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:
Removing the Flat Tire and Installing the Spare Tire
Take off the wheel cover or center cap, if the vehicle has one, to reach the wheel bolts.
1. Do a safety check before proceeding. See If a Tire Goes Flat for more information.
2. Turn the wh ...
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.
...
USB Port
For vehicles with a USB port, the following devices may be connected and controlled by the infotainment system:
► iPods
► PlaysForSure Devices (PFD)
► USB Drives
► Zunes ...