OnStar

See also:

Increasing Speed While Using Cruise Control
If the cruise control system is already activated: - Press and hold the +RES button on the steering wheel until the desired speed is reached, then release it. - To increase vehicle speed in ...

Powertrain
The XLR's Northstar V-8 VVT is a 90-degree, DOHC, four-valves-per-cylinder engine featuring an aluminum block and cylinder heads, and a valvetrain configuration with roller finger followers. The e ...

Safety Locks (Sedan and Wagon)
The vehicle has rear door security locks. These prevent passengers from opening the rear doors from the inside. Lock Label shown The rear door security locks are located on the inside edge ...