
5
When trouble arises
781
5-2. Steps to take in an emergency
SIENNA_U (OM45477U)
CAUTION
■
If the engine has to be turned off while driving
● Power assist for the brakes and steering wheel will be lost, making the
brake pedal harder to depress and the steering wheel heavier to turn.
Decelerate as much as possible before turning off the engine.
● Vehicles without a smart key system: Never attempt to remove the key, as
doing so will lock the steering wheel.
Vehicles with a smart key sys-
tem: Stop the engine by press-
ing and holding the “ENGINE
START STOP” switch for 3
consecutive seconds or more.
Stop the vehicle in a safe place by the road.
Press and hold for 3 seconds or more
STEP4
STEP5

788 6-1. Specifications
SIENNA_U (OM45477U)
Lubrication system
*: The engine oil capacity is a reference quantity to be used when changing theengine oil. Warm up and turn off the engine, wait more than 5 minutes, and
check the oil level on the dipstick.
■ Engine oil selection
“Toyota Genuine Motor Oil” is used in your Toyota vehicle. Use
Toyota approved “Toyota Genuine Motor Oil” or equivalent to satisfy
the following grade and viscosity.
Oil grade: ILSAC multigrade engine oil
Recommended viscosity: SAE 0W-20
SAE 0W-20 is the best choice for
good fuel economy and good
starting in cold weather.
If SAE 0W-20 is not available,
SAE 5W-20 oil may be used.
However, it must be replaced
with SAE 0W-20 at the next oil
change.
Oil capacity
(Drain and refill
reference
*)
1AR-FE engine
2GR-FE engine Without filter: 4.2 qt. (4.0 L, 3.5 Imp.qt.)
With filter: 4.6 qt. (4.4 L, 3.9 Imp.qt.)
Without filter: 6.0 qt. (5.7 L, 5.0 Imp.qt.)
With filter: 6.4 qt. (6.1 L, 5.4 Imp.qt.)
Outside temperature

789
6-1. Specifications
6
Vehicle specifications
SIENNA_U (OM45477U)
Oil viscosity (0W-20 is explained here as an example):
• The 0W in 0W-20 indicates the characteristic of the oil which allows
cold startability. Oils with a lower value before the W allow for easier
starting of the engine in cold weather.
• The 20 in 0W-20 indicates the viscosity characteristic of the oil when the oil is at high temperature. An oil with a higher viscosity (one with a
higher value) may be better suited if the vehicle is operated at high
speeds, or under extreme load conditions.
How to read oil container label:
The ILSAC (International Lubric ant Standardization and Approval
Committee) Certification Mark is added to some oil containers to help
you select the oil you should use.

800 6-1. Specifications
SIENNA_U (OM45477U)
NOTICE
■Notice on fuel quality
● Do not use improper fuels. If improper fuels are used, the engine will be
damaged.
● Do not use leaded gasoline.
Leaded gasoline can cause damage to your vehicle’s catalytic converters
causing the emission control system to malfunction.
● Do not use gasohol other than that stated here.
Other gasohol may cause fuel system damage or vehicle performance
problems.
● Using unleaded gasoline with an octane number or rating lower than the
level previously stated will cause persistent heavy knocking.
At worst, this will lead to engine damage.
■ Fuel-related p oor driveability
If poor driveability is encountered after using a different type of fuel (poor hot
starting, vaporization, engine knocking, etc.), discontinue the use of that type
of fuel.
■ When refueling with gasohol
Take care not to spill gasohol. It can damage your vehicle’s paint.

847
Alphabetical index
SIENNA_U (OM45477U)
Electric power steering........... 327
Electronic key
If your electronic key
does not operate
properly .............................. 767
Emergency, in case of
If the back door opener is inoperative ........................... 86
If the electronic key
does not operate
properly .............................. 767
If the engine will not start...... 762
If the shift lever cannot be
shifted ................................ 764
If the vehicle has
discharged battery ............. 770
If the warning buzzer sounds... ........................... 729
If the warning light turns on .............................. 729
If the warning message is displayed ............................ 744
If you have a flat tire .... 745, 747
If you lose your keys............. 766
If you think something is wrong ................................. 727
If your vehicle becomes stuck................................... 778
If your vehicle has to be stopped in an emergency ................ 780
If your vehicle needs to be
towed ................................. 723
If your vehicle overheats ...... 775
Emergency flashers ................ 722 Engine
Accessory mode....................231
Compartment ........................655
Engine switch ................226, 229
Hood......................................651
How to start the engine .........................226, 229
Identification number .............785
If the engine will not start ......762
Ignition switch................226, 229
Overheating...........................775
Engine coolant
Capacity ................................790
Checking ...............................662
Preparing and checking before winter .......................352
Engine coolan t temperature
gauge ......................................244
Engine immobilizer system.....159
Engine oil Capacity ................................788
Checking ...............................657
Preparing and checking before winter .......................352
Engine switch ...................226, 229
EPS ............................................327
Event data recorder ...................27E

