See also:

Underbody Maintenance
Use plain water to flush dirt and debris from the vehicle's underbody. Your dealer or an underbody car washing system can do this. If not removed, rust and corrosion can develop. ...

Unable to Connect to OnStar Message
If there is limited cellular coverage or the cellular network has reached maximum capacity, this message may come on. Push to try the call again or try again after driving a few miles into another ce ...

Reading Lamps
Press the button near each lamp to turn them on or off. For more information, see: • Dome Lamps on page 6‑5. • Instrument Panel Illumination Control on page 6‑5. ...