Diagnostics

OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the vehicle is equipped with the Tire Pressure Monitoring System. If a diagnostics check is needed between e-mails, push an Advisor can run a check., and an Advisor can run a check.

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    Map Data Updates
    The navigation map database is stored on a compact flash card. It is usable only in this type of navigation system, and will not function in other electronic devices. The map in the vehicle was ins ...

    Wagon
    To lower one or both of the rear seatbacks: 1. Pull on the lever, on the top outboard side of the seatback, to unlock the seatback. 2. Fold the seatback down. To return a seatback to the up ...

    Adaptive Forward Lighting (AFL) Light
    This light should come on briefly as the vehicle is started. If it does not come on, have the vehicle serviced by your dealer. This light comes on solid when there is a problem with the Adapti ...