Page 1 of 872
TABLE OF CONTENTS
SIENNA_OM_OM45483U_(U)
1
1Before drivingAdjusting and operating features such as door locks,
mirrors, and steering column
2When drivingDriving, stopping and safe-driving information
3Interior
featuresAir conditioning and audio systems, as well as other in-
terior features for a comfortable driving experience
4Maintenance
and careCleaning and protecting your vehicle, performing do-it-
yourself maintenance, and maintenance information
5When trouble
arisesWhat to do if the vehicle needs to be towed, gets a flat
tire, or is involved in an accident
6Vehicle
specificationsDetailed vehicle information
7For ownersReporting safety defects for U.S. owners, and seat belt
and SRS air bag instructions for Canadian owners
IndexAlphabetical listing of information contained in this
manual
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TABLE OF CONTENTSIndex
6
SIENNA_OM_OM45483U_(U)
4-1. Maintenance and careCleaning and protecting the vehicle exterior ........... 648
Cleaning and protecting the vehicle interior ............ 653
4-2. Maintenance Maintenance requirements .................... 657
General maintenance ......... 660
Emission inspection and maintenance (I/M)
programs .......................... 664
4-3. Do-it-yourself maintenance Do-it-yourself service precautions ...................... 665
Hood................................... 669
Positioning a floor jack ....... 671
Engine compartment .......... 673
Tires ................................... 688
Tire inflation pressure......... 699
Wheels ............................... 703
Air conditioning filter ........... 706
Wireless remote control/ electronic key battery ....... 708
Checking and replacing fuses ................................ 711
Light bulbs .......................... 724 5-1. Essential information
Emergency flashers ............ 736
If your vehicle needs to be towed ....................... 737
If you think something is wrong ............................ 741
Fuel pump shut off system .............................. 742
5-2. Steps to take in an emergency If a warning light turns on or a warning buzzer
sounds... .......................... 743
If a warning message is displayed .......................... 758
If you have a flat tire (vehicles with
run-flat tires) ..................... 759
If you have a flat tire (vehicles with
standard tires) .................. 761
If the engine will not start ............................ 776
If the shift lever cannot be shifted from P .............. 778
If you lose your keys ........... 780
If the electronic key does not operate properly ......... 781
If the battery is discharged ........................ 784
If your vehicle overheats..... 790
If the vehicle becomes stuck ................................. 793
If your vehicle has to be stopped in an
emergency........................ 795
4Maintenance and care5When trouble arises
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SIENNA_OM_OM45483U_(U)
9
: If equipped
Rear window wiper P. 294
Fuel filler door P. 156
Sliding doors P. 67
Roof luggage carrier P. 360
Back door P. 82
License plate lights
P. 270
Tail lights P. 270
Tires
●Rotation
● Replacement
● Inflation pressure
● Information
P. 688
P. 761
P. 699
P. 814
Stop/tail and rear side marker
lights
P. 270
Rear turn signal lights P. 243
Rear window defogger P. 421
Front doors
P. 60
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226 2-1. Driving procedures
SIENNA_OM_OM45483U_(U)
NOTICE
■When driving the vehicle
●Do not depress the accelerator and brake pedals at the same time during
driving, as this may restrain driving torque.
● Do not use the accelerator pedal or depress the accelerator and brake
pedals at the same time to hold the vehicle on a hill.
■ When parking the vehicle
Always shift the shift lever to P. Failure to do so may cause the vehicle to
move or the vehicle may accelerate suddenly if the accelerator pedal is acci-
dentally depressed.
■ Avoiding damage to vehicle parts
●Do not turn the steering wheel fully in either direction and hold it there for
an extended period of time.
Doing so may damage the power steering motor.
● When driving over bumps in the road, drive as slowly as possible to avoid
damaging the wheels, underside of the vehicle, etc.
■ If you get a flat tire while driving
A flat or damaged tire may cause the following situations. Hold the steering
wheel firmly and gradually depress the br ake pedal to slow down the vehicle.
● It may be difficult to control your vehicle.
● The vehicle may make abnormal sounds or vibrations.
● The vehicle may lean abnormally.
Information on what to do in case of a flat tire. ( P. 759, 761)
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281
2-3. Operating the lights and wipers
2
When driving
SIENNA_OM_OM45483U_(U)
●
In the situations below, the system may not be able to correctly detect the
surrounding brightness levels, and may flash or expose nearby pedestri-
ans to the high beam. Therefore, you should consider turning the high
beam on or off manually rather than relying on the Automatic High Beam
system.
