See also:

Speedometer
The vehicle's speed can be selected to display on the Driver Information Center (DIC) and the speedometer in either kilometers per hour (km/h) or miles per hour (mph). Telltales on the speedom ...

Four-Wheel-Drive Light
For vehicles equipped with the four-wheel-drive light, it comes on when a vehicle with a manual transfer case is shifted into four-wheel drive and the front axle engages. Some delay between the shi ...

Reactivation for Subsequent Owners
Push and follow the prompts to speak to an Advisor as soon as possible after acquiring the vehicle. The Advisor will update vehicle records and will explain the OnStar service offers and options ...