headlight bulb TOYOTA SIENNA 2018 Owners Manual (in English)

17Pictorial index
SIENNA_OM_OM08019U_(U)Headlights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 241
Headlights/daytime running lights
*1, 2 . . . . . . . . . . . . . . . . P. 241
Turn signal lights/side marker lights
*1, 3. . . . . . . . . . . P. 239, 241
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 239
Parking lights/side marker lights
*1, 2. . . . . . . . . . . . . . . . . . P. 241
Parking lights/daytime running lights
*1, 3. . . . . . . . . . . . . . P. 241
Fog lights
*1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 251
Stop/tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 241
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 241
Back-up lights
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 233
Light bulbs of the exterior lights for driving
(Replacing method: P. 442, Watts: P. 525)
*1: If equipped
*2: Vehicles without daytime running lights or
with bulb type daytime running lights
*3:Vehicles with LED type daytime running lights
9
10
11
12
13
14
15
16
17
18

244
SIENNA_OM_OM08019U_(U)
4-3. Operating the lights and wipers
■Daytime running light system (if equipped)
●Bulb type: The daytime running lights illuminate using the same lights as the
headlights and illuminate dimmer than the headlights.
● LED type: The daytime running lights illuminate using the same lights as the
parking lights and illuminate brighter than the parking lights.
● To make your vehicle more visible to other drivers during dayti me driving,
the daytime running lights turn on automatically when all of the following
conditions are met. (The daytime running lights are not designe d for use at
night.)
• The engine is running
• The parking brake is released
• The headlight switch is in the (Canada only), or “AUTO”
*
position
*: When the surroundings are bright
The daytime running lights remain on after they illuminate, even if the parking
brake is set again.
● For the U.S.A.: Daytime running lights can be turned off by ope rating the
headlight switch.
● Compared to turning on the headlights, the daytime running ligh t 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.

SIENNA_OM_OM08019U_(U)
4436-3. Do-it-yourself maintenance
6
Maintenance and care
■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

SIENNA_OM_OM08019U_(U)
4456-3. Do-it-yourself maintenance
6
Maintenance and care
■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
1
2
3

446
SIENNA_OM_OM08019U_(U)
6-3. Do-it-yourself maintenance
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

SIENNA_OM_OM08019U_(U)
4476-3. Do-it-yourself maintenance
6
Maintenance and care
■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.
1
2
ITO43P165
P
4
5
6

456
SIENNA_OM_OM08019U_(U)
6-3. Do-it-yourself maintenance
■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 replac ed 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 (L ED type) and rear side marker lights
● High mounted stoplight
● Outer foot lights (if equipped)
1
2
3

SIENNA_OM_OM08019U_(U)
4576-3. Do-it-yourself maintenance
6
Maintenance and care
■Discharge headlights (if equipped)
If voltage to the discharge bulbs is insufficient, the bulbs ma y not come on, or
may go out temporarily. The discharge bulbs will come on when n ormal
power is restored.
■ LED lights
The daytime running lights (LED type), parking lights (LED type ), stop/tail
(LED type), side turn signal light, rear 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.

458
SIENNA_OM_OM08019U_(U)
6-3. Do-it-yourself maintenance
WARNING
■Replacing light bulbs
● Turn off the lights. Do not attempt to replace the bulb immedia tely 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 clea n dry cloth
to avoid getting moisture and oils on the bulb. Also, if the bu lb is scratched
or dropped, it may blow out or crack.
● Fully install light bulbs and any parts used to secure them. Fa ilure to do so
may result in heat damage, fire, or water entering the headligh t 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, elect rical wiring,
or sub components. This may cause serious injury due to electri c 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

SIENNA_OM_OM08019U_(U)
4596-3. Do-it-yourself maintenance
6
Maintenance and care
WARNING
■Discharge headlight s (if equipped)
● Contact your Toyota dealer bef ore 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 cou ld result
in serious injury or death by electric shock.
● Do not attempt to take apart or repair the low beam headlight b ulbs, con-
nectors, power supply circuits, or related components.
Doing so could result in electric shock and death or serious in jury.
■ When replacing the r ear turn signal lights or stop/tail lights
Inspect the gasket for any damage (rip, tear, hole, etc.). If t here is any dam-
age, please contact your Toyota dealer and have the gasket replaced.
Improper installation of the gasket may result in water enterin g 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 th e back door trim
To prevent damage, be careful not to pinch any of the wire harn esses or
connectors with the back door trim.