LiftMaster 855lm Homelink Repeater Kit

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.

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!

My situation is unique because I actually have an older garage door opener that was working with my car, but after 20 years it started having issues and it ignores the remotes half the time. A few years back I added a newer wall unit to check whether the door was up or down from the internet, which supports the newer protocol. So by adding the repeater kit I was able to pair my car to the wall unit instead of the garage door unit itself. It was extremely simple - just follow the instructions. The remote that is included with the repeater is already paired to the receiver. It was simpler than I thought it was going to be (don't overthink it).

My old opener (20+ yrs.) wore out (nylon gears) but worked well with the built in remotes in my 2004 Chrysler 300M and my 2004 Grand Cherokee.I was in a hurry to get an opener working for my wife so I purchased a Chamberlain PD75KEV at my local big box store. It was easy to install and works very well with the openers that came with it.HOWEVER, it would not work with the in vehicle remotes my cars have. I tried following the instructions, every suggestion I could find on the web, and several times erased the opener's memory. Nothing worked. The remotes that came with the opener were always easy to program.Finally I called the Chamberlain service line and they told me I had to buy this Liftmaster 855LM HomeLink® Repeater Kit to make the opener work with my "in car" remotes. I tried everything all over again and the "in car" remotes still don't work.I believe that:1. Chamberlain should have supplied a "repeater" in the box with the opener that would work with the it.or2. They should have supplied a mail in coupon for a repeater that would let the user specify what model cars he wants to use.and3. That the package the opener came in should say on the box that it does not work with "in car" remotes for MANY vehicles.The seller, by the way, was very nice and understanding when contacted and promptly settled things to my satisfaction. (not his fault the product is so poor) I would definitely buy from him again.I will not buy another Chamberlain product.Addendum:After many hours of trying and much frustration I finally was able to program the vehicles using the repeater. Here is what I did:1. Erased all memory in the vehicle AND the opener itself. Even though my vehicles do NOT have a separate Homelink light I found this YouTube video worked for me:https://www.youtube.com/watch?v=VJ63TdjMvIQ2. I paired the vehicle button to the repeater using the REPEATER instructions.3. Then paired the vehicle button to the opener using the OPENER instructions.This whole process took less than 10 min. after I figured it all out.I still give Chamberlin/ Homelink a 1 star rating because the printed instructions that came with the units do not work by themselves and the repeater was not supplied with the opener.The key to making all three (vehicle, repeater, and opener) work together is to FIRST erase all memory in the opener AND the vehicle.

Does not work with Car2U remotes. Deceptive marketing by Amazon has it come up when you search for Car2U. Fooled me. Seems like a decent unit for what it would work for, so I am splitting it down to 4 stars for not listing compatibility.