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Well if the lights and the radio to not work we need to look and see where we're losing power to begin with ,Checked to be sure the batteries fully charged and the cables are clean and tight where they attach to the battery and also where they attach to the Engine . This can also be caused by a faulty ground to the transmission control module using a scan tool tell me if you have communication both the PC M power control module and the TCM transmission control module
Attempted to jumpstart vehicle but didn't help. No power. This happened once before. Tow truck driver popped a small cover open that was about one cm. square located next to the gear shift and reset something. How do I do this?