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WHEELS AND TYRES
* Option/accessory, for more information, see Introduction.
346
Tyre pressure monitoring*
3
The tyre pressure monitoring system warns with
an indicator symbol in the combined instrument
panel when the pressure is too low in one or
more of the car's tyres.
There are two systems for tyre pressure monitor-
ing, TM (Tyre Monitor) and TPMS (Tyre Pressure
Monitoring System)
4
. In the event of uncertainty
about which system the car has, open the menu
system MY CAR and search for the car's set-
tings:
•
The
Tyre monitor menu is used if it is TM.
•
The
Tyre pressure menu is used if it is
TPMS.
For certain markets the tyre pressure monitoring
is standard in accordance with legal require-
ments. The system does not replace normal tyre
maintenance.
Indicator symbol for tyre pressure monitoring.
Related information
•
Tyre monitoring (TM)* (p. 346)
•
Tyre pressure monitoring system (TPMS)* -
general information (p. 348)
Tyre monitoring (TM)*
7
The TM (Tyre Monitor) system senses tyre rota-
tion speed in order to determine whether the
tyres have the correct tyre pressure.
System description
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.
The system does not replace normal tyre mainte-
nance.
Messages
If the tyre pressure is too low then an indicator
symbol (
) illuminates in the combined instru-
ment panel and one of the following messages is
shown:
•
Tyre pressure low Check, adjust and
calibrate
•
Tyre pressure system Service required
•
Tyre pressure system Currently
unavailable
IMPORTANT
If a fault occurs in the TM system the indica-
tor symbol
in the combined instrument
panel will flash for approx. 1 minute and then
illuminate with a constant glow. A message is
also shown in the combined instrument panel.
3
Standard in certain markets.
4
Applicable only to the factory-built S60/V60 Polestar with 20-inch wheels and Brembo brakes at the front.
7
Standard in certain markets.
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