Page 719 of 872
719
4-3. Do-it-yourself maintenance
4
Maintenance and care
SIENNA_OM_OM45483U_(U)
■
Under the driver’s side instrument panel
FuseAmpereCircuit
1P/OUTLET15 APower outlets
2 RAD NO.2 7.5 A Audio system, navigation system,
rear seat entertainment system
3 ECU-ACC 10 A Main body ECU, clock, shift lock
system, power rear view mirror
control, multiplex communication
system
4 CIG 15 A Power outlets
5 GAUGE NO.1 10 A Emergency flashers, back up
lights, navigation system, multi
information display, automatic tran-
saxle, multiport fuel injection sys-
tem/sequential multiport fuel
injection system, charging system
Page 744 of 872
744 5-2. Steps to take in an emergency
SIENNA_OM_OM45483U_(U)
Stop the vehicle immediately.The following warnings indicate the possibility of damage to the vehi-
cle that may lead to an accident. Immediately stop the vehicle in a
safe place and contact your Toyota dealer.
Have the vehicle inspected immediately.Failure to investigate the cause of the following warnings may lead to
the system operating abnormally and possibly cause an accident.
Have the vehicle inspected by your Toyota dealer immediately.
Warning lightWarning light/Details
Charging system warning light Indicates a malfunction in the vehicle’s charging system
Low engine oil pressure warning light Indicates that the engine oil pressure is too low
Warning lightWarning light/Details
(U.S.A.)
(Canada) Malfunction indicator lamp
Indicates a malfunction in:
• The electronic engine control system;
• The electronic throttle control system; or
• The electronic automatic transaxle control system
SRS warning light Indicates a malfunction in:
• The SRS airbag system;
• The front passenger occupant classification system; or
• The seat belt pretensioner system
Page 787 of 872
5
When trouble arises
787
5-2. Steps to take in an emergency
SIENNA_OM_OM45483U_(U)
■
Starting the engine when the battery is discharged
The engine cannot be started by push-starting.
■ To prevent battery discharge
●Turn off the headlights and the audio system while the engine is 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.
■ When the battery is removed or discharged
●The power sliding door (if equipped) must be initialized. ( P. 74)
● The power back door (if equipped) must be initialized. ( P. 87)
● Make sure that the key is not inside the vehicle when recharging or
replacing the battery. The key may be locked in the vehicle if the alarm is
activated. ( P. 165)
■ Charging the battery
The electricity stored in the battery will discharge gradually even when the
vehicle is not in use, due to natural discharge and the draining effects of cer-
tain electrical appliances. If the vehicle is left for a long time, the battery may
discharge, and the engine may be unable to start. (The battery recharges
automatically during driving.)
Page 804 of 872
804 6-1. Specifications
SIENNA_OM_OM45483U_(U)
Electrical system
Automatic transaxle
*: The fluid capacity is a reference quantity. If replacement is necessary,
contact your Toyota dealer.
Battery
Open voltage* at
68 F (20 C): 12.6 12.8 V Fully charged
12.2 12.4 V Half charged
11 . 8
12.0 V Discharged
(
*: Voltage checked 20 minutes after the engine
and all the lights turned off)
Charging rates 5 A max.
Fluid capacity*
2WD models
6.9 qt. (6.5 L, 5.7 Imp.qt.)
AWD models 7.1 qt. (6.7 L, 5.9 Imp.qt.)
Fluid type Toyota Genuine ATF WS
NOTICE
■Transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may cause
deterioration in shift quality, locking up of your transmission accompanied by
vibration and, ultimately, damage to the vehicle’s transmission.
Page 865 of 872
865
Alphabetical index
SIENNA_OM_OM45483U_(U)
Towing
Dinghy towing ....................... 393
Trailer towing ........................ 373
Traction control ....................... 331
TRAC ........................................ 331
Trailer towing........................... 373
Trip information display ......... 256
Trip meter................................. 246
Turn signal lights Replacing light bulbs ............ 724
Switch ................................... 243
Wattage ................................ 809
Valet key..................................... 32
Vanity lights Vanity lights .......................... 607
Wattage ................................ 809
Vanity mirrors .......................... 607
VDIM ......................................... 332
Vehicle data recordings............ 26
Vehicle identification number................................... 799
Vehicle stability control .......... 331
VSC ........................................... 331 Warning buzzers
Brake system ........................743
Open door .............................747
Seat belt reminder .................747
Warning lights Active Torque Control 4WD
system ................................750
Anti-lock brake system ..........745
Automatic High Beam indicator light.......................746
Brake assist system ..............745
Brake system ........................743
Charging system .... ...............744
Cruise control indicator light...746
Electric power steering
system ................................745
Low engine oil pressure ........744
Low fuel level ........................747
Low washer fluid ...................748
Maintenance required reminder light ......................749
Malfunction indicator lamp ....744
Master warning light ..............747
Open door .............................747
Pre-collision system ..............745
Pretensioners ........................744
Radar cruise control indicator light.......................746
Seat belt reminder light .........747
Slip indicator light ..................745
SRS airbags ..........................744
Third seat warning light ......... 749
Tire pressure warning light ....748
Warning messages ..................758
Washer
Checking ...............................687
Preparing and checking before winter .......................369
Switch............................286, 294
Washing and waxing ...............648V
W
Page 869 of 872
869
What to do if...
SIENNA_OM_OM45483U_(U)
■
Warning lights
P. 747
or
P. 7 4 3P. 747
P. 7 4 4P. 747
P. 7 4 4P. 749
P. 745
or
P. 7 4 4P. 747
P. 7 4 4P. 747
P. 750
or
P. 7 4 5P. 745
P. 7 4 5P. 746
P. 7 4 9P. 746
P. 7 4 8P. 746
P. 7 4 8P. 745
*: The light flashes to indicate a malfunction.
Brake system warning
lightOpen door warning light
Driver’s seat belt
reminder light
Charging system
warning lightFront passenger’s seat belt
reminder light
Low engine oil pressure
warning lightThird seat warning light
Malfunction indicator
lamp
Master warning light
SRS warning lightLow fuel level warning
light
“ABS” warning light
Pre-collision system
warning light
*
Slip indicator lightCruise control indicator
light
*
Maintenance required
reminder lightRadar cruise control
indicator light
*
Tire pressure warning
lightAutomatic High Beam
indicator light
*
Low washer fluid
warning lightBSM warning light
Electric power steering
system warning light
Active torque control
4WD system warning
light
