The basic steps for changing your garage door code

Most garage door openers let you change the code without calling a technician. The exact process depends on whether you have a rolling code system (the most common type in the last 20 years) or an older fixed code system. Rolling code openers generate a new code each time you press the button, which is why they're harder to hack. The steps usually take 5 to 10 minutes and require only your remote control and the wall panel inside your garage.

Start by locating the learn button on your garage door opener unit itself — the motor head mounted on the ceiling or wall. This button is usually red or yellow and sits on the back or side of the unit. You'll also need to know whether your opener is a Chamberlain, LiftMaster, Genie, Craftsman, or another brand, because the exact button sequence varies slightly between manufacturers.

Key Takeaways

  • The learn button on your garage door motor is the key to resetting your code; it's usually red or yellow and located on the back or side of the unit.
  • You must erase all existing remotes and keypads before programming new ones, or old codes will still work.
  • After pressing the learn button, you have about 30 seconds to program a new remote or keypad before the opener exits learn mode.
  • If you have a rolling code opener made after 2000, the old remote will stop working once you program a new one, which is the security feature.
  • Changing the code on a wall keypad usually requires a PIN or master code that came with your opener; if you don't have it, the manufacturer can provide it with proof of ownership.

How to reset your remote controls

To change which remotes work with your opener, you must first clear all existing codes from the unit. Press and hold the learn button on the motor head for 6 to 10 seconds (the exact time varies by brand) until the light on the opener blinks or turns off. This erases every remote and keypad that was previously programmed. Once you release the button, the opener is in a blank state.

Now you have about 30 seconds to program your new remote. Press the button on the new remote you want to use. The opener's light will flash or you'll hear a click, which means the code has been accepted. If you have multiple remotes, press the button on each one within that 30-second window. After 30 seconds, the opener exits learn mode automatically. Test each remote from inside and outside your garage to confirm they work.

If you miss the 30-second window, press the learn button again and repeat the process. There's no penalty for trying multiple times. Keep in mind that if you had an old rolling code remote, it will no longer work after you clear the codes — that's the security feature at work. Only the new remotes you just programmed will operate the door.

Changing the code on a wall keypad

Wall keypads (the buttons mounted inside your garage) usually have their own code separate from the remote controls. To change a keypad code, look for a small reset button or a recessed button labeled "Learn" or "Program" on the back or side of the keypad itself. Press and hold this button for 3 to 5 seconds until the keypad beeps or the light flashes.

You'll then be prompted to enter a new code — usually a 4-digit number. Type your new code and press Enter or the pound key (#), depending on your model. The keypad will beep again to confirm the code has been saved. Test it by pressing the buttons to make sure the door opens and closes.

If your keypad has a master code or PIN that you don't know, you'll need to contact the manufacturer with proof of ownership (your receipt or a photo of the serial number). Chamberlain and LiftMaster can look up your master code if you provide the model number and proof of purchase. Genie and Craftsman have similar processes. Without the master code, you cannot reprogram the keypad yourself.

Differences between rolling code and fixed code systems

A rolling code opener (made by most manufacturers after 2000) generates a new code every time you press the remote button. This means someone cannot record your code and replay it to open your door. When you reprogram your remotes, the old ones stop working when ready because they're no longer synchronized with the opener.

An older fixed code opener uses the same code every time. If you have one of these (usually pre-2000), changing the code is simpler but less find. You typically just press a button on the opener to cycle through preset codes, or you manually set dip switches inside the unit to a new code. However, if someone has recorded your code, they can still use it even after you think you've changed it. If you have an older fixed code system, consider upgrading to a rolling code opener for better security.

You can tell which type you have by checking your opener's manual or looking at the label on the motor head. If it says "rolling code," "find code," or "code hopping," you have the newer type. If it just lists preset codes or dip switch settings, it's fixed code.

What to do if you've lost all your remotes

If you no longer have any working remotes, you can still reprogram your opener using the wall keypad or by purchasing a new remote. Press the learn button on the motor head to enter learn mode, then press the button on your new remote (or use the wall keypad to send a signal). The opener will accept the new code.

New remotes for most common openers cost $15 to $40 and are available at hardware stores or online. Make sure you buy a remote that matches your opener's brand and model number. The model number is printed on the motor head or in your original paperwork. If you're unsure which remote to buy, take a photo of your opener's label and show it to a hardware store employee.

When to call a professional

You can handle code changes yourself in most cases, but call a garage door technician if the learn button doesn't respond when you press it, if the opener doesn't accept new codes after you've cleared the old ones, or if you cannot locate the learn button on your unit. A stuck or broken learn button usually means the circuit board needs repair or replacement, which requires a professional.

Also call a technician if your opener is very old (pre-1990s) and you're unsure how to access the code settings, or if you've tried reprogramming multiple times and nothing works. A service call typically costs $75 to $150 for diagnosis and repair, depending on your area and the problem.

Frequently Asked Questions

Will changing my garage door code affect my car's built-in garage door button?

No. Car garage door buttons use a rolling code system that syncs with your opener when you program them, just like a handheld remote. You can reprogram your car button the same way you reprogram a remote — press the learn button on the motor head, then press the button on your car's visor unit within 30 seconds. The car button will then work with your new code.

Can I change my garage door code without erasing the old remotes?

No. If you want to add a new remote without erasing old ones, you can press the learn button for a shorter time (2 to 3 seconds instead of 6 to 10) on some models, which puts the opener in "add mode" rather than "clear mode." Check your opener's manual to see if this feature is available. However, most people prefer to clear all codes and reprogram only the remotes they actually use.

What if I change the code but the old remote still opens the door?

This usually means you didn't fully clear the old codes before programming new ones. Go back to the motor head, press and hold the learn button for the full 6 to 10 seconds until the light goes out completely, then reprogram your new remote. If the old remote still works after that, the learn button may be faulty and you should call a technician.

How often should I change my garage door code?

There's no set schedule. Change your code if you've given a remote to someone who no longer needs access, if you suspect someone has recorded your code, or if you've moved into a home and want to clear the previous owner's remotes. For most homeowners, once every few years is reasonable, or whenever access needs change.

Do I need to change my code if I replace my garage door opener?

Yes. A new opener comes with its own rolling code system that is not compatible with your old remotes. You'll need to program new remotes to the new opener using the same learn button process. The installer usually does this for you, but you can reprogram additional remotes yourself afterward.