Electrical issues continuing on my 2009 C6 base. No codes. I am still at the battery. Cruising along on the interstate or back roads, no difference. Shaking real bad. It has happened 6 times since it started last week. First cruise incident, on the interstate it happened, got off, found a loose positive battery cable. Cleaned them, tighten em up, good to go issues. A few days and later, cruising the interstate it happens again. Get off, shut down the car, cables are tight, start the car back up, still doing it. Shut it down, start it again, it's gone. Good to go. OK. So off for a new battery. Get one, put it in, smooth sailing. I am a HAPPY GUY. But hold on. Fast forward to yesterday. IT HAPPENS AGAIN. There is no warning, no indication that it is going to happen again. I get off the interstate again, shut it down, start it, still doing it. Recheck the cables, the negative seems a little loose. Tighten it down, start it back up, no issues. Cruising back towards home, it happened three more times and yes, the cables are tight. I would get the warnings, shut it down once still doing it, seems like I shut it down again, it goes away. Made it home, re cleaned and tighten up all the connections even the starter connections. Let's see what happens. Before it makes a visit to the shop, anyone have ANY IDEAS?

 

You need to test the voltage output of the alternator. It sounds like it is beginning to fail.

 

You might try a code reader for that traction control light. check out the neg. cable from the battery to frame connections, also frame to engine ground connections. Have you changed or replaced any electrical components recently? Besides the battery.

 

By any chance did they test the old battery before you replaced it?

 

Just off the top, I think I would start checking ground connections to the chassis