LiftMaster 371LM
The 371LM is a widely used single-button remote for many Security+ and Security+ 2.0 openers. For most homeowners, 371LM garage door remote programming follows the standard Learn button flow: one learn press on the opener, then press and hold the remote’s single button until the opener confirms.
Model-specific tips
- 1.If you are replacing a lost 371LM, you do not need the old remote—only a compatible opener and a working Learn cycle.
- 2.If the opener accepts the code but range is poor, inspect the opener’s antenna wire and replace the remote battery before assuming the receiver failed.
- 3.If multiple remotes stopped working at once, suspect lock mode, cleared memory, or an opener issue rather than the 371LM alone.