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SIENNA_OM_OM08007U_(U)
7-3. Do-it-yourself maintenance
7
Maintenance and care
Wheels
When replacing wheels, care should be taken to ensure that they are
equivalent to those removed in load capacity, diameter, rim width and
inset
*.
Replacement wheels are available at your Toyota dealer.
*: Conventionally referred to as “offset”.
Toyota does not recommend using the following:
● Wheels of different sizes or types
● Used wheels
● Bent wheels that have been straightened
● Use only Toyota wheel nuts and wrenches designed for use with
your aluminum wheels.
● When rotating, repairing or changi ng your tires, check that the
wheel nuts are still tight after driving 1000 miles (1600 km).
● Be careful not to damage the aluminum wheels when using tire
chains.
● Use only Toyota genuine balance weights or equivalent and a plas-
tic or rubber hammer when balancing your wheels.
■When replacing wheels
The wheels of your vehicle are equipped with tire pressure warning
valves and transmitters that allow the tire pressure warning system to
provide advanced warning in the event of a loss in tire inflation pressure.
Whenever wheels are replaced, tire pressure warning valves and trans-
mitters must be installed. ( P. 497)
If a wheel is bent, cracked or heavily corroded, it should be
replaced.
Otherwise, the tire may separate from the wheel or cause a loss
of handling control.
Wheel selection
Aluminum wheel precautions
539
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8
When trouble arises
8-2. Steps to take in an emergency
If your vehicle needs to be towed
The following may indicate a problem with your transaxle. Contact
your Toyota dealer or commercial towing service before towing.
●The engine is running but the vehicle does not move.
● The vehicle makes an abnormal sound.
Do not tow with a sling-type truck
to prevent body damage.
If towing is necessary, we re commend having your vehicle
towed by your Toyota dealer or commercial towing service,
using a wheel-lift type tr uck or flat bed truck.
Use a safety chain system for all towing, and abide by all state/
provincial and local laws.
2WD models: If towing your vehicle with a wheel-lift type truck
from the front, the vehicle’s rear wheels and axles must be in
good conditions. ( P. 540, 541)
If they are damaged, use a to wing dolly or flat bed truck.
AWD models: If towing your vehicl e with a wheel-lift type truck,
use a towing dolly. ( P. 540, 541)
Situations when it is necessary to contact dealers before towing
Towing with a sling-type truck
5408-2. Steps to take in an emergency
SIENNA_OM_OM08007U_(U)
If you use chains or cables to tie
down your vehicle, the angles
shaded in black must be 45.
Do not overly tighten the tie
downs or the vehicle may be dam-
aged.
Towing with a wheel-lift type truck
From the front (2WD models)From the front (AWD models)
Release the parking brake. Use a towing dolly under the rear
wheels.
From the rear
Use a towing dolly under the front
wheels.
Using a flatbed truck
5748-2. Steps to take in an emergency
SIENNA_OM_OM08007U_(U)
WARNING
■Using the tire jack
Observe the following precautions.
Improper use of the tire jack may cause the vehicle to suddenly fall off
the jack, leading to death or serious injury.
●Do not use the tire jack for any purpose other than replacing tires or
installing and removing tire chains.
●Only use the tire jack that comes with this vehicle for replacing a flat
tire. Do not use it on other vehicles , and do not use other tire jacks for
replacing tires on this vehicle.
●Put the jack properly in its jack point.
●Do not put any part of your body und er the vehicle while it is supported
by the jack.
●Do not start or run the engine while your vehicle is supported by the
jack.
●Do not raise the vehicle while someone is inside.
●When raising the vehicle, do not put an object on or under the jack.
●Do not raise the vehicle to a height greater than that required to
replace the tire.
●Use a jack stand if it is necessary to get under the vehicle.
●When lowering the vehicle, make su re that there is no-one near the
vehicle. If there are people nearby, warn them vocally before lowering.
5838-2. Steps to take in an emergency
SIENNA_OM_OM08007U_(U)
8
When trouble arises
■The compact spare tire
●The compact spare tire is identified by the label “TEMPORARY USE
ONLY” on the tire sidewall.
Use the compact spare tire temporarily, and only in an emergency.
●Make sure to check the tire inflatio n pressure of the compact spare tire.
( P. 607)
■After completing the tire change
The tire pressure warning system must be reset. ( P. 497)
■When using the compact spare tire
As the compact spare tire is not equipped with a tire pressure warning
valve and transmitter, lo w inflation pressure of the spare tire will not be
indicated by the tire pressure warning system. Also, if you replace the
compact spare tire after the tire pressure warning light comes on, the light
remains on.
■When the compact spare tire is equipped
The vehicle becomes lower when driving with the compact spare tire
compared to when driving with standard tires
■If you have a flat front tire on a road covered with snow or ice
Install the compact spare tire on one of the rear wheels of the vehicle.
Perform the following steps and fit tire chains to the front tires:
Replace a rear tire with the compact spare tire.
Replace the flat front tire with the tire removed from the rear of the vehi-
cle.
Fit tire chains to the front tires.
