Using the “Delete” Command
1. Press and hold 
for two seconds.
2. Say “Delete.” 3. Say the name tag you want to delete.
See also:
Adjusting the Brightness and Contrast of the Screen
To adjust the brightness and contrast of the screen, press the MENU button while the rear vision camera image is on the display.
Any adjustments made will only affect the rear vision camera screen.
...
A Transformative Engine
You might be thinking, "How can GMC's compact pickup feel like a muscle car?"
Well, there's more to it than stuffing a 5.3-liter V-8 under the hood, but that
engine goes a long way towar ...
Mixed-Band Presets
Each page can store six preset stations. The presets within a page can be from
different radio bands. To scroll through the pages, press the FAV button located
on the faceplate or the FAV screen b ...