BMW X4 Owner's Manual page 338

MOBILITY
If a tire inflation pressure check is
required
Message
An icon with a Check Control message appears
on the Control Display.
Icon Possible cause
Inflation was not carried out accord‐
ing to specifications, e.g., the tire has
not been sufficiently inflated.
The system has detected a wheel
change, but no reset was done.
The tire inflation pressure has fallen
below the level of the last reset.
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. Check the tire pressure and correct as
needed.
2. Perform a system reset.
If the tire inflation pressure is too
low
Message
A yellow warning light is illuminated in
the instrument cluster.
In addition, an icon with a Check Control mes‐
sage appears on the Control Display.
Icon Possible cause
There is a tire pressure 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.
338
Wheels and tires
Online Edition for Part no. 01405A37CC6 - VI/21
Measure
1. Reduce the vehicle speed. Do not exceed a
speed of 80 mph/130 km/h.
2. At the next opportunity, for instance at a filling
station, check the tire inflation pressure in all
four tires and correct if necessary.
3. Reset the system.
If there is a significant tire pressure
loss
Message
A yellow warning light is illuminated in
the instrument cluster.
In addition, an icon with the affected tire appears
in a Check Control message on the Control Dis‐
play.
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. Check whether the vehicle is fitted with nor‐
mal tires or run-flat tires.
Run-flat tires are labeled with a circular icon
containing the letters RSC marked on the tire
sidewall.
Run-flat tires, refer to page 328.
3. Read the description on What to do in case of
a flat tire.
Actions in the event of a flat tire, refer to
page 339.