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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 t ire failure. Under-inflation
a lso 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-
sponsib ility to ma intain correct tire pressure,
even if under-inflation
has not reached the level
to tr igger illum inat ion of the TPMS low tire pres-
sure telltale.
Your veh icle has also bee n eq uipped w ith a TPMS
malfunct ion indicator to indicate when the sys-
tem is not operat ing properly . The TPMS ma l-
function ind icator is combined w ith t he low tire
pressure t ellta le. Whe n the system detects a
malfunct ion, the te lltale will flash fo r approx i-
mately one mi nute and then remain continuo usly
illuminated. This sequence will continue upon
subseq uent veh icle start-ups as long as the ma l-
function exists .
When t he malfunction indicator is illuminated,
the system may not be ab le to detect or signal
low tire press ure as intended. TPMS ma lfunctions
may occur for a var iety of reasons, including the
installation of replacement
or alternate t ires or
wheels on the vehicle that prevent the TPMS
from functioning properly . Always check the
TPMS malfunction telltale afte r rep lacing one or
mo re t ires o r whee ls on your vehicle to e ns ur e
th at t he replacement
or alt ern ate t ires and
wheels a llow the TPMS t o con ti nue to function
properly .
Wh e el s
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. 17 1 Instrument clust er: indicator lig ht w ith message
Using the ABS sensors, the t ire pressure monito r-
ing system compares the tire tread circumfer-
ence and vibration characterist ics of the ind ividu -
al tires. If the press ur e changes in one or more
t ires, th is is indicated in the instrument cluster
display with an indica t or ligh t
IE
and a message.
If
only one tire is affected, the locat ion of t ha t
t ire will be indicated.
The t ire press ur es mus t be stored in the Infota in-
me nt system again each time t he pr essures
change (switching between parti al and full load
pressure) or afte r changing or replac ing a tire on
your vehicle ¢
page 226 .
The tire pressure moni-
toring system on ly monitors the tire pressure you
have stored. Refer to the t ire pressure label for
the recommended
t ire pressure for your vehicle
r=> page 217, fig . 170.
Tire tread circumference and vibration character -
istics can change and ca use a tire press ur e warn-
ing if:
- the tire pressure in one or more tires is too low.
- t he t ire has str uctural damage.
- t he t ire was re placed or the t ire pressu re was
cha nged and it was no t stored ¢
page 226 .
- t he spare tire* is installed .
Indicator lights
IE
Loss of pressure in at least one tire ¢ .& .
Check the tires and replace or repair if necessary .
IJJ,,
225
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