Toyota Sienna (2019 year). Instruction — part 26

Engine coolant

Is the engine coolant at the correct
level?

(

P. 413)

Engine oil

Is the engine oil at the correct level?

(

P. 411)

Exhaust system

There should not be any fumes or strange
sounds.

Radiator/condenser

The radiator and condenser should be free
from foreign objects.

(

Washer fluid

Is there sufficient washer fluid? (

P. 419)

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6-2. Maintenance

Vehicle interior

Items

Check points

Accelerator pedal

• The accelerator pedal should move

smoothly (without uneven pedal effort or
catching).

Automatic transaxle “Park”
mechanism

• When parked on a slope with the shift

lever in P, is the vehicle securely
stopped?

Brake pedal

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

clearance from the floor?

(

P. 522)

• Does the brake pedal have the correct

amount of free play?

(

P. 522)

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

properly?

Lights

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

Parking brake

• Does the parking brake lever or pedal

move smoothly?

• When parked on a slope with the parking

brake 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

coming from the steering wheel.

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6-2. Maintenance

Mainten

Vehicle exterior

Items

Check points

Doors

• Do the doors operate smoothly?

Engine hood

• Does the engine hood lock system work

properly?

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

excessively worn.

• Have the tires been rotated according

to the maintenance schedule?

• The wheel nuts should not be loose.

Windshield wipers/
rear window wiper

• The wiper blades should not show any

signs of cracking, splitting, wear, contam-
ination or deformation.

• The wiper blades should clear the wind-

shield/rear window without streaking or
skipping.

WARNING

If the engine is running
Turn the engine off and ensure that there is adequate ventilation before per-
forming maintenance checks.

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6-2. Maintenance

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 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

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Mainten

Do-it-yourself service precautions

If you perform maintenance yourself, be sure to follow the cor-
rect procedure as given in these sections.

Items

Parts and tools

Battery condition
(

P. 416)

• Warm water

• Baking soda

• Grease

• Conventional wrench (for terminal clamp bolts)

Brake fluid level
(

• FMVSS No.116 DOT 3 or SAE J1703 brake fluid
• Rag or paper towel
• Funnel (used only for adding brake fluid)

Engine coolant
level (

P. 413)

• “Toyota Super Long Life Coolant” or 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 engine coolant)

Engine oil level
(

P. 411)

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

Fuses (

P. 439)

• Fuse with same amperage rating as original

Light bulbs
(

P. 442)

• Bulb with same number and wattage rating as origi-

nal

• Phillips-head screwdriver
• Flathead screwdriver

• Wrench

Radiator and con-
denser (



Tire inflation

pressure

(

P. 429)

• Tire pressure gauge

• Compressed air source

Washer fluid
(

P. 419)

• Water or washer fluid containing antifreeze (for win-

ter use)

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

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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:

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

Be careful not to touch the engine, 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 or the bat-
tery. Fuel and battery fumes are flammable.

Be extremely cautious when working on the battery. It contains poisonous
and corrosive sulfuric acid.

When working near the electric cooling fans or radiator grille
Be sure the engine switch is in the “LOCK” position (vehicles without a
smart key system) or off (vehicles with a smart key system). With the engine
switch in the “ON” position (vehicles without a smart key system) or IGNI-
TION ON mode (vehicles with a smart key system), the electric cooling fans
may automatically start to run if the air conditioning is on and/or the coolant
temperature is high. (

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

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.

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Mainten

Hood

Pull the hood lock release lever.

The hood will pop up slightly.

Pull up 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.

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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.

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.

NOTICE

When closing the hood
Be sure to return the support rod to its clip before closing the hood. Closing
the hood with the support rod up could cause the hood to bend.

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Mainten

Positioning a floor jack

Front

Rear

When using a floor jack, follow the instructions in the manual
provided with the jack and perform the operation safely.
When raising your vehicle with a floor jack, position the jack cor-
rectly. Improper placement may damage your vehicle or cause
injury.

2WD models

AWD models

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Engine compartment

Washer fluid tank

(

P. 419)

Engine oil filler cap (

P. 412)

Engine oil level dipstick

(

P. 411)

Engine coolant reservoir

(

P. 413)

Brake fluid reservoir (

Fuse box

(

P. 439)

Battery

(

P. 416)

Electric cooling fans
Condenser

(

Radiator

(

1
2
3

5
6
7
8
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411

Mainten

With the engine at operating temperature and turned off, check the oil
level on the dipstick.

Checking the engine oil

Park the vehicle on level ground. After warming up the engine
and turning it off, wait more than 5 minutes for the oil to drain
back into the bottom of the engine.
Holding a rag under the end,
pull the dipstick out.

