
SIENNA_OM_OM08007U_(U)
3014-5. Using the driving support systems
4
Driving
WARNING
■TRAC may not operat e effectively when
Directional control and power may not be achievable while driving on slip-
pery road surfaces, even if the TRAC system is operating.
Drive the vehicle carefully in conditions where stability and power may be
lost.
■ Hill-start assist control (vehicles with a hill-start assist control system)
●Do not overly rely on hill-start assist control. Hill-start assist control may
not operate effectively on steep inclines and roads covered with ice.
● Unlike the parking brake, hill-start assist control is not intended to hold the
vehicle stationary for an extended period of time. Do not attempt to use
hill-start assist control to hold the vehicle on an incline, as doing so may
lead to an accident.
■ When the VSC is activated
The slip indicator light flashes. Always drive carefully. Reckless driving may
cause an accident. Exercise particular care when the indicator light flashes.
■ When the TRAC/VSC syst ems are turned off
Be especially careful and drive at a speed appropriate to the road condi-
tions. As these are the systems to help ensure vehicle stability and driving
force, do not turn the TRAC/VSC systems off unless necessary.
■
Replacing tires
Make sure that all tires are of the specified size, brand, tread pattern
and total load capacity. In addition, make sure that the tires are inflated
to the recommended tire inflation pressure level.
The ABS, TRAC and VSC systems will not function correctly if different
tires are installed on the vehicle.
Contact your Toyota dealer for further information when replacing tires
or wheels.
■Handling of tires and suspension
Using tires with any kind of problem or modifying the suspension will
affect the driving assist systems, and may cause the system to malfunc-
tion.
■ Active Torque Control 4WD system (AWD models only)
●The AWD system of this vehicle is intended to ensure driving stability on
normal roads. It is not designed for use in demanding situations such as
rally driving.
● Take care when driving on slippery road surfaces.

5568-2. Steps to take in an emergency
SIENNA_OM_OM08007U_(U)Indicates that the hood is not fully closed
If the vehicle reaches a speed of 3 mph (5 km/h),
flashes and a buzzer sounds to indicate
that the hood is not yet fully closed.
Close the hood.
Indicates that the back door is not fully closed If the vehicle reaches a speed of 3 mph (5 km/h),
flashes and a buzzer sounds to indicate
that the back door is not yet fully closed.
Close the back door.
(If equipped)
Indicates a malfunction in the intuitive parking
assist
A buzzer also sounds.
Have the vehicle inspected by your Toyota
dealer.
(If equipped)
Indicates that the intuitive parking assist is dirty or
covered with ice
A buzzer also sounds.
Clean the sensor.
Warning messageDetails/Actions

SIENNA_OM_OM08007U_(U)
6319-2. Customization
9
Vehicle specifications
■Automatic light control system (P. 242)
*1: If equipped
*2: U.S.A. only
■
Intuitive parking assist*1 ( P. 279)
*1: If equipped
*2: When intuitive parking assist is operating.
■
Automatic air condi tioning system (P. 412)
FunctionDefault settingCustomized
setting
Light sensor sensitivity Standard -2 to 2 O – O
Time elapsed before head-
lights automatically turn off
after doors are closed 30 secondsOff
O–O
60 seconds
90 seconds
Automatic High Beam
*1On Off – – O
Daytime running light
system
*2On Off – – O
123
FunctionDefault settingCustomized
setting
Detection distance of the
rear center sensor Far Near O – O
Buzzer volume Level 3 Level 1 to 5 O – O
Display setting
*2All sensors displayed Display off O – O
123
FunctionDefault settingCustomized
setting
A/C on operation linked
with “AUTO” button On Off O – O
123

656Alphabetical index
SIENNA_OM_OM08007U_(U)
AlarmAlarm ...................................... 77
Warning buzzer..................... 545
Anchor brackets ........................ 60
Antenna Smart key system ................. 143
Radio .................................... 341
Anti-lock brake system
(ABS) ...................................... 297Function ................................ 297
Warning light ......................... 546
Warning message ................. 557
Approach warning ................... 271
Armrest ..................................... 448
Assist grips .............................. 449
Audio input
*............................ 327
Audio system
*......................... 322
Antenna ................................ 341
A/V input port
*
Audio input*.......................... 327
Audio visual input
*
AUX port/USB port*............. 327
Blu-ray Disc™
*
CD player*............................ 342
DVD disc
*
DVD player*
HDMI port*
iPod*.................................... 348
MP3/WMA disc
*................... 342
Optimal use
*........................ 339
Portable music player
*......... 357
Radio
*.................................. 340
Rear seat entertainment
system
*
Steering wheel audio switch
*............................... 325
USB memory
*...................... 352
Audio visual input
*
Automatic High Beam ............. 247 Warning message ................. 562
Automatic light control system .................................... 245 Automatic transaxle
Automatic transaxle .............. 233
If the shift lever cannot be
shifted from P ..................... 238
S mode ................................. 236
AUX port
*................................. 327
Auxiliary box ........................... 438
A/V input port
*
Back door ................................. 133
Back-up lights Replacing light bulbs ............ 530
Wattage ................................ 608
Battery Battery checking ................... 492
If the vehicle has discharged battery.............. 590
Preparing and checking before winter ...................... 317
Warning light......................... 545
Warning message................. 559
Blind Spot Monitor (BSM) ....... 309
Bluetooth
®
Audio system*...................... 369
Hands-free system
*
(for cellular phone) ............. 371
Bottle holder ............................ 436
Brake Fluid ...................................... 491
Parking brake ....................... 241
Warning light......................... 545
Warning message......... 558, 562
Brake assist ............................. 297
Break-in tips............................. 195
Brightness control Instrument light control ........... 89
BSM (Blind Spot Monitor) ....... 309 Blind Spot Monitor
function............................... 312
Rear Cross Traffic Alert function............................... 314
B

661Alphabetical index
SIENNA_OM_OM08007U_(U)
Hands-free system (for cellular phone)
*............. 371
HDMI port
*
Head restraints ........................ 173
Headlights
Automatic High Beam system ......... ....................... 247
Discharge headlights
precautions ......................... 534
Light switch ........................... 242
Manual headlight leveling dial ...................................... 244
Replacing light bulbs..... 520, 522
Wattage ................................ 608
Heaters Front automatic air conditioning system ............ 412
Heated steering wheel .......... 424
Outside rear view mirrors...... 416
Rear automatic air conditioning system ............ 421
Seat heaters ......................... 424
Hill-start assist control............ 297
Hood ......................................... 483
Warning message ................. 556
Hooks Cargo .................................... 441
Grocery bag .......................... 451
Retaining hooks (floor mat)..... 24
Horn .......................................... 177 I/M test ...................................... 480
Identification
Engine .................................. 601
Vehicle .................................. 601
Ignition switch
(engine switch) .............. 225, 228
Illuminated entry system ........ 429
Indicators ................................... 82
Initialization Items to initialize ................... 634
Maintenance data ................. 475
Power back door................... 138
Power sliding door ................ 128
Tire pressure warning system .......... ...................... 497
Inside rear view mirror ............ 179
Interior lights ........................... 427 Wattage ................................ 608
Intuitive parking assist ........... 279 Function ................................ 279
Warning message................. 556
Jack Positioning a floor jack.......... 485
Vehicle-equipped jack .......... 573
Jack handle .............................. 575
Jam protection function
Moon roof ............................. 190
Power back door................... 138
Power sliding doors .............. 127
Power windows..................... 185
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