See also:

Starter Switch Check
WARNING! When you are doing this inspection, the vehicle could move suddenly. If the vehicle moves, you or others could be injured. 1. Before starting this check, be sure there is enough r ...

Remote Recall
When on, this feature will recall the current driver's last seat and outside mirror positions upon unlocking the driver door with the RKE, and opening that door. The current driver is identi ...

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 ...