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:
Engine Cooling System Messages
A/C OFF DUE TO HIGH ENGINE TEMP
This message displays when the engine coolant becomes hotter than the normal operating temperature.
To avoid added strain on a hot engine, the air conditioning compre ...
Programmable Automatic Door
Locks
Your vehicle is programmed so that, when the doors are
closed, the ignition is on, and the shift lever is moved out
of P (Park), all the doors will lock. The doors will unlock
every time you sto ...
Hazard Warning Flashers
The hazard warning flashers warn others.
They also let police know you have a problem.
Your front and rear turn signal lamps will flash on
and off.
The hazard warning
flasher button is loca ...