1998 Oldsmobile Aurora 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 thebatteries in thehand-held transmitter are not dead. If you still cannot program it, rotate your hand-held transmitter end over end and try again. The universal transmitter may not work with older garagedoor openers that do not meet current Federal Consumer Safety Standards. If you cannot program the transmitter after repeated attempts, consult your Aurora retailer. Be sure to keep your original hand-held transmitter in caseyou need to eraseand reprogram the universal transmitter. 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 transmission range of the universal transmitter may differ from your hand-held transmitter and also from one channel toanother. Training a Garage Door Opener Equipped with "Rolling Codes" If you programmed the universal transmitter, but the garage door will not open, and if your garage door opener was manufactured after 1995, your garage door may have a security feature thatchanges the "code" of your garage door opener every time it is opened or closed. Note to Canadian Owners:During programming, your 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 three seconds afterthe red light on the universal transmitter begins to flash rapidly. To determine if your garage door opener has this rolling code feature, press and hold the appropriate button on the universal transmitter that was programmed. If the red light flashes rapidly for oneto two seconds, then turns solid, your garage door opener has this feature.