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:
Cupholders
There are two cupholders in the center console with a removable liner. To remove
the liner, lift up on the notch on the underside of the rear of the cupholder.
Rear Seat
There are two cupholders ...
Brake System Warning Light
When the ignition is on, the brake system warning
light will come on when you set your parking
brake. The light will stay on if your parking brake
does not release fully. If it stays on after your
...
What to Add
If the vehicle has DOT 3 brake fluid, as indicated on the reservoir cap, use
only new DOT 3 brake fluid from a sealed container. See Recommended Fluids and Lubricants
.
If the vehicle has DOT 4 b ...
