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:
Removal and Installation of the Sealant
Canister
To remove the sealant canister:
1. Remove the plastic cover.
2. Unscrew the connector (B) from the canister (A).
3. Pull up on the canister (A) to remove it.
4. Replace with a new canister which ...
Playing from a USB (Radio with CD and Touchscreen)
A USB mass storage device or
Microsoft Transfer Protocal (MTP)
device can be connected to the
USB port.
The USB port is in the center
console.
The USB icon displays when the
USB device is ...
Hitches
Use the correct hitch equipment. See your dealer or a hitch dealer for assistance.
. The rear bumper on the vehicle is not intended for hitches. Do not attach rental
hitches or other bumper-type hi ...
