Brake System - Vauxhall ASTRA Owner's Manual

222 Driving and operation
General information
The tyre pressure monitoring system does
not function when the emergency or a
spare wheel not fitted with a pressure
sensor is used, and the control indicator
illuminates yellow. The tyre pressure
display shows –.–. The tyre pressure is then
monitored by the deflation detection
system, see page 218.
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, see page 218.
Sensors for the tyre pressure monitoring
system can be fitted on request by a
workshop.
When manually checking tyre pressure with
w
a pressure gauge, screw the adapter onto
the valve. Tyre pressure, see page 337.
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.
Vauxhall-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.

Brake system

The brakes are an important factor for
traffic safety.
To improve effectiveness, do not brake
unnecessarily hard for the first
125 miles (200 km) after new brake pads
have been fitted.
Brake pad wear must not exceed a
specified limit. Regular maintenance as
detailed in the Service Booklet is therefore
of the utmost importance for traffic safety.
Have worn brake pads replaced by a
workshop.
Tested and approved pads give optimum
braking performance.
Brake pads worn to the minimum level
cause grinding noises. You may continue
to drive but have the pads replaced as
soon as possible. To change the pads,
contact a workshop.