See also:

Heated Mirrors
(Rear Window Defogger): Press to heat the mirrors. See “Rear Window Defogger” under Dual Automatic Climate Control System for more information. ...

Turning the System On and Off
The system can be disabled through the Driver Information Center (DIC). See “Parking Assist” under Driver Information Center (DIC) for more information. URPA defaults to the on setting each ti ...

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 ...