Open the garage door from the inside and stand in front of the wireless outdoor control panel.
Enter the existing four-digit code and hold "#."
Release "#" when the opener lights blink twice or, if no lights are fitted, you hear two clicks from the motor head.
Enter a new four-digit code and press "Enter." The new code works immediately.
Stand on a stepladder and find the "Learn" button on the opener motor head.
Press "Learn." The light above glows for 30 seconds.
Enter a new code into the wireless outdoor panel and hold "Enter."
Release "Enter" when the indoor lights flash twice or you hear clicks from the motor head. The new code is ready.