1
2
3
5858-2. Steps to take in an emergency
SIENNA_OM_OM08007U_(U)
8
When trouble arises
NOTICE
■When loosening or tightening the spare tire clamp bolt
Do not use an impact wrench. Use the adapter socket and jack handle.
■Be careful when driving over bumps with the compact spare tire
installed on the vehicle
The vehicle becomes lower when driving with the compact spare tire
compared to when driving with standard tires. Be careful when driving
over uneven road surfaces.
■Driving with tire chains and the compact spare tire
Do not fit tire chains to the compact spare tire.
Tire chains may damage the vehicle body and adversely affect driving
performance.
■When replacing the tires
When removing or fitting the wheels, tires or the tire pressure warning
valve and transmitter, contact your Toyota dealer as the tire pressure
warning valve and transmitter may be damaged if not handled correctly.
■To avoid damage to the tire pressure warning valves and transmit-
ters
When a tire is repaired with liquid sealants, the tire pressure warning
valve and transmitter may not operate properly. If a liquid sealant is
used, contact your Toyota dealer or other qualified service shop as soon
as possible. Make sure to replace the tire pressure warning valve and
transmitter when replacing the tire. ( P. 497)
■After taking out or stowing the spare tire
Make sure to secure the tire carrier by tightening the clamp bolt to pre-
vent the holding bracket from hitting the under body of the vehicle dur-
ing driving.
■Using the tire carrier
●As the tire carrier is designed for use with the compact spare tire, it
cannot be used with standard tires.
●If the spare tire is flat, do not use t he tire carrier, as the tire may not be
held securely.
657Alphabetical index
SIENNA_OM_OM08007U_(U)
CareAluminum wheels.................. 469
Exterior ................................. 468
Interior................................... 471
Seat belts .............................. 472
Cargo capacity ......................... 209
Cargo hooks............................. 441
CD player
*................................ 342
Chains....................................... 318
Child restraint system ............... 56 Booster seats, definition ......... 57
Booster seats, installation ....... 68
Convertible seats, definition ............................... 57
Convertible seats, installation ............................ 66
Front passenger occupant
classification syst em............. 50
Infant seats, definition ............. 56
Infant seats, installation .......... 60
Installing CRS with LATCH anchors .............. 62, 64
Installing CRS with
seat belts .............................. 66
Installing CRS with top tether strap ............... 69, 70 Child safety ................................ 55
Airbag precautions.................. 39
Back door precautions .......... 139
Battery precautions........ 494,593
Child restraint system ............. 56
How your child should wear
the seat belt.......................... 32
Installing child restraints ......... 60
Moon roof precautions .......... 191
Power window lock switch .... 184
Power window precautions ... 186
Removed key battery
precautions......................... 513
Seat belt extender
precautions........................... 35
Seat belt precautions .............. 34
Seat heater precautions ....... 424
Sliding door child-protectors................... 125
Child-protectors ...................... 125
Cleaning
Aluminum wheels ................. 469
Exterior ................................. 468
Interior .................................. 471
Seat belts.............................. 472
Clock......................................... 444
Compass .................................. 457
Condenser................................ 491
Console box ............................. 432
Conversation mirror ................ 444
Cooling system........................ 489 Engine overheating............... 594
Cruise control
Cruise control ...................... 262
Dynamic radar cruise control ................................ 266
Cup holders ............................. 434
Curtain shield airbags............... 36
Customizable features ............ 623
C
*: Refer to “NAVIGATION AND MULTIMEDIA
SYSTEM OWNER’S MANUAL”
667Alphabetical index
SIENNA_OM_OM08007U_(U)
Tachometer ................................ 88
Tail lightsLight switch ........................... 242
Replacing light bulbs ................... 528, 530, 531
Wattage ................................ 608
Talk switch
*............................. 405
Telephone switch
*.................. 384
Theft deterrent system Alarm ...................................... 77
Engine immobilizer system ..... 75
Tire inflation pressure ............. 504 Maintenance data ................. 606
Warning light ......................... 547
Tire pressure warning system
Function ................................ 497
Initializing .............................. 497
Installing tire pressure warning valves and
transmitters......................... 497
Registering ID codes ............ 498
Tire pressure warning reset switch ........................ 497
Warning light ......................... 547
Warning message ................. 558 Tires
Chains .................................. 318
Checking............................... 496
Glossary ............................... 618
If you have a flat tire ..... 570, 572
Inflation pressure .................. 504
Information............................ 612
Replacing.............................. 572
Rotating tires ........................ 496
Size....................................... 606
Snow tires ............................. 317
Tire identification number ..... 614
Tire pressure warning system .......... ...................... 497
Uniform Tire Quality Grading .............................. 616
Warning light......................... 547
Tools ......................................... 575
Total load capacity .................. 600
Towing Dinghy towing ....................... 224
Emergency towing ................ 539
Trailer towing ........................ 210
Traction control ....................... 297
TRAC (Traction Control) Function ................................ 297
TRAC OFF switch................. 298
Trailer towing ........................... 210
Trip meter ................................... 88
Turn signal lights Replacing light bulbs........... 525, 526, 529, 531
Turn signal lever ................... 240
Wattage ................................ 608
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