High/Low-Beam Headlamps (Up-Level)

The high/low-beam headlamps on the up-level headlamp system are High Intensity Discharge (HID) and should be replaced at the dealer.

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    Safety Belts
    Refer to the following sections for important information on how to use safety belts properly: Safety Belts . How to Wear Safety Belts Properly . Lap-Shoulder Belt . Lower Anchors and Te ...

    Security Light
    The immobilizer light should come on briefly as the engine is started. If it does not come on, have the vehicle serviced by your dealer. If the system is working normally, the indicator light tu ...

    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 ...