How Do I Get My Garage Door Out of Lock Mode?
What this costs
| Option | Job | Low | High |
|---|---|---|---|
| Repair | Garage Door Repair | $80 | $620 |
How to tell it's in lock mode
Those signs come from Chamberlain Group, which makes LiftMaster and Chamberlain openers.
- The light on the wall control flashes constantly, or a screen panel says Lock Mode.
- Hand-held remotes won't operate the opener.
- The opener light flashes twice when you press a remote.
Turning it off, by type of control
Then test your remotes.
- Lock button: hold it for 2 seconds. It may be under the push-button cover.
- Screen panel: press the button below off on the screen.
- Simple doorbell-style button: Chamberlain says to press and release the learn button on the opener. Follow your manual for this one, and press it only briefly.
If it's not lock mode
Chamberlain says a door control light that blinks each time the door passes a certain point is a normal passpoint signal, not lock mode, and can't be turned off. If remotes still fail, we suggest checking the battery and see our answer on a door that isn't responding.
Do a quick safety check while you're there
CPSC suggests testing the reverse function by placing a 2x4 on the floor in the door's path. If the door doesn't reverse when it hits the board, disengage the opener until it's adjusted or repaired, and don't touch the springs.
Garage Door Won't Close? Check the Sensors First
Common questions
Does this work on every brand?
Does lock mode stop the wall button?
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Last verified 2026-11-04
- Chamberlain Group: Why the LED or screen flashes on the door control — Signs of lock mode and how to turn it off on lock button, screen and doorbell-style controls; passpoint flashing is different.
- U.S. Consumer Product Safety Commission: Non-reversing automatic garage door openers are a hazard (Pub. 523, April 2011) — Reverse test with a 2x4; openers without reversing systems should be disengaged until fixed.
General information, not professional advice. Conditions, codes and prices vary. Turn off power, gas or water before any work, and hire a licensed professional when in doubt. Cost figures are our estimates, not quotes.