See also:

Safety Locks
The vehicle may have power safety locks or manual safety locks. Power safety locks will lock the rear windows and not allow the rear doors to be opened from the inside. Manual safety locks do not all ...

Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the v ...

Audio Steering Wheel Controls
If your vehicle has this feature, some audio functions can be adjusted at the steering wheel. They include the following: (OnStar®/Mute): If your vehicle has OnStar, press this button to i ...