TOYOTA SIENNA 2012 XL30 / 3.G Owners Manual

5
When trouble arises
741
5-2. Steps to take in an emergency
SIENNA_U (OM45477U)
CAUTION
■When the electric power steering system warning light comes on
The steering wheel may become extremely heavy.
If the steering wheel becomes heavier than usual when operating, hold
firmly and operate using more force than usual.
■If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could
cause loss of vehicle control and result in death or serious injury.
●Vehicles with standard tires:
• Stop your vehicle in a safe place as soon as possible. Adjust the
tire inflation pressure immediately.
• If the tire pressure warning light comes on even after tire inflation pressure adjustment, it is probable that you have a flat tire. Check
the tires. If a tire is flat, change it with the spare tire and have the
flat tire repaired by the nearest Toyota dealer.
• Avoid abrupt maneuvering and brak ing. If the vehicle tires deterio-
rate, you could lose control of th e steering wheel or the brakes.
●Vehicles with run-flat tires:
• Decelerate to the lowest appropr iate speed as soon as possible.
Do not drive over 55 mph (90 km/h).
• Check and adjust the tire inflation pressure immediately.
• If the tire pressure warning light comes on even after tire inflation pressure adjustment, it is probable that you have a flat tire. Have
the tire replaced by the nearest Toyota dealer.
• Avoid abrupt maneuvering and brak ing. If the vehicle tires deterio-
rate, you could lose control of th e steering wheel or the brakes.

742 5-2. Steps to take in an emergency
SIENNA_U (OM45477U)
CAUTION
■If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.
■Maintenance of the tires
Each tire, including the spare (if provided), should be checked monthly
when cold and inflated to the inflation pressure recommended by the
vehicle manufacturer on the vehicle placard or tire inflation pressure
label (tire and load information label). (If your vehicle has tires of a differ-
ent size than the size indicated on the vehicle placard or tire inflation
pressure label [tire and load information label], you should determine the
proper tire inflation pr essure for those tires.)
As an added safety feature, your vehicle has been equipped with a tire
pressure monitoring system (TPMS-ti re pressure warning system) that
illuminates a low tire pressure telltal e (tire pressure warning light) when
one or more of your tires is significantly under-inflated. Accordingly,
when the low tire pressu re telltale (tire pressure warning light) illumi-
nates, you should stop and check your tires as soon as possible, and
inflate them to the proper pressure. Driving on a significantly under-
inflated tire causes the tire to overheat and can lead to tire failure.
Under-inflation also reduces fuel effi ciency and tire tread life, and may
affect the vehicle’s handling and stopping ability.
Please note that the TPMS (tire pressure warning system) is not a sub-
stitute for proper tire main tenance, and it is the driver’s responsibility to
maintain correct tire pressure, even if under-inflation has not reached the
level to trigger illu mination of the TPMS low tire pressure telltale (tire
pressure warning light).

5
When trouble arises
743
5-2. Steps to take in an emergency
SIENNA_U (OM45477U)
CAUTION
Your vehicle has also been equipped with a TPMS (tire pressure warning
system) malfunction indicator to indi
cate when the system is not operat-
ing properly. The TPMS (tire pressure warning system) malfunction indi-
cator is combined with the low tire pressure telltale (tire pressure
warning light). When the system det ects a malfunction, the telltale will
flash for approximately one minute an d then remain continuously illumi-
nated. This sequence will continue upon subsequent vehicle start-ups as
long as the malfunction exists. When the malfunction indi cator is illumi-
nated, the system may not be able to detect or signal low tire pressure
as intended.
TPMS (tire pressure warning system) malfunctions may occur for a vari-
ety of reasons, including the installati on of replacement or alternate tires
or wheels on the vehicle that prevent the TPMS (tire pressure warning
system) from functioning properly. Always check the TPMS (tire pres-
sure warning system) malfunction te lltale after replacing one or more
tires or wheels on your vehicle to ensure that the replacement or alter-
nate tires and wheels allow the TPMS (tire pressure warning system) to
continue to function properly.
NOTICE
■Precaution when installing a different tire
When a tire of a different specification or maker is installed, the tire pres-
sure warning system may not operate properly.

744
5-2. Steps to take in an emergency
SIENNA_U (OM45477U)
If a warning message is displayed
: If equipped
The multi-information display shows warnings of system malfunc-
tions or incorrectly performed operations. When a message is
shown, perform corrections as indicated in the message.
Master warning light
The master warning light comes on or flashes when a message is
being shown on the multi-information display.
Multi-information display
Warning message
Correction procedure
■ Warning buzzer
A buzzer may sound when a warning message is shown on the
multi-informat ion display.
■ If the warning message is shown again after its correction
procedure has been performed
Contact your Toyota dealer as soon as possible.

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When trouble arises
745
5-2. Steps to take in an emergency
SIENNA_U (OM45477U)
If you have a flat tire (vehicles with run-flat tires)
■In some condition (such as at high temperatures)
You cannot continue driving for up to 100 miles (160 km).
■For the detailed information on run-flat tires
See the tire warranty booklet.
You can continue driving a vehicle with run-flat tires even if any
tire goes flat.
In this case, slow down and drive with extra caution.
■Run-flat tires (A “RFT” or “DSST” mark is molded on the
sidewall)
Take your vehicle to the near-
est Toyota dealer or autho-
rized tire dealer as soon as
possible if any tire goes flat.
The vehicle can be driven for
a maximum of 100 miles
(160 km) at a speed below 55
mph (90 km/h) after the tire
pressure warning light comes
on. (P. 733)

746 5-2. Steps to take in an emergency
SIENNA_U (OM45477U)
NOTICE
■When replacing the tires
When removing or fitting the wheels, tires or the tire pressure warning
valve and transmitter, contact your Toyota dealer as the tire pressure
warning valve and transmitter may be damaged if not handled correctly.
■When driving over bumps
If a vehicle has a flat tire, the ve hicle height will be lower than usual.
Ensure that nothing strikes the bottom of the vehicle.
■To avoid damaging the tire pressure warning valves and transmit-
ters
Do not use liquid sealants on flat tires.

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When trouble arises
747
5-2. Steps to take in an emergency
SIENNA_U (OM45477U)
If you have a flat tire (vehicles with standard tires)
Remove the flat tire and replace it with the spare tire provided.
■Before jacking up the vehicle
●Stop the vehicle on a hard, flat surface.
● Set the parking brake.
● Shift the shift lever to P.
● Stop the engine.
● Turn on the emergency flashers.
■ Location of the spare tire, jack and tools
Spare tire Jack
Wheel nut wrench
Jack handle Tire bag
Adapter socket
Tire strap

748 5-2. Steps to take in an emergency
SIENNA_U (OM45477U)
Taking out the jack and toolsRemove the cover.
Remove the adapter socket.
Remove the jack.
STEP1
STEP2
STEP3

5
When trouble arises
749
5-2. Steps to take in an emergency
SIENNA_U (OM45477U)
Remove the wheel nut wrench.
Taking out the spare tire
Slide the front passenger’s seat to the frontmost lock position
and the right side second seat to the rearmost lock position so
they will not interfere with the jack handle.
Open the right side sliding door
and you will find the flap on the
floor. Pull back the flap to find the
spare tire clamp bolt.
STEP4
STEP1
STEP2

750 5-2. Steps to take in an emergency
SIENNA_U (OM45477U)Attach the adapter socket over
the spare tire clamp bolt.
Connect the jack handle and the
adapter socket. Turn the jack
handle.
The tire will be lowered com-
pletely to the ground.
Take the spare tire out from
underneath the vehicle and
remove the holding bracket.
STEP3
STEP4