Skip to content
EN · km
Language
Units
My Garage

Central Locking Not Working

Central locking that fails on one door usually has a faulty door lock actuator; if no doors respond to the remote, the key battery, the car battery or a receiver or control module fault is more likely.

Normal risk

Fix it soon, especially if a door will not lock, for security reasons.

Short answer · Why is my central locking not working?

Each door has a small motorised actuator that moves the lock. These wear and fail one at a time, so one door stops locking or unlocking. If none of the doors respond to the remote, check the key battery and try the spare key. Also consider the car battery and the body control module. Wiring in the door hinge can also break.

On this page

Safe checks you can do

  1. Try the key in the doorIf the doors respond to the key but not the remote, the key battery is likely.
  2. Try the spare keyIt helps separate key and car faults.
  3. Listen at each doorA door without a buzz or click has a failed actuator.

Questions that narrow it down

  1. Is only one door affected?That door's actuator.
  2. Does the remote work at close range?Weak key battery.
  3. Is the car battery weak?Low voltage affects locking.

Possible causes

Listed without ranking. Use the questions above to see which ones fit your car.

  1. Failed door lock actuatorOne door affected.
  2. Weak key batteryRemote has short range.
  3. Low car batterySystem does not respond.
  4. Broken wiring in the doorIntermittent faults.
  5. Body control module faultWhole system affected.

Questions about Central Locking Not Working

Can I lock the door manually?

Most cars have a key lock on the driver's door and manual locks on others; check the owner's manual.

Is an actuator easy to replace?

It usually requires removing the door panel.