Service All-Wheel Drive Light
This light should come on briefly when you turn on the ignition, as a check to show you it is working.
The service all-wheel drive light comes on to indicate that there may be a problem with the drive system and service is required. Malfunctions can be indicated by the system before any problem is apparent, which may prevent serious damage to the vehicle. This system is also designed to assist your GM dealer in correctly diagnosing a malfunction.
See also:
Tire Messages
TIRE PRESSURE LOW ADD
AIR TO TIRE
On vehicles with the Tire Pressure
Monitor System (TPMS), this
message displays when the
pressure in one or more of the
vehicle's tires is low.
The low ti ...
Traction Control System (TCS)
Warning Light
For vehicles with a
Traction Control System
(TCS) and StabiliTrak®
warning light, this
light comes on briefly
when the engine is started.
If it does not, have the vehicle serviced by you ...
Playing the Radio
(Power/Volume): Press to turn
the system on
and off.
Turn clockwise or counterclockwise to increase or
decrease the volume.
The radio goes to the previous volume setting when the
radio is t ...