See also:

Security Light
This light will come on briefly when you turn the key toward START. The light will stay on until the engine starts. If the light flashes, the Passlock® system has entered a tamper mode. If t ...

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. ...

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. ...