Toyota Sienna (2019 year). Manual — part 28

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WARNING

When replacing wheels

Do not use wheels that are a different size from those recommended in

the Owner’s Manual, as this may result in a loss of handling control.

Never use an inner tube in a leaking wheel which is designed for a

tubeless tire. Doing so may result in an accident, causing death or seri-

ous injury.

When installing the wheel nuts

Never use oil or grease on the wheel bolts or wheel nuts.

Oil and grease may cause the wheel nuts to be excessively tightened,

leading to bolt or disc wheel damage. In addition, the oil or grease can

cause the wheel nuts to loosen and the wheel may fall off, causing an

accident and resulting in death or serious injury. Remove any oil or

grease from the wheel bolts or wheel nuts.

Use of defective wheels prohibited
Do not use cracked or deformed wheels.
Doing so could cause the tire to leak air during driving, possibly causing

an accident.

NOTICE

Replacing tire pressure warning valves and transmitters

Because tire repair or replacement may affect the tire pressure warn-

ing valves and transmitters, make sure to have tires serviced by your

Toyota dealer or other qualified service shop. In addition, make sure to

purchase your tire pressure warning valves and transmitters at your

Toyota dealer.

Ensure that only genuine Toyota wheels are used on your vehicle.

Tire pressure warning valves and transmitters may not work properly

with non-genuine wheels.

Be sure to install the wheel nuts with

the tapered ends facing inward.

Installing the nuts with the tapered

ends facing outward can cause the

wheel to break and eventually cause

the wheel to come off while driving,

which could lead to an accident

resulting in death or serious injury.

Tapered
portion

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Air conditioning filter

Turn the engine switch to the “LOCK” position (vehicles without a
smart key system) or off (vehicles with a smart key system).
Open the glove box. Slide off
the damper.

Push in each side of the glove
box to disconnect the claws.

Remove the filter cover.

The air conditioning filter must be changed regularly to maintain
air conditioning efficiency.

Removal method

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Remove the filter and replace it
with a new one.

The

“UP” marks shown on the fil-

ter should be pointing up.

Checking interval
Replace the air conditioning filter according to the maintenance schedule. In
dusty areas or areas with heavy traffic flow, more frequent cleaning or early
replacement may be required. (For scheduled maintenance information,
please refer to the “Scheduled Maintenance Guide” or “Owner’s Manual
Supplement”.)

If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace it if necessary.

NOTICE

When using the air conditioning system
Make sure that a filter is always installed.
Using the air conditioning system without a filter may cause damage to the
system.

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Wireless remote control/electronic key

battery

Flathead screwdriver

Lithium battery CR2032



Vehicles without a smart key system

Remove the cover using a coin
protected with tape etc.

Remove the depleted battery.

Insert a new battery with the “+”
terminal facing up.

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

You will need the following items:

Replacing the battery

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

Vehicles with a smart key system

Take out the mechanical key.

Remove the cover.

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

Remove the depleted battery.

Insert a new battery with the “+”
terminal facing up.

Use a CR2032 lithium battery

Batteries can be purchased at your Toyota dealer, local electrical appliance
shops or camera stores.

Replace only with the same or equivalent type recommended by the manu-
facturer.

Dispose of used batteries according to local laws.

If the key battery is depleted
The following symptoms may occur.

The smart key system (if equipped) and wireless remote control will not
function properly.

The operational range will be reduced.

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WARNING

Removed battery and other parts
These parts are small and if swallowed by a child, they can cause choking.
Keep away from children. Failure to do so could result in death or serious
injury.

NOTICE

For normal operation after replacing the battery
Observe the following precautions to prevent accidents.

Always work with dry hands.
Moisture may cause the battery to rust.

Do not touch or move any other components inside the remote control.

Do not bend either of the battery terminals.

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Checking and replacing fuses

Turn the engine switch to the “LOCK” position (vehicles without a
smart key system) or off (vehicles with a smart key system).
Open the fuse box cover.

If any of the electrical components do not operate, a fuse may
have blown. If this happens, check and replace the fuses as nec-
essary.



Engine compartment type A



Engine compartment type B

Push the tab in and lift the lid off.



Driver’s side instrument panel

Remove the lid.

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Remove the fuse.

Only type A fuses can be removed
using the pullout tool.

Check if the fuse has blown.

Normal fuse
Blown fuse

Type A and B
Replace the blown fuse with a new fuse of an appropriate amper-
age rating. The amperage rating can be found on the fuse box lid.
Type C, D and E
Contact your Toyota dealer.

1
2



Type A



Type B



Type C



Type D

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After a fuse is replaced

If the lights do not turn on even after the fuse has been replaced, a bulb may
need replacement. (

P. 442)

If the replaced fuse blows again, have the vehicle inspected by your Toyota
dealer.

If there is an overload in the circuit
The fuses are designed to blow, protecting the wiring harness from damage.



Type E

WARNING

To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failing to do so may cause damage to the vehicle, and possibly a fire or
injury.

Never use a fuse of a higher amperage rating than that indicated, or use
any other object in place of a fuse.

Always use a genuine Toyota fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.

Do not modify the fuses or fuse boxes.

NOTICE

Before replacing fuses
Have the cause of electrical overload determined and repaired by your Toy-
ota dealer as soon as possible.

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Light bulbs

Check the wattage of the light bulb to be replaced. (

P. 525)

P. 136

You may replace the following bulbs by yourself. The difficulty
level of replacement varies depending on the bulb. If necessary
bulb replacement seems difficult to perform, contact your Toy-
ota dealer.
For more information about replacing other light bulbs, contact
your Toyota dealer.

Preparing for light bulb replacement

Turning off the power back door main switch

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Front



Vehicles without daytime running lights or with bulb type daytime
running lights



Vehicles with LED type daytime running lights

Bulb locations

Headlight high beam and day-
time running lights (if equipped)
Headlight low beam
(halogen bulb)

Fog light (if equipped)
Front turn signal/parking and
front side marker lights

3
4

Front turn signal light
Headlight high beam
Fog light

Headlight low beam
(halogen bulb)
Front side marker light

1
2
3

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Rear



Vehicles with bulb type stop/tail lights



Vehicles with LED type stop/tail lights

Rear turn signal light
Back-up light
License plate lights

Tail light
Stop/tail lights

1
2
3

4
5

Tail light
License plate lights

Back-up light
Rear turn signal light

1
2

3
4

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Headlight low beams (halogen bulb)

For left side only:
Open the fuse box cover. (

P. 439)

Unplug the connector while
pushing the lock release.

Turn the bulb base counter-
clockwise.

Replacing light bulbs

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Install a new light bulb.

Align the 3 tabs on the light bulb
with the mounting, and insert.

Turn and secure the bulb
base.

Install the connector.

Shake the bulb base gently to
check that it is not loose, turn
the headlights on once and visu-
ally confirm that no light is leak-
ing through the mounting.

For left side only: Install the fuse box cover.

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Headlight high beams and bulb type daytime running lights (if
equipped)

For left side only:
Open the fuse box cover. (

P. 439)

Turn the bulb base counter-
clockwise.

Unplug the connector while
pushing the lock release.

Install a new light bulb.

Align the 3 tabs on the light bulb
with the mounting, and insert.

Turn and secure the bulb
base.

Shake the bulb base gently to
check that it is not loose, turn
the headlights on once and visu-
ally confirm that no light is leak-
ing through the mounting.

For left side only: Install the fuse box cover.

ITO43P165

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