2012 TOYOTA SIENNA Side monitor

SIENNA_U (OM45477U)
27
Event data recorder
Your vehicle has computers that monitor and control certain aspects of your
vehicle. These computers assist in driving and maintaining optimal vehicle
performance.
Besides storing data useful for troubleshooting, there is an event data
recorder (EDR) that records data in a crash or near crash event.
The SRS airbag sensor assembly contains the EDR. In a crash or near crash
event, this device may record the following information:
• Engine speed
• Whether the brake pedal was depressed or not
• Vehicle speed
• To what extent the accelerator pedal was depressed
• The transaxle shift position
• Whether the driver and front passenger wore seat belts or not
• Driver’s seat position
• SRS airbag deployment data
• SRS airbag system diagnostic data
• Front passenger’s occupant classification
The information above is intended to be used for the purpose of improving
vehicle safety performance. Unlike general data recorders, the EDR does
not record sound data such as conversation between passengers.

252
2-2. Instrument cluster and information display
SIENNA_U (OM45477U)
Multi-information display
: If equipped
The multi-information display presents the driver with a variety of
driving-related data, including the clock and current outside temper-
ature. The display varies depending on its specification.
● Clock ( P. 256)
Indicates and sets the time.
● Outside temperature display
Indicates the outside temperature.
The temperature range that can be displayed is from -40
°F (-40°C) to
122
°F (50°C).
● Air conditioning system display ( P. 388)
Automatically displayed when the air conditioning is turned on.
● Rear view monitor ( P. 321)
Automatically displayed when the shift lever is moved into R.
● Trip information ( P. 253)
Displays driving range, fuel consumption and other cruising-related
information.
● Intuitive parking assist display (if equipped) ( P. 314)

265
2-2. Instrument cluster and information display
2
When driving
SIENNA_U (OM45477U)
■
System check display
Vehicles without a smart key system
After switching the engine switch to the “ON” position, “SIENNA” is dis-
played while system operation is checked. When the system check is
complete, the normal screen will return.
Vehicles with a smart key system After switching the “ENGINE START STOP” switch to IGNITION ON
mode, “SIENNA” is displayed while system operation is checked. When
the system check is complete, the normal screen will return.
■ When “--”, “E” or “F” is displayed on the outside temperature display
The system may be malfunctioning. Take your vehicle to your Toyota dealer.
■ Outside temperature display
In the following situations, the correct outside temperature may not be dis-
played, or the display may take longer than normal to change.
● When stopped, or driving at low speeds (less than 12 mph [20 km/h])
● When the outside temperature has changed suddenly (at the entrance/
exit of a garage, tunnel, etc.)
NOTICE
■The multi-information disp lay at low temperatures
Allow the interior of the vehicle to warm up before using the liquid crystal
information display. At extremely low temperatures, the information display
monitor may respond slowly, and display changes may be delayed.

321
2-4. Using other driving systems
2
When driving
SIENNA_U (OM45477U)
Rear view monitor system
: If equipped
The rear view monitor system assists the driver by displaying an
image of the area behind the vehicle while reversing. The image is
displayed in reverse on the screen. This reversed image is a similar
image to the one on the inside rear view mirror.
The rear view image is dis-
played when the shift lever is
in the R position.
If the shift lever is shifted out of
R, the screen returns to the
previous one.

702 4-3. Do-it-yourself maintenance
SIENNA_U (OM45477U)
FuseAmpereCircuit
35 ALT 140 A Charging system, horn, left-hand
headlight (low beam), right-hand
headlight (low beam), fog light, out-
side rear view mirror heaters, rear
window defoggers, windshield
wiper de-icer
36 RAD NO.1 15 A Audio system
37 DOME 7.5 A Vanity lights, personal/interior
lights, personal lights, engine
switch light, rear ceiling lights, door
courtesy lights, luggage compart-
ment light, gauges and meters,
clock
38 ECU-B 10 A Main body ECU, smart key system,
wireless remote control, power
back door, power sliding door, rear
view monitor, multi information dis-
play, power window, outside rear
view mirror control, steering angle
sensor, auto-anti glare inside rear
view mirror, AUTO ACCESS SEAT
remote control, front passenger
occupant classification system
39 ETCS 10 A Multiport fuel injection system/
sequential multiport fuel injection
system
40 A/F 20 A Multiport fuel injection system/
sequential multiport fuel injection
system
41 STRG LOCK
*620 A Steering lock system
42 ALT-S 7.5 A Charging system

5
When trouble arises
737
5-2. Steps to take in an emergency
SIENNA_U (OM45477U)
■
SRS warning light
This warning light system monitors the airbag sensor assembly, front airbag
sensors, side and curtain shield airbag sensors, curtain shield airbag sen-
sors, driver’s seat position sensor, driver’s seat belt buckle switch, front pas-
senger occupant classification system (ECU and sensors), “AIR BAG ON”
indicator light, “AIR BAG OFF” indicator light, front passenger’s seat belt
buckle switch, seat belt pretensioner assemblies, inflators, interconnecting
wiring and power sources. ( P. 168)
■ Front passenger detection sensor and passenger seat belt reminder
● If luggage is placed on the front passenger seat, the front passenger
detection sensor may cause the warning light to flash even if a passen-
ger is not sitting in the seat.
● If a cushion is placed on the seat, the sensor may not detect a passen-
ger, and the warning light may not operate properly.
■ Electric power steering system warning light
When the voltage is low drops, the electric power steering system warning
light may come on.