Toyota Prius Prime (2022 year). Manual in english — page 36

WARNING

■

Water in the vehicle

●

Do not splash or spill liquid in the vehicle, such as on the floor, in the
hybrid battery (traction battery) air intake vent, and in the luggage com-
partment.
Doing so may cause the hybrid battery (traction battery), electrical compo-
nents, etc. to malfunction or catch fire.

●

Do not get any of the SRS components or wiring in the vehicle interior wet.
(

7-1. Maintenance and care

P. 38)

An electrical malfunction may cause the airbags to deploy or not function
properly, resulting in death or serious injury.

●

Vehicles with wireless charger:
Do not let the wireless charger (



P. 553) get wet. Failure to do so may

cause the charger to become hot and cause burns or could cause electric
shock resulting in death or serious injury.

■

Cleaning the interior (especially instrument panel)

Do not use polish wax or polish cleaner. The instrument panel may reflect
off the windshield, obstructing the driver’s view and leading to an accident,
resulting in death or serious injury.

NOTICE

■

Cleaning detergents

●

Do not use the following types of detergent, as they may discolor the vehi-
cle interior or cause streaks or damage to painted surfaces:
• Non-seat portions: Organic substances such as benzene or gasoline,

alkaline or acidic solutions, dye, and bleach

• Seats: Alkaline or acidic solutions, such as thinner, benzene, and alco-

hol

●

Do not use polish wax or polish cleaner. The instrument panel’s or other
interior part’s painted surface may be damaged.

■

Preventing damage to leather surfaces

Observe the following precautions to avoid damage to and deterioration of
leather surfaces:

●

Remove any dust or dirt from leather surfaces immediately.

●

Do not expose the vehicle to direct sunlight for extended periods of time.
Park the vehicle in the shade, especially during summer.

●

Do not place items made of vinyl, plastic, or containing wax on the uphol-
stery, as they may stick to the leather surface if the vehicle interior heats
up significantly.

584

NOTICE

■

Water on the floor

Do not wash the vehicle floor with water.
Vehicle systems such as the audio system may be damaged if water comes
into contact with electrical components such as the audio system above or
under the floor of the vehicle. Water may also cause the body to rust.

■

When cleaning the inside of the windshield

Do not allow glass cleaner to contact the lens. Also, do not touch the lens.
(

P. 371).

■

Cleaning the inside of the rear window

●

Do not use glass cleaner to clean the rear window, as this may cause
damage to the rear window defogger heater wires or antenna. Use a cloth
dampened with lukewarm water to gently wipe the window clean. Wipe the
window in strokes running parallel to the heater wires or antenna.

●

Be careful not to scratch or damage the heater wires or antenna.

■

When cleaning the air intake vents and filters

Observe the following precautions. Failure to do so may cause damage to
the vehicle.

●

When removing the air intake vent grille, make sure to turn the power
switch off to stop the hybrid system.

●

Do not use water or other liquid to clean the air intake vents or filters.

●

Do not allow water or foreign matter to enter the air intake vent when the
grille is removed.

●

Carefully handle the removed filters not to damage.
If the filter is damaged, have it replaced with a new filter by your Toyota
dealer.

●

Make sure to reinstall the filters and vents to its original positions after
cleaning.
The shape of the left side and right side filters are different. When remov-
ing both filters, be careful not to mistake the left-right installation direction.

●

Do not install anything but the filters exclusive for this vehicle to the air
intake vents or use the vehicle without installing the filters.

585

Mainten

Maintenance requirements

General maintenance should be performed on a daily basis. This can
be done by yourself or by a Toyota dealer.

Scheduled maintenance should be performed at specified intervals
according to the maintenance schedule.

For details about maintenance items and schedules, refer to the “Sched-
uled Maintenance Guide” or “Owner’s Manual Supplement”.

You can perform some maintenance procedures by yourself.
Please be aware that do-it-yourself maintenance may affect warranty
coverage.

The use of Toyota repair manuals is recommended.
For details about warranty coverage, refer to the separate “Owner’s War-
ranty Information Booklet” or “Owner’s Manual Supplement”.

To ensure safe and economical driving, day-to-day care and reg-
ular maintenance are essential. It is the owner’s responsibility to
perform regular checks. Toyota recommends the following main-
tenance:

General maintenance

Scheduled maintenance

Do-it-yourself maintenance

586

■

Repair and replacement

It is recommended that genuine Toyota parts be used for repairs to ensure
performance of each system. If non-Toyota parts are used in replacement or if
a repair shop other than a Toyota dealer performs repairs, confirm the war-
ranty coverage.

