Sunshine831

I was experiencing a common electrical issue with my 2007 Sierra 1500 Denali. Intermittently all electrical would short out and all dashboard electrical would flash and navigation/radio would turn off then on. Also, truck would occasional not start. No power, completely dead. I would wiggle battery cable connection and truck would start right up. I had a mechanic re-solder a new battery connection on positive cable and no issuers for last 20K miles. Hope this helps someone.