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:
OnStar®
If equipped, this vehicle has a comprehensive, in-vehicle system that can connect
to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic
Services. See OnStar Overview&nb ...
Weight of the Trailer
How heavy can a trailer safely be?
For a vehicle with a V6 engine, it
should never weigh more than
454 kg (1,000 lbs). But even that
can be too heavy.
It depends on how the rig is used.
For e ...
Sheet Metal Damage
If the vehicle is damaged and requires sheet metal
repair or replacement, make sure the body
repair shop applies anti-corrosion material to parts
repaired or replaced to restore corrosion
protecti ...
