OnStar Services

See also:

At Each Fuel Fill
Engine Oil Level Check Check the engine oil level and add the proper oil if necessary. Notice: It is important to check your oil regularly and keep it at the proper level. Failure to keep your ...

Compass Calibration
The compass can be manually calibrated. Only calibrate the compass in a magnetically clean and safe location, such as an open parking lot, where driving the vehicle in circles is not a danger. I ...

Timer
This display can be used as a timer. To start the timer, press SET/CLR while Timer is displayed. The display will show the amount of time that has passed since the timer was last reset, not i ...