How to Program a 2021 GMC Yukon Ignition Smart Chip Key Transponder

Step by Step How to Programming Instructions:

To program a new transmitter to the vehicle when there is one recognized transmitter:

1. Ensure the vehicle is off.
2. Have both the recognized and new transmitters with you.
3. Insert the vehicle key into the key cylinder located above the license plate.
4. Open the hatch/trunk.
5. Turn the key five times within five seconds.
6. The Driver Information Center (DIC) displays “READY FOR FOB #2, 3, or 4”.
7. Place the new transmitter in the glove box transmitter pocket with the buttons facing the passenger side.
8. A beep sounds once programming is complete. The DIC displays “READY FOR #3 or 4” or “MAXIMUM NUMBER OF FOBS LEARNED”.
9. To program additional transmitters, repeat Step 7. Press ACC on the ignition switch if programming is complete.
10. Press Unlock on each newly programmed transmitter to complete the process.

Programming without a Recognized Transmitter:

This procedure requires three ten-minute cycles to complete the programming process. United States owners can program a new transmitter to their vehicle when a recognized transmitter is not available. Canadian owners must see their dealer/retailer for programming new transmitters when two recognized transmitters are not available.

1. Ensure the vehicle is off.
2. Place the new transmitter in the glove box transmitter pocket with the buttons facing the passenger side.
3. Insert the vehicle key into the key cylinder located above the license plate.
4. Open the hatch/trunk.
5. Turn the key five times within five seconds.
6. The DIC message displays “OFF – ACCESSORY TO LEARN”.
7. Press ACC on the ignition switch.
8. The DIC reads “WAIT 10 MINUTES” and counts down to zero.
9. The DIC displays “OFF – ACCESSORY TO LEARN” again.
10. Press ACC on the ignition switch.
11. Steps 8, 9, and 10 will be repeated two more times.
12. A beep sounds and the DIC reads “READY FOR FOB #1”. All previously known transmitter programming has been erased.
13. A beep sounds once programming is complete. The DIC displays “READY FOR FOB #2”. To program additional transmitters, take transmitter 1 out of the transmitter pocket and place transmitter 2 in the pocket. Up to four transmitters can be programmed. The DIC then displays “MAXIMUM NUMBER OF FOBS LEARNED” and exits the programming mode. Press ACC on the ignition switch to complete the process.
14. Press ACC on the ignition switch if programming is complete.
15. Press Unlock on each newly programmed transmitter to complete the process.