Description here is vague you should have thrown a DTC. Sounds like something electrical. The last time I seen this was on a 09 Z that inexplicably died after driving at freeway/highway speed after diagnosis was found to be faulty battery and alternator. This issue can be diagnosed and repaired this is not a sign to purchase a C8 Corvette. Depending on your climate batteries can have a short life.
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Mr. Clean
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