See also:

Cellular and GPS Antennas
Avoid placing items over or near the antenna to prevent blocking cellular and GPS signal reception. Cellular reception is required for OnStar to send remote signals to the vehicle. ...

Transmission
Driver Shift Control (DSC) The DSC switch is located on the shift lever. To enable the DSC feature: 1. Move the column shift lever to the M(Manual) position. The Driver Information Center (DIC) ...

Digital Speedometer
The speedometer shows how fast the vehicle is moving in either kilometers per hour (km/h) or miles per hour (mph). The speedometer cannot be reset. ...