See also:

Using Universal Home Remote
Press and hold the appropriate button for at least half of a second. The indicator light will come on while the signal is being transmitted. ...

Once a Month
• Tire inflation check. See Inflation - Tire Pressure. • Tire wear inspection. See Tire Inspection and Rotation. ...

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 ...