848 Alphabetical index
SIENNA_U (OM45477U)
Floor mat...................................605
FluidBrake .....................................665
Washer .................................. 671
Fog lights Replacing light bulbs ............. 709
Switch.................................... 280
Wattage .................................796
Front fog lights
Replacing light bulbs ............. 709
Switch.................................... 280
Wattage .................................796
Front passenger occupant classification system ............183
Front passenger’s seat belt
reminder light.........................733
Front seats Adjustment .............................. 95
Driver’s seat position
memory ............................... 120
Front side marker lights Replacing light bulbs ............. 709
Switch.................................... 266
Wattage .................................796
Front turn signal lights
Replacing light bulbs ............. 709
Switch.................................... 241
Wattage .................................796
Fuel Capacity ................................787
Fuel gauge ............................ 244
Fuel pump shut off system ....728
Gas station information .........860
Information ............................ 797
Refueling ............................... 155
Type ......................................787
Fuel door...................................155
Fuel filler door .......................... 155
Fuel pump shut off system ..... 728
Fuses......................................... 696 Garage door opener ................ 609
Gauges...................................... 244
Glove box ................................. 573
Grocery bag hooks .................. 603
Hands-free system
(for cellular phone) ................ 529
Head restraints
Adjusting .............................. 125
Headlights Manual headlight leveling
dial ...................................... 269
Replacing light bulbs ............. 709
Switch ................................... 266
Wattage................................. 796
Heaters Seat heaters.......................... 598
Side mirror ............................ 405
Hill-start assist control ............ 333
Hood.......................................... 651
Hooks Cargo .................................... 607
Grocery bag .......................... 603
Horn .......................................... 243FG
H

851
Alphabetical index
SIENNA_U (OM45477U)
Rear turn signal lights
Replacing light bulbs ............ 709
Switch ................................... 241
Wattage ................................ 796
Rear view mirror Compass .............................. 617
Rear window defogger............ 405
Rear window wiper.................. 290
Replacing Electronic key battery ........... 693
Fuses.................................... 696
Light bulbs ............................ 709
Rear seat entertainment system control battery ........ 496
Tires ..................................... 747
Wireless remote control
battery ................................ 693
Reporting safety defects for
U.S. owners ........................... 826
Roof luggage carrier ............... 346
Safety connect......................... 622
Seat belts Adjusting the seat belt .......... 129
Automatic Locking
Retractor ............................ 131
Child restraint system
installation .......................... 194
Cleaning and maintaining the seat belts...................... 636
Emergency Locking Retractor ............................ 131
How to wear
your seat belt ..................... 128
How your child should wear the seat belt ....................... 132
Pre-collision seat belt ........... 131
Pregnant women, proper seat belt use ........... 132
Reminder light ...................... 733
Seat belt extenders .............. 133
Seat belt pretensioners ........ 131 Seat heaters..............................598
Seating capacity.......................351
Seats
Adjustment ......................95, 100
Adjustment precaution .....................99, 116
Child seats/child restraint system installation ..............194
Cleaning ................................635
Driver’s seat position
memory ...............................120
Head restraint........................125
Properly sitting in the seat .....166
Seat heaters ..........................598
Service reminder
indicators ..............................247
Shift lever Automatic transaxle...............236
If the shift lever cannot
be shifted from P................. 764
Shift lock system .....................764
Side airbags..............................168
Side marker lights Replacing ..............................709
Switch....................................266
Wattage .................................796
Side mirrors Adjusting and folding .............140
Mirror position memory .........120
Sliding doors Sliding doors ...........................67
Wireless remote control ..........53
Smart key system Entry function ..........................36
Starting the engine ................229
S

856
SIENNA_U (OM45477U)
What to do if...
What to do if...
A tire puncturesP. 745/P. 7 4 7If you have a flat tire
The engine does not start
P. 762If the engine will not start
P. 159Engine immobilizer system
P. 770If the battery is discharged
The shift lever cannot be
moved outP. 764If the shift lever cannot be shifted
from P
The engine coolant temperature
gauge enters the red zone
Steam can be seen coming
from under the hood
P. 775If your vehicle overheats
The key is lostP. 766If you lose your keys
The battery runs outP. 770If the battery is discharged
The doors cannot be locked
P. 6 0Front doors
P. 6 7Siding doors
P. 8 2Back door
The horn begins to soundP. 162Alarm
The vehicle is stuck in
mud or sandP. 778If the vehicle becomes stuck