BMW i4 GRAN COUPE 2022, Руководство пользователя

Страница: 315 / 368

The tire inflation pressure is reduced when the
tire temperature falls again.
These circumstances may cause a warning
when temperatures fall very sharply.
Following a temperature-related warning, the
target pressures are displayed on the Control
Display again after a short distance.
Sudden tire pressure loss
The system cannot indicate sudden and seri-
ous tire damage caused by external circum-
stances.
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 al-
though 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 auto-
matically 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 dealer's service
center or another qualified service center or
repair shop.
Declaration according to NHTSA/
FMVSS 138 Tire Pressure Monitoring
System
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 in-
flation 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 moni-
toring system (TPMS) that illuminates a low
tire pressure telltale when one or more of your
tires is significantly under-inflated. 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 under-in-
flated tire causes the tire to overheat and can
lead to tire failure. Under-inflation 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 substitute
for proper tire maintenance, and it is the driv-
er's responsibility to maintain correct tire pres-
sure, even if under-inflation has not reached
the level to trigger illumination of the TPMS
low tire pressure telltale. Your vehicle has also
been equipped with a TPMS malfunction indi-
cator to indicate when the system is not oper-
ating properly. The TPMS malfunction indica-
tor is combined with the low tire pressure
telltale. When the system detects a malfunc-
tion, the telltale will flash for approximately one
minute and then remain continuously illumi-
nated. This sequence will continue upon sub-
sequent vehicle start-ups as long as the mal-
function exists. When the malfunction indicator
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
Seite 315
Wheels and tires MOBILITY
315
Online Edition for Part no. 01405A546C7 - II/22