Tyre pressure monitoring system
Tyre pressure monitoring system
The tyre pressure warning lamp
TYRE PRESSURE MONITORING
(TPM) SYSTEM
illuminates when one or more of the
tyres is significantly under-inflated
or a non TPM system wheel and tyre is in use.
The TPM system provides a low
pressure warning and does not
This will be accompanied by a
graphic and message in the
message centre. The graphic
and message will indicate which
of the TPM system tyres needs
attention.
re-inflate your tyres. Tyre pressures
should be checked regularly using an
accurate pressure gauge when cold.
The TPM system can NOT register
damage to a tyre. Regularly check the
condition of your tyres, especially if
the vehicle is driven off-road.
You should stop and check the
tyres as soon as possible and inflate them to
the recommended pressure. See 212,
CHECKING THE TYRE PRESSURES.
When inflating tyres, take care not to
bend or damage the TPM system
valves. Always ensure correct
alignment of the inflation head to the
valve system.
TPM SYSTEM MESSAGES
When a problem is detected, the warning lamp
will illuminate or flash. A text message will be
displayed. Until the fault is rectified, the
warnings will be repeated each time the
ignition is switched on.
Note: Different types of tyre may affect the
performance of the TPM system. Always
replace tyres in accordance with
recommendations.
Driving through variable climatic conditions
can affect tyre pressures. This in turn may
promote intermittent TPM system warnings.
If all four road wheels and tyres are replaced
with non TPM system wheels, e.g., a set of
winter wheels and tyres, the message TYRE
PRESSURE MONITORING UNAVAILABLE will
be displayed. When the original wheels are
refitted, the vehicle will need to travel a short
distance before the TPM system recognises the
wheel sensors. At that point, TYRE PRESSURE
MONITORING AVAILABLE will be displayed.
The system will automatically recognise any
changes in wheel positions. The vehicle must
be stationary for 15 minutes during a wheel
change to allow the system to detect the
change. See 208, CHANGING A ROAD WHEEL.
After driving above 25km/h (18mph), any
deflation warning should clear within a few
minutes.
1. TPM system external metal lock nut and
valve.
2. Non TPM system rubber valve.
The TPM system constantly monitors the tyre
pressure in each wheel. Temporary use spare
tyres (when fitted) are not monitored.
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