Wipe the dipstick clean.
Reinsert the dipstick fully.
Holding a rag under the end, pull the dipstick out and check the
oil level.

Low
Normal
Excessive

The shape of the dipstick may
differ depending on the type of
vehicle or engine.

Wipe the dipstick and reinsert it fully.

Engine oil

1
2
3

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Adding engine oil
If the oil level is below or near
the low level mark, add engine
oil of the same type as that
already in the engine.

Make sure to check the oil type and prepare the items needed
before adding oil.

Remove the oil filler cap by turning it counterclockwise.
Add engine oil slowly, checking the dipstick.
Install the oil filler cap by turning it clockwise.

Engine oil consumption
A certain amount of engine oil will be consumed while driving. In the following
situations, oil consumption may increase, and engine oil may need to be
refilled in between oil maintenance intervals.

When the engine is new, for example directly after purchasing the vehicle or
after replacing the engine

If low quality oil or oil of an inappropriate viscosity is used

When driving at high engine speeds or with a heavy load, when towing, or
when driving while accelerating or decelerating frequently

When leaving the engine idling for a long time, or when driving frequently
through heavy traffic

Engine oil selection

P. 519

Oil quantity (Low

Full)

1.9 qt. (1.8 L, 1.6 Imp.qt.)

Items

Clean funnel

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413

Mainten

The coolant level is satisfactory if it is between the “FULL” and “LOW”
lines on the reservoir when the engine is cold.

Reservoir cap
“FULL” line
“LOW” line

If the level is on or below the
“LOW” line, add coolant up to the
“FULL” line.

WARNING

Used engine oil

Used engine oil contains potentially harmful contaminants which may
cause skin disorders such as inflammation and skin cancer, so care
should be taken to avoid prolonged and repeated contact. To remove used
engine oil from your skin, wash thoroughly with soap and water.

Dispose of used oil and filters only in a safe and acceptable manner. Do
not dispose of used oil and filters in household trash, in sewers or onto the
ground. Call your Toyota dealer, service station or auto parts store for
information concerning recycling or disposal.

Do not leave used engine oil within the reach of children.

NOTICE

To prevent serious engine damage
Check the oil level on a regular basis.

When replacing the engine oil

Be careful not to spill engine oil on the vehicle components.

Avoid overfilling, or the engine could be damaged.

Check the oil level on the dipstick every time you refill the vehicle.

Be sure the engine oil filler cap is properly tightened.

Engine coolant

1
2
3

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Coolant selection
Only use “Toyota Super Long Life Coolant” or similar high quality ethylene
glycol based non-silicate, non-amine, non-nitrite, and non-borate coolant with
long-life hybrid organic acid technology.
U.S.A.:
“Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deion-
ized water.
(Minimum temperature: -31

F [-35C])

Canada:
“Toyota Super Long Life Coolant” is a mixture of 55% coolant and 45% deion-
ized water.
(Minimum temperature: -44

F [-42C])

For more details about engine coolant, contact your Toyota dealer.

If the coolant level drops within a short time of replenishing
Visually check the radiator, hoses, engine coolant reservoir caps, radiator
cap, drain cock and water pump.
If you cannot find a leak, have your Toyota dealer test the cap and check for
leaks in the cooling system.

WARNING

When the engine is hot
Do not remove the radiator/engine coolant reservoir cap.
The cooling system may be under pressure and may spray hot coolant if the
cap is removed, causing serious injuries, such as burns.

NOTICE

When adding coolant
Coolant is neither plain water nor straight antifreeze. The correct mixture of
water and antifreeze must be used to provide proper lubrication, corrosion
protection and cooling. Be sure to read the antifreeze or coolant label.

If you spill coolant
Be sure to wash it off with water to prevent it from damaging parts or paint.

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Mainten

Check the radiator and condenser and clear away any foreign objects.
If either of the above parts is extremely dirty or you are not sure of
their condition, have your vehicle inspected by your Toyota dealer.

Checking fluid level
The brake fluid level should be
between the “MAX” and “MIN”
lines on the tank.

“MAX” line
“MIN” line

Adding fluid
Lift the cover off.

Make sure to check the fluid type and prepare the necessary item.

Radiator and condenser

WARNING

When the engine is hot
Do not touch the radiator or condenser as they may be hot and cause seri-
ous injuries, such as burns.

Brake fluid

1
2

Fluid type

FMVSS No.116 DOT 3 or SAE J1703 brake fluid

Item

Clean funnel

416

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