You’d be right to be concerned about security with your wireless garage door opener and remote. An intruder can gain access to your garage contents, or even your home if you don’t follow some simple security steps.
Different radio frequencies are used for communication between the remote and the opener. Tiny switches known as dip switches are used to adjust the frequency used between the two. It is a wise idea to reconfigure the dip switch settings to make sure your garage more secure.
A dip switch is a small block of plastic about the size of a dice cut in half. They are usually colored blue or red with 8 to 10 tiny white switch levers positioned up or down. Only when the up / down switch patterns match on both devices will your garage door opener remote control be able to communicate with the opener unit. By adjusting the switch pattern, you are changing the radio frequency used to communicate between the two.
You should be able to easily locate the dip switch on the opener and on the remote control clicker. But to get access to the dip switch on the remote you might need to open it up if the dip switch isn’t found in the battery...