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Message with low tire inflation
pressure
The warning lamp lights up yellow. A
message appears on the Control Dis-
play. In addition, an acoustic signal
sounds.
>There is a flat tire or a major loss in tire infla-
tion pressure.
>The system was not reset after a wheel
change and thus issues a warning based on
the inflation pressures initialized last.
Cautiously reduce speed to below 50 mph/
80 km/h. Avoid sudden braking and steering
maneuvers. Do not exceed a speed of 50 mph/
80 km/h.
If the vehicle is not equipped with run-flat
tires as provided at the factory, refer to
page249, do not continue driving. Continuing
to drive with a flat tire could cause severe acci-
dents.<
Continued driving with a flat tire
Possible driving distance with complete loss of
tire inflation pressure:
>With a light load:
1 to 2 persons without luggage:
Approx. 155 miles/250 km
>With a medium load:
2 persons, cargo area full, or
4 persons without luggage:
Approx. 95 miles/150 km
>With a full load:
4 or more persons, cargo area full:
Approx. 30 miles/50 km
Drive reservedly and do not exceed a
speed of 50 mph/80 km/h.
A loss of tire inflation pressure results in a
change in the handling characteristics, e.g.
reduced lane stability during braking, a longer
braking distance and altered self-steering prop-
erties.<
Vibrations or loud noises while driving can
indicate complete failure of the tire.
Reduce your speed and stop; otherwise, pieces
of the tire could come loose and cause an acci-dent. Do not continue driving, and contact your
BMW Sports Activity Vehicle Center.<
Message when not reset
The yellow warning lamp lights up. A
message appears on the Control Dis-
play.
The system is not reset, e.g. after a wheel
change.
Check the tire inflation pressure and reset the
system, refer to page102.
Malfunction
The yellow warning lamp flashes and
then lights up continuously. The tires
are displayed in gray on the Control
Display. No flat tire can be detected.
Display in the following situations:
>Malfunction:
Have the system checked
>If a wheel without TPM electronics is
mounted, e.g. a compact wheel
*
>Interference due to systems or devices that
use the same radio frequency:
The system automatically reactivates once
it is outside of the field of interference.
Explanation according to the NHTSA/
FMVSS 138 Tire Pressure Monitoring
Systems
Each tire, including the spare (if provided),
should be checked monthly when cold and
inflated to the inflation pressure recommended
by the vehicle manufacturer on the vehicle plac-
ard or tire inflation pressure label. (If your vehi-
cle has tires of a different size than the size indi-
cated on the vehicle placard or tire inflation
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 monitoring
system (TPMS) that illuminates a low tire pres-
sure telltale when one or more of your tires is
significantly underinflated. Accordingly, when
the low tire pressure telltale illuminates, you
should stop and check your tires as soon as
Technology for comfort, convenience and safety
104 possible, and inflate them to the proper pres-
sure. Driving on a significantly underinflated tire
causes the tire to overheat and can lead to tire
failure. Underinflation also reduces fuel effi-
ciency 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 driver's
responsibility to maintain correct tire pressure,
even if underinflation 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 indicator to indicate when
the system is not operating properly. The
TPMS malfunction indicator is combined with
the low tire pressure telltale. When the system
detects a malfunction, the telltale will flash for
approximately one minute and then remain con-
tinuously illuminated. This sequence will con-
tinue upon subsequent vehicle startups as long
as the malfunction exists. When the malfunc-
tion 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
replacement or alternate tires or wheels on the
vehicle that prevent the TPMS from functioning
properly. 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.
Lane departure warning*
The concept
On roads with lane markings, this system warns
you at speeds exceeding approx. 40 mph/
65 km/h when the vehicle is about to leave the
lane.
The steering wheel begins vibrating lightly.
The system does not issue a warning if the turn
signal is set before leaving the lane.
Switching on/off
Press button 1 on the steering wheel.
>On: lane markings 2 light up.
>Off: lane markings 2 go out.
The system can issue warnings at speeds
exceeding approx. 40 mph/65 km/h.
The state is stored for the remote control cur-
rently in use.
Display
1The system is activated.
2Arrows: at least one lane marking was
detected and warnings can be issued.
Issuing a warning
If the vehicle begins leaving the lane and a lane
marking has been detected, the steering wheel
begins vibrating.
If the turn signal is set before the lane is
changed, a warning is not issued.
Canceling a warning
The warning is canceled:
>Automatically after approx. 3 seconds.
>After the vehicle returns to its lane.
>During heavy brake application.
