U_(U)

333

5-1. Before driving

5

Drivin

g

Cargo capacity
Total load capacity (vehicle
capacity weight) (



P. 730)

When 2 people with the combined weight of A lb. (kg) are riding in
your vehicle, which has a total load capacity (vehicle capacity weight)
of B lb. (kg), the available amount of cargo and luggage load capacity
will be C lb. (kg) as follows:
B

*

2

lb. (kg)



A

*

1

lb. (kg) = C

*

3

lb. (kg)

*

1

: A = Weight of people

*

2

: B = Total load capacity

*

3

: C = Available cargo and luggage load

In this condition, if 3 more passengers with the combined weight of

D lb. (kg) get on, the available cargo and luggage load will be reduced

E lb. (kg) as follows:

C lb. (kg)



D

*

4

lb. (kg) = E

*

5

lb. (kg)

*

4

: D = Additional weight of people

*

5

: E = Available cargo and luggage load

As shown in the example above, if the number of occupants
increases, the cargo and luggage load will be reduced by an amount
that equals the increased weight due to the additional occupants. In
other words, if an increase in the number of occupants causes an
excess of the total load capacity (combined weight of occupants plus
cargo and luggage load), you must reduce the cargo and luggage on
your vehicle.

Calculation formula for your vehicle

1
2

334

PRIUS PRIME_OM_OM47D71U_(U)

5-1. Before driving

WARNING

■

Things that must not be carried in the luggage compartment

The following things may cause a fire if loaded in the luggage compart-

ment:

●

Receptacles containing gasoline

●

Aerosol cans

■

Storage precautions

Observe the following precautions.

Failure to do so may prevent the pedals from being depressed properly,

may block the driver’s vision, or may result in items hitting the driver or

passengers, possibly causing an accident.

●

Stow cargo and luggage in the luggage compartment whenever possi-

ble.

●

Do not stack cargo and luggage in the luggage compartment higher

than the seatbacks.

●

When you fold down the rear seats, long items should not be placed

directly behind the front seats.

●

Never allow anyone to ride in the luggage compartment. It is not

designed for passengers. They should ride in their seats with their seat

belts properly fastened.

●

Do not place cargo or luggage in or on the following locations.
• At the feet of the driver

• On the front passenger or rear seats (when stacking items)

• On the luggage cover

• On the instrument panel

• On the dashboard

●

Secure all items in the occupant compartment.

■

Capacity and distribution

●

Do not exceed the maximum axle weight rating or the total vehicle

weight rating.

●

Even if the total load of occupant’s weight and the cargo load is less

than the total load capacity, do not apply the load unevenly. Improper

loading may cause deterioration of steering or braking control which

may cause death or serious injury.

335

PRIUS PRIME_OM_OM47D71U_(U)

5-1. Before driving

5

Drivin

g

Vehicle load limits

◆

Total load capacity (vehicle capacity weight):



P. 730

Total load capacity means the combined weight of occupants, cargo
and luggage.

◆

Seating capacity:



P. 730

Seating capacity means the maximum number of occupants whose
estimated average weight is 150 lb. (68 kg) per person.

◆

Towing capacity

Toyota does not recommend towing a trailer with your vehicle.

◆

Cargo capacity

Cargo capacity may increase or decrease depending on the weight
and the number of occupants.

■

Total load capacity and seating capacity

These details are also described on the tire and loading information label.

(



P. 623)

Vehicle load limits include total load capacity, seating capacity,
towing capacity and cargo capacity.

WARNING

■

Overloading the vehicle

Do not overload the vehicle.

It may not only cause damage to the tires, but also degrade steering

and braking ability, resulting in an accident.

336

PRIUS PRIME_OM_OM47D71U_(U)

5-1. Before driving

Trailer towing

Toyota does not recommend towing a trailer with your vehicle.
Toyota also does not recommend the installation of a tow hitch
or the use of a tow hitch carrier for a wheelchair, scooter, bicy-
cle, etc. Your vehicle is not designed for trailer towing or for the
use of tow hitch mounted carriers.

IO51PH002

337

PRIUS PRIME_OM_OM47D71U_(U)

5-1. Before driving

5

Drivin

g

Dinghy towing

Your vehicle is not designed to be dinghy towed (with 4 wheels
on the ground) behind a motor home.

IO51PH003

NOTICE

■

To avoid serious damage to your vehicle

Do not tow your vehicle with the four wheels on the ground.

338

PRIUS PRIME_OM_OM47D71U_(U)

5-2. Driving procedures

Power (ignition) switch

Check that the charging cable is disconnected. (



P. 146)

Check that the parking brake is set.
Firmly depress the brake pedal.

and a message will be dis-

played on the multi-information dis-
play.
When the shift position is N, the
hybrid system cannot start. Shift
the shift position to P when starting
the hybrid system. (



P. 346)

Press the power switch shortly
and firmly.

