1996 Cadillac Eldorado Owner's Manual - Page 118

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 Cadillac dealer. Operating the Transmitter Press and hold the appropriate button on the universal transmitter. The red light comes on while the signal is being transmitted. Note that the effective transmissionrange of the universal transmitter may differfrom the hand-held transmitter and from one channel to another. Also note that the universal transmitter is disabled when theVALET button inside of the glove box is activated. For more information, see "Security Override" earlier in this section. in Be sure to keep the original hand-held transmitter case you need to erase and reprogram the universal transmitter. 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 releasing the button on the universal transmitter. Release both buttons when the red light on the universal transmitter begins to flash rapidly. Erasing Channels To erase all three programmed channels, hold down the two outside buttons until the red light begins to flash. Individual channels cannot be erased, but can be reprogrammed using the procedure for programming the transmitter explained earlier. Accessories Accessories for the universal transmitter are available from the manufacturer of the unit. If you would like additional information please call 1-800-355-35 15.