2015 sierra 1500 electrical problems when braking need help

[Gmc fo life]

I have a 2015 gmc sierra 1500 heres my issue

 

When im driving everything works great but sometimes the truck feels like its pushing harder and I started realizing that the brakes were being applied by themselves not alot but enough to tell. I usually fix this by going under the brake and pressing up and then it drives normal again. It does this randomly. My other issue is that when I brake sometimes not always the radio my dash my ac basically all my electronics turn off for a second or two. I'm really worried about this issue and don't know what it could be I heard about cleaning a ground cable that goes to the right and I cleaned it but no change. Hopefully you guys know what wrong with the truck ill take any advice I can

[djHaystack]

2011 GMC Sierra 1500 and I have the same issue. When I brake my radio will go off and I'll get stabillitrak and ABS warnings. Sometimes when I shut off and restart the truck the problem goes away for a while, sometimes it doesn't.

[djHaystack]

2011 GMC Sierra 1500 and I have the same issue. When I brake my radio will go off and I'll get stabillitrak and ABS warnings. Sometimes when I shut off and restart the truck the problem goes away for a while, sometimes it doesn't.