Page 251 of 672

SIENNA_OM_OM08007U_(U)
2514-3. Operating the lights and wipers
4
Driving
WARNING
■Limitations of the Automatic High Beam
Do not rely on the Automatic High Beam. Always drive safely, taking care to
observe your surroundings and turning high beam on or off manually if nec-
essary.
NOTICE
■Camera sensor
●Do not touch the camera sensor.
● Do not subject the inside rear view mirror or the camera sensor to a strong
impact.
● Do not disassemble the camera sensor.
● Do not spill liquid onto the inside rear view mirror or the camera sensor.
● Do not apply window tinting or stickers to the camera sensor or the area of
windshield near the camera sensor.
● Do not place items on the dashboard. There is a possibility that the cam-
era sensor will mistake items reflected in the windshield for streetlights,
the headlights of other vehicles, etc.
● Do not install a parking tag or any other accessories near or around the
inside rear view mirror and the camera sensor.
● Do not overload the vehicle.
● Do not modify the vehicle.
● Do not replace windshield with a non-genuine windshield.
Contact your Toyota dealer.
■ Headlight leveling
When the vehicle is loaded, headlight level should be adjusted to appropri-
ate dial setting. ( P. 244)
Observe the following to ensure that the
Automatic High Beam functions correctly.
Page 518 of 672
518
SIENNA_OM_OM08007U_(U)
7-3. Do-it-yourself maintenance
■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 lights1
2
3
4
Front turn signal light
Headlight high beam
Fog light
Headlight low beam
(halogen bulb)
Front side marker light1
2
3
4
5
Page 522 of 672
522
SIENNA_OM_OM08007U_(U)
7-3. Do-it-yourself maintenance
■Headlight high beams and bulb type daytime running lights (if
equipped)
For left side only:
Open the fuse box cover. ( P. 514)
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.
1
2
ITO43P165
P
Q
R
S
Page 531 of 672
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
Page 534 of 672

534
SIENNA_OM_OM08007U_(U)
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.
Page 562 of 672
5628-2. Steps to take in an emergency
SIENNA_OM_OM08007U_(U)
(AWD models)
Indicates the Active Torque Control 4WD system
has overheatedA buzzer also sounds.
Immediately stop the vehicle in a safe place
and contact your Toyota dealer.
Indicates a malfunction in the brake override sys-
tem A buzzer also sounds.
Have the vehicle inspected by your Toyota
dealer.
(If equipped)
Indicates a malfunction in the Automatic High
Beam system
A buzzer also sounds.
Have the vehicle inspected by your Toyota
dealer.
Warning messageDetails/Actions
(Flashes)
Page 608 of 672

608
SIENNA_OM_OM08007U_(U)
9-1. Specifications
Light bulbs
Light bulbsBulb No.WTy p e
ExteriorHeadlights (low beam)
Discharge bulbs
Halogen bulbs
35
55 A
B
Headlights (high beam) 9005 60 C
Fog lights
*1 55 B
Front side marker lights
*2W5W 5 D
Front turn signal lights
*27444NA 28/8 E
Front turn signal/parking and
front side marker lights
*33457NAK 28/8 E
Rear turn signal lights WY21W 21 E
Tail lights W5W 5 D
Stop/tail lights
*47443 21/5 D
Back-up lights 921 16 D
License plate lights W5W 5 D
Outer foot lights W6W 6 D
InteriorFront personal/interior lights W5W 5 D
Rear personal/interior lights W5W/168 5 D
Luggage compartment light
5D
Vanity lights 7065T2 2.8 F
Front door courtesy lights 194 5 D
A: D4S discharge bulbs
B: H11 halogen bulbs
C: HB3 halogen bulbs D: Wedge base bulbs (clear)
E: Wedge base bulbs (amber) F: Double end bulbs
*1: If equipped
*2: Vehicles with LED type daytime running lights
*3: Vehicles without daytime running li ghts or with bulb type daytime running
lights
*4: Vehicles with bulb type stop/tail lights
Page 631 of 672
SIENNA_OM_OM08007U_(U)
6319-2. Customization
9
Vehicle specifications
■Automatic light control system (P. 242)
*1: If equipped
*2: U.S.A. only
■
Intuitive parking assist*1 ( P. 279)
*1: If equipped
*2: When intuitive parking assist is operating.
■
Automatic air condi tioning system (P. 412)
FunctionDefault settingCustomized
setting
Light sensor sensitivity Standard -2 to 2 O – O
Time elapsed before head-
lights automatically turn off
after doors are closed 30 secondsOff
O–O
60 seconds
90 seconds
Automatic High Beam
*1On Off – – O
Daytime running light
system
*2On Off – – O
123
FunctionDefault settingCustomized
setting
Detection distance of the
rear center sensor Far Near O – O
Buzzer volume Level 3 Level 1 to 5 O – O
Display setting
*2All sensors displayed Display off O – O
123
FunctionDefault settingCustomized
setting
A/C on operation linked
with “AUTO” button On Off O – O
123