1999 Cadillac Catera Owner's Manual - Page 120

yellowblue Note to Canadian Owners: During programming, the hand-held transmitter may automatically stop transmitting after one or two seconds. In this case, you should press and re-press the button on the hand-held transmitter every two seconds without ever releasing the button on the Universal Transmitter. Release both buttons when the indicator light on the Universal Transmitter begins to flash rapidly. To determine if you have this system, press the button on the Universal Transmitter that you have programmed already. If the indicator light on the Universal Transmitter flashes rapidly for two seconds and then turns solid, the garage door opener has a rolling code system. In a rolling code system, the garage door motor head unit must be trained to the Universal Transmitter. Operating the Universal Transmitter Press and release the appropriate button on the Universal Transmitter. The indicator light comes on while the signal is being transmitted. If the hand-held transmitter appears to program the Universal Transmitter but does not open your garage door, and if the garage door opener was manufactured after 1996, the garage door opener may have a "rolling code" system. A rolling code system changes the code of the garage door opener every time you open or close the garage door. "Rolling Code" Programming (If Equipped) If you have not previously programmed the hand-held transmitter to the Universal Transmitter, see "Programming the Universal Transmitter" listed previously. If you have completed this programming already, you now need to train the garage door opener motor head unit to recognize the Universal Transmitter. Refer to your garage door opener owner's manual for the proper transmitter training procedure for your garage door opener brand. 2-58