Low Voltage "warning", next day, 59 error codes

oxking1 · 2025-09-29T15:30:51-0400

So the title says it. Randomly got a low voltage warning. battery is less than 2 years old. alternator should still be good, but I suppose it could be an issue.
but just tried to start it up to go pick up my kids from school and it started fine, I went to back out and it shifted to reverse, and then as I started moving, it stopped on its own, back into park on its own. none of the electrics were working, screen, windows, chargers, ac, nothing.
abs warning came up, and then every other error code it could throw seemed to come up.
ran my diagnostic after having to jump it to start it again and scan it, 59 error codes.
it looks like the majority of them have something to do with voltage, most of them saying low voltage. but this just randomly happened and its not working at all now.
this ever happen to anyone else?

Tin Foil Hat · 2025-09-29T20:15:56-0400

No they won't. It always has to have a full charge or the load test doesn't work. If it won't fully charge or the load test fails then you get a new battery.

Tin Foil Hat · 2025-09-29T15:37:53-0400

Sounds like a bad battery. Have it load tested and if not 100% then replace it. If this is on a V6 2017 and up then replace both batteries. Make sure the cables are tight on the battery too.

oxking1 · 2025-09-29T20:01:46-0400

Yeah. I had pulled the battery and checked it before taking it to auto zone(since it’s such a pain to get the dang thing out) and it was showing 10v, before it was 8.6 to 9. They are charging it over night though, they wouldn’t let me just replace it, even though it’s within its warranty.

Low Voltage "warning", next day, 59 error codes

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