What Is Security+ 2.0 Rolling Code (and Why Your Old Remote Won't Work)?

By Roni Drutski, Owner – Literally Garage Door

Last updated: May 19, 2026

If you've bought a LiftMaster opener since about 2011 and tried to use an old remote with it, you've probably found out that the old remote refuses to pair. That's because the new opener uses Security+ 2.0, LiftMaster's encrypted rolling-code system, and your old remote almost certainly doesn't speak that language. Here's what Security+ 2.0 is, why it matters for your home's security, and how to get a new remote programmed in about 30 seconds.

Quick Background: Why Rolling Codes Exist

For decades, garage door remotes used fixed codes. Every press of the button sent the same radio signal. The signal was unique per opener, but if you could intercept and copy it once, you could open that garage forever. In the 1990s, hobbyists started building "code grabbers" out of cheap radio receivers - small handheld devices that recorded a remote's signal as it sailed past, then replayed it later to open the door.

LiftMaster, Genie, and other major manufacturers all moved to rolling codes in the 1990s and 2000s to defeat code grabbers. With a rolling code, every button press transmits a brand new code that the opener will only accept once. Recording the signal does nothing because by the time the thief tries to replay it, the opener has already moved past that code.

Security+ 2.0 is LiftMaster's most recent rolling-code system - the third major revision after the original Security+ from the early 2000s.

What's New in Security+ 2.0

Security+ 2.0 keeps the rolling-code principle but adds several upgrades that matter for everyday operation:

• Tri-band frequency hopping: The remote transmits across three frequencies (310, 315, and 390 MHz) instead of just one. This dramatically reduces interference from neighbor's garages, LED lighting, alarm systems, and other sources that historically jammed garage door signals.
• 128-bit encryption on the rolling code itself: Even a sophisticated attacker with an SDR (software-defined radio) can't reverse-engineer the next code from intercepted ones.
• Faster pairing: Programming a new remote takes about 30 seconds and works the same way across all current LiftMaster openers.
• Cross-compatibility: A Security+ 2.0 remote will program to any Security+ 2.0 opener. Same accessory works across the lineup.

Security+ 2.0 is the default for openers like the LiftMaster 2220L, 6580L, and 8165W.

How to Tell Which Security Version Your Opener Uses

LiftMaster color-codes the learn button on the back of each opener:

• Yellow learn button = Security+ 2.0 (current, the system this article covers)
• Purple learn button = Security+ (older rolling code, late 1990s through 2010ish)
• Orange or Red learn button = original billion-code rolling system (1990s)
• Green learn button = older Security+ subset
• No learn button = fixed-code opener (pre-1995, almost certainly time for replacement)

If your opener has a yellow learn button, you have Security+ 2.0 and need a Security+ 2.0 compatible remote (or universal multi-code remote) to add new transmitters.

Why Your Old Remote Probably Won't Work

Security+ 2.0 only accepts remotes that send Security+ 2.0 encrypted codes. If your old remote was originally programmed to:

• An opener with a purple learn button - the remote may be Security+ but not Security+ 2.0. It won't pair to a yellow-button opener.
• An opener older than the late 1990s - the remote almost certainly uses a fixed code and won't pair to any modern opener.
• A different brand (Genie, Chamberlain pre-LiftMaster-merger, Stanley, etc.) - the encryption is incompatible.

For more troubleshooting, see our garage door remote not working guide.

How to Program a Security+ 2.0 Remote (30-Second Procedure)

This works for any LiftMaster opener with a yellow learn button and any Security+ 2.0 compatible remote (including the LiftMaster 893MAX, 891LM, and Keychain remote 374LM). The procedure is the same whether you're adding a new remote or replacing a lost one.

1. Stand under the opener with a stepladder. The yellow learn button is on the back of the motor housing, sometimes behind a small light cover that flips up.
2. Press and release the yellow learn button. The LED next to it lights up solid (orange or green depending on model). You have 30 seconds.
3. Within those 30 seconds, press and hold the button on the new remote for about 3 seconds. The opener's lights will flash, click, or both, confirming the pairing.
4. Release the remote button and test the remote from a normal distance. It should open or close the door on the first press.

To erase all remotes programmed to the opener (useful if you've lost one and don't know who has it), press and hold the yellow learn button for 6 seconds until the LED goes out. All paired remotes are wiped. You'll need to reprogram every remote you want to keep.

If the Remote Won't Pair

Most pairing failures come down to one of three things:

• Wrong remote type. Confirm the remote box or printed insert lists "Security+ 2.0" or "Tri-Band" compatibility. A purple-Security+ remote will not pair to a yellow-Security+-2.0 opener.
• Dead remote battery. Even brand-new remotes occasionally ship with weak batteries. Swap in a fresh CR2032 or CR2025 (depending on the model) and retry.
• Timing. If you wait more than 30 seconds after pressing the learn button, the programming window closes. Press learn again and retry.

If the remote still won't pair after troubleshooting all three, the receiver inside the opener may have failed. We can diagnose this in 10 minutes during an opener repair visit.

Is Security+ 2.0 Actually Secure?

For the threat model that matters to homeowners - someone trying to capture or replay your garage door signal - Security+ 2.0 is effectively unbreakable with current consumer-grade equipment. The combination of 128-bit encryption, tri-band frequency hopping, and rolling-code structure means there's no practical attack short of physically stealing your remote.

The bigger security questions for a modern garage are about Wi-Fi, not radio. If you use myQ smart garage, make sure your home Wi-Fi has a strong, unique password and that your myQ account uses two-factor authentication. The opener's radio is secure; your account login is the more realistic attack surface.

Frequently Asked Questions

What is Security+ 2.0?

Security+ 2.0 is LiftMaster's current rolling-code radio system used in residential and commercial garage door openers. It sends a unique 128-bit encrypted code on each button press across three radio frequencies, defeating code-grabbing attacks and frequency interference.

Will a Security+ 2.0 opener accept an old remote?

Only if the old remote is also Security+ 2.0 compatible. Original Security+ remotes (purple learn button era), billion-code remotes, and fixed-code remotes are all incompatible. Universal multi-code remotes that explicitly list Security+ 2.0 support will work.

How do I program a new Security+ 2.0 remote?

Press and release the yellow learn button on the back of the opener. Within 30 seconds, press and hold the new remote's button until the opener's lights flash or click. Test the remote from a normal distance. The whole procedure takes about 30 seconds.

Why does my new remote work intermittently?

Intermittent operation on a properly programmed Security+ 2.0 remote usually means a low battery or radio interference from a nearby LED light, alarm panel, or wireless device. Replace the battery first, then move the offending device farther from the opener if interference continues.

Need a New Remote or Opener Diagnosis?

We carry Security+ 2.0 remotes on the truck and can program a replacement in minutes during any service visit, or we can come out for a remote-only call. If your opener has stopped accepting remotes entirely, the receiver may be failing - a quick test tells us whether it's a remote issue or a receiver issue. Free estimates across Northern NJ.

Call (551) 279-6408 for remote programming or opener repair.