Interior gauges , radio , blinkers etc... on a 2008 Yukon SLT ,

[Tony Olivera]

intermittently while driving these items flash , turn off and on . Sometimes when vehicle is off and want to turn it on , it's dead but only for a couple of seconds . What can be done to resolve this . It doesn't happen often , only once or twice while driving ???

 

[Fless]

Moved you here from the 2021+ forum.

 

[petethepug]

Classic symptoms of -\+ battery cable rotting from the inside out. Those rotten battery cables also create false DTC codes. Replace the cables first and foremost, then the diagnostics can begin.

Keep in mind the cable replacement may fix the symptoms your having.