BMW M4 COUPE Owner's Manual page 337

Icon Possible cause
There is a flat tire or a major tire pres‐
sure loss.
No reset was performed for the sys‐
tem. The system issues a warning
based on the tire inflation pressures
stored during the last reset.
Measure
1. Reduce your speed and stop cautiously.
Avoid sudden braking and steering maneu‐
vers.
2. Read the description on What to do in case of
a flat tire.
Actions in the event of a flat tire, refer to
page 337.
Actions in the event of a flat tire
1. Identify the damaged tire.
Check the tire pressure in all four tires, for in‐
stance using the tire pressure display of a flat
tire kit.
For tires with special approval: if the tire pres‐
sure in all four tires is correct, the Tire Pres‐
sure Monitor may not have been reset. In this
case, perform the reset.
If tire damage cannot be found, contact a
dealer's service center or another qualified
service center or repair shop.
2. Repair the flat tire, e.g., with a flat tire kit or by
changing the wheel.
Use of sealing compound, for instance from
the flat tire kit, may damage the wheel elec‐
tronics. Have the electronics replaced at the
next opportunity.
System limits
Temperature
The tire inflation pressure depends on the tire's
temperature.
Online Edition for Part no. 01405A38097 - VI/21
Wheels and tires
Driving or exposure to the sun will increase the
tire's temperature, thus increasing the tire infla‐
tion pressure.
The tire inflation pressure is reduced when the
tire temperature falls again.
These circumstances may cause a warning
when temperatures fall very sharply.
Sudden tire pressure loss
The system cannot indicate sudden serious tire
damage caused by external circumstances.
Failure performing a reset
Tires with special approval: the system will not
function correctly if a reset was not performed,
for example a flat tire may be indicated although
the tire inflation pressures are correct.
Malfunction
Message
The yellow warning light flashes and is
then illuminated continuously. A Check
Control message is displayed. It may not
be possible to identify tire pressure losses.
Measure
▷ A wheel without wheel electronics is
mounted: have the wheels checked, if
needed.
▷ Fault caused by systems or devices with the
same radio frequency: after leaving the area
of the interference, the system automatically
becomes active again.
▷ For tires with special approval: the system
was unable to complete the reset. Perform a
system reset again.
▷ Tire Pressure Monitor malfunction: have the
system checked by a manufacturer service
center or another qualified service center or
repair shop.
MOBILITY
337