1998 Cadillac Catera Owner's Manual - Page 127

1. If you have previously programmed a transmitter channel, proceed to Step Otherwise, hold down 2. the two outside buttons on the universal transmitter Changes and modifications to this system other than by until the indicator light begins to flash rapidly an authorized service facility could void authorization to (approximately 20 seconds). Then release the use thisequipment. buttons. This procedure initializes the memory and erases any previous settings all three channels. for This device complies withRSS-210 of Industry Canada. Operationis subject tothe following two conditions: (1) this device may not cause interference, and (2) this device must acceptany interference, including interference that may cause undesired operation of the device. Your vehicle's ignition should be on and engine the should be off while programming the transmitter. Follow these steps to program up to three channels: Programming the Transmitter Do not use the universal transmitter with any garage door opener that does not have the "stop and reverse" safety feature.This includes any garage door opener model manufactured before April 1982. 1, 2. Decide which one of the three channels you want to program. Be sure that people and objects are clear garage of the door you are programming. 3. Hold the endof the hand-held transmitter about one inch (2.5 cm) away from the rear surface the of mirror so that you can still see indicator light. the