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Re: GM passkey III won't relearn to new TDM
Posted to Technical Discussion Forum on 5/16/2017 2 Replies

I suspect that this IMMO system is much like Chrysler's where as a code string is written to each key programmed by the immobilizer module. The procedure in Tech2 does not actually say copy and paste, but it does extract something from the original TDM, possib... Login to read more.

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