Heated Mirrors
For vehicles with heated mirrors:
The heated outside rearview mirrors turn on when the rear window defogger is on and help to clear fog or frost from the surface of the mirrors.
(Rear Window Defogger): This button
is on the climate control panel.
See “Rear Window Defogger” under Automatic Climate Control System on page 8‑3 for more information.
See also:
Auxiliary Roof-Mounted Lamp
If the vehicle has this feature, this button includes wiring provisions for a dealer or a qualified service center to install an auxiliary roof lamp.
This button is located on the overhead console. ...
LED Lighting
This vehicle has several LED lamps.
For replacement of any LED lighting assembly, contact your dealer. ...
Customer Assistance for Text Telephone (TTY) Users (U.S. and Canada)
To assist customers who are deaf, hard of hearing, or speech impaired and who use Text Telephones (TTYs), GMC has TTY equipment available at its Customer Assistance Center. Any TTY user can communicat ...