Page 136 of 872

136 1-3. Adjustable components (seats, mirrors, steering wheel)
SIENNA_OM_OM45483U_(U)
CAUTION
■Seat belt damage and wear
●Do not damage the seat belts by allowing the belt, plate, or buckle to be
jammed in the door.
● Inspect the seat belt system periodically. Check for cuts, fraying, and loose
parts. Do not use a damaged seat belt until it is replaced. Damaged seat
belts cannot protect an occupant from death or serious injury.
● Ensure that the belt and tab are locked and the belt is not twisted.
If the seat belt does not function correctly, immediately contact your Toyota
dealer.
● Replace the seat assembly, including the belts, if your vehicle has been
involved in a serious accident, even if there is no obvious damage.
● Do not attempt to install, remove, modify, disassemble or dispose of the
seat belts. Have any necessary repairs carried out by your Toyota dealer.
Inappropriate handling of the pretensioner may prevent it from operating
properly resulting in death or serious injury.
Page 190 of 872

190 1-7. Safety information
SIENNA_OM_OM45483U_(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 front passenger will not acti-
vate 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
vehicle is moving. Reclining the seatback excessively may lessen the
effectiveness 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.196)
● 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 and seat cover, that cov-
ers the seat cushion surface.
● Do not modify or replace the upholstery of the front seat.
Page 364 of 872
364 2-5. Driving information
SIENNA_OM_OM45483U_(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 655 of 872

655
4-1. Maintenance and care
4
Maintenance and care
SIENNA_OM_OM45483U_(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 767 of 872
5
When trouble arises
767
5-2. Steps to take in an emergency
SIENNA_OM_OM45483U_(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 857 of 872

857
Alphabetical index
SIENNA_OM_OM45483U_(U)
Back-up lights
Replacing light bulbs ............ 724
Wattage ................................ 809
Back door Back door ............................... 82
Wireless remote control.......... 53
Battery Checking .............................. 683
If the vehicle has discharged battery ............. 784
Preparing and checking before winter ...................... 369
Blind Spot Monitor .................. 348
Bluetooth
® audio ..................... 486
Bluetooth® phone .................... 545
Bottle holder ............................ 598
Brake Fluid...................................... 681
Parking brake ....................... 244
Brake assist ............................. 331
Break-in tips ............................ 216
Brightness control Instrument light control ......... 247
BSM .......................................... 348
Care Exterior ................................. 648
Interior .................................. 653
Seat belts ............................. 654
Cargo capacity ........................ 360
Cargo hooks ............................ 624
CD changer .............................. 438
CD player ................................. 438
Chains ...................................... 369 Child restraint system
Booster seats, definition ........191
Booster seats, installation .....196
Convertible seats, definition .............................191
Convertible seats,
installation ...........................196
Front passenger occupant classification system ........... 185
Infant seats, definition ...........191
Infant seats, installation.........196
Installing CRS with LATCH anchors ..........199, 201
Installing CRS with seat belts ............................203
Installing CRS with top tether strap............207, 208
Child safety
Airbag precautions ................179
Back door precautions ............88
Battery precautions .......685, 788
Child restraint system............191
Child-protectors .......................71
How your child should wear the seat belt ........................133
Installing child restraints ........196
Moon roof precautions ..........155
Power window lock switch.....145
Power window precautions ...148
Removed key battery precautions .........................710
Seat belt extender precautions .........................137
Seat belt precautions ............134
Seat heater precautions ........615
Child-protectors .........................71
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