Buick Regal: Diagnostic Information and Procedures

 Global Positioning System (GPS)

Obstruction of the GPS can occur in a large city with tall buildings; in parking garages; around airports; in tunnels and underpasses; or in an area with very dense trees. If GPS signals are not available, the OnStar system should still operate to call OnStar. However, OnStar could have d

 Front View Camera Module Learn

Calibration (without UGN) NOTE: Do NOT swap cameras between vehicles, it is not approved and a VIN mismatch will occur. The calibration process for the front view camera system is necessary when a front view camera module is replaced by a new one. This process is required anytime the module is rem