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:
Deleting Name Tags
The system uses the following commands to delete
name tags:
• Delete
• Delete all name tags ...
Braking in Emergencies
ABS allows the driver to steer and brake at the same time. In many emergencies,
steering can help more than even the very best braking. ...
Traction – AA, A, B, C
The traction grades, from highest to lowest, are AA, A, B, and C. Those grades
represent the tire's ability to stop on wet pavement as measured under controlled
conditions on specified governm ...