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Old 09-01-2022, 10:12 AM   #11
ctrlz


 
Drives: 2017 2SS, 50th pkg, M6, MRC, NPP
Join Date: Jan 2016
Location: Ocean City, NJ
Posts: 3,555
Quote:
Originally Posted by Peyton7392 View Post
Bad alternator maybe? I noticed on my way to work today, on the interstate I didn’t have any lights for 10-15min, but I did a small pull and changed lanes and it made service stabilitrak flash, no lights again after I let off and went back to cruise.
Bad alternator is a possibility, particularly if you have a bad diode and AC is going out. This can be tricky to detect, but maybe modern all-in-one alternator testers pick this up. If there is a bad diode you can get unregulated voltage spikes at higher rpm's.
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