2009 TOYOTA 4RUNNER wheel

5
When trouble arises
443
5-2. Steps to take in an emergency
CAUTION
■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.
●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 pres-
sure adjustment, it is pr obable that you have a flat tire. Check the tires.
If the tire is flat, change to the spare tire and have the flat tire repaired
by the nearest Toyota dealer.
●Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate,
you could lose control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning syste m may not activate immediately.
■Maintenance of the tire
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 pressure telltale (tire pre ssure 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.

444 5-2. Steps to take in an emergency
CAUTION
Please note that the TPMS (tire pressure warning system) is not a sub-
stitute for proper tire maintenance, 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).
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.

448 5-2. Steps to take in an emergency
Replacing a flat tireChock the tires.
Flat tire
Wheelchock
positions
Front
Left-
hand
sideBehind the
rear right-
hand side
tire
Right-
hand
sideBehind the
rear left-
hand side
tire
Rear
Left-
hand
sideIn front of
the front
right-hand
side tire
Right-
hand
sideIn front of
the front
left-hand
side tire

5
When trouble arises
449
5-2. Steps to take in an emergency
Remove the wheel ornament using the wheel nut wrench as
shown.
To protect the wheel and wheel ornament, place a rag between
the wrench and the wheel ornament,
as shown in the illustration.
Steel wheel
Aluminum wheel
Slightly loosen the wheel nuts
(one turn).
STY52AI010

5
When trouble arises
451
5-2. Steps to take in an emergency
Remove all the wheel nuts and
the tire.
When resting the tire on the
ground, place the tire so that the
wheel design faces up to avoid
scratching the wheel surface.
Installing the tire
Remove any dirt or foreign mat-
ter from the wheel contact sur-
face.
If foreign matter is on the wheel
contact surface, the wheel nuts
may loosen while the vehicle is
in motion, and the tire may
come off the vehicle.
Install the tire and loosely tighten each wheel nut by hand by
approximately the same amount.
Replacing a steel wheel
Tighten the nuts until the tapered
portion comes into loose contact
with the disc wheel sheet.
Tapered portion
Disc
wheel
sheet

452 5-2. Steps to take in an emergency
Replacing an aluminum wheelTighten the nuts until the washer
of the nut comes into loose con-
tact with the disc wheel.
Lower the vehicle.
Firmly tighten each nut two or
three times in the order shown in
the illustration.
Tightening torque:
83 ft·lbf (110 N·m, 11.5 kgf·m)
Disc
wheel
Washer

5
When trouble arises
453
5-2. Steps to take in an emergency
Reinstall the wheel ornament.
Steel wheel
Aluminum wheel
Stowing the flat tire, jack and all tools
Lay down the tire with the outer side facing up, and install the
holding bracket.
Then secure the tire, taking care that the tire goes straight up
without catching on any other part , to prevent it from flying for-
ward during a collisio n or sudden braking.
Stow the tools and jack securely.
■After completing the tire change
The tire pressure warning system must be reset. (P. 390)

454 5-2. Steps to take in an emergency
CAUTION
■Using the jack
Improper use of the jack may lead to death or serious injuries due to the
vehicle suddenly falling off the jack.
●Do not use the jack for any purpose ot her than replacing tires or install-
ing and removing tire chains.
●Only use the jack that comes with this vehicle for replacing a flat tire.
Do not use it on other vehicles, an d do not use other jacks for replac-
ing tires on this vehicle.
●Always check that the jack is securely set to the jack point.
●Do not put any part of your body under the vehicle supported by a jack.
●Do not start or run the engine while your vehicle is supported by the
jack.
●Do not raise the vehicle while someone is in it.
●When raising the vehicle, do not put an object on or under the jack.
●Do not raise the vehicle to a hei ght greater than that required to
replace the tire.
●Use a jack stand if it is necessary to get under the vehicle.
Take particular care when lowering the vehicle to ensure that no one
working on or near the vehicle will be injured.
■Using the jack handle
Tighten all the square head bolts securely to prevent the extension parts
from coming apart unexpectedly.
■Replacing a flat tire
Observe the following precautions to reduce the risk of death or serious
injury.
●Lower the spare tire completely to the ground before removing it from
under the vehicle.
●Do not try to remove the wheel ornament by hand. Take due care in
handling the ornament to avoid unexpected personal injury.