See also:

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 ...

End a Call
Push . System responds: “Call ended.” ...

PARKING ASSIST OFF
After the vehicle has been started, this message displays to remind the driver that the URPA system has been turned off. This message also displays when there is a temporary condition causin ...