See also:

Safety Locks
The rear door safety locks switch is on the instrument panel. Rear door safety locks prevent passengers from opening the rear doors from inside the vehicle. Press to activate the safety locks. ...

Overview
All-new 2010 GMC Terrain makes its world debut at the 2009 New York International Auto Show. The GMC Terrain is a five-passenger crossover SUV that blends bold styling with fuel efficiency and pre ...

OnStar Overview
If equipped, this vehicle has a comprehensive, in-vehicle system that can connect to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic Services. The OnStar system s ...