I would absolutely check the grounds on the firewall. I have a 2015 Tahoe LTZ that was experiencing the same issue, albeit with some other electrical issues. I replaced several electrical components (alternator, battery cables, etc) myself before finally submitting and taking it to the...
I have a 2015 Tahoe LTZ and was having the same exact problems you’re experiencing for a couple years. Crazy codes, flashing infotainment screen, it would randomly die & start back up on its own, etc… Replaced the battery, positive and negative battery cables, replaced the alternator… each fix...
I have a 2015 Tahoe that was doing the exact same thing. EXACTLY. I replaced the negative cable and that helped for a while, but eventually it would start dying randomly again, not start sometimes even though the battery was fully charged, give me funky stabilitrak messages, display would black...
I have a 2015 and was having the exact same issues…hit the brakes during a turn and it would die, then start right back up. After some exhaustive research, I found where someone suggested replacing the pos battery cable due to corrosion buildup inside the cable. It’s the short, 6-inch cable...
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