The LiftMaster 855LM HomeLink RPTRMC Repeater Kit is a compatibility bridge that allows many older, factory-installed HomeLink systems in vehicles to operate newer LiftMaster, Chamberlain, and Craftsman garage door openers that use Security+ 2.0 encrypted tri‑band radio technology. Designed for North American openers with the yellow Learn button, the kit includes a plug‑in repeater module and a handheld transmitter to translate legacy HomeLink signals to the opener’s Security+ 2.0 system (310/315/390 MHz). The repeater plugs into a standard 120V AC indoor outlet near the opener and is intended primarily for residential applications where a vehicle’s built‑in HomeLink (often pre‑2012 or pre‑HomeLink 4.0) will not directly program to a newer operator.
Setup is straightforward: pair the included transmitter to the opener using the Learn button, plug in and sync the repeater, then train the vehicle’s HomeLink button to the repeater following the on‑screen or owner’s manual prompts. This upgrade is a reliable replacement solution for in‑car buttons that won’t communicate with Security+ 2.0 openers, maintaining rolling‑code security while restoring convenient visor‑button control. For best results, install the repeater indoors near the opener, ensure the opener is a compatible Security+ 2.0 model, and verify vehicle compatibility at HomeLink resources. Always follow the manufacturer’s safety instructions and keep the doorway clear during programming.
WHEN TO INSTALL A REPEATER KIT: All 2006 and Older vehicles require a repeater kit installation which must be purchased by the homeowner. All 2007 and Newer vehicles – Perform regular HomeLink installation per vehicle instructions. If after ONE complete attempt at installation, the HomeLink does not program with opener, install a repeater. (To program the HomeLink Repeater Kit, refer to the instructions provided in the kit or visit: homelink.com/program/vehicle) INSTALLATION QUICK FACTS: 1. Install ONE repeater per HOME 2. Use different HomeLink buttons in vehicle if programming multiple cars, button 1 first car, button 2 second car, etc. 3. HomeLink remote is NOT to be used as a garage door opener remote control Battery Backup Feature Information: If you are using this repeater with a garage door opener that has Battery Backup be sure that your original garage door opener remote control is programmed to the garage door opener and then place it in your glove box for use in the event of a power outage.