1998 Cadillac Eldorado Owner's Manual - Page 124

If you have trouble programming the universal transmitter, make sure that you have followed the directions exactly as described and that the battery in the hand-held transmitter is not dead. If you still cannot program it, rotate the hand-held transmitter end over end and try again. The universal transmitter may not work with older garage door openers that do not meet current Federal Consumer Safety Standards. If you cannot program the transmitter after repeated attempts, consult your dealer. Be sure tokeep the original hand-held transmitter in case you need to erase and reprogram the universal transmitter. Operating the Transmitter Press and hold the appropriate button on the universal transmitter. The amber light comes on while the signal is being transmitted. Note that the universal transmitter is disabled when the valet button inside the glove box is activated. For more information, see "Valet Lockout Button" earlier in this section. Also note that 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 1995, 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. Note to Canadian Owners:During programming, the hand-held transmitter may stop transmitting after one or two seconds. If you are programming from one of these transmitters, you should press and re-press the button on the hand-held transmitter every two seconds without ever releasingthe button on the universal transmitter. Release both buttons when the amber light on the universal transmitter begins to flashrapidly. To determine if you have this system, press the button on the universal transmitter that you have programmed already. If the amber light on the universal transmitter flashes rapidly for one or two seconds and then stops flashing, the garage door opener has a rolling code system. In a rolling code system, the garage door receiver must be trained to the universal transmitter.