WHEELS AND TYRES
Each tyre, including the spare tyre*, should be
checked once a month. When checking, the
tyre should be cold and have the air pressure
recommended by the car manufacturer speci-
fied on the tyre pressure label or in the tyre
pressure table. If the car has tyres of a differ-
ent size than that recommended by the manu-
facturer, find out what the correct air pressure
level is for these.
system fault indicator is combined with the
indicator symbol for low tyre pressure. When
the system detects a fault, the symbol in the
driver display will flash for about one minute
and then remain illuminated. This procedure
will be repeated when the car is started until
the fault has been rectified. When the symbol
is illuminated, the system's ability to detect or
warn of low tyre pressure may be affected.
Tyre pressure monitoring system*
The tyre pressure monitoring system3 gives a
warning with an indicator symbol in the driver
display when the pressure in one or more of
the car's tyres is too low.
This symbol illuminates to indicate
low tyre pressure. Check the tyre
pressure in the Car Status app in
the centre display.
As an extra safety feature, the car is equipped
with a tyre pressure monitoring system
(TPMS), which shows when the air pressure in
one or more tyres is too low. When the indica-
tor symbol for low air pressure is lit, stop and
check the tyres as soon as possible and inflate
to the correct air pressure.
A TPMS system fault can occur for several
reasons, such as after changing to a spare
tyre, or changing tyres or wheels that prevent
TPMS from functioning correctly.
If there is a fault in the system the tyre pres-
sure warning symbol flashes for approximately
one minute and then remains illuminated.
System description
Always check the indicator symbol for TPMS
after changing one or more tyres in order to
ensure the new tyre or wheel is working cor-
rectly with TPMS.
The tyre pressure monitoring system meas-
ures differences in rotation speed between the
different wheels via the ABS system in order
to be able to determine whether they have the
correct tyre pressure. If the tyre pressure is too
low, the tyre's diameter is changed and, as a
result, so is its rotation speed. By comparing
the tyres with each other the system can
determine whether one or more tyres have
pressure that is too low.
Driving with tyres that have tyre pressure that
is too low may cause the tyre to overheat,
which can cause a tyre failure. Low tyre pres-
sure also reduces fuel efficiency as well as tyre
service life, and can affect car handling and
stopping ability. Note that TPMS does not
replace regular tyre maintenance. It is the driv-
er's responsibility to maintain correct tyre
pressure, even if the limit for low tyre pressure
has not been reached so that the indicator
symbol illuminates.
To bear in mind
Always save a new tyre pressure in the
system after changing a wheel or adjust-
ing tyre pressure.
•
If you change to tyres of a different size to
the ones fitted at the factory, the system
must be reset by storing a new tyre pres-
sure for these tyres to avoid false warn-
ings.
•
General information on the tyre monitoring
system
In the information below, the tyre monitoring
system is referred to generically as TPMS.
If a spare wheel* is used, it is possible that
The car is also equipped with a TPMS system
fault indicator, which indicates when the sys-
tem is not functioning correctly. The TPMS
•
the tyre pressure monitoring system does
3
Indirect Tyre Pressure Monitoring System (ITPMS)
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* Option/accessory. 533
