2012 TOYOTA SIENNA high beam

276 2-3. Operating the lights and wipers
SIENNA_U (OM45477U)
■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.
■ Camera sensor detection information
● High beam may not be automatically turned off in the following situations:
• When oncoming vehicles suddenly appear from a curve.
• When the vehicle is cut in front of by another.
● High beam may be turned off if an oncoming vehicle that is using fog
lights without using the headlights is detected.
● Houselights, streetlights, red traffic signals, and illuminated billboards or
signs may cause the high beam to turn off.
● The following factors may affect the amount of time taken to turn high
beam on or off:
• The brightness of headlights, fog lights, and tail lights of oncoming and
preceding vehicles
• Road conditions (wetness, ice, snow etc.)
• The number of passengers and amount of baggage
● High beam may be turned on or off when unexpected by the driver.

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2-3. Operating the lights and wipers
2
When driving
SIENNA_U (OM45477U)
●
In the situations below, the system may not be able to correctly detect the
surrounding brightness levels, and may flash or expose nearby pedestri-
ans to the high beam. Therefore, you should consider turning the high
beam on or off manually rather than relying on the Automatic High Beam
system.
• In bad weather (rain, snow, fog, sandstorms etc.)
• The windshield is obscured by fog, mist, ice, dirt etc.
• The windshield is cracked or damaged.
• The inside rear view mirror or ca mera sensor is deformed or dirty.
• Surrounding brightness levels are equal to those of headlights, tail lights or fog lights.
• Vehicles ahead have headlights that are either switched off, dirty, are changing color, or are not aimed properly.
• When driving through an area of intermittently changing brightness and darkness
• When frequently and repeatedly driving ascending/descending roads, or roads with rough, bumpy or uneven surfaces (such as stone-paved
roads, gravel tracks etc.)
• When frequently and repeatedly taking curves or driving on a winding road
• There is a highly reflective object ahead of the vehicle, such as a sign or a mirror.
• The vehicle’s headlights are damaged or dirty.
• The vehicle is lifting or tilting, due to a flat tire, a trailer being towed etc.
• The Automatic High Beam indicator is flashing.
• The high beam and low beam are repeatedly being switched between in an abnormal manner.
• The driver believes that the high beam may be causing problems or distress to other drivers or pedestrians nearby.

278 2-3. Operating the lights and wipers
SIENNA_U (OM45477U)
■If the Automatic High Beam indicator flashes...
It may indicate a malfunction in the system. Contact your Toyota dealer.
■ Customization that can be configured at Toyota dealer or by the multi-
information display
The Automatic High Beam can be turned off.
(Customizable features P. 815)
■ Temporary lowering sensor sensitivity
The sensitivity of the sensor can be temporarily lowered.
To lower the sensitivity, push and hold on the inside rear view mirror
for 15 to 20 seconds, and release. The indicator light on the inside rear view
mirror will flash to indicate that the sensitivity has been lowered.
Vehicles without a smart key system:
When the engine switch is turned to the “LOCK” position, the sensitivity will
be returned to its normal level.
Vehicles with a smart key system:
When the “ENGINE START STOP” switch is turned off, the sensitivity will be
returned to its normal level.

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2-3. Operating the lights and wipers
2
When driving
SIENNA_U (OM45477U)
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 an y 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. 269)
Observe the following to ensure that the
Automatic High Beam functions correctly.

700 4-3. Do-it-yourself maintenance
SIENNA_U (OM45477U)
FuseAmpereCircuit
6 ECT 7.5 A Multiport fuel injection system/
sequential multiport fuel injection
system, automatic transaxle
7 EFI NO.2 10 A Multiport fuel injection system/
sequential multiport fuel injection
system
8 H-LP RH HI 10 A Right-hand headlight (high beam)
9 H-LP LH HI 10 A Left-hand headlight (high beam)
10 SPARE 10 A Spare-fuse 11 SPARE 15 A Spare-fuse
12 SPARE 20 A Spare-fuse
13 MG CLT 7.5 A A/C magnetic clutch
14 INV 20 A Inverter
15 PTC HTR
NO.1
*250 A PTC heater
16 PTC HTR
NO.2
*230 A PTC heater
17 PTC HTR
NO.3
*230 A PTC heater
18 A/C RR 40 A Rear air conditioning system
19 PBD 30 A Power back door
20 FOLD SEAT
*330 A Power third seat
21 HTR 50 A Air conditioning system
22 PSB
*330 A Pre-collision seat belt
23 A/A SEAT 30 A AUTO ACCESS SEAT

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4-3. Do-it-yourself maintenance
4
Maintenance and care
SIENNA_U (OM45477U)
FuseAmpereCircuit
22 TAIL 10 A Tail lights, trailer lights (tail lights),
license plate light, rear combination
lights
23 WIP ECU 7.5 A Windshield wiper and rear window
wiper
24 P/VENT 15 A Power quarter windows
25 AFS 10 A Automatic High Beam
26 WIP 30 A Windshield wiper
27 WASHER 20 A Windshield washer
28 WIP RR 20 A Rear window wiper
29 WASHER RR 15 A Rear window washer
30 HTR-IG 10 A Air conditioning system
31 SHIFT LOCK 7.5 A Shift lock system, multiport fuel
injection system/sequential multi-
port fuel injection system
32 ECU-IG NO.2 10 A Pre-collision system, pre-collision
seat belt, dynamic radar cruise
control, electric power steering,
rain-sensing windshield wipers,
driving position memory system,
power sliding door, power third
seat, power back door, multiplex
communication system
33 PSD RH 25 A Power sliding door (right-side)
34 OBD 7.5 A On-board diagnosis system
35 S-HTR FL 15 A Seat heater (left-side)
36 S-HTR FR 15 A Seat heater (right-side)

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4-3. Do-it-yourself maintenance
4
Maintenance and care
SIENNA_U (OM45477U)
Light bulbs
You may replace the following bulbs by yourself. The difficulty level
of replacement varies depending on the bulb. If necessary bulb
replacement seems difficult to perfor m, contact your Toyota dealer.
For more information about replacing other light bulbs, contact your
Toyota dealer.
■ Preparing for light bulb replacement
Check the wattage of the light bulb to be replaced. ( P. 796)
■ Turning off the power back door main switch
P. 8 4
■ Front bulb locations
Fog light Headlight high beam
and daytime running
lights Headlight
low beam
Front turn signal/parking
and front side marker
lights

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4-3. Do-it-yourself maintenance
4
Maintenance and care
SIENNA_U (OM45477U)
Turn the bulb base counterclock-
wise.
■ Headlight high beams and daytime running lights
For left side only:
Open the fuse box cover. ( P. 696)
Turn the bulb base counterclock-
wise.
Unplug the connector while
pushing the lock release.
STEP3
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STEP2
ITO43P165
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