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:
Using Universal Home Remote
Press and hold the appropriate button for at least
half of a second. The indicator light will come on
while the signal is being transmitted. ...
Safety Warnings and Symbols
Warning Messages found on vehicle labels and in this
manual describe hazards and what to do to avoid
or reduce them.
Danger indicates a hazard with a high level of risk
which will result in ser ...
Other Warning Devices
If you carry reflective triangles, you can set them up
at the side of the road about 300 feet (100 m)
behind your vehicle. ...