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:
Door Unlock Options
This allows selection of which doors
will unlock when pressing on the
RKE transmitter.
Press SELECT when Door Unlock
Options is highlighted. Turn the
Menu knob to select All Doors or
Drive ...
Reporting Safety Defects to General Motors
In addition to notifying NHTSA
(or Transport Canada) in a situation
like this, please notify General
Motors.
Call 1-800-521-7300, or write:
Buick Customer Assistance Center
P.O. Box 33136
...
Exterior Care
Cleaning Exterior Lamps/ Lenses
Use only lukewarm or cold water, a soft cloth, and a car washing soap to clean exterior lamps and lenses.
Follow instructions under “Washing the Vehicle” later in ...
