2002 GMC Envoy Owner's Manual - Page 140

3. Return to HomeLink in your vehicle and firmly press and release the programmed HomeLink button three times. The rolling-code garage door opener should now recognize HomeLink. You may either use HomeLink or the hand-held transmitter to open the garage door. If after following these instructions, you still have problems training the garage door opener, contact the manufacturer of HomeLink at 1-800-355-3515, or on the internet at www.homelink.com. Operating the HomeLink Transmitter Press and hold the appropriate button on HomeLink for at least half of a second. The indicator light will come on while the signal is being transmitted. Erasing Channels To erase all three programmed channels, hold down the two outside buttons until the indicator light begins to flash (approximately 20 seconds). Release both buttons. Resetting Defaults To reset HomeLink to default settings, hold down the two outside buttons until the indicator light begins to flash (approximately 20 seconds). Continue to hold both buttons until the HomeLink indicator light turns off and then release both buttons. Canadian Programming Canadian Owners: During programming, the hand-held transmitter may automatically stop transmitting after two seconds. In this case, you should press and hold the HomeLink button (see Steps 2 and 3 under "Programming the HomeLink Transmitter") while you press and re-press (cycle) your hand-held transmitter every two seconds until HomeLink is trained. Accessories Accessories for the HomeLink Transmitter are available from the manufacturer of the unit. If you would like additional information, please contact the manufacturer of HomeLink at 1-800-355-3515, or on the internet at www.homelink.com. 2-71