See also:

Compass Recalibration
This display allows for calibrating the compass. See Compass on page 5‑6 for more information. ...

Cargo Cover
For vehicles with a cargo cover, use it to cover items in the rear of the vehicle. To remove the cover from the vehicle, pull both ends toward each other. To reinstall, place each end of the cover ...

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 ...