LiftMaster 373P Remote

Your LiftMaster 373P at a glance

Three-button Security+ 315 MHz remote with proximity lighting.

373P battery & holder

Two 3 V CR2016 cells power transmission/LEDs; one 3 V CR2450 powers proximity sensing. Install positive side up; avoid bending the spring contact.

Programming your 373P

Setup depends on the exact receiver and hardware revision. These model notes do not establish a complete pairing sequence for your equipment.

Match both the remote and opener or external receiver. Keep the door or gate in sight and clear of people. Do not hold a LEARN button or erase memory unless the instructions for that exact equipment require it.

Compatibility & exclusions

315 MHz Security+ openers and universal receivers with purple Learn buttons; compatible 315 MHz gate receivers.

Gate-receiver enrollment may differ. Light-only and open/close/stop features require a compatible multifunction wall control.

If your 373P is not working

Checks for 373P

• Unreliable proximity sensing: leave it untouched on a nonmetal surface for 60 seconds, then check the CR2450 battery.

General troubleshooting checks.

• No response: check the marked battery type and polarity; note whether another authorized control works.
• Short range: note when the problem began and whether it changes by location. Do not alter receiver wiring.
• Damaged case or buttons: keep the model label; stop using exposed, wet or damaged electronics.

373P repair, parts & replacement

No exact replacement or part mapping has been confirmed for this page. A similar-looking remote, matching frequency or familiar model family is not sufficient evidence of interchangeability.

Model guides

Use the model-specific notes on this page with the instructions for your opener or receiver. A documented receiver match does not establish compatibility with every opener.