1998 Cadillac DeVille Owner's Manual - Page 130

Universal Transmitter (Option) interference that may cause undesired operation of the device. by Changes and modifications to this system other than an authorized service facility could void authorization to use this equipment. Programming the Transmitter Do not use the universal transmitter with any garage door opener that does not have "stop and reverse" the safety feature. This includes any garage door opener model manufactured before April 1, 1982. Be sure that people and objects clear of the garage are door you are programming. Your vehicle's engine should turned off while be to programming the transmitter. Follow these steps program up to three channels: 1. If you have previously programmed a transmitter channel, proceed to Step 2. Otherwise, hold down the two outside buttons on universal transmitter the until the amber light begins to flash rapidly the (approximately 20 seconds). Then release buttons. This procedure initializes the memory and erases any previous settings all three channels. for 2. Decide which one of the three channelsyou want to program. This device complies witha t 15 of the FCC Rules. Pr Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that cause may undesired operation. RSS-210 of Industry Canada. This device complies with Operation is subject to the following two conditions: (1) this device may not cause interference, and this (2) device must accept any interference, including