■

Resetting the message indicating maintenance is required (U.S.A. only)

After the required maintenance is preformed according to the maintenance
schedule, please reset the message.
To reset the message, follow the procedures described below:

While the hybrid system is operating, switch the multi-information display to

the

screen. (



P. 246)

Press

of the meter control switches, select

(“Vehicle

Settings”), and then press

Press

of the meter control switches, select “Maintenance Sys-

tem”, and then press

Press

of the meter control switches, select “Oil Maintenance”,

and then press

Press

of the meter control switches, select “Yes”, and then press

■

Allow inspection and repairs to be performed by a Toyota dealer

●

Toyota technicians are well-trained specialists and are kept up to date with
the latest service information. They are well informed about the operation of
all systems on your vehicle.

●

Keep a copy of the repair order. It proves that the maintenance that has
been performed is under warranty coverage. If any problem should arise
while your vehicle is under warranty, your Toyota dealer will promptly take
care of it.

A message will be displayed when the
reset procedure has been completed.

587

Mainten

WARNING

■

If your vehicle is not properly maintained

Improper maintenance could result in serious damage to the vehicle and
possible serious injury or death.

■

Handling of the 12-volt battery

●

Engine exhaust, some of its constituents, and a wide variety of automobile
components contain or emit chemicals known to the State of California to
cause cancer and birth defects and other reproductive harm. Work in a
well ventilated area.

●

Oils, fuels and fluids contained in vehicles as well as waste produced by
component wear contain or emit chemicals known to the State of Califor-
nia to cause cancer and birth defects or other reproductive harm. Avoid
exposure and wash any affected area immediately.

●

12-volt battery posts, terminals and related accessories contain lead and
lead compounds which are known to cause brain damage. Wash your
hands after handling. (



P. 605)

588

General maintenance

Listed below are the general maintenance items that should be
performed at the intervals specified in the “Owner’s Warranty
Information Booklet” or “Owner’s Manual Supplement/Sched-
uled Maintenance Guide”. It is recommended that any problem
you notice should be brought to the attention of your Toyota
dealer or qualified service shop for advice.

Engine compartment

Items

Check points

12-volt battery

Check the connections.

(

P. 605)

Brake fluid

Is the brake fluid at the correct level? (

P. 608)

Engine/power

control

unit coolant

Is the engine/power control unit coolant at the
correct level?

(

P. 602)

Engine oil

Is the engine oil at the correct level? (

P. 599)

Exhaust system

There should not be any fumes or strange
sounds.

Radiator/condenser

The radiator and condenser should be free from
foreign objects.

(

P. 604)

Washer fluid

Is there sufficient washer fluid?

(

589

Mainten

Vehicle interior

Items

Check points

Accelerator pedal

• The accelerator pedal should move smoothly

(without uneven pedal effort or catching).

Hybrid

transmission

“Park” mechanism

• When parked on a slope and the shift position

is in P, is the vehicle securely stopped?

Brake pedal

• Does the brake pedal move smoothly?
• Does the brake pedal have appropriate clear-

ance from the floor?

(

P. 733)

• Does the brake pedal have the correct

amount of free play?

(

P. 733)

Brakes

• The vehicle should not pull to one side when

the brakes are applied.

• The brakes should work effectively.
• The brake pedal should not feel spongy.
• The brake pedal should not get too close to

the floor when the brakes are applied.

Head restraints

• Do the head restraints move smoothly and

lock securely?

Indicators/buzzers

• Do the indicators and buzzers function prop-

erly?

Lights

• Do all the lights come on?
• Are the headlights aimed correctly? (



P. 650)

Parking brake

• Does the parking brake pedal move

smoothly?

• When parked on a slope and the parking

brake is on, is the vehicle securely stopped?

Seat belts

• Do the seat belts operate smoothly?
• The seat belts should not be damaged.

Seats

• Do the seat controls operate properly?

Steering wheel

• Does the steering wheel rotate smoothly?
• Does the steering wheel have the correct

amount of free play?

• There should not be any strange sounds com-

ing from the steering wheel.

590

Vehicle exterior

Items

Check points

Doors

• Do the doors operate smoothly?

Engine hood

• Does the engine hood lock system work prop-

erly?

Fluid leaks

• There should not be any signs of fluid leakage

after the vehicle has been parked.

Tires

• Is the tire inflation pressure correct?

• The tires should not be damaged or exces-

sively worn.

• Have the tires been rotated according to the

maintenance schedule?

• The wheel nuts should not be loose.

Windshield wipers

• The wiper blades should not show any signs

of cracking, splitting, wear, contamination or
deformation.

• The wiper blades should clear the windshield

without streaking or skipping.

Charging equipment

Items

Check points

Charging cable

• Check the conditions of the charging cable

and charging connector.

(

P. 121)

WARNING

■

If the hybrid system is operating

Turn the hybrid system off and ensure that there is adequate ventilation
before performing maintenance checks.

591

Mainten

Emission inspection and maintenance (I/M)

programs

The OBD system determines that a problem exists somewhere in the
emission control system. Your vehicle may not pass the I/M test and
may need to be repaired. Contact your Toyota dealer to service the
vehicle.

●

When the 12-volt battery is disconnected or discharged
Readiness codes that are set during ordinary driving are erased.
Also, depending on your driving habits, the readiness codes may
not be completely set.

