268 Tires and wheels
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
pressure, 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 indicator to indicate when
the system is not operating properly. The
TPMS malfunction indicator is combined with
the low tire pressure telltale. When the sys
tem detects a malfunction, the telltale will
flash for approximately one minute and then
remain continuously illuminated. This se
quence will continue upon subsequent vehicle
start-ups as long as the malfunction ex ists.
When the malfunct ion indicator is illuminat
ed, the system may not be able to detect or
signal low tire pressure as intended . TPMS
malfunctions may occur for a variety of rea
sons, including the installation of replace
ment or a lternate tires or whee ls on the vehi
cle 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 re placement or alternate tires and wheels allow
the TPMS to continue to function properly.
Tire pressure indicator appears
App lies to vehicles: with tire pressure monitoring system
The tire pressure indicator in the instrument
cluster informs you if the tire pressure is too
low or if there is a system malfunction .
Fig. 209 Display: underinflation warning
Fig. 210 Disp lay: System malfunction
Using the ABS sensors, the tire pressure moni
toring system compares the tire tread cir cum
ference and vibration character istics of the in
dividua l tires. If the pressure decreases in one
o r more t ires, this is ind icated in the instru
ment cluster with a warning symbol
[«E and a
message ~
fig. 209.
The tire pressure monitoring system must be
reset via MMI each t ime the press ures are ad
justed (e.g. when switching between partial
and full load pressure) or after changing or re
placing a tire on your vehicle
c::> page 269. The
TPMS indicator only monitors the tire pres
sure that you have previously stored. You can
find the recommended tire pressures for your
vehicle on the label on driver's side 8-pillar
c::> page 2 53.
Tire tread circumference and vibration charac
teristics can change and cause a tire pressure
warning if:
- the tire pressure in one or more tires is too
low,
- the tire has structural damage ,
- the tire pressure was changed, wheels rotat-
ed or replaced but the TPMS was not reset
c::> page269.
Warning symbols
[tE Loss of pressure in at least one tire c::> ,1,. .
Check the tire or tires and replace or repair if
necessary. The indicator light
[tE in the instru
ment cluster also illuminates
c::> page 11.
Check/correct the pressures of all four tires
and reset TPMS via MMI.
119;~, < T ire Pressure Monitoring System) Tire
pressure! System malfunction .
IJJ,-