• In bad weather (rain, snow, fog, sandstorms etc.)
• The windshield is obscured by fog, mist, ice, dirt etc.
• The windshield is cracked or damaged.
• The inside rear view mirror or ca mera sensor is deformed or dirty.
• Surrounding brightness levels are equal to those of headlights, tail lights or fog lights.
• Vehicles ahead have headlights that are either switched off, dirty, are changing color, or are not aimed properly.
• When driving through an area of intermittently changing brightness and darkness
• When frequently and repeatedly driving ascending/descending roads, or roads with rough, bumpy or uneven surfaces (such as stone-paved
roads, gravel tracks etc.)
• When frequently and repeatedly taking curves or driving on a winding road
• There is a highly reflective object ahead of the vehicle, such as a sign or a mirror.
• The vehicle’s headlights are damaged or dirty.
• The vehicle is lifting or tilting, due to a flat tire, a trailer being towed etc.
• The Automatic High Beam indicator is flashing.
• The high beam and low beam are repeatedly being switched between in an abnormal manner.
• The driver believes that the high beam may be causing problems or distress to other drivers or pedestrians nearby.
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336 2-4. Using other driving systems
SIENNA_OM_OM45483U_(U)
CAUTION
■When Enhanced VSC is activated
The slip indicator light flashes. Always drive carefully. Reckless driving may
cause an accident. Exercise particular care when the indicator light flashes.
■ When TRAC and VSC systems are turned off
Be especially careful and drive at a speed appropriate to the road condi-
tions. As these are the systems to ensure vehicle stability and driving force,
do not turn the TRAC and VSC systems off unless necessary.
■ Replacing tires
Make sure that all tires are of the specified size and of the same brand, tread
pattern and total load capacity. In addition, make sure that the tires are
inflated to the recommended tire pressure level.
The ABS and Enhanced VSC systems will not function correctly if different
tires are installed on the vehicle.
Contact your Toyota dealer for further information when replacing tires or
wheels.
■ Handling of tires and suspension
Using tires with any kind of problem or modifying the suspension will affect
the driving assist systems, and may cause the system to malfunction.
■ Active Torque Control 4WD system
●The AWD system of this vehicle is intended to ensure driving stability on
normal roads. It is not designed for use in demanding situations such as
rally driving.
● Take care when driving on slippery road surfaces.
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383
2-5. Driving information
2
When driving
SIENNA_OM_OM45483U_(U)
Trailer towing tips
Your vehicle will handle differently when towing a trailer. Help to avoid
an accident, death or serious injury, keep the following in mind when
towing:
● Speed limits for towing a trailer vary by state or province. Do not
exceed the posted towing speed limit.
● Toyota recommends that the vehicle-trailer speed limit is 65 mph
(104 km/h) on a flat, straight, dry road. Do not exceed this limit, the
posted towing speed limit or the speed limit for your trailer as set
forth in your trailer owner’s man ual, whichever is lowest. Instability
of the towing vehicle-trailer combin ation (trailer sway) increases as
speed increases. Exceeding speed limits may cause loss of con-
trol.
● Before starting out, check the trailer lights, tires and the vehicle-
trailer connections. Recheck after driving a short distance.
● Practice turning, stopping and reve rsing with the trailer attached in
an area away from traffic until you become accustomed to the feel
of the vehicle-trailer combination.
Page 387 of 872

387
2-5. Driving information
2
When driving
SIENNA_OM_OM45483U_(U)
■
Matching trailer ball height to trailer coupler height
■ Before towing
Check that the following conditions are met:
●Ensure that your vehicle’s tires are properly inflated. ( P. 807)
● Trailer tires are inflated according to the trailer manufacturer’s recom-
mendation.
● All trailer lights work as required by law.
● All lights work each time you connect them.
● The trailer ball is set at the proper height for the coupler on the trai\
ler.
● The trailer is level when it is hitched.
Do not drive if the trailer is not level, and check for improper tongue
weight, overloading, worn suspension, or other possible causes.
● The trailer cargo is securely loaded.
● The rear view mirrors conform to all applicable federal, state/provincial or
local regulations. If they do not, instal l rear view mirrors appropriate for
towing purposes.
No matter which class of tow hitch
applies, for a safe trailer hookup, the
trailer ball setup on must be proper height
for the coupler on the trailer.
Coupler
Trailer ball