2019 Cadillac CT6

Programming Guide for 2019 Cadillac CT6 Smart Keyless Entry Remote Fob

Important Notice: Your 2019 Cadillac CT6 allows onboard programming of additional smart key fobs only when two recognized transmitters are present. If no working remotes are available, a 30-minute security relearn process must be completed. You can program up to eight transmitters to the vehicle. Ensure all remotes are available before beginning.

Programming with Two Recognized Transmitters: Follow this process when you have two working remotes.

  • Step 1: Remove the mechanical key from both recognized transmitters.
  • Step 2: Place the two recognized remotes in the cupholder.
  • Step 3: Remove the key lock cylinder cap from the driver door handle. Insert the mechanical key and turn it counterclockwise to the unlock position five times within 10 seconds.
  • Step 4: The Driver Information Center (DIC) will display READY FOR REMOTE #2, 3, 4, ETC.
  • Step 5: Open the center console, remove the rubber mat if present, and place the new transmitter into the transmitter pocket.
  • Step 6: Press the ENGINE START/STOP button. The DIC will confirm when the remote has been successfully learned.
  • Step 7: Remove the newly programmed transmitter from the pocket and press either the LOCK or UNLOCK button.
  • Step 8: To program additional remotes, repeat Steps 5 through 7.
  • Step 9: After all remotes are programmed, press and hold ENGINE START/STOP for approximately 12 seconds to exit programming mode.
  • Step 10: Reinsert the mechanical key into each transmitter.

Programming without Recognized Transmitters: Use this procedure if no recognized transmitters are available. The process takes about 30 minutes and will erase all previously programmed keys.

  • Step 1: Remove the mechanical key from the new transmitter.
  • Step 2: Remove the key cylinder cap from the driver door handle. Insert the mechanical key into the cylinder.
  • Step 3: Turn the key counterclockwise to the unlock position five times within 10 seconds. The DIC will display REMOTE LEARN PENDING, PLEASE WAIT.
  • Step 4: Wait approximately 10 minutes until the DIC displays PRESS ENGINE START BUTTON TO LEARN, then press the ENGINE START/STOP button.
  • Step 5: Repeat Step 4 two more times. After the third cycle, the DIC will display READY FOR REMOTE #1. At this point, all previous keys have been erased.
  • Step 6: Open the center console and place the new transmitter into the transmitter pocket.
  • Step 7: Press the ENGINE START/STOP button. The DIC will confirm when the transmitter is learned.
  • Step 8: Remove the transmitter from the pocket and press either LOCK or UNLOCK on the fob.
  • Step 9: To add more remotes, repeat Steps 6–8.
  • Step 10: After all remotes are programmed, press and hold ENGINE START/STOP for about 12 seconds to exit programming mode.
  • Step 11: Reinsert the mechanical key into each programmed transmitter.