TOYOTA SIENNA 2017 XL30 / 3.G Owners Manual

SIENNA_OM_OM08007U_(U)
5317-3. Do-it-yourself maintenance
7
Maintenance and care
■License plate lightsRemove the back door trim
board.
Turn the bulb base counter-
clockwise.
Remove the light bulb.
■Replacing the following bulbs
If any of the lights listed below has burnt out, have it replaced by
your Toyota dealer.
● Headlight low beams (discharge bulbs)
● Parking lights (LED type)
● Daytime running lights (LED type)
● Side turn signal light (if equipped)
● Stop/tail lights (LED type) and rear side marker lights
● High mounted stoplight
● Outer foot lights (if equipped)
1
2
3

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7-3. Do-it-yourself maintenance
■Discharge headlights (if equipped)
If voltage to the discharge bulbs is insufficient, the bulbs may not come on, or
may go out temporarily. The discharge bulbs will come on when normal
power is restored.
■ LED lights
The daytime running lights (LED type), parking lights (LED type), stop/tail
(LED type), side turn signal light, r ear side marker lights and high mounted
stoplight consists of a number of LEDs. If any of the LEDs burn out, take your
vehicle to your Toyota dealer to have the light replaced.
■ Condensation build-up on the inside of the lens
Temporary condensation build-up on the inside of the headlight lens does not
indicate a malfunction. Contact your Toyota dealer for more information in the
following situations:
●Large drops of water have built up on the inside of the lens.
● Water has built up inside the headlight.
■ When replacing light bulbs
P. 516

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5337-3. Do-it-yourself maintenance
7
Maintenance and care
WARNING
■Replacing light bulbs
●Turn off the lights. Do not attempt to replace the bulb immediately after
turning off the lights.
The bulbs become very hot and may cause burns.
● Do not touch the glass portion of the light bulb with bare hands. When it is
unavoidable to hold the glass portion, use and hold with a clean dry cloth
to avoid getting moisture and oils on the bulb. Also, if the bulb is scratched
or dropped, it may blow out or crack.
● Fully install light bulbs and any parts used to secure them. Failure to do so
may result in heat damage, fire, or water entering the headlight unit. This
may damage the headlights or cause condensation to build up on the lens.
● Do not attempt to repair or disassemble the bulb, socket, electrical wiring,
or sub components. This may cause serious injury due to electric shock.
●Vehicles with discharge headlights:
While the low beam headlights are
turned on, and for a short time after they
have been turned off, metal compo-
nents at the rear of the headlight
assembly will be extremely hot. To pre-
vent burns, do not touch these metal
components until you are certain they
have cooled down.
Metal components

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7-3. Do-it-yourself maintenance
WARNING
■Discharge headlights (if equipped)
●Contact your Toyota dealer before replacing the discharge headlights
(including light bulbs).
● Do not touch the discharge headlight’s high voltage socket when the head-
lights are turned on.
An extremely high voltage of 30000 V will be discharged and could result
in serious injury or death by electric shock.
● Do not attempt to take apart or repair the low beam headlight bulbs, con-
nectors, power supply circuits, or related components.
Doing so could result in electric shock and death or serious injury.
■ When replacing the rear turn signal lights or stop/tail lights
Inspect the gasket for any damage (rip, tear, hole, etc.). If there is any dam-
age, please contact your Toyota dealer and have the gasket replaced.
Improper installation of the gasket may result in water entering the rear light
unit.
■ To prevent damage or fire
●Make sure bulbs are fully seated and locked.
● Check the wattage of the bulb before installing to prevent heat damage.
NOTICE
■When installing the back door trim
To prevent damage, be careful not to pinch any of the wire harnesses or
connectors with the back door trim.

