GM Service Manual Online
For 1990-2009 cars only

Object Number: 849605  Size: A2

If the vehicle has heated mirrors, the button to turn this function on or off is located on the climate control panel.

Press this button to warm the driver's and passenger's outside rearview mirrors to help clear them of ice, snow, and condensation.

If the vehicle has a rear window defogger, the heated mirrors will come on when this button is pressed. See "Rear Window Defogger" under Dual Automatic Climate Control System for more information.