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Final tire failure
Vibrations or loud noises while driving
can indicate the final failure of the tire. Reduce
speed and stop; otherwise, pieces of the tire
could come loose and cause an accident. Do
not continue driving, and contact your service
center.◀
Message indicating that the inflation
pressure needs to be checked
The yellow warning light lights up.
A Check Control message is displayed.
▷ The system has detected that a wheel was
changed but a reset was not performed.
▷ The tire was not inflated according to speci‐
fications.
▷ The tire pressure has dropped since the last
confirmation.
In this case:
▷ Check the tire inflation pressure and correct
it if necessary.
▷ After changing a wheel, reset the system.
System limits
The system will not function properly if a reset
was not performed, e.g., it may identify a tire as
flat although the tire is filled to the correct infla‐
tion pressure.
The tire pressure depends on the temperature
of the tire. An increase in the tire temperature,
e.g., while driving or due to sunlight, increases
the tire inflation pressure. The tire pressure de‐
creases when the tire temperature drops. In
case of severe temperature drops, this behavior
may lead to a warning on account of the de‐
fined warning limits.
Malfunction
The yellow warning light flashes yellow
and then lights up continuously.
A Check Control message is displayed.
A flat tire or tire inflation pressure loss cannot
be detected.
Display in the following situations:
▷ A wheel without TPM electronics is
mounted, e.g., a compact wheel:
Have the system checked by the service
center if necessary.
▷ Malfunction:
Have the system checked by the service
center.
▷ TPM was unable to complete the reset.
Reset the system again.
The yellow warning light flashes and
then lights up continuously.
A Check Control message is displayed.
A flat tire or tire inflation pressure loss cannot
be detected.
Display in the following situation:
▷ Disturbance by other systems or devices
with the same radio frequency:
After leaving the area of the disturbance,
the system automatically becomes active
again.
Declaration according to NHTSA/FMVSS
138 Tire Pressure Monitoring Systems
Each tire, including the spare (if provided)
should be checked monthly when cold and in‐
flated to the inflation pressure recommended
by the vehicle 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 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 pres‐
sure telltale when one or more of your tires is
significantly under-inflated. Accordingly, when
the low tire pressure telltale illuminates, you
Seite 89
Safety
CONTROLS
89
Online Edition for Part no. 01 40 2 961 029 - II/15
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