Page 15 of 668

15Pictorial index
SIENNA_OM_OM08013U_(U)Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 250
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . P. 313
To prevent freezing (windshield wiper de-icer)
*. . . . . . . . . . . . P. 412
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . P. 466
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 256
Refueling method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 256
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 600
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 492
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . P. 604
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 313
Checking/rotation/tire pressure warning system . . . . . . . . . P. 492
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . P. 566, 568
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 479
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 479
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 600
Coping with overheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 591
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 552
Headlights/parking lights/ daytime running lights
*. . . . . . . P. 239
Side marker lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 239
Fog lights
* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 249
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 237
Stop/tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 239
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 239
Back-up lights
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 233
5
6
7
8
Light bulbs of the exterior lights for driving
(Replacing method: P. 513, Watts: P. 606)
*: If equipped
9
10
11
12
13
14
15
Page 242 of 668

242
SIENNA_OM_OM08013U_(U)
4-3. Operating the lights and wipers
■Daytime running light system (if equipped)
●Bulb type: To make your vehicle more visible to other drivers during daytime
driving, the daytime running lights turn on automatically whenever the
engine is started and the parking brake is released with the headlight switch
off or in the “AUTO” position. (illuminate dimmer than the headlights) Day-
time running lights are not designed for use at night.
For the U.S.A.: Daytime running lights can be turned off by operating the
headlight switch.
LED type: To make your vehicle more visible to other drivers during daytime
driving, the daytime running lights turn on automatically whenever the
engine is started and the parking brake is released with the headlight
switch off. Daytime running lights are not designed for use at night.
For the U.S.A.: Daytime running lights can be turned off by operating the
headlight switch.
● Compared to turning on the headlights, the daytime running light system
offers greater durability and consumes less electricity, so it can help improve
fuel economy.
■ Headlight control sensor
The sensor may not function properly if an
object is placed on the sensor, or anything
that blocks the sensor is affixed to the
windshield.
Doing so interferes with the sensor
detecting the level of ambient light and
may cause the automatic headlight sys-
tem to malfunction.
Page 514 of 668
514
SIENNA_OM_OM08013U_(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 516 of 668
516
SIENNA_OM_OM08013U_(U)
7-3. Do-it-yourself maintenance
■Headlight low beams (halogen bulb)For left side only:
Open the fuse box cover. ( P. 510)
Unplug the connector while
pushing the lock release.
Turn the bulb base counter-
clockwise.
Replacing light bulbs
1
2
3
Page 517 of 668
SIENNA_OM_OM08013U_(U)
5177-3. Do-it-yourself maintenance
7
Maintenance and care
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.
4
5
6
7
Page 518 of 668
518
SIENNA_OM_OM08013U_(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. 510)
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 527 of 668
SIENNA_OM_OM08013U_(U)
5277-3. 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 528 of 668
528
SIENNA_OM_OM08013U_(U)
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. 512