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216
Tires and wheels
Tire pressure
monitoring
system
General notes
Applies to vehicles: with tire pressure monit ori ng syst em
Each tire, including the spare (if provided),
should be checked monthly when cold and in-
f lated to the inflation pressure recommended
by the vehicle manufacturer on the vehicle
placard or tire inflation pressure label. (If your
vehicle has t ires of a different size than the
size indicated on the vehicle placard or tire in-
flation pressure label, you should determine
the proper tire inflation pressure 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
pressure telltale when one or more of your
tires is significantly under-inflated. Accord ing-
ly, when the low tire pressure telltale illumi-
nates, you should stop and check your tires as
soon as possible, and inflate them to the
proper pressure. Driving on a significantly un-
der-inflated tire causes the tire to overheat
and can lead to tire failure. Under-inflation al-
so 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 maintenance, and it is the driv-
er's responsib ility to ma inta in correct tire
pressure , even if under-inflation has not
reached the leve l to trigger illumination of the
TPMS low tire pressure telltale.
Your veh icle has also been equ ipped with a
TPMS malfunction indicato r to indicate when
the system is not operating properly. The
TPMS malfunction indicator is combined with
the low tire pressure telltale . When the sys-
tem detects a malfunction, the telltale will
f lash for approximately one minute and then
remain continuously illuminated. This se-
quence will continue upon subsequent vehicle
start-ups as long as the malfunction exists.
When the malfunction indicator is illuminat-
ed, the system may not be ab le to detect or
signal low tire pressure as intended. TPMS
malfunctions may occur for a variety of rea-
sons, including the installation of replace-
ment or alternate tires or wheels on the vehi -
cle that prevent the TPMS from functioning
properly . Always check the TPMS malfunction
telltale after replacing one or more tires or
wheels on your vehicle to ens ure that the re-
placement or alternate tires and wheels allow
the TPMS to continue to function properly.
Tire pressure indicator appears
Appl ies to vehicles: with t ire pressure mo nito rin g system
The tire pressure indicator in the instrument
cluster informs you if the tire pressure is too
low or if there is a system malfunction.
Fig. 155 Display : underinflatio n warning
Fig. 156 Display: System malf unction
Using the ABS sensors, the tire pressure moni-
toring system compares the tire tread circum-
ference and vibration characteristics of the in-
dividual tires . If the pressure decreases in one
or more t ires, this is ind icated in the instru-
ment cluster with a warning symbol
[I]
and a
message
r=:>
fig. 155 .
The driver message in the
display goes out after 5 seconds. The driver
message can be displayed again by pressing
11--
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