See also:

Tachometer
The tachometer displays the engine speed in revolutions per minute (rpm). ...

Vehicle Security
This vehicle has theft-deterrent features; however, they do not make it impossible to steal. ...

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 ...