Page 736 of 860

736 5-2. Steps to take in an emergency
SIENNA_U (OM45477U)
*1:Open door warning buzzer:A buzzer will sound if the vehicle reaches a speed of 3 mph (5 km/h) with any
door open.
*2:Driver’s and front passenger’s seat belt warning buzzers:The driver’s and front passenger’s seat belt warning buzzers sound to alert
the driver and front passenger that his or her seat belt is not fastened. The
buzzer sounds intermittently for 10 seconds after the vehicle has reached a
speed of 12 mph (20 km/h). Then, if the seat belt is still unfastened, the
buzzer will sound at a different tone for 20 more seconds.
*3:Refer to the separate “Scheduled Maintenance Guide” or “Owner’s ManualSupplement” for the maintenance interval applicable to your vehicle.
Warning lightWarning light/DetailsCorrection procedure
(AWD models) Active Torque Control
4WD system warning light
When the light blinks: The
system has been over-
loaded and front-wheel
drive has been automati-
cally engaged. Drop your speed or stop the
vehicle until the light stops
blinking. (Do not stop the
engine.)
When the light comes on:
Malfunction in the Active
Torque Control 4WD sys-
tem. Have the system checked
by your Toyota dealer.
Page 754 of 860
754 5-2. Steps to take in an emergency
SIENNA_U (OM45477U)Firmly tighten each wheel nut
two or three times in the order
shown in the
illustration.
Tightening torque:
76 ft•lbf (103 N•m, 10.5 kgf•m)
Stow the flat tire, tire jack and all tools.
Stowing the flat tire
Remove clasps and strap.
Place tire standing up in rear tub,
after putting the tire in the tire
bag.
STEP4
STEP5
STEP1
STEP2
Page 759 of 860

5
When trouble arises
759
5-2. Steps to take in an emergency
SIENNA_U (OM45477U)
CAUTION
■Replacing a flat tire
●Observe the following precautions.
Failure to do so may resu
lt in serious injury:
• Do not touch the disc wheels or the area around the brakes imme- diately after the vehicle has been driven.
After the vehicle has been driven the disc wheels and the area
around the brakes will be extremely hot. Touching these areas with
hands, feet or other body parts while changing a tire, etc. may
result in burns.
• Remove the spare tire before jacking up the vehicle. If the spare tire is removed after jacking up the vehicle, the tire carrier and the
spare tire may interfere with the jack and cause a serious accident.
●Failure to follow these precautions could cause the wheel nuts to
loosen and the tire to fall off, resulting on death or serious injury.
• Have the wheel nuts tightened with a torque wrench to 76 ft•lbf(103 N•m, 10.5 kgf•m) as soon as possible after changing wheels.
• When installing a tire, only use wheel nuts that have been specifi- cally designed for that wheel.
• If there are any cracks or deformations in the bolt screws, nut threads or bolt holes of the wh eel, have the vehicle inspected by
your Toyota dealer.
• When installing the wheel nuts, be sure to install them with the
tapered end facing inward. ( P. 689)
Page 794 of 860
794 6-1. Specifications
SIENNA_U (OM45477U)
Tires and wheels
17-inch tires
18-inch tires
Tire size P235/60R17 100T,
T155/80R17 101M (spare)
Tire inflation pressure
(Recommended cold tire
inflation pressure)Front: 35 psi (240 kPa, 2.4 kgf/cm2 or bar)
Rear: 35 psi (240 kPa, 2.4 kgf/cm2 or bar)
Spare: 60 psi (420 kPa, 4.2 kgf/cm2 or bar)
Wheel size 17 x 7J, 17 x 4T (spare)
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)
Tire size P235/55R18 99V, P235/55RF18 99T,
T155/80R17 101M (spare)
Tire inflation pressure
(Recommended cold tire
inflation pressure)Front: 35 psi (240 kPa, 2.4 kgf/cm2 or bar)
Rear: 35 psi (240 kPa, 2.4 kgf/cm2 or bar)
Vehicles without run-flat tires:
Spare: 60 psi (420 kPa, 4.2 kgf/cm
2 or bar)
Wheel size 18 x 7J, 17 x 4T (spare)
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)
Page 795 of 860
795
6-1. Specifications
6
Vehicle specifications
SIENNA_U (OM45477U)
19-inch tires
Tire size
P235/50R19 99V,
T155/80R17 101M (spare)
Tire inflation pressure
(Recommended cold tire
inflation pressure)Front: 36 psi (250 kPa, 2.5 kgf/cm2 or bar)
Rear: 36 psi (250 kPa, 2.5 kgf/cm2 or bar)
Spare:60 psi (420 kPa, 4.2 kgf/cm2 or bar)
Wheel size 19 x 7J, 17 x 4T (spare)
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)
Page 844 of 860

