2012 TOYOTA SIENNA fuel pump

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

706 4-3. Do-it-yourself maintenance
SIENNA_U (OM45477U)
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 A Automatic 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 A Air 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
levering 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
721
SIENNA_U (OM45477U)
5-1. Essential informationEmergency 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

728
5-1. Essential information
SIENNA_U (OM45477U)
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 leakage 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

797
6-1. Specifications
6
Vehicle specifications
SIENNA_U (OM45477U)
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.

798 6-1. Specifications
SIENNA_U (OM45477U)
■Recommendation of the use of gaso line containing detergent additives
● Toyota recommends the use of gasoline that contains detergent additives
to avoid build-up of engine deposits.
● All gasoline sold in the U.S.A. contains detergent additives to clean and/
or keep clean intake systems.
■ Recommendation of the use of cleaner burning gasoline
Cleaner burning gasoline, including reformulated gasoline that contains oxy-
genates such as ethanol or MTBE (Methyl Tertiary Butyl Ether) is available in
many areas.
Toyota recommends the use of cleaner burning gasoline and appropriately
blended reformulated gasoline. These types of gasoline provide excellent
vehicle performance, reduce vehicle emissions and improve air quality.
■ 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.
●Use only gasoline containing a maxi-
mum of 10% ethanol.
DO NOT use any flex-fuel or gasoline
that could contain more than 10% etha-
nol, including from any pump labeled
E15, E30, E50, E85 (which are only
some examples of fuel containing more
than 10% ethanol).DO NOT use gasoline
containing more than
10% ethanol.
(15% ethanol)
(50% ethanol)
(85% ethanol)

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