Security Light - Chevrolet 2003 Astro Owner's Manual

Security Light Service All-Wheel
This light will come on
briefly when you turn the
ignition key to START.
SERVICE
AWD
Drive Light
This light should come on
briefly when you turn on
the ignition, as a check to
show you it is working.
The light will stay on until the engine starts. If the light The SERVICE AWD light comes on to indicate that
flashes, the Passlock@ System has entered a tamper
there may be a problem with the drive system and
mode. If the vehicle fails to start, see Passlock@
service is required. Malfunctions can be indicated by the
on page 2- 18.
system before any problem is apparent, which may
If the light comes on continuously while driving and also designed to assist your service technician in
stays on, there may be a problem with the Passlock@ correctly diagnosing a malfunction.
System. Your vehicle will not be protected by Passlock@,
and you should see your GM dealer.
prevent serious damage to the vehicle. This system is
3-35