See also:

Exterior Lamps Off Reminder
A warning chime will sound if the exterior lamp control is left on in either the headlamp or parking lamp position and the driver door is opened with the ignition off. ...

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 ...

Pairing
A Bluetooth-enabled cell phone must be paired to the in-vehicle Bluetooth system and then connected to the vehicle before it can be used. See the cell phone manufacturer's user guide for B ...