2010 TOYOTA SIENNA headlights

478 4-3. Do-it-yourself maintenance
Fuse layout and amperage ratings■ Engine compartment
FuseAmpereCircuit
1 MAIN 30 A Headlights, daytime running light
system, H-LP RL, H-LP LL
2 AM2 30 A INJ, IGN, GAUGE 2
3 ETCS 10 A Multiport fuel injection system/
sequential multiport fuel injection
system
4 DRL 20 A Daytime running light system,
H-LP RH, H-LP LH
5 DOOR NO.2 25 A Power door lock system
6 HORN 10 A Horns
7 DOME 10 A Personal/interior lights, vanity
lights, door courtesy lights, luggage
compartment light, engine switch
light, trip information display

493
4-3. Do-it-yourself maintenance
4
Maintenance and care
■
Lights other than the above
If any of the lights listed below has burnt out, have it replaced by
your Toyota dealer.
● Headlight low beams (discharge bulbs)
● High mounted stoplight
● Front fog lights (if equipped)
● Outer foot lights (if equipped)
■Condensation build-up on th e inside of the lens
Contact your Toyota dealer for more information in the following situations.
Temporary condensation build-up on the inside of the headlight lens does
not indicate a malfunction.
● Large drops of water are built up on the inside of the lens.
● Water has built up inside the headlight.
■ Discharge headlights
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 high mounted stoplight
The 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.

494 4-3. Do-it-yourself maintenance
CAUTION
■Replacing light bulbs
●Turn off the headlights. Do not attempt to replace the bulb immediately
after turning off the headlights.
The bulbs become very hot and may cause burns.
● Do not touch the glass portion of the light bulb with bare hands. Hold the
bulb by the plastic or metal portion.
If the bulb is scratched or dropped it may blow out or crack.
● Fully install light bulbs and any parts used to secure them. Failing 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 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 serious injury or death.
■ Discharge headlights
●Contact your Toyota dealer before replacing discharge headlights (includ-
ing light bulbs).
● Do not touch the high-intensity discharge headlight’s high voltage socket
when the headlights are turned on.
An extremely high voltage of 20000 V will be discharged and could result
in serious injury or death by electric shock.
■ To prevent damage or fire
Make sure bulbs are fully seated and locked.
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.

5
When trouble arises
529
5-2. Steps to take in an emergency
If the engine will not star t
If the engine still does not start after following the correct starting
procedure ( P. 167) or releasing the steering lock (P. 168), confirm
the following points.
■ The engine will not start even when the starter motor oper-
ates normally.
One of the following may be the cause of the problem.
●There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
● The engine may be flooded.
Try to restart the engine once more following correct starting
procedures. ( P. 167)
● There may be a malfunction in the engine immobilizer system
(if equipped). ( P. 11 1 )
■ The starter motor turns over slowly, the interior lights and
headlights are dim, or the horn does not sound or sounds at
a low volume.
One of the following may be the cause of the problem.
●The battery may be discharged. ( P. 532)
● The battery terminal connec tions may be loose or corroded.
■ The starter motor does not turn over, the interior lights and
headlights do not turn on, or the horn does not sound.
One of the following may be the cause of the problem.
● One or both of the battery terminals may be disconnected.
● The battery may be discharged. ( P. 532)
Contact your Toyota dealer if the problem cannot be repaired, or if
repair procedures are unknown.

