2012 TOYOTA SIENNA engine

TABLE OF CONTENTSIndex
2
SIENNA_U (OM45477U)
1-1. Key informationKeys ..................................... 32
1-2. Opening, closing and locking
the doors
Smart key system................. 36
Wireless remote control ....... 53
Front doors ........................... 60
Sliding doors ........................ 67
Back door ............................. 82
1-3. Adjustable components (seats, mirrors, steering
wheel)
Front seats ........................... 95
Rear seats .......................... 100
Driving position memory ............................ 120
Head restraints ................... 125
Seat belts ........................... 128
Steering wheel ................... 137
Inside rear view mirror........ 138
Outside rear view mirrors .............................. 140 1-4. Openi
ng and closing the
win dows and moon roof
Power windows................... 144
Quarter windows................. 148
Moon roof ........................... 150
1-5. Refueling Opening the fuel tank cap ............................ 155
1-6. Theft deterrent system Engine immobilizer system .............................. 159
Alarm .................................. 162
Theft prevention labels (for U.S.A.) ....................... 165
1-7. Safety information Correct driving posture ....... 166
SRS airbags ....................... 168
Front passenger occupant classification system ......... 183
Child restraint systems ....... 189
Installing child restraints ..... 194
1Before driving

1
2
3
4
5
6
7
3
SIENNA_U (OM45477U)
2-1. Driving proceduresDriving the vehicle............... 212
Engine (ignition) switch (vehicles without smart
key system)....................... 226
Engine (ignition) switch (vehicles with smart key
system) ............................. 229
Automatic transaxle ............ 236
Turn signal lever ................. 241
Parking brake ...................... 242
Horn .................................... 243
2-2. Inst rument cluster and
information display
Gauges and meters ............ 244
Indicators and warning lights ................................. 247
Multi-information display ..... 252 2-3. Operating the li
ghts and
wipers
Headlight switch ................. 266
Automatic High Beam......... 273
Fog light switch................... 280
Windshield wipers and washer.............................. 282
Rear window wiper and washer.............................. 290
2-4. Using other driving systems Cruise control ..................... 293
Dynamic radar cruise control .............................. 298
Intuitive parking assist ........ 314
Rear view monitor system .............................. 321
Driving assist systems ........ 327
Hill-start assist control ........ 333
PCS (Pre-Collision System) ..... 336
2-5. Driving information Cargo and luggage ............. 343
Vehicle load limits............... 351
Winter driving tips ............... 352
Trailer towing (with towing package) ...... 356
Dinghy towing ..................... 376
2When driving

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)
18
Pictorial indexInstrument panel
B
Talk switch* P. 535
Audio remote control
switches
 P. 463
Telephone switch* P. 535
Distance switch P. 298
Engine (ignition) switch
(vehicles without a smart key system)
P. 226
Cruise control switch P. 293, 298

SIENNA_U (OM45477U)
19
C
Shift lock override button P. 764
Engine (ignition) switch
(vehicles with a smart key system)
P. 229
Shift lever P. 236
Emergency flasher switch P. 722
: If equipped
*: Refer to “NAVIGATION SYSTEM OWNER’S MANUAL”.

SIENNA_U (OM45477U)
24
For your information
Main Owner’s Manual
Please note that this manual applies to all models and all equipment, includ-
ing options. Therefore, you may find some explanations for equipment not
installed on your vehicle.
All specifications provided in this manual are current at the time of printing.
However, because of the Toyota policy of continual product improvement, we
reserve the right to make changes at any time without notice.
Depending on specifications, the vehicle shown in the illustrations may differ
from your vehicle in terms of equipment.
Noise from under vehicle after turning off the engine
Approximately five hours after the engine is turned off, you may hear sound
coming from under the vehicle for several minutes. This is the sound of a fuel
evaporation leakage check and, it does not indicate a malfunction.
Accessories, spare parts and modification of your Toyota
A wide variety of non-genuine spare parts and accessories for Toyota
vehicles are currently available on the market. You should know that Toyota
does not warrant these products and is not responsible for their
performance, repair, or replacement, or for any damage they may cause to,
or adverse effect they may have on, your Toyota vehicle.
This vehicle should not be modified with non-genuine Toyota products.
Modification with non-genuine Toyota products could affect its performance,
safety or durability, and may even violate governmental regulations. In
addition, damage or performance problems resulting from the modification
may not be covered under warranty.

SIENNA_U (OM45477U)
26
Vehicle control and operation data recording
Your Toyota is equipped with sophisticated computers that record certain
information about your vehicle’s operation, such as:
• Engine speed
• Accelerator status
• Brake status
• Vehicle speed
• Shift position
The data recorded varies according to the grade level and options the vehi-
cle is equipped with. The computers do not record conversations, sound or
pictures.
●Data usage
Toyota may use the data recorded in these computers to diagnose malfunc-
tions, conduct research and development, and improve quality.
Toyota will not disclose the recorded data to a third party except:
• With the consent of the vehicle owner or with the consent of the lessee if the vehicle is leased
• In response to an official request by the police, a court of law or a govern- ment agency
• For research purposes where the data is not tied to a specific vehicle or vehicle owner
● Usage of date collected through Safety Connect (U.S. mainland only)
If your Toyota has Safety Connect and if you have subscribed to those ser-
vices, please refer to the Safety Connect Telematics Subscription Service
Agreement for information on data collected and its usage.

SIENNA_U (OM45477U)
27
Event data recorder
Your vehicle has computers that monitor and control certain aspects of your
vehicle. These computers assist in driving and maintaining optimal vehicle
performance.
Besides storing data useful for troubleshooting, there is an event data
recorder (EDR) that records data in a crash or near crash event.
The SRS airbag sensor assembly contains the EDR. In a crash or near crash
event, this device may record the following information:
• Engine speed
• Whether the brake pedal was depressed or not
• Vehicle speed
• To what extent the accelerator pedal was depressed
• The transaxle shift position
• Whether the driver and front passenger wore seat belts or not
• Driver’s seat position
• SRS airbag deployment data
• SRS airbag system diagnostic data
• Front passenger’s occupant classification
The information above is intended to be used for the purpose of improving
vehicle safety performance. Unlike general data recorders, the EDR does
not record sound data such as conversation between passengers.