217
Drive control systems
Picture no: 17018t.tif
Deflation Detection System
(
DDS)
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 –
see pages 249, 252.
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 231.
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 – see pages 228, 326.
Picture no: 17019t.tif
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
.