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:
Finding a Category (CAT) Station
(XM™ Satellite Radio Service Only)
CAT (Category): The radio may have the CAT button
feature. To select and find a desired category:
1. Press the BAND button until the XM frequency
displays. Press the CAT button to display the
c ...
Lane Departure Warning (LDW)
The vehicle may have a Lane Departure Warning (LDW)
system. Read this entire section before using the system.
WARNING:
The Lane Departure Warning (LDW) system does
not steer the vehicle and is o ...
Passenger Sensing System
The vehicle has a passenger sensing system for the right front passenger position. The passenger airbag status indicator will be visible on the instrument panel when the vehicle is started.
The wor ...
