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Old 05-17-2012, 09:25 PM   #9
The Stig
knows 2 facts about ducks
 
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Drives: ...and they're both wrong
Join Date: Aug 2009
Location: The HMS Invincible
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Quote:
Originally Posted by onelapdoc View Post
Actually asked my service manager about this today. He said there is a separate dedicated chip that is counting the last 10 flashes. If one is significantly different it is permanently recorded. The only way to delete that is to change the entire Module.....which supposedly GM has to do. He also said he had heard that the onstar system would flag to GM if you Significantly changed the programing on the '12. Truth? Fiction? I don't know
On the V8 yes, that is how the flash counter works. The V6 does not have a flash counter.

Onstar cannot "flag" your car nor can Onstar rat you out to GM/Chevy.

Quote:
Originally Posted by sycraft View Post
Any internal or performance related warranty claim now requires a copy of the latest flash from the computer to be sent up for review, so yes it will retain information if flashed back to stock, and yes they will flag your warranty.
see earlier comments about the V6 NOT having a flash counter
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