See also:

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

How to Inspect the Engine Air Cleaner/Filter
To inspect the air cleaner/filter, remove the filter from the vehicle and lightly shake the filter to release loose dust and dirt. If the filter remains covered with dirt, a new filter is re ...

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 ...