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 Ajar Messages
DRIVER DOOR OPEN
This message may display when the driver door is open. Close the door completely.
HOOD OPEN
This message will display when the hood is open. Close the hood completely.
LEFT REAR D ...
High Voltage Devices and Wiring
WARNING!
Exposure to high voltage can
cause shock, burns, and even
death. The high voltage
components in the vehicle can
only be serviced by technicians
with special training.
High voltage ...
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