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:
Sensing System for Passenger Airbag
The passenger sensing system turns off the right front passenger frontal airbag and the seat-mounted side impact airbag under certain conditions. The driver airbags and roof-rail airbags are not aff ...
Tire Pressure Light
For vehicles with the Tire Pressure
Monitor System (TPMS), this light
comes on briefly when the engine is
started. It provides information
about tire pressures and the TPMS. ...
Tires
Every new GM vehicle has high-quality tires made by a leading tire manufacturer.
See the warranty manual for information regarding the tire warranty and where to
get service. For additional inform ...
