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:
System stays in background
While I only got to drive the 2012 LaCrosse for a little over an hour, I was
impressed at how utterly unimpressive the eAssist was.
Everything works in the background. There's no electric motor wh ...
Window Messages
OPEN, THEN CLOSE DRIVER
WINDOW
This message is displayed when the
window needs to be reprogrammed.
If the vehicle's battery has been
recharged or disconnected, you will
need to reprogram eac ...
Using Universal Home Remote
Press and hold the appropriate button for at least
half of a second. The indicator light will come
on while the signal is being transmitted. ...
