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Communication AT A GLANCECONTROLSDRIVING TIPSENTERTAINMENT
79
NAVIGATIONMOBILITYREFERENCE
Malfunction
The small warning lamp flashes in yel-
low and then lights up continuously; the
larger warning lamp comes on in yel-
low. On the on-board computer, the
tires are shown in gray and a message appears.
No punctures can be detected.
This type of message is shown in the following
situations:
> If there is a malfunction.
Have the system checked.
> If a wheel without TPM electronics has been
mounted.
> If TPM is temporarily malfunctioning due to
other systems or devices using the same
radio frequency.
Message for unsuccessful system reset
Both warning lamps come on in yellow.
A message appears on the on-board
computer. The system is not reset after
a tire has been changed, for example.
Check the tire inflation pressure and reset the
system, page 77.
Declaration according to NHTSA/
FMVSS 138 Tire Pressure Monitoring
Systems
Each tire, including the spare, should be
checked monthly when cold and inflated to the
inflation pressure recommended by the vehicle
manufacturer on the vehicle placard or tire infla-
tion pressure label. If your vehicle has tires of a
different size than the size indicated on the vehi-
cle 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 pres-
sure monitoring system TPMS that illuminates a
low tire pressure telltale when one or more of
your tires are significantly underinflated.
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
underinflated tire causes the tire to overheat
and can lead to tire failure. Underinflation 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 substi-
tute for proper tire maintenance, and it is the
driver's responsibility to maintain correct tire
pressure, even if underinflation has not reached
the level at which the TPMS low tire pressure tell-
tale illuminates.
The TPMS malfunction indicator is combined
with the low tire pressure telltale. When the sys-
tem detects a malfunction, the telltale will flash
for approximately one minute and then remain
continuously lit. This sequence will continue
upon subsequent vehicle startups as long as the
malfunction exists. When the malfunction indi-
cator 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 replace-
ment or alternate tires or wheels on the vehicle
that prevent the TPMS from functioning prop-
erly. 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.
Online Edition for Part no. 01 40 2 605 675 - © 07/10 BMW AGOnline Edition for Part no. 01 40 2 605 675 - © 07/10 BMW AG
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