See also:

Trip A or Trip B
Displays the current distance traveled since the last reset for each trip odometer in either kilometers (km) or miles (mi). Both odometers can be used at the same time. Reset each trip odom ...

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 ...

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