Operation Manual

221Drive Control Systems
Deflation Detection System
(DDS = Deflation Detection
System)
3
The deflation detection system
continuously monitors the speed of all
wheels while driving. If a tyre loses
pressure, it grows smaller and rotates more
quickly than the other wheels. If the system
detects a difference in speed, control
indicator
w illuminates red.
Stop immediately and check tyre pressure.
Mount the spare wheel if necessary
– pages 254, 257.
The system is operational when the ignition
is switched on and can detect pressure loss
from a speed of 20 mph (30 km/h).
Control indicator
w
If control indicator
w illuminates red while
driving, there is a loss of pressure. Stop
immediately and check tyre pressures. A
maximum speed of 50 mph (80 km/h) is
permitted for run-flat tyres 3. Observe the
information on page 235.
If control indicator
w illuminates yellow,
there is a fault in the system. Have the
cause of the fault remedied. We
recommend that you consult your Vauxhall
Authorised Repairer. The system’s
integrated self-diagnostics allows faults to
be quickly remedied.
The control indicator flashes three times
when the system is initialising.
Tyre pressure – pages 232, 333.
System initialisation
After correcting tyre pressure or changing
a tyre/wheel, the system must be initialised:
With the ignition switched on, press the
DDS button for approx. 4 seconds. Control
indicator
w flashes 3 times. The system is
operational after driving a certain
distance.
Only initialise the system if all tyres have
the prescribed pressure.
9 Warning
The deflation detection system does not
replace manual checks with a suitable
gauge.
Check tyre pressures at least every
14 days and prior to any long journey; the
tyres should be checked when cold. Don’t
forget to check the spare 3.