See also:

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 ...

When the Light Is On Steady
This indicates that one or more of the tires are significantly underinflated. A Driver Information Center (DIC) tire pressure message may also display. See Vehicle Messages  for more informati ...

Easy Exit Driver Seat
This feature moves the seat rearward allowing the driver more room to exit the vehicle. To activate, place the ignition in OFF and open the driver door. If the driver door is already open, pl ...