2015 TOYOTA SIENNA tire pressure reset

18Pictorial index
SIENNA_OM_01999-08001_(U)
■Switches
Power window switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 183
Window lock switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 183
Driving position memory switches
*1. . . . . . . . . . . . . . . . . . P. 168
Outside rear view mirror switches . . . . . . . . . . . . . . . . . . . . P. 180
Door lock switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 114
Inside lock buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 114, 122
Power quarter window switch
*1. . . . . . . . . . . . . . . . . . . . . . P. 186
VSC OFF switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 292
Intuitive parking assist switch
*1 . . . . . . . . . . . . . . . . . . . . . P. 273
BSM (Blind Spot Monitor) main switch
*1 . . . . . . . . . . . . . . P. 303
Heated steering wheel switch
*1. . . . . . . . . . . . . . . . . . . . . . P. 416
Manual headlight leveling dial
*1 . . . . . . . . . . . . . . . . . . . . . P. 239
Power sliding d oor main switch
*1. . . . . . . . . . . . . . . . . . . . P. 124
Power back door main switch
*1. . . . . . . . . . . . . . . . . . . . . . P. 135
Seat heater dials
*1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 416
Tire pressure warning reset switch . . . . . . . . . . . . . . . . . P. 489
Pre-collision braking off switch*1 . . . . . . . . . . . . . . . . . . . . P. 297
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SIENNA_OM_01999-08001_(U)
7-3. Do-it-yourself maintenance
Press and hold the tire pres-
sure warning reset switch
until the tire pressure warn-
ing light blinks slowly 3 times.
Vehicles without a smart key system: Wait for a few minutes with
the engine switch in the “ON” position and then turn the engine
switch to the “ACC” or “LOCK” position.
Vehicles with a smart key system: Wait for a few minutes with the
engine switch in IGNITION ON mode and then turn the engine
switch off.
◆Registering ID codes
The tire pressure warning valve and transmitter is equipped with a
unique ID code. When replacing a tire pressure warning valve and
transmitter, it is necessary to register the ID code. Have the ID code
registered by your Toyota dealer.
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SIENNA_OM_01999-08001_(U)
4937-3. Do-it-yourself maintenance
7
Maintenance and care
■Situations in which the tire pressure warning system may not oper-
ate properly
The tire pressure warning system will be disabled in the following condi-
tions:
(When the condition becomes normal, the system will work properly.)
●If tires not equipped with tire pressure warning valves and transmitters
are used.
●If the ID code on the tire pressure warning valves and transmitters is not
registered in the tire pressure warning computer.
●If the tire inflation pressure is 73 psi (500 kPa, 5.1 kgf/cm2 or bar) or
higher.
The tire pressure warning system may be disabled in the following condi-
tions:
(When the condition be comes normal, the system will work properly.)
●If electronic devices or facilities using similar radio wave frequencies are
nearby.
●If a radio set at similar frequencies is in use in the vehicle.
●If a window tint that affects the radio wave signals is installed.
●If there is a lot of snow or ice on th e vehicle, in particular around the
wheels or wheel housings.
●If non-genuine Toyota wheels are used. (Even if you use Toyota wheels,
the tire pressure warning system may not work properly with some types
of tires.)
●If tire chains are used.
■Initializing the tire pressure warning system
Initialize the system with the tire infl ation pressure adjusted to the speci-
fied level.
■If you press the tire pressure warning reset switch accidentally
If initialization is perform ed, adjust the tire inflation pressure to the speci-
fied level and initialize the tire pressure warning system again.
■When the initialization of the tire pressure warning system has failed
Initialization can be completed in a few minutes. However, in the following
cases, the settings ha s not been recorded and the system will not operate
properly. If repeated attempts to record tire inflation pressure settings are
unsuccessful, have the vehicle in spected by your Toyota dealer.
●When operating the tire pressure wa rning reset switch, the tire pressure
warning light does not blink 3 times.
●After driving for a certain period of time since the initialization has been
completed, the warning light comes on after blinking for 1 minute.

494
SIENNA_OM_01999-08001_(U)
7-3. Do-it-yourself maintenance
■Tire pressure warning system certification
FCC ID:GQ4-45T
FCC ID:GQ4-37R
For vehicles sold in the U.S.A.
NOTE:
This device complies with part 15 of the FCC Rules. Operation is subject
to the following two conditions: (1) This device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
FCC WARNING:
Changes or modifications not ex pressly approved by the party
responsible for compliance could void the user’s authority to operate the
equipment.
For vehicles sold in Canada
NOTE:
Operation is subject to the following two conditions: (1) this device may
not cause interference, and (2) this device must accept any interference,
including interference that may cause undesired operation of the device.
WARNING
■When inspecting or replacing tires
Observe the following precautions to prevent accidents. Failure to do so
may cause damage to parts of the drive train, as well as dangerous han-
dling characteristics, which may lead to an accident resulting in death or
serious injury.
●Do not mix tires of different ma kes, models or tread patterns.
Also, do not mix tires of remarkably different treadwear.
●Do not use tire sizes other than those recommended by Toyota.
●Do not mix differently constructed ti res (radial, bias-belted or bias-ply
tires).
●Do not mix summer, all season and snow tires.
●Do not use tires that have b een used on another vehicle.
Do not use tires if you do not know how they were used previously.
●Vehicles with a compact spare tire: Do not tow if your vehicle has a
compact spare tire installed.
■When initializing the tire pressure warning system
Do not operate the tire pressure warning reset switch without first
adjusting the tire inflation pressure to the specified level. Otherwise, the
tire pressure warning light may not come on even if the tire inflation
pressure is low, or it may come on when the tire inflation pressure is
actually normal.

