2012 TOYOTA SIENNA tow

648 4-3. Do-it-yourself maintenance
SIENNA_U (OM45477U)
ItemsParts and tools
Engine oil levelP. 657)
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses (P. 696)• Fuse with same amperage rating
as original
Light bulbs (P. 709)
• Bulb with same number and watt-
age rating as original
• Phillips-head screwdriver
• Flathead screwdriver
• Wrench
Radiator and condenser (P. 664)
Tire inflation pressure ( P. 683)• Tire pressure gauge
• Compressed air source
Washer fluid (P. 671)
• Water or washer fluid containing
antifreeze (for winter use)
• Funnel (used only for adding water or washer fluid)

681
4-3. Do-it-yourself maintenance
4
Maintenance and care
SIENNA_U (OM45477U)
CAUTION
■When inspecting or replacing tires
Observe the following precautions to
prevent accidents. Failure to do so
may cause damage to parts of the drive train, as well as dangerous han-
dling characteristics, which may lead to an accident resulting in death or
serious injury.
●Do not mix tires of different ma kes, models or tread patterns.
Also, do not mix tires of remarkably different treadwear.
●Do not use tire sizes other than those recommended by Toyota.
●Do not mix differently constructed ti res (radial, bias-belted or bias-ply
tires).
●Do not mix summer, all season and snow tires.
●Do not use tires that have been used on another vehicle.
Do not use tires if you do not know how they were used previously.
●Do not tow if your vehicle has a compact spare tire installed.
■When initializing the tire pressure warning system
Do not operate the tire pressure wa rning reset switch without first adjust-
ing the tire inflation pr essure to the specified level. Otherwise, the tire
pressure warning light may not come on even if the tire inflation pressure
is low, or it may come on when the ti re inflation pressure is actually nor-
mal.

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

5
When trouble arises
723
5-1. Essential information
SIENNA_U (OM45477U)
If your vehicle needs to be towed
Before towingThe following may indicate a problem with your transaxle. Contact
your Toyota dealer before towing.
● The engine is running but the vehicle will not move.
● The vehicle makes an abnormal sound.
If towing is necessary, we recommend having your vehicle towed by
your Toyota dealer or a commercia l towing service, using a wheel-lift
type truck or flat bed truck.
Use a safety chain system for all to wing, and abide by all state/pro-
vincial and local laws.
2WD models: If towing your vehicle with a wheel-lift type truck from
the front, the vehicle’s rear wheels and axles must be in good condi-
tions. ( P. 724, 726)
If they are damaged, use a towing dolly or flat bed truck.
AWD models: If towing your vehicle with a wheel-lift type truck, use a
towing dolly. (P. 724, 726)

724 5-1. Essential information
SIENNA_U (OM45477U)
Towing with a sling-type truckDo not tow with a sling type truck
to prevent body damage.
Towing with a wheel-lift type truckFrom the front (2WD models) Release the parking brake.

5
When trouble arises
725
5-1. Essential information
SIENNA_U (OM45477U)
From the front (AWD models)
Use a towing dolly under the rear
wheels.
From the rear Use a towing dolly under the
front wheels.
Using a flatbed truck
If you use chains or cables to tie
down your vehicle, the angles
shaded in black must be 45.
Do not overly tighten the tie
downs or the vehicle may be
damaged.

726 5-1. Essential information
SIENNA_U (OM45477U)
NOTICE
■To prevent body damage when towing with a sling-type truck
Do not tow with a sling-type truck, either from the front or rear.
■ To prevent causing serious damage to the transaxle and Active Torque
Control 4WD system (AWD models) wh en towing using a wheel-lift type
truck
■ To prevent damaging the vehicle wh en towing using a wheel-lift type
truck
When raising the vehicle, ensure adequate ground clearance for towing at
the opposite end of the raised vehicle. Without adequate clearance, the
vehicle could be damaged while being towed.
■ Recreational towing (beh ind motor home, etc.)
Never dinghy tow your vehicle to prevent causing serious damage to the
Active Torque Control 4WD system (AWD models) and transaxle. ( P. 376)
2WD models: Never tow this vehicle from
the rear with the front wheels on the
ground. This may cause serious damage
to the transaxle. If towing from the rear,
use a towing dolly.
AWD models: Never tow this vehicle with
any of the wheels on the ground. This
may cause serious damage to the tran-
saxle and Active Torque Control 4WD
system. Use a towing dolly.
ITN51N007
ITN51N008

754 5-2. Steps to take in an emergency
SIENNA_U (OM45477U)Firmly tighten each wheel nut
two or three times in the order
shown in the
illustration.
Tightening torque:
76 ft•lbf (103 N•m, 10.5 kgf•m)
Stow the flat tire, tire jack and all tools.
Stowing the flat tire
Remove clasps and strap.
Place tire standing up in rear tub,
after putting the tire in the tire
bag.
STEP4
STEP5
STEP1
STEP2