See also:

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 v ...

Tire Inspection and Rotation
We recommend that you regularly inspect your vehicle’s tires, including the spare tire, for signs of wear or damage. See When It Is Time for New Tires for more information. Tires should be ro ...

Playing from MEM
Playing Back a Previously Recorded CD Turn the TUNE knob to select a track if MEM is already playing from the previously recorded disc. 1. Select Recorded Disc List. 2. Select the disc. 3. S ...