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8When trouble arises
8-1. Essential informationEmergency flashers .......... 536
If your vehicle has to be stopped in an
emergency ...................... 537 8-2. Steps to take in an
emergency
If your vehicle needs to be towed ......................... 539
If you think something is wrong .............................. 543
Fuel pump shut off system ............................ 544
If a warning light turns on or a warning buzzer
sounds ............................ 545
If a warning message is displayed ......................... 554
If you have a flat tire (vehicles with
run-flat tires) .................... 570
If you have a flat tire (vehicles with a compact
spare tire) ........................ 572
If the engine will not start ................................. 586
If the electronic key does not operate properly
(vehicles with a smart
key system) ..................... 588
If the battery is discharged ...................... 590
If your vehicle overheats ........................ 594
If the vehicle becomes stuck ............................... 597

536
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8-1. Essential information
Emergency flashers
Press the switch.
All the turn signal lights will flash.
To turn them off, press the switch
once again.
■Emergency flashers
If the emergency flashers are used for a long time while the engine is not
operating, the battery may discharge.
The emergency flashers are used to warn other drivers when the
vehicle has to be stopped in th e road due to a breakdown, etc.

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8
When trouble arises
8-1. Essential information
If your vehicle has to be stopped in an emergency
Steadily step on the brake pedal with both feet and firmly depress it.
Do not pump the brake pedal repeatedly as this will increase the effort
required to slow the vehicle.
Shift the shift lever to N.
If the shift lever is shifted to N
After slowing down, stop the vehicle in a safe place by the road.
Stop the engine.
If the shift lever cannot be shifted to N
Keep depressing the brake pedal with both feet to reduce vehicle
speed as much as possible.
Vehicles without a smart key
system: Stop the engine by
turning the engine switch to the
“ACC” position.
Vehicles with a smart key sys-
tem: To stop the engine, press
and hold the engine switch for 2
consecutive seconds or more,
or press it briefly 3 times or
more in succession.
Stop the vehicle in a safe place by the road.
Only in an emergency, such as if it becomes impossible to stop
the vehicle in the normal way, st op the vehicle using the follow-
ing procedure:
1
2
3
4
3
4
Press and hold for 2 seconds or
more or press briefly 3 times or
more
R

5388-1. Essential information
SIENNA_OM_OM08007U_(U)
WARNING
■If the engine has to be turned off while driving
●Power assist for the brakes and steering wheel will be lost, making the
brake pedal harder to depress and the steering wheel heavier to turn.
Decelerate as much as possible before turning off the engine.
● Vehicles without a smart key system: Never attempt to remove the key, as
doing so will lock the steering wheel.

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8
When trouble arises
8-2. Steps to take in an emergency
If your vehicle needs to be towed
The following may indicate a problem with your transaxle. Contact
your Toyota dealer or commercial towing service before towing.
●The engine is running but the vehicle does not move.
● The vehicle makes an abnormal sound.
Do not tow with a sling-type truck
to prevent body damage.
If towing is necessary, we re commend having your vehicle
towed by your Toyota dealer or commercial towing service,
using a wheel-lift type tr uck or flat bed truck.
Use a safety chain system for all towing, and abide by all state/
provincial and local laws.
2WD models: If towing your vehicle with a wheel-lift type truck
from the front, the vehicle’s rear wheels and axles must be in
good conditions. ( P. 540, 541)
If they are damaged, use a to wing dolly or flat bed truck.
AWD models: If towing your vehicl e with a wheel-lift type truck,
use a towing dolly. ( P. 540, 541)
Situations when it is necessary to contact dealers before towing
Towing with a sling-type truck

5408-2. Steps to take in an emergency
SIENNA_OM_OM08007U_(U)
If you use chains or cables to tie
down your vehicle, the angles
shaded in black must be 45.
Do not overly tighten the tie
downs or the vehicle may be dam-
aged.
Towing with a wheel-lift type truck
From the front (2WD models)From the front (AWD models)
Release the parking brake. Use a towing dolly under the rear
wheels.
From the rear
Use a towing dolly under the front
wheels.
Using a flatbed truck