5
When trouble arises
533
5-2. Steps to take in an emergency
■
Starting the engine when the battery is discharged
The engine cannot be started by push-starting.
■ Avoiding a discharged battery
●Turn off the headlights and the audio system while the engine is turned
off.
● Turn off any unnecessary electrical components when the vehicle is run-
ning at a low speed for an extended period, such as in heavy traffic, etc.
■ When the battery is removed or discharged
●The power sliding door (if equipped) must be initialized. ( P. 37)
● The power back door (if equipped) must be initialized. ( P. 47)
● The power window must be initialized. ( P. 100)
● The moon roof (if equipped) must be initialized. ( P. 104)
Once the vehicle’s engine has started, remove the jumper
cables in the exact reverse order in which they were con-
nected.
Once the engine starts, have the vehicle checked at your Toyota
dealer as soon as possible.STEP4

549
6-1. Specifications
6
Vehicle specifications
Light bulbs
A: D2R discharge bulbs
B: HB4 halogen bulbs
C: HB3 halogen bulbs D: Wedge base bulbs (clear)
E: Wedge base bulbs (amber) F: Double end bulbs
Light BulbsBulb No.WTy p e
Exterior Headlights (low beam)
With discharge headlights
Without discharge headlights 
9006 35
51A
B
Headlights (high beam) 9005 60 C
Front fog lights 9006 51 B
Front turn signal and parking
lights 3457A 27/7 E
Front side marker lights 5E
Rear turn signal lights 7440 21 D
Stop/tail and rear side marker
lights 7443 21/5 D
Tail lights 194 3.8 D
Back-up lights 921 16 D
License plate lights 5D
Outer foot lights 6D
InteriorFront personal/interior lights
4.9 D
Rear personal/interior lights 5.0 D
Luggage compartment light 5F
Vanity lights 3F
Front door courtesy lights 6F
Sliding door courtesy lights 3.8 D

566 6-2. Customization
Wireless
remote con-
trol
(
P. 27)Power sliding door
operation
On Off
Press and hold Press twice
One short press
Power back door oper-
ation On Off
Press and hold Press twice
One short press
Door lock
(
P. 33) Unlocking using a key
Driver's door
unlocked in one step, all doors
unlocked in two steps All doors
unlocked in one step
Speed-detecting auto-
matic door lock function Off On
Opening driver's door
unlocks all doors Off On
Shifting gears to P
unlocks all doors On Off
Shifting gears to posi-
tion other than P locks
all doors On Off
Power slid-
ing door
(if equipped)
(
P. 37) Operation signal
(buzzer)
OffLoud sound
Low sound
Opening and closing
operation Push and hold One short push
Automatic
light control
system
( P. 185) Time elapsed before
headlights automati-
cally turn off after doors
are closed
30 seconds0 second
60 seconds
90 seconds
Light sensor sensitivity Level 3 Level 1 to 5
ItemFunctionDefault settingCustomized setting

582 Alphabetical index
Front fog lightsReplacing light bulbs ............. 486
Switch.................................... 190
Wattage ................................. 549
Front manual air conditioning
system .................................... 240
Front passenger occupant classification system ............ 130
Front passenger's seat belt reminder light......................... 507
Front seats
Adjustment ..............................56
Front side marker lights Replacing light bulbs ............. 486
Switch.................................... 185
Wattage ................................. 549
Front turn signal lights
Replacing light bulbs ............. 486
Wattage ................................. 549
Fuel
Capacity ................................ 544
Fuel gauge ............................ 174
Fuel pump shut off system .... 501
Gas station information ......... 592
Information ............................ 550
Refueling ............................... 107
Type ...................................... 544
Fuel door................................... 107
Fuel filler door .......................... 107
Fuel pump shut off system ..... 501
Fuses......................................... 474 Garage door opener ................ 405
Garage door opener box ......... 410
Gas station information .......... 592
Gauges...................................... 174
Glove box ................................. 365
Grocery bag hooks .................. 394
Hands-free system
(for cellular phone) ................ 327
Head restraints
Adjusting ................................ 82
Headlights Manual headlight leveling
dial ...................................... 187
Replacing light bulbs ............. 486
Switch ................................... 185
Wattage................................. 549
Heaters Seat heaters.......................... 390
Side mirror ............................ 260
Hood.......................................... 434
Hooks Cargo hooks.......................... 402
Grocery bag hooks................ 394G
H