When operating the power switch,
one short, firm press is enough. It
is not necessary to press and hold
the switch.
If the “READY” indicator turns on,
the hybrid system will operate nor-
mally.
Continue depressing the brake pedal until the “READY” indicator is illumi-
nated.
The hybrid system can be started from any power switch mode.

Check that the “READY” indicator is illuminated.

If the “READY” indicator changes from a flashing light to a solid light and
the buzzer sounds, the hybrid system is starting normally.
The vehicle will not move when the “READY” indicator is off.
The vehicle can move when the “READY” indicator is on even if the engine
is stopped. (The gasoline engine starts or stops automatically in accor-
dance with the state of the vehicle.)

Performing the following operations when carrying the elec-
tronic key on your person starts the hybrid system or changes
power switch modes.

Starting the hybrid system

1

2

3

4

5

PRIUS PRIME_OM_OM47D71U_(U)

339

5-2. Driving procedures

5

Drivin

g

Stop the vehicle completely.
Set the parking brake. (



P. 352)

Shift the shift position to P.
(



P. 346)

Check that the shift position indica-
tor shows P. (



P. 345)

Press the power switch.

The hybrid system will stop.

Slowly release the brake pedal and check that the display on the
instrument cluster is off.

The meter display sequentially turns off after the hybrid system stops.
(



P. 342)

Stopping the hybrid system

1

2

3

4

5

340

PRIUS PRIME_OM_OM47D71U_(U)

5-2. Driving procedures

Modes can be changed by pressing the power switch with the brake
pedal released. (The mode changes each time the switch is pressed.)

Off

The emergency flashers can be
used.

ACCESSORY mode

Some electrical components such
as the audio system can be used.
“Accessory” is displayed on the
main display.

ON mode

All electrical components can be
used.
“Ignition ON” is displayed on the
main display.

■

Auto power off function

If the vehicle is left in ACCESSORY mode for more than 20 minutes or ON
mode (the hybrid system is not operating) for more than an hour with the shift
position in P, the power switch will automatically turn off. However, this func-
tion cannot entirely prevent the 12-volt battery discharge. Do not leave the
vehicle with the power switch in ACCESSORY or ON mode for long periods
of time when the hybrid system is not operating.

■

Sounds and vibrations specific to a hybrid vehicle



P. 96

■

Electronic key battery depletion



P. 278

■

When the ambient temperature is low, such as during winter driving con-
ditions

●

When starting the hybrid system, the flashing time of the “READY” indicator
may be long. Leave the vehicle as it is until the “READY” indicator is steady
on, as steady means the vehicle is able to move.

●

When the hybrid battery (traction battery) is extremely cold (below approxi-
mately -22°F [-30°C]) under the influence of the outside temperature, it may
not be possible to start the hybrid system. In this case, try to start the hybrid
system again after the temperature of the hybrid battery increases due to
the outside temperature increase etc.

Changing power switch modes

1

2

3

PRIUS PRIME_OM_OM47D71U_(U)

341

5-2. Driving procedures

5

Drivin

g

■

Conditions affecting operation



P. 295

■

Note for the entry function



P. 296

■

If the hybrid system does not start

●

The immobilizer system may not have been deactivated. (



P. 83)

Contact your Toyota dealer.

●

The charging cable may be connected to the vehicle. (



P. 142)

●

If a message related to start-up is shown on the multi-information display,
read the message and follow the instructions.

■

If the “READY” indicator does not come on

In the event that the “READY” indicator does not come on even after perform-
ing the proper procedures for starting the vehicle, contact your Toyota dealer
immediately.

■

If the hybrid system is malfunctioning



P. 99

■

If the electronic key battery is depleted



P. 647

■

Operation of the power switch

●

If the switch is not pressed shortly and firmly, the power switch mode may
not change or the hybrid system may not start.

●

If attempting to restart the hybrid system immediately after turning the power
switch off, the hybrid system may not start in some cases. After turning the
power switch off, please wait a few seconds before restarting the hybrid sys-
tem.

■

Automatic hybrid system shut off feature

●

The vehicle is equipped with a feature that automatically shuts off the hybrid
system when the shift position is in P with the hybrid system operating for an
extended period.

●

The hybrid system will automatically shut off after approximately 1 hour if it
has been left running while the shift position is in P.

●

The timer for the automatic hybrid system shut off feature will reset if the
brake pedal is depressed or if the shift position is in a position other than P.

●

After the vehicle is parked, if the door is locked with the door lock switch
(



P. 283) from the inside or the mechanical key (



P. 711) from the outside,

the automatic hybrid system shut off feature will be disabled. The timer for
the automatic hybrid system shut off feature will be re-enabled if the driver’s
door is opened.