Guide · Troubleshooting

How to Change or Reset a Garage Door Keypad Code by Brand

Updated October 4, 2026By Niv, owner and lead technician

Same-day appointments in most cases

Quick answer

On a Chamberlain, LiftMaster or Craftsman keypad, enter the current PIN, hold # until the opener light blinks twice, then enter the new PIN and press Enter. On Genie keypads, enter the current PIN, press PROGRAM or hold the star key, enter the new PIN and press that key again. Forgot the PIN? Program a new one through the opener, or reset the keypad.

Key takeaways

  • If you know the current PIN, you can change it at the keypad without a ladder.
  • A forgotten PIN cannot be read back. Program a new one through the opener's learn button, or reset a Genie keypad.
  • After a move or a tenant change, erase the opener's memory, then set a new PIN and reprogram the remotes you keep.
  • Many Chamberlain-made keypads can hold a temporary PIN for a set number of hours or openings.
  • Chamberlain-made openers built from 2025 have a white learn button and need Security+ 3.0 accessories.

A keypad code tends to spread. The dog walker has it, the contractor had it, and the last tenant wrote it on a sticky note. Changing it takes about a minute when you know the current PIN, and a few minutes more when you do not.

The steps below are grouped by brand family and come from each maker’s published instructions, listed in the sources. Our remote, keypad and HomeLink programming guide covers remotes and cars. This page is only about the keypad code.

Before you start

A safety note first. Test every new code from where you can see the whole door, and keep people, pets and cars out of its path while it moves. If you need the learn button, you will be on a stepladder under the opener: keep your hands clear of the rail, the chain or belt and the trolley. Never unwind, adjust or remove a torsion or extension spring, a lift cable, a cable drum or a bottom bracket, and never run the opener with a broken spring or a snapped cable.

Then find two things:

  • The keypad brand and model. It is usually on the front or inside the battery cover.
  • The opener’s learn button. On Chamberlain-made openers, note its color. The opener brand identification guide shows where to look.

Which situation are you in?

SituationWhat to doLadder?
You know the current PINChange it at the keypadNo
You forgot the PINProgram a new PIN through the opener, or reset a Genie keypadUsually
You moved in, or a tenant moved outErase the opener’s memory, then set a new PIN and reprogram your remotesYes
A visitor needs access for a whileSet a temporary PIN, where the keypad supports itNo

Chamberlain, LiftMaster and Craftsman

These keypads come from the same maker, since Chamberlain made Craftsman openers for Sears, and they work the same way. Craftsman’s current keypad sheet uses the same steps as Chamberlain’s.

Change a PIN you know

  1. Enter the current four-digit PIN.
  2. Press and hold # until the opener light blinks twice.
  3. Enter the new four-digit PIN and press Enter.
  4. Test it: enter the new PIN and press Enter. The door should move.

If your opener has a green learn button or uses an external receiver, this shortcut does not work. Program a new PIN from scratch instead, as below.

Forgot the PIN

You cannot read the old PIN back out of the keypad, so you program a new one through the opener:

  1. Press and release the learn button on the motor head. Its light comes on for about 30 seconds.
  2. Within that window, enter a new four-digit PIN, then press and hold Enter until the opener lights blink or you hear two clicks.
  3. Test the new PIN with the door path clear.

Universal keypads with a model number ending in EV or MAX need a setup step first. Hold * and # until the keypad lights stop blinking, enter your new PIN and press #. Then press Enter once for a yellow learn button, twice for purple, three times for red or orange, or four times for green, and press 0. Now do the learn button steps above.

To be certain an old code no longer works, erase the opener’s memory first, as described further down.

Give a visitor a temporary PIN

  1. Enter your own PIN, then press and hold * until the opener light blinks three times.
  2. Enter a temporary four-digit PIN, then press and hold Enter until the light blinks four times.
  3. Enter a number of hours, up to 255, and hold *. Or enter a number of openings, up to 255, and hold #. Release when the light blinks once.

The temporary PIN stops opening the door when it runs out, though Chamberlain notes it can still close it. To cancel it early, repeat the steps and set the hours or openings to 0. The feature is not available on openers with a green learn button.

Openers built from 2025

Chamberlain-made openers built from 2025 use Security+ 3.0 and have a white learn button. They take only Security+ 3.0 remotes and keypads, so an older keypad will not pair with one. Follow the instruction sheet that comes with the 3.0 keypad.

Genie

Genie keypads accept PINs of 3 to 8 digits.

