
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

721
4-3. Do-it-yourself maintenance
4
Maintenance and care
SIENNA_OM_OM45483U_(U)
FuseAmpereCircuit
16 PSD LH 25 A Power sliding door (left-side)
17 4WD 7.5 A Active Torque Control 4WD
18 AM1 10 A Starting system
19 GAUGE NO.2 7.5 A Gauges and meters, multi informa-
tion display
20 IG2 7.5 AAutomatic transaxle, multiport fuel
injection system/sequential multi-
port fuel injection system, SRS air-
bag system, front passenger
occupant classification system,
steering lock system, smart key
system, starting system, fuel pump
21 PANEL 10 AAir conditioning system, navigation
system, front passenger’s seat belt
reminder light, audio system, steer-
ing switch, intuitive parking assist
switch, personal/interior light main
switch, shift lever light, headlight
leveling switch, power door lock
main switch, clock, power quarter
window switch, seat heater switch,
emergency flashers, rear window
defogger switch, vehicle stability
control off switch, console box light,
power slide switch light

When trouble arises5
735
SIENNA_OM_OM45483U_(U)
5-1. Essential informationEmergency 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

742
5-1. Essential information
SIENNA_OM_OM45483U_(U)
Fuel pump shut off system
Follow the procedure below to restart the engine after the system is
activated.
Vehicles without a smart key system
Turn the engine switch to the “ACC” or “LOCK” position.
Restart the engine.
Vehicles with a smart key system Turn the “ENGINE START STOP” switch to ACCESSORY
mode or turn it off.
Restart the engine.
NOTICE
■Before starting the engine
Inspect the ground under the vehicle.
If you find that fuel has leaked onto the ground, the fuel system has been
damaged and is in need of repair. Do not restart the engine.
To minimize the risk of fuel leakag e when the engine stalls or when
an airbag inflates upon collision , the fuel pump shut off system
stops the supply of fuel to the engine.
STEP1
STEP2
STEP1
STEP2

810
6-1. Specifications
SIENNA_OM_OM45483U_(U)
Fuel infor mation
■Fuel tank opening fo r unleaded gasoline
To help prevent incorrect fueling, your Toyota has a fuel tank opening that
only accommodates the special nozzle on unleaded fuel pumps.
■ Gasoline quality
In very few cases, driveability problems may be caused by the brand of gas-
oline you are using. If driveability problems persist, try changing the brand of
gasoline. If this does not correct the problem, consult your Toyota dealer.
■ Gasoline quality standards
●Automotive manufacturers in the U.S.A., the Europe and Japan have
developed a specification for fuel quality called World-Wide Fuel Charter
(WWFC), which is expected to be applied worldwide.
● The WWFC consists of four categories that are based on required emis-
sion levels. In the U.S., category 4 has been adopted.
● The WWFC improves air quality by lowering emissions in vehicle fleets,
and improves customer satisfaction through better performance.
You must only use unleaded gasoline in your vehicle.
Select octane rating 87 (Research Octane Number 91) or higher. Use
of unleaded gasoline with an octane rating lower than 87 may result
in engine knocking. Persistent kno cking can lead to engine damage.
At minimum, the gasoline you use should meet the specifications
of ASTM D4814 in the U.S.A. and CGSB3.5-M93 in Canada.

812 6-1. Specifications
SIENNA_OM_OM45483U_(U)
■Non-recommendation of the use of blended gasoline
●If you use gasohol in your vehicle, be sure that it has an octane rating no
lower than 87.
● Toyota does not recommend the use of gasoline containing methanol.
■ Non-recommendation of the use of gasoline containing MMT
Some gasoline contains an octane enhancing additive called MMT (Methyl-
cyclopentadienyl Manganese Tricarbonyl).
Toyota does not recommend the use of gasoline that contains MMT. If fuel
containing MMT is used, your emission control system may be adversely
affected.
The malfunction indicator lamp on the instrument panel may come on. If this
happens, contact your Toyota dealer for service.
■ If your engine knocks
●Consult your Toyota dealer.
● You may occasionally notice light knocking for a short time while acceler-
ating or driving uphill. This is normal and there is no need for concern.
●Use only gasoline containing up to 15%
ethanol.
DO NOT use any flex-fuel or gasoline
that could contain more than 15% etha-
nol, including from any pump labeled
E30, E50, E85 (which are only some
examples of fuel containing more than
15% ethanol).DO NOT use gasoline
containing more than
15% ethanol.
(30% ethanol)
(50% ethanol)
(85% ethanol)

860 Alphabetical index
SIENNA_OM_OM45483U_(U)
Floor mat................................... 622
FluidBrake ..................................... 681
Washer .................................. 687
Fog lights Replacing light bulbs ............. 724
Switch.................................... 284
Wattage ................................. 809
Front fog lights
Replacing light bulbs ............. 724
Switch.................................... 284
Wattage ................................. 809
Front passenger occupant classification system ............ 185
Front passenger’s seat belt
reminder light......................... 747
Front seats Adjustment ..............................95
Driver’s seat position
memory ............................... 121
Front side marker lights Replacing light bulbs ............. 724
Switch.................................... 270
Wattage ................................. 809
Front turn signal lights
Replacing light bulbs ............. 724
Switch.................................... 243
Wattage ................................. 809
Fuel Capacity ................................ 800
Fuel gauge ............................ 246
Fuel pump shut off system .... 742
Gas station information ......... 872
Information ............................ 810
Refueling ............................... 156
Type ...................................... 800
Fuel door................................... 156
Fuel filler door .......................... 156
Fuel pump shut off system ..... 742
Fuses......................................... 711 Garage door opener ................ 626
Gauges...................................... 246
Glove box ................................. 589
Grocery bag hooks .................. 620
Hands-free system
(for cellular phone) ................ 545
Head restraints
Adjusting .............................. 126
Headlights Manual headlight leveling
dial ...................................... 273
Replacing light bulbs ............. 724
Switch ................................... 270
Wattage................................. 809
Heaters Seat heaters.......................... 614
Side mirror ............................ 421
Hill-start assist control ............ 337
Hood.......................................... 669
Hooks Cargo .................................... 624
Grocery bag .......................... 620
Horn .......................................... 245FG
H