5418-2. Steps to take in an emergency
SIENNA_OM_01999-08001_(U)
8
When trouble arises
■SRS warning light
This warning light system monitors the airbag sensor assembly, front impact
sensors, side impact sensors (front door), side impact sensors (rear), driver’s
seat position sensor, driver’s seat belt buckle switch, front passenger occu-
pant classification system (ECU and sensors), “AIR BAG ON” indicator light,
“AIR BAG OFF” indicator light, front passenger’s seat belt buckle switch, seat
belt assemblies, airbags, interconnecting wiring and power sources. ( P. 36)
■ Front passenger detection sensor, seat belt reminder and warning
buzzer
● If luggage is placed on the front passenger seat, the front passenger detec-
tion sensor may cause the warning light to flash and the warning buzzer to
sound even if a passenger is not sitting in the seat.
● If a cushion is placed on the seat, the sensor may not detect a passenger,
and the warning light may not operate properly.
■ If the malfunction indicator la mp comes on while driving
First check the following:
● Is the fuel tank empty?
If it is, fill the fuel tank immediately.
● Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after several driving trips.
If the light does not go off even after several trips, contact your Toyota dealer
as soon as possible.
■ Electric power steering system warning light (warning buzzer)
When the battery charge becomes insufficient or the voltage temporarily
drops, the electric power steering system warning light may come on and the
warning buzzer may sound.
■
When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level. Push-
ing the tire pressure warning reset switch will not turn off the tire pressure
warning light.
■The tire pressure warning light may come on due to natural causes
The tire pressure warning light may come on due to natural causes such
as natural air leaks and tire inflation pressure changes caused by temper-
ature. In this case, adjusting the ti re inflation pressure will turn off the
warning light (after a few minutes).

5758-2. Steps to take in an emergency
SIENNA_OM_01999-08001_(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. 601)
■After completing the tire change
The tire pressure warning system must be reset. ( P. 489)
■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.
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660Alphabetical index
SIENNA_OM_01999-08001_(U)
Smart key systemAntenna location ................... 142
Entry function ........ 110, 121, 132
Starting the engine................ 226
Warning message ................. 558
Snow tires ................................ 311
Spare tire Inflation pressure .................. 601
Storage location .................... 565
Spark plug ................................ 598
Specifications .......................... 594
Speedometer .............................. 88
Steering wheel Adjustment ............................ 176
Audio switches
*.................... 320
Column lock release ..... 224, 229
“DISP” switch .......................... 90
Heated steering wheel .......... 416
Meter control switches ............ 94
Talk switch
*.......................... 400
Telephone switches
*............ 379
Stop lights Replacing light bulbs..... 520, 523
Wattage ................................ 602
Storage feature ........................ 422
Storage precautions ........ 205, 422
Stuck If your vehicle becomes stuck ................................... 590
Sunshades
Rear door .............................. 442
Roof ...................................... 190
Sun visors ................................ 435
Switch
Audio remote control switches
*........................... 320
BSM (Blind Spot Monitor) switch ................................. 303
Cruise control switch............. 257 “DISP” switch .......................... 90
Door lock switch ................... 114
Driving position memory
switches ............................. 168
Emergency flashers
switch ................................. 528
Engine switch ............... 223, 226
Fog light switch ..................... 247
Garage door opener switches ............................. 444
Heated steering wheel .......... 416
Ignition switch ............... 223, 226
Intuitive parking assist switch ................................. 273
Light switches ....................... 237
Moon roof switches............... 188
Outside rear view mirror switches ............................. 180
Pre-collision braking off switch ................................. 297
Power back door................... 133
Power door lock switch ......... 114
Power window switch ... 183, 186
Rear window wiper and washer switch..................... 252
Rear window and outside rear view mirror
defoggers switch ................ 408
Seat heater switches ............ 416
“SOS” button......................... 453
Talk switch
*.......................... 400
Telephone switches
*............ 379
Tire pressure warning
reset switch ........................ 489
TRAC OFF switch................. 292
Vehicle-to-vehicle distance button ................................. 261
Window lock switch .............. 183
Wiper and washer switch ......................... 248, 252

661Alphabetical index
SIENNA_OM_01999-08001_(U)
Tachometer ................................ 88
Tail lightsLight switch ........................... 237
Replacing light bulbs ................... 520, 522, 523
Wattage ................................ 602
Talk switch
*............................. 400
Telephone switch
*.................. 379
Theft deterrent system Alarm ...................................... 77
Engine immobilizer system ..... 75
Theft prevention labels ............. 80
Tire inflation pressure ............. 496 Maintenance data ................. 600
Warning light ......................... 539
Tire pressure warning system
Function ................................ 489
Initializing .............................. 489
Installing tire pressure warning valves and
transmitters......................... 489
Registering ID codes ............ 490
Tire pressure warning reset switch ........................ 489
Warning light ......................... 539
Warning message ................. 550 Tires
Chains .................................. 312
Checking............................... 488
Glossary ............................... 612
If you have a flat tire ..... 562, 564
Inflation pressure .................. 496
Information............................ 606
Replacing.............................. 564
Rotating tires ........................ 488
Size....................................... 600
Snow tires ............................. 311
Tire identification number ..... 608
Tire pressure warning system .......... ...................... 489
Uniform Tire Quality Grading .............................. 610
Warning light......................... 539
Tools ......................................... 567
Total load capacity .................. 594
Towing Dinghy towing ....................... 222
Emergency towing ................ 531
Trailer towing ........................ 208
Traction control ....................... 291
TRAC (Traction Control) Function ................................ 291
TRAC OFF switch................. 292
Trailer towing ........................... 208
Trip meter ................................... 88
Turn signal lights Replacing light bulbs........... 517, 521, 518, 523
Turn signal lever ................... 235
Wattage ................................ 602
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