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 ...

Transferring Service

Push to request account transfer eligibility information. The Advisor can assist in canceling or removing account information. If OnStar receives information that vehicle ownership has changed, ...

See also:

Manual Operation
This system offers a full complement of manual override features, which consist of Blower Preferred Automatic, Mode Preferred Automatic, or Blower and Mode Preferred Automatic. This means the op ...

Using HFL
HFL Buttons HFL Talk button - Press and release to give a command or answer a call. HFL Back button - Press and release to end a call, go back to the previous command, or cancel the comm ...

Service The Parksense Rear Park Assist System
When the ParkSense Rear Park Assist System is malfunctioning, the instrument cluster will actuate a single chime, once per ignition cycle, and it will display the “SERVICE PARK ASSIST SYSTEM†...