LiftMaster 855lm Homelink Repeater Kit

Some important things to realize about this product:(1) Their online marketing material is not clear, but the smaller box that looks like a remote control is *ONLY* for programming your older car's HomeLink 1.0 system. You cannot use it as an additional GDO (garage door opener) remote. However, I'm planning on keeping it in case I have to reprogram my old car due to a battery disconnect or I buy a different older model car.(2) Place the repeater (the larger box) as close to the GDO as possible. Mine is about 18" from it, and it works great. Some reviewers had complained about this, perhaps because they don't have an electrical outlet close to the GDO. But I don't understand that rationale because the GDO runs on electricity, so why not just plug the repeater into the same electrical outlet, even if you have to use a power strip?(3) The repeater works as an intermediate relay, essentially taking your old car's HomeLink transmission (v1.0 is at a lower frequency) and converting it to the higher frequency required by the HomeLink v2.0 system (which is probably what your new GDO senses). The higher frequency gives HomeLink an opportunity to offer you control over more devices within your home.(4) Use the smaller box (the thing that looks like a GDO remote) to first sense what frequency your car's built-in HomeLink 1.0 system broadcasts at. Those instructions are per YOUR vehicle and will NOT be included in this HomeLink product. If you don't have the original owner's manual, find one online or call a dealership to ask how to program a new GDO remote.(5) Follow the instructions included with this HomeLink Repeater product to sync it with your car's output. It's super simple; literally the press of two buttons within a 30-second window.(6) IMPORTANT: Straighten the purple antenna wire so that it hangs straight down as much as possible. If it is coiled, it will not sense your car's signal as well, forcing you to get drive closer to the garage to be within range. One reviewer here mentioned you could tie an 18-gauge wire to the end of the purple antenna wire with a wire nut in order to extend your range, but I did not have to do that.(7) The total install took me about 10 minutes, but that included reading the instructions, digging through a drawer, setting up a ladder to reach the electrical outlet above my GDO, and walking between my car (outside the garage) and the ladder inside my garage. :-)(8) When finished, my 2001 BMW's old HomeLink built-in NOW reaches considerably farther than what I had before. I can activate the GDO from the top of the hill, about 300 feet from the garage. It works fantabulous!This is a solid product, easy to install, and gave me more range than my old built-in HomeLink broadcasting unit in my BMW. Good luck!

Works great. Super easy. Allows my 2007 model car with Homelink to work with my 2021 Chamberlain garage door opener. Use the old tech remote included to program your car and plug in the compatibility bridge module into the same receptacle the garage door opener uses. Excellent instructions included.A whole lot nicer than having one of those new remotes clipped to my sun visor. Just what I was looking for.

Yes, like everyone else I was surprised to find out that my car's HomeLink buttons did not work with my new Chamberlain garage door opener. I was ready to pull my hair out figuring why it wouldn't program properly. After calling Chamberlain they very casually informed me (this must be their number one support call topic) that I needed the Home Link repeater kit in order for the newer model garage door opener to work with my older HL controls in my car. Seems the technology gods forgot about backwards compatibility. When I received the HomeLink repeater kit it was literally a 3 minute install. The enclosed remote is only used to program one of your HL buttons. Once it's programmed you no longer need the remote until you are ready to program another remote, or another door opener. Yes, one HL repeater will work on multiple doors within the same four walls. I was quite happy that the HL repeater programmed so easily, and correctly the very first time. There was absolutely no issues.As others have pointed out, the HL buttons will not work during a power outage as the repeater requires constant AC power. You can mitigate this in one of several ways (provided your garage door has battery backup installed), e.g., have an external keypad entry for the garage door, store one of the remotes in your car's glove box (no one really wants to do this as it becomes a security issue), provide battery backup to the HL Repeater. Any of these will work, but really, how often do you deal with power outages. In my area they are very scarce so this was a non-issue for me.