2012 TOYOTA SIENNA inflation pressure

TABLE OF CONTENTSIndex
6
SIENNA_U (OM45477U)
4-1. Maintenance and careCleaning and protecting the vehicle exterior ........... 630
Cleaning and protecting the vehicle interior ............ 635
4-2. Maintenance Maintenance requirements .................... 639
General maintenance ......... 642
Emission inspection and maintenance (I/M)
programs .......................... 646
4-3. Do-it-yourself maintenance Do-it-yourself service precautions ...................... 647
Hood................................... 651
Positioning a floor jack ....... 653
Engine compartment .......... 655
Tires ................................... 672
Tire inflation pressure......... 683
Wheels ............................... 687
Air conditioning filter ........... 690
Wireless remote control/electronic key
battery .............................. 693
Checking and replacing fuses ................................ 696
Light bulbs .......................... 709 5-1. Essential information
Emergency flashers ............ 722
If your vehicle needs to be towed ................................ 723
If you think something is wrong ................................ 727
Fuel pump shut off system .............................. 728
5-2. Steps to take in an emergency If a warning light turns on or a warning buzzer
sounds... ........................... 729
If a warning message is displayed .......................... 744
If you have a flat tire (vehicles with run-flat
tires) ................................. 745
If you have a flat tire (vehicles with standard
tires) ................................. 747
If the engine will not start .... 762
If the shift lever cannot be shifted from P ................... 764
If you lose your keys ........... 766
If the electronic key does not operate properly ......... 767
If the battery is discharged ........................ 770
If your vehicle overheats..... 775
If the vehicle becomes stuck ................................. 778
If your vehicle has to be stopped in an
emergency ........................ 780
4Maintenance and care5When trouble arises

SIENNA_U (OM45477U)
9
: If equipped
Rear window wiper P. 290
Fuel filler door P. 155
Sliding doors P. 67
Roof luggage carrier P. 343
Back door P. 82
License plate lights
P. 266
Tail lights P. 266
Tires
●Rotation
● Replacement
● Inflation pressure
● Information
P. 672
P. 747
P. 683
P. 801
Stop/tail and rear side marker
lights
P. 266
Rear turn signal lights P. 241
Rear window defogger P. 405
Front doors
P. 60

Maintenance and care4
629
SIENNA_U (OM45477U)
4-1. Maintenance and careCleaning and protecting the vehicle exterior ......... 630
Cleaning and protecting the vehicle interior .......... 635
4-2. Maintenance Maintenance requirements .................. 639
General maintenance....... 642
Emission inspection and maintenance (I/M)
programs ........................ 646
4-3. Do-it-yourself maintenance Do-it-yourself service precautions .................... 647
Hood ................................ 651
Positioning a floor jack ..... 653
Engine compartment ........ 655
Tires ................................. 672
Tire inflation pressure ...... 683
Wheels ............................. 687
Air conditioning filter......... 690
Wireless remote control/electronic key
battery ............................ 693
Checking and replacing fuses .............................. 696
Light bulbs........................ 709

645
4-2. Maintenance
4
Maintenance and care
SIENNA_U (OM45477U)
Vehicle exterior
ItemsCheck points
Doors • Do the doors operate smoothly?
Engine hood • Does the engine hood lock sys-
tem work properly?
Fluid leaks • There should not be any signs of
fluid leakage after the vehicle has
been parked.
Tires • Is the tire inflation pressure cor-
rect?
• The tires should not be dam- aged or excessively worn.
• Have the tires been rotated according to the maintenance
schedule?
• The wheel nuts should not be loose.
CAUTION
■ If the engine is running
Turn the engine off and ensure that there is adequate ventilation before per-
forming maintenance checks.

648 4-3. Do-it-yourself maintenance
SIENNA_U (OM45477U)
ItemsParts and tools
Engine oil levelP. 657)
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses (P. 696)• Fuse with same amperage rating
as original
Light bulbs (P. 709)
• Bulb with same number and watt-
age rating as original
• Phillips-head screwdriver
• Flathead screwdriver
• Wrench
Radiator and condenser (P. 664)
Tire inflation pressure ( P. 683)• Tire pressure gauge
• Compressed air source
Washer fluid (P. 671)
• Water or washer fluid containing
antifreeze (for winter use)
• Funnel (used only for adding water or washer fluid)

673
4-3. Do-it-yourself maintenance
4
Maintenance and care
SIENNA_U (OM45477U)
■
Tire rotation
Vehicles with a spare tire of a different wheel type from the
installed tires
Rotate the tires in the order
shown.
To equalize tire wear and
extend tire life, Toyota recom-
mends that tire rotation is
carried out at the same inter-
val as tire inspection.
■Tire pressure warning system
Your vehicle is equipped with a tire pressure warning system
that uses tire pressure warning valves and transmitters to detect
low tire inflation pressure before serious problems arise.
(  P. 733)
Vehicles with compact spare tire : The compact spare tire is not
equipped with the tire pressure warning valve and transmitters.
Front

674 4-3. Do-it-yourself maintenance
SIENNA_U (OM45477U)
Installing tire pressure warning valves and transmittersWhen replacing tires or wheels, tire pressure warning valves and
transmitters must also be installed.
When new tire pressure warning valves and transmitters are
installed, new ID codes must be regi stered in the tire pressure warn-
ing computer and the tire pressure warning system must be initial-
ized. Have tire pressure warning valve and transmitter ID codes
registered by your Toyota dealer. ( P. 676)
Initializing the tire pressure warning system
When the tire size is changed, the tire pressure warning system must
be initialized.
When the tire pressure warning syst em is initialized, the current tire
inflation pressure is set as the benchmark pressure.
■ How to initialize the tire pressure warning system
Park the vehicle in a safe pl ace and turn the engine switch
(vehicles without a smart key system) or the “ENGINE START
STOP” switch (vehicles with a smart key system) off.
Initialization cannot be performed while the vehicle is moving.
Adjust the tire inflation pressure to the specified cold tire infla-
tion pressure level. ( P. 794)
Make sure to adjust the tire pressure to the specified cold tire
inflation pressure level. The ti re pressure warning system will
operate based on this pressure level.
STEP1
STEP2

677
4-3. Do-it-yourself maintenance
4
Maintenance and care
SIENNA_U (OM45477U)
■Tire life
Any tire over 6 years old must be checked by a qualified technician even
if it has seldom or never been used or damage is not obvious.
■Routine tire inflation pressure checks
The tire pressure warning system doe
s not replace routine tire inflation
pressure checks. Make su re to check tire inflation pressure as part of
your routine of daily vehicle checks.
■Maximum load of tire
Check that the number given by divi ding the maximum load by 1.10 of
the replacement tire is greater than 1/2 of the Gross Axle Weight Ratings
(GAWR) of either the front axle or the rear axle, whichever is greater.
For the GAWR, see the Certification
Label. For the maximum load of the
tire, see the load limit at maximum cold
tire inflation pressure mentioned on the
sidewall of the tire. (P. 801)