Opel Astra Owner's Manual page 213

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System initialisation
After a tyre or wheel change, the system
must be initialised: With the ignition on,
press the DDS button for approx.
4 seconds. Control indicator
3 times. The system is operational after
driving a certain distance.
Only initialise the system if all tyres have
the prescribed pressure (check when tyres
are cold).
General information
The tyre pressure monitoring system does
not function when the emergency wheel or
a spare wheel not fitted with a pressure
sensor is used, and the control indicator
lights yellow. The tyre pressure display
shows –.–. The tyre pressure is then
monitored by the deflation detection
system 3 206.
If a complete set of wheels without tyre
pressure control system sensors is mounted
(e.g. four winter tyres), no error message
will be displayed. The tyre pressure
monitoring system is not operational. The
tyre pressure of a set of wheels without
sensors is monitored by the deflation
detection system 3 206.
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flashes
Driving and operation
Sensors for the tyre pressure monitoring
system can be fitted on request by a
workshop.
When manually checking tyre pressure with
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a pressure gauge, screw the adapter onto
the valve. Tyre pressure 3 319.
On each tyre change, the valve inserts and
sealing rings for the tyre pressure
monitoring system must be replaced by a
workshop.
The use of commercially available liquid
filled run-flat systems or repair kits can
impair the function of the system. Opel-
approved systems can be used.
Radio transmitters (e.g. radio headphones,
walkie-talkies) operated in the area could
cause interference in the tyre pressure
monitoring system.
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