2001 Chevrolet Monte Carlo Owner's Manual - Page 142

Operating the Transmitter Press and hold the appropriate button on the HomeLinkR Transmitter. The house symbol comes on while the signal is being transmitted. The effective transmission range of the HomeLink Transmitter may differ from the hand-held transmitter and from one channel to another. To determine if your garage door opener has this "rolling code" feature, press the appropriate button on the HomeLink Transmitter that was programmed. If the indicator light flashes rapidly for one or two seconds, then turns solid, your garage door opener has this feature. To program a garage door opener with the rolling code feature, do the following: 1. Program your hand-held transmitter to the HomeLink Transmitter by following the steps provided under "Programming the Transmitter" earlier in this section. Because of the steps involved, it may be helpful to have another person available to assist you in programming the transmitter. 2. Remove the cover panel from the garage door opener receiver. It is located near the garage door opener motor. Training a Garage Opener with a "Rolling Code" Feature If you programmed the HomeLinkR 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 that changes the "code" of your garage door opener every time it is opened or closed. 2-70