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 OnStar Additional Information, and an Advisor can run a check.

    See also:

    Removing Tools
    The tools needed to remove the spare tire are located in the storage compartment on the driver side, at the rear of the vehicle. 1. Open the jack storage compartment by pulling on the latch tab, loca ...

    Park Tilt Mirrors
    If the vehicle has the memory package, the outside mirrors have a park tilt feature. This feature tilts the outside mirrors to a preselected position when the vehicle is in R (Reverse). This allows th ...

    Compressed Audio or Mixed Mode Discs
    The radio can play discs that contain both uncompressed CD audio and MP3/WMA files. If both formats are on the disc, the radio plays both file formats in the order in which they were recorded to the d ...