Replacing a Missing Transmitter (FOB)

 

I thought I'd add my experience here which was done on a 2007 Cadillac STS.

This is one way that I found to get a missing transmitter out of the car’s computer. This is a 30+ minute process.

 

Replacing a missing FOB.

NOTE: Do not put any of the remote transmitter where the car can detected it.

  1. The procedure will require three, ten minute cycles to complete the matching process.
  2. The vehicle must be off.
  3. Insert the vehicle key into the key lock cylinder located on the driver’s door.
  4. Turn the key to the unlock position five times within five seconds.
  5. The DIC message will display OFF/ACC TO LEARN.
  6. Press the Acc. button (ignition switch).
  7. The DIC will read WAIT 10 MINUTES and will count down to zero, one minute at a time.
  8. The DIC will display OFF/ACC TO LEARN again.
  9. Press the Acc. button (ignition switch) again.
  10. The DIC will again read WAIT 10 MINUTES and will count down to zero, one minute at a time.
  11. The DIC will display OFF/ACC TO LEARN again.
  12. Press the Acc. button (ignition switch) again.
  13. The DIC will again read WAIT 10 MINUTES and will count down to zero, one minute at a time.
  14.  Press the Acc. Button (ignition switch) again.
  15. A beep will sound and the DIC will read READY FOR FOB 1. At this time, all previously known transmitters have been erased.
  16. Place the transmitter into the transmitter pocket with the transmitter buttons facing the front of the vehicle. The transmitter pocket is inside the center console storage area located between the driver and front passenger seats.
  17. Once the transmitter is recognized and programmed, a beep will sound and the DIC will display READY FOR FOB 2.
  18.  Repeat step 15 until all transmitters have been programmed
  19.  Press the Acc. button (ignition switch) to exit the program.
  20.  Press the unlock button twice on each transmitter to initialize it.

 

Although this does replace a missing transmitter, if the key is also missing, it could be used to program a transmitter or delete the existing ones. If you have a missing key, I suggest that you take further action to get it out of the picture as well.