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:

    All-Wheel Drive (AWD) System
    Your vehicle may have this feature. There is no lever or switch to engage or disengage the front axle. It is fully automatic and adjusts as needed for road conditions. Your vehicle has an active t ...

    Sewn-in Safety Belt Comfort Guide
    On vehicles with the sewn-in comfort guide, there is one guide for each outboard passenger position in the rear seat. To install a comfort guide to the safety belt: 1. Remove the guide from its st ...

    If the Off Indicator Is Lit for an Adult-Size Occupant
    If a person of adult size is sitting in the front outboard passenger seat, but the off indicator is lit, it could be because that person is not sitting properly in the seat. Use the following st ...