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:
Collision Damage Repair
If your vehicle is involved in a collision and it is
damaged, have the damage repaired by a qualified
technician using the proper equipment and quality
replacement parts. Poorly performed collis ...
Tire Pressure Light
For vehicles with the Tire Pressure Monitor System (TPMS), this light comes on briefly when the engine is started. It provides information about tire pressures and the TPMS.
When the Light Is On St ...
PhatNoise a segment first
Also available is the first-in-segment Mobile Digital Media Powered by
PhatNoise system. PhatNoise is a wallet-sized, 40-gigabyte hard drive that
installs in the Terraza's overhead rail system. Th ...