844
SIENNA_U (OM45477U)
Alphabetical index
Alphabetical index
A/C .....................380, 388, 398, 401
ABS ...........................................327
Active head restraint ................. 98
Active Torque Control 4WD system ...........................328
Air conditioning filter............... 690
Air conditioning system Air conditioning filter ..............690
Front automatic air
conditioning system ............388
Front manual air conditioning system ............380
Rear automatic air conditioning system ............401
Rear manual air
conditioning system ............398
Airbags Airbag operating
conditions............................ 173
Airbag precautions for your child ....................... 177
Airbag warning light............... 730
Curtain shield airbag operating conditions............173
Curtain shield airbag precautions .........................177
Front passenger occupant
classification system ...........183
General airbag precautions .........................177
Locations of airbags ..............168
Modification and disposal of airbags ..............182
Proper driving posture ........................166, 177
Side and curtain shield
airbags operating
conditions............................ 173
Side and curtain shield
airbags precautions ............177
SRS airbags .......................... 168 Alarm......................................... 162
Antenna ............................ 418, 467
Anti-lock brake system ........... 327
Armrest ..................................... 600
Audio input ............................... 462
Audio system
A/V input port ........................ 516
Antenna................................. 418
Audio input ............................ 462
Audio visual input .................. 516
AUX port ............................... 462
CD player/changer ................ 422
DVD player.... 499, 509, 513, 514
iPod ....................................... 442
MP3/WMA disc ..................... 431
Optimal use ........................... 457
Portable music player ........... 462
Radio..................................... 412
Rear seat entertainment system ......... 488
Steering wheel audio
switch.................................. 463
Type ...................................... 407
USB memory......................... 449
Audio visual input.................... 462
Automatic light control system .................................... 266
Automatic transaxle Automatic transaxle .............. 236
If the shift lever cannot be shifted from P ..................... 764
S mode.................................. 238
Auxiliary box ........................... 585
AUX port ................................... 462
A/V input port ........................... 462A
Page 853 of 860

853
Alphabetical index
SIENNA_U (OM45477U)
Towing
Dinghy towing ....................... 376
Trailer towing ........................ 356
Traction control ....................... 327
TRAC ........................................ 327
Trailer towing........................... 356
Trip information display ......... 252
Trip meter................................. 244
Turn signal lights Replacing light bulbs ............ 709
Switch ................................... 241
Wattage ................................ 796
Valet key..................................... 32
Vanity lights Vanity lights .......................... 591
Wattage ................................ 796
Vanity mirrors .......................... 591
VDIM ......................................... 328
Vehicle control and operation data recording ....... 26
Vehicle identification number................................... 785
Vehicle stability control .......... 327
VSC ........................................... 327 Warning buzzers
Brake system ........................729
Open door .............................733
Seat belt reminder .................733
Warning lights Active Torque Control 4WD
system ................................736
Anti-lock brake system ..........731
Automatic High Beam indicator light.......................732
Brake assist system ..............731
Brake system ........................729
Charging system .... ...............730
Cruise control indicator light .....................................732
Electric power steering system ................................731
Engine oil pressure ...............730
Low fuel level ........................733
Low washer fluid ...................734
Maintenance required reminder light ......................735
Malfunction indicator lamp ....730
Master warning light ..............733
Open door .............................733
Pre-collision system ..............731
Pretensioners ........................730
Radar cruise control indicator light.......................732
Seat belt reminder light .........733
Slip indicator light ..................731
SRS airbags ..........................730
Third seat warning light ......... 735
Tire pressure warning light ....734
Warning messages ..................744
Washer Checking ...............................671
Preparing and checking
before winter .......................352
Switch............................282, 290
Washing and waxing ...............630
V
W
Page 858 of 860
858 What to do if...
SIENNA_U (OM45477U)
■Warning lights
P. 733
or
P. 7 2 9P. 733
P. 7 3 0P. 733
P. 7 3 0P. 735
P. 731
or
P. 7 3 0P. 733
P. 7 3 0P. 733
P. 736
or
P. 7 3 1P. 731
P. 7 3 1P. 732
P. 7 3 5P. 732
P. 7 3 4P. 732
P. 7 3 4
*: 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 light
Electric power steering
system warning light
Active torque control
4WD system warning
light