Service All-Wheel Drive Light

This light should come

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:

    Certification Label
    Label Example A vehicle-specific Certification label is attached to the driver side center pillar (B-pillar). The label tells the gross weight capacity of the vehicle, called the Gross Vehicle Weig ...

    Lockout Protection
    This feature stops the power door locks from locking when the key is in the ignition and a door is open to protect you from locking your key in the vehicle. If the power lock switch is pressed w ...

    Adding Washer Fluid
    Open the cap with the washer symbol on it. Add washer fluid until the tank is full. See Engine Compartment Overview  for reservoir location. Notice When using concentrated washer fluid, ...