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Originally Posted by Klementine
I have a 2003 Yukon SLE and need to reprogram a keyless remote. I found one thread that says 2000 and newer, but I want to make sure.
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Klementine: To program a 2003 Yukon:
You may enter up to 4. You must have all in posession at the time of programming. (up to 4). All previous codes will be erased.
1. Close all vehicle doors.
2. Put the key in the ignition.
3. Push and hold the UNLOCK button on the driver's door (do not let go, yet).
4. Turn the ignition as far ON as you can without starting the vehicle, turn to OFF, then back as far as you can to ON, and back to OFF.
5. Release the UNLOCK button. ( the vehicle's locks should lock and unlock automatically at this point)
6. Hold the LOCK and UNLOCK buttons on the transmitter at the same time, until the locks automatically lock and unlock. (this may take up to 30 seconds)
7. Repeat step # 6 for all additional remotes.
8. Turn the ignition to the ON position to exit the programming mode.