●

When the fuel tank cap is loose
The malfunction indicator lamp comes on indicating a temporary
malfunction and your vehicle may not pass the I/M test.

The error code in the OBD system will not be cleared unless the vehi-
cle is driven 40 or more times.

Contact your Toyota dealer to prepare the vehicle for re-testing.

Some states have vehicle emission inspection programs which
include OBD (On Board Diagnostics) checks. The OBD system
monitors the operation of the emission control system.

If the malfunction indicator lamp comes on

Your vehicle may not pass the I/M test in the following situations:

When the malfunction indicator lamp still remains on after sev-
eral driving trips

If your vehicle does not pass the I/M test

592

Do-it-yourself service precautions

If you perform maintenance by yourself, be sure to follow the
correct procedure as given in these sections.

Items

Parts and tools

12-volt battery
condition
(



P. 605)

• Grease

• Conventional wrench (for terminal clamp bolts)

Brake fluid level
(



P. 608)

• SAE J1703 or FMVSS No.116 DOT 3 or SAE J1704

or FMVSS No.116 DOT 4 brake fluid

• Rag or paper towel
• Funnel (used only for adding brake fluid)

Engine/power
control unit cool-
ant level
(



P. 602)

• “Toyota Super Long Life Coolant” or a similar high

quality ethylene glycol-based non-silicate, non-
amine, non-nitrite and non-borate coolant with long-
life hybrid organic acid technology

For the U.S.A.:
“Toyota Super Long Life Coolant” is pre-mixed with
50% coolant and 50% deionized water.

For Canada:
“Toyota Super Long Life Coolant” is pre-mixed with
55% coolant and 45% deionized water.

• Funnel (used only for adding coolant)

Engine oil level
(



P. 599)

• “Toyota Genuine Motor Oil” or equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)

Fuses (

P. 647)

• Fuse with same amperage rating as original

Hybrid battery
(traction battery)
air intake vent
(



P. 580)

• Vacuum cleaner, etc.
• Flathead screwdriver

Headlight aim
(



P. 650)

• Phillips-head screwdriver

Light bulbs
(



P. 652)

• Bulb with same number and wattage rating as origi-

nal

• Flathead screwdriver
• Wrench

Radiator and con-
denser (

P. 604)



593

Mainten

Tire inflation

pressure

(



P. 620)

• Tire pressure gauge

• Compressed air source

Washer fluid
(



P. 610)

• Water or washer fluid containing antifreeze (for win-

ter use)

• Funnel (used only for adding water or washer fluid)

WARNING

The engine compartment contains many mechanisms and fluids that may
move suddenly, become hot, or become electrically energized. To avoid death
or serious injury, observe the following precautions.

■

When working on the engine compartment

●

Make sure that the “Accessory”, “Ignition ON” or mileage display
(

P. 210) on the main display and the “READY” indicator are both off.

●

Keep hands, clothing and tools away from the moving fan.

●

Be careful not to touch the engine, power control unit, radiator, exhaust
manifold, etc. right after driving as they may be hot. Oil and other fluids
may also be hot.

●

Do not leave anything that may burn easily, such as paper and rags, in the
engine compartment.

●

Do not smoke, cause sparks or expose an open flame to fuel. Fuel fumes
are flammable.

●

Be extremely cautious when working on the 12-volt battery. It contains poi-
sonous and corrosive sulfuric acid.

■

When working near the electric cooling fans or radiator grille

Be sure the power switch is off.
With the power switch in ON mode, the electric cooling fans may automati-
cally start to run if the air conditioning is on and/or the coolant temperature
is high. (

P. 604)

■

Safety glasses

Wear safety glasses to prevent flying or falling material, fluid spray, etc.
from getting in your eyes.

Items

Parts and tools

594

NOTICE

■

If you remove the air cleaner filter

Driving with the air cleaner filter removed may cause excessive engine wear
due to dirt in the air.

595

Mainten

Hood

Pull the hood lock release lever.

The hood will pop up slightly.

Pull the auxiliary catch lever
and lift the hood.

Hold the hood open by inserting
the supporting rod into the slot.

Release the lock from the inside of the vehicle to open the hood.

596

WARNING

■

Pre-driving check

Check that the hood is fully closed and locked.
If the hood is not locked properly, it may open while the vehicle is in motion
and cause an accident, which may result in death or serious injury.

■

To prevent burns

■

After installing the support rod into the slot

Make sure the rod supports the hood securely from falling down on to your
head or body.

■

When closing the hood

NOTICE

■

When closing the hood

Be sure to return the supporting rod to its clip before closing the hood. Clos-
ing the hood without returning the support rod properly could cause the
hood to bend.

Do not touch the air conditioning pipes
when the air conditioning compressor is
operating or after it is stopped, because
the air conditioning pipes are hot.
Touching by hands before the air condi-
tioning pipes cool down may cause
burns.

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

597

Mainten