Quote:
Originally Posted by Sextondm
... Going to the dealer this morning to pick up our new key and have it programmed at which point we will have two working keys....
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Hopefully you took your old remote key with you. Because all remotes MUST be programmed during the same session in order for them all to work. Each time you reinitialize the remote keys...a new rolling code table is assigned to the keys by the GM.
Any remote key not programmed during the same session (see
STEP 6 in the instructions below)...will no longer have the latest rolling code table...thus will not lock/unlock & arm/disarm the vehicle using the remote buttons on the key (you'll have to insert the key manually into the driver's door lock to lock/unlock & arm/disarm the vehicle).
Only insert the 1st key into the ignition (and remove it in STEP 3 right before you start pressing the buttons). Do NOT insert the 2nd/3rd/4th remote key into the ignition. If you do, you will erase the programming of the previous key. Always start the programming of other remotes on STEP 3...where you start pressing the buttons.