See also:

Passenger Airbag Status Indicator
If the vehicle has one of the indicators pictured in the following illustrations, then the vehicle has a passenger sensing system for the right front passenger position unless there is an airbag off s ...

Engine Coolant Temperature Warning Light
The engine coolant temperature warning light comes on briefly when the vehicle is started. If it does not, have the vehicle serviced by your dealer. If the system is working normally, the indicator ...

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 vehic ...