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Tires and wheels
the vehicle placard or tire inflation pressure
la-
bel, 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 tell-
tale when one or more of your tires is significant-
ly
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 signifi-
cantly
under-inflated
tire causes
the
tire to over-
heat and can lead to tire failure. Under-inflation
also reduces
fuel efficiency and
tire tread
life,
and may affect the vehicle's handling and stop-
ping ability.
Please
note that the TPMS
is
not
a
substitute for
proper
tire
maintenance,
and it is the
driver's re-
sponsibility
to
maintain correct tire pressure,
even
if
under-inflation
has not reached the level
to trigger illumination of the TPMS
low
tire pres-
sure telltale.
Your vehicle has also been equipped with a
TPMS
malfunction indicator to
indicate
when the sys-
tem is not operating properly. The TPMS mal-
function indicator is combined with the
low
tire
pressure telltale. When the system detects a
malfunction, the telltale will flash for approxi-
mately one minute and then remain continuously
illuminated. This sequence will continue upon
subsequent vehicle start-ups as long as
the
mal-
function exists
.
When the malfunction indicator is illuminated,
the system may not be able
to
detect or signal
low tire pressure as
intended
.
TPMS
malfunctions
may occur for
a
variety of
reasons, including
the
installation of replacement
or alternate tires or
wheels on
the
vehicle 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 ensure
that the replacement
or alternate tires and
wheels allow the TPMS to continue to
function
properly
.
272
· If the Tire Pressure Monitoring System
indicator appears
Applies
to
vehicles: with tire pressure monitoring 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. 206
Instrument cluster: indicator light with
message
Using
the ABS sensors, the tire pressure monitor-
ing
system compares the tire tread circumfer-
ence and vibration characteristics
of the individu
-
al tires
.
If the pressure changes in one or more
tires
,
this is
indicated in
the instrument
cluster
display
with an
indicator light
Rt]
and a
message
¢
fig.
206.
If only one tire
is affected, the
loca-
tion of that
tire
will be indicated.
The
message
turns off after a few minutes. You can display the
message again
¢
page 30.
The
tire
pressures must
be
stored in
the
menu
display
again each time the pressures change
(switching between partial and full load pres-
sure) or after changing or replacing a tire on your
vehicle
¢
page 273.
The tire pressure monitor-
ing
system only monitors the tire pressure you
have stored
.
You can find the
recommended
tire
pressures for your vehicle on the
label
on the
driver's door pillar
¢
page 263.
Tire tread circumference and vibration character-
istics
can change and cause a
tire
pressure warn-
ing if:
- If
the tire pressure in one or more tires is too
low,
-
the tire has structural damage,
-
The tire was
replaced
or the tire pressure
changed and
it
was not stored again
¢
page 273
.
-
the spare tire is installed.
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