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:
Ride Control System Messages
ALL WHEEL DRIVE OFF
This message displays when the
All-Wheel Drive (AWD) System has
been turned off. See All-Wheel
Drive.
SERVICE ALL WHEEL DRIVE
SYSTEM
This message displays when there
i ...
PASS-Key® III+ Electronic
Immobilizer
See Radio Frequency Statement
for information regarding Part 15 of the Federal
Communications Commission (FCC) Rules and
RSS-210/211 of Industry and Science Canada. ...
Fuel Additives
To provide cleaner air, all gasolines in the United States are now required to contain additives that help prevent engine and fuel system deposits from forming, allowing the emission control system to ...