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:
Tire Rotation and Required Services Every 12 000 km/7,500 mi
Rotate the tires, if recommended for the vehicle, and perform the following services.
See Tire Rotation .
Check engine oil level and oil life percentage. If needed, change engine
oil and filt ...
Rear Compartment Fuse Block
The rear compartment fuse block, if equipped, is located on the left side of
the trunk behind a cover.
The vehicle may not be equipped with all of the fuses, relays, and features shown.
...
Remote Recall
When on, this feature will recall the
current driver's last seat and outside
mirror positions upon unlocking the
driver door with the RKE, and
opening that door. The current driver
is identi ...
