BMW Z4 sDrive30i Owner's Manual page 74

System limits
Sudden tire damage
Sudden serious tire damage caused by
external influences cannot be indicated in ad‐
vance.◀
The system does not function properly if it has
not been reset, e.g., it may identify a tire as flat
in spite of the fact that the tire is filled to the cor‐
rect inflation pressure.
The system is deactivated and is unable to de‐
tect flat tires if a wheel not equipped with TPM
electronics has been mounted, e.g., a compact
wheel, or if TPM is experiencing temporary in‐
terference from other systems or devices that
use the same frequency.
Resetting the system
Reset the system after each correction of the
tire inflation pressure and after every tire or
wheel change.
Operating principle, refer to page
1. Start the engine, but do not start driving.
2. Lightly push button 1 in the turn indicator
lever up or down repeatedly until the appro‐
priate symbol appears in the display, ac‐
companied by the word "RESET".
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3. Press button 2 to confirm your choice of the
Tire Pressure Monitor. The following display
appears:
4. Press button 2 for approx. 5 seconds until
the reading shown below is displayed:
59.
5. Drive away.
After driving a few minutes, the set inflation
pressures in the tires are accepted as the
target values to be monitored. The system
reset is completed during your drive, and
can be interrupted at any time. When driving
resumes, the reset is continued automati‐
cally. The indicator lamp goes out after the
system reset is completed.
Low tire pressure message
1. Cautiously reduce the vehicle speed to be‐
low 50 mph/80 km/h. Avoid sudden braking
and steering maneuvers. Do not exceed a
speed of 50 mph/80 km/h.
The warning lamps come on in yellow
and red. In addition, a signal sounds.
There is a flat tire or substantial loss of
tire pressure.
Do not continue driving without run-
flat tires