Current Genie keypad (GK2-R)

To change a PIN you know:

  1. Enter the current PIN.
  2. Press and hold * until the green light flashes, about 5 seconds.
  3. Enter the new PIN.
  4. Press and release * once. The old PIN stops working.

Forgot it? Hold * until the red light turns solid, about 20 seconds. That clears every PIN on the keypad. Then program a new PIN with the opener in program mode, as the programming guide describes. To delete one PIN you know, hold * until the red light flashes, about 10 seconds, enter that PIN and press * once.

Older Genie keypads and the Genie universal keypad

To change a PIN you know, enter the current PIN and press PROGRAM once, and the light turns solid. Enter the new PIN and press PROGRAM once more. The light blinks twice and goes out.

Forgot it? Press and hold PROGRAM and UP/DOWN together for about 5 seconds to reset the keypad to its factory settings, then program it to the opener again.

Overhead Door

Overhead Door is Genie’s sister brand, and its openers take Genie-type remotes and keypads. Genie lists Overhead Door among the openers its universal keypad works with, so on that keypad use the Genie steps above. On a keypad with the Overhead Door name on it, the sheet uses a similar PROGRAM key sequence: enter the current PIN, press PROGRAM, enter the new PIN and press PROGRAM again [verify].

How do you erase everything after a move or a tenant change?

A new keypad PIN does not stop the old remotes, car buttons or app users. After a move, or between tenants, start from zero:

  1. Erase the opener’s memory. On Chamberlain, LiftMaster and Craftsman openers, hold the learn button until its light goes out, about 6 seconds. That clears every remote and keypad code, including car HomeLink buttons. Genie’s sequence depends on the model, and the programming guide has both versions.
  2. Set a fresh keypad PIN with the forgot-the-PIN steps above.
  3. Reprogram the remotes you are keeping, and your car.
  4. Remove old users from the opener app. A memory erase does not touch app access.

Landlords can hand this to our property manager service at every turnover. It matters most where tenants change often, like San Marcos, with its student rentals, and Oceanside, where military families move in and out on orders.

How do you pick a code that is hard to guess?

Skip the house number, birthdays, 1234 and the last four digits of a phone number. On Genie keypads you can use up to 8 digits, while Chamberlain-made keypads use four. Wipe the keypad face now and then too, because shiny, worn buttons can give away which digits are in the code.

What if the keypad still will not work?

Start with the keypad battery. Many Chamberlain-made keypads run on a 9-volt battery, and the Genie universal keypad takes AAA cells. Then press the wall button inside: if the door moves from there, the opener is fine and the keypad or its code is the problem.

If the opener light flashes but the door does not move, the problem is the door or the opener’s drive, not the code. The remote or keypad not working page walks through the symptoms.

Next step

If the keypad is dead, missing or too old to pair with your opener, book remote and keypad service. We clear the old codes, fit a keypad that matches the opener and program every remote you keep.

Rather have a technician look at it?

We repair garage doors across San Diego County, same day in most cases, with the price agreed before we come out.

Frequently asked questions

What do I do if I forgot my garage door keypad code?

Program a new code through the opener. On Chamberlain, LiftMaster and Craftsman openers, press the learn button on the motor head, enter a new four-digit PIN within 30 seconds and hold Enter until the opener lights blink. Genie keypads can be reset to factory settings and programmed again. To be sure the forgotten code is gone for good, erase the opener's memory first.

Can I give a dog walker or contractor a temporary garage code?

On many Chamberlain-made keypads, yes. Enter your own PIN, hold * until the opener light blinks three times, enter the temporary PIN and hold Enter until it blinks four times, then set a number of hours or openings, up to 255. The code stops opening the door when it runs out. The feature does not work on openers with a green learn button.

Does erasing the opener's memory clear the keypad code too?

On Chamberlain, LiftMaster and Craftsman openers, yes. Holding the learn button until its light goes out, about 6 seconds, clears every remote and keypad code along with car HomeLink buttons, so you program a fresh PIN and your remotes afterward. It does not remove users from the opener's app. Do that in the app itself.

How many digits can a garage door keypad code have?

It depends on the brand. Chamberlain, LiftMaster and Craftsman keypads use a four-digit PIN. Genie keypads, including Genie's universal keypad, accept 3 to 8 digits. A longer code is harder to guess, so on a Genie keypad it is worth using six or more digits that are not a house number, a birthday or part of a phone number.

How often should I change my garage door keypad code?

Change it whenever the code has gone further than you meant: after a contractor, house sitter or cleaner finishes, after a roommate moves out, and every time you move in or a tenant leaves. Otherwise, once or twice a year is a sensible habit. When you know the current code, the change takes about a minute at the keypad.

Sources

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