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:
Leaving the Vehicle with the Engine Running
WARNING
It can be dangerous to leave the vehicle with the engine running. The vehicle
could move suddenly if the shift lever is not fully in P (Park) with the parking
brake firmly set. And, if ...
Manual Transmission Fluid
It is not necessary to check the manual transmission fluid level.
A transmission fluid leak is the only reason for fluid loss. If a leak occurs, take the vehicle to your dealer service department and ...
Lock Feedback
Press the customization button until LOCK
FEEDBACK: BOTH appears in the display.
To select your preference for the feedback you
receive when locking the vehicle with the Remote
Keyless Entry (RK ...
