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WHEELS AND TIRES
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459
CAUTION
•
After inflating the tires, always reinstall
the valve cap to help avoid damage to the
valve from dirt, gravel, etc.
•
Use plastic valve caps only. Metal caps
could corrode and become difficult to
remove.
Related information
•
Wheel bolts (p. 456)
•
Jack (p. 454)
Tire Pressure Monitoring System
(TPMS)
TPMS provides a warning if inflation pressure in
one or more tires is too low. It also uses a sym-
bol (called a telltale) that will flash for
60 seconds and then glow steadily if there is a
system malfunction.
TPMS uses the rotational speed of the tires in
combination with signal analysis of the ABS sen-
sor signals to determine if they are properly infla-
ted. When a tire is under-inflated, its diameter
(and consequently also its rotational speed)
changes. By comparing the individual tires with
each other it is possible to determine if one or
more tires are under inflated. If inflation pressure
is too low, an indicator symbol will illuminate in
the instrument panel and a text message will be
displayed.
Symbol Explanation
The symbol illuminates to indicate
low tire inflation pressure.
If a malfunction occurs in the sys-
tem, the tire pressure warning sym-
bol will flash for approximately
1 minute and then remain illumi-
nated.
Each tire, including the spare (if provided), should
be checked monthly when cold and inflated to
the inflation pressure recommended by the vehi-
cle manufacturer on the vehicle placard or tire
inflation pressure label. (If your vehicle has tires
of a different size than the size indicated on the
vehicle placard or tire inflation pressure label, you
should determine the proper tire inflation pres-
sure for those tires.)
As an added safety feature, your vehicle has
been equipped with a tire pressure monitoring
system (TPMS) that illuminates a low tire pres-
sure telltale when one or more of your tires is
significantly under-inflated. Accordingly, when the
low tire pressure telltale illuminates, 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 cau-
ses the tire to overheat and can lead to tire fail-
ure. Under-inflation also reduces fuel efficiency
and tire tread life, and may affect the vehicle's
handling and stopping ability. Please note that
the TPMS is not a substitute for proper tire main-
tenance, and it is the driver's responsibility to
maintain correct tire pressure, even if under-infla-
tion has not reached the level to trigger illumina-
tion of the TPMS low tire pressure telltale.
Your vehicle has also been equipped with a
TPMS malfunction indicator to indicate when the
system is not operating properly. The TPMS mal-
function indicator is combined with the low tire
pressure telltale.
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