See also:

Jump Starting
For more information about the vehicle battery, see Battery . If the battery has run down, try to use another vehicle and some jumper cables to start your vehicle. Be sure to use the following step ...

Safety Locks
The rear door safety locks prevent passengers from opening the rear doors from inside the vehicle. Press to activate the safety locks. The indicator light will illuminate. This switch also di ...

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 ...