Page 127 of 876
127
1-3. Adjustable components (s
eats, mirrors, steering wheel)
1
Before driving
SIENNA_OM_OM45472U_(U)
■Installing the head restraints (front, second and third center seats)
CAUTION
■Head restraint precautions
Observe the following precautions regarding the head restraints. Failure to
do so may result in death or serious injury.
● Use the head restraints designed for each respective seat.
● Adjust the head restraints to the correct position at all times.
● After adjusting the head restraints, push down on them and make sure
they are locked in position.
● Do not drive with the head restraints removed.
Align the head restraint with the installa-
tion holes and push it down to the lock
position.
Press and hold the lock release button
when lowering the head restraint.
Page 188 of 876

188 1-7. Safety information
SIENNA_OM_OM45472U_(U)
CAUTION
■Front passenger occupant cl assification system precautions
● Do not recline the front passenger seatback so far that it touches a rear
seat. This may cause the “AIR BAG OFF” indicator light to be illuminated,
which indicates that the SRS airbags for the passenger will not deploy in
the event of a severe accident. If the seatback touches the rear seat,
return the seatback to a position where it does not touch the rear seat.
Keep the front passenger seatback as upright as possible when the vehi-
cle is moving. Reclining the seatback excessively may lessen the effec-
tiveness of the seat belt system.
● If an adult sits in the front passenger seat, the “AIR BAG ON” indicator
light is illuminated. If the “AIR BAG OFF” indicator is illuminated, ask the
passenger to sit up straight, well back in the seat, feet on the floor, and
with the seat belt worn correctly. If the “AIR BAG OFF” indicator still
remains illuminated, either ask the passenger to move to the rear seat, or
if that is not possible, move the front passenger seat fully rearward.
● When it is unavoidable to install the forward-facing child restraint system
on the front passenger seat, install the child restraint system on the front
passenger seat in the proper order. ( P.194)
● Do not modify or remove the front seats.
● Do not kick the front passenger seat or subject it to severe impact. Other-
wise, the SRS warning light may come on to indicate a malfunction of the
front passenger occupant classification system. In this case, contact your
Toyota dealer immediately.
● Child restraint systems installed on the rear seat should not contact the
front seatbacks.
● Do not use a seat accessory, such as a cushion or seat cover, that covers
the seat cushion surface.
● Do not modify or replace the upholstery of the front seat.
Page 362 of 876
362 2-5. Driving information
SIENNA_OM_OM45472U_(U)
Seating configuration variationCargo capacity
Weight of the removed second
seat
If removing the second seats, it is possible to load extra cargo equal
to the weight of the removed seats.
(Cargo capacity) = (Total load capacity) - (Total weight of occupants)
+ (Weight of the removed second seats)
Second seats weight: 7-passenger models
Tip-up seat, fabric: 45 lb. (21 kg)
Tip-up seat, leather: 47 lb. (22 kg)
Ottoman seat: 83 lb. (37 kg)
8-passenger models
Right side, fabric: 45 lb. (21 kg)
Right side, leather: 47 lb. (22 kg)
Left side, fabric: 80 lb. (36 kg)
Left side, leather: 83 lb. (37 kg)
Page 653 of 876

653
4-1. Maintenance and care
4
Maintenance and care
SIENNA_OM_OM45472U_(U)
NOTICE
■
Cleaning detergents
● Do not use the following types of detergent, as they may discolor the vehi-
cle interior or cause streaks or damage to painted surfaces:
• Non-seat portions: Organic substances such as benzene or gasoline,
alkaline or acidic solutions, dye, and bleach
• Seats: Alkaline or acidic solutions, such as thinner, benzene, and alcohol
● Do not use polish wax or polish cleaner. The instrument panel’s or other
interior part’s painted surface may be damaged.
■ Preventing damage to leather surfaces
Observe the following precautions to avoid damage to and deterioration o\
f
leather surfaces.
● Remove any dust or dirt from leather surfaces immediately.
● Do not expose the vehicle to direct sunlight for extended periods of time.
Park the vehicle in the shade, especially during summer.
● Do not place items made of vinyl, plastic, or containing wax on the uphol-
stery, as they may stick to the leather surface if the vehicle interior heats
up significantly.
Page 769 of 876
5
When trouble arises
769
5-2. Steps to take in an emergency
SIENNA_OM_OM45472U_(U)
Installing the spare tire
Remove any dirt or foreign mat-
ter from the wheel contact sur-
face.
If foreign matter is on the wheel
contact surface, the wheel nuts
may loosen while the vehicle is
in motion, causing the tire to
come off.
Install the tire and loosely tighten
each wheel nut by hand by
approximately the same amount.
Tighten the wheel nuts until the
tapered portion comes into
loose contact with the disc
wheel seat.
Lower the vehicle.
STEP1
Tapered portion
Disc wheel
seatSTEP2
STEP3
Page 861 of 876

861
Alphabetical index
SIENNA_OM_OM45472U_(U)
Back-up lights
Replacing light bulbs ............ 725
Wattage ................................ 812
Back door Back door ............................... 82
Wireless remote control.......... 53
Battery Checking .............................. 683
If the vehicle has discharged battery ............. 786
Preparing and checking before winter ...................... 367
Blind Spot Monitor .................. 346
Bluetooth
® audio ..................... 484
Bluetooth® phone .................... 543
Bottle holder ............................ 596
Brake Fluid...................................... 681
Parking brake ....................... 242
Brake assist ............................. 329
Break-in tips ............................ 214
Brightness control Instrument light control ......... 245
BSM .......................................... 346
Care Exterior ................................. 646
Interior .................................. 651
Seat belts ............................. 652
Cargo capacity ........................ 358
Cargo hooks ............................ 622
CD changer .............................. 436
CD player ................................. 436
Chains ...................................... 367 Child restraint system
Booster seats, definition ........189
Booster seats, installation .....194
Convertible seats, definition .............................189
Convertible seats,
installation ...........................194
Front passenger occupant classification system ...........183
Infant seats, definition ...........189
Infant seats, installation.........194
Installing CRS with LATCH anchors ..........197, 199
Installing CRS with seat belts ............................201
Installing CRS with top tether strap............205, 206
Child safety
Airbag precautions ................177
Back door precautions ............88
Battery precautions .......685, 790
Child restraint system............189
Child-protectors .......................71
How your child should wear the seat belt ........................132
Installing child restraints ........194
Moon roof precautions ..........154
Power window lock switch.....144
Power window precautions ...147
Removed key battery precautions .........................711
Seat belt extender precautions .........................136
Seat belt precautions ............133
Seat heater precautions ........613
Child-protectors .........................71
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