Vauxhall Astra GTC Owner's Manual page 180

The menu can be selected by the
buttons on the turn signal lever.
Press the MENU button to select the
Vehicle Information Menu X.
Turn the adjuster wheel to select the
tyre pressure monitoring system.
System status and small pressure
differences are displayed by
a warning message with the
corresponding tyre flashing in the
Driver Information Centre.
Furthermore considerable pressure
differences between the tyres on one
axle are displayed by a warning
message in the Driver Information
Centre.
Major pressure differences are
indicated additionally by the control
indicator w.
Vehicle care
Control indicator w 3 79.
Vehicle messages 3 86.
If the tyre pressure must be reduced
or increased, switch off ignition.
If a complete set of wheels without
sensors is mounted (e.g. four winter
tyres), a message is displayed in the
Driver Information Centre. The tyre
pressure monitoring system is not
operational. Retrofitting of sensors is
possible.
A spare wheel or temporary spare
wheel is not equipped with pressure
sensors. The tyre pressure
monitoring system is not operational
for these wheels. Control indicator w
illuminates. For the further three
wheels the system remains
operational.
The use of commercially available
liquid tyre repair kits can impair the
function of the system. Factory
approved repair kits can be used.
External high-power radio equipment
could disrupt the tyre pressure
monitoring system.
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