OnStar Services

See also:

Battery Voltage
This display, available on some vehicles, shows the current battery voltage. If the voltage is in the normal range, the value will display. For example, the display may read Battery Voltage 1 ...

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 ...

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 st ...