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Old 03-03-2017, 05:28 PM
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Qsilver7 Qsilver7 is offline
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Originally Posted by oldskewel View Post
Question - before taking the diamond key apart, is it worth trying to reprogram all remotes? I would think that since all 3 other remotes work fine, and one works not at all, that it is not a problem on the car-side.
Give it a have nothing to lose and all to gain. Reinitializing all the remotes (as long as they're done during the same session)...will give all of them the new rolling code table from the GM. They will either all work...or the 2 that are working now...will still work...and the dead one will still be dead.

Good luck.

  • make sure all doors are closed
  • make sure all doors are UNLOCKED
  • only insert the 1st remote into the ignition
  • 2nd & 3rd remote...start on STEP 3 where you start pushing the buttons
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