2 comments on “How To Program A GM Transponder key

  1. i have tried thee 30 minute gm key relearn procedure but vehicle did not start. can you give me any ideas on anything else to try? or how many times can i try this procedure?

    • Not sure if you had the doors closed. Should just be put the key in turn to the ON position ( don’t start it) wait for security light to go out then quickly remove the working key and insert the one you want to program and turn it to the ON position and wait for the light to go out and then turn off and remove key. wait 30 seconds or so and check to see if the new key works.

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