How to Solve the Problem of Car Doors Not Locking and Remote Control Not Working?
2 Answers
Car doors not locking and remote control not working can be resolved by the following methods: 1. When the battery is low, it may cause a situation that resembles remote control failure, and the key battery needs to be replaced; 2. If the remote function fails despite the key having power, since the key is sealed, internal components may become damp or dirty and oxidized over time, causing the buttons to gradually become less responsive. In this case, the key casing should be opened, the battery removed, and the button contacts inside the key cleaned with alcohol swabs; 3. If there is poor contact on the circuit board, soldering may be required. It is recommended to take it to a specialized electronics repair shop or a mobile phone repair service for handling.
I often help friends with car repairs, and when encountering remote locking failure, there could be several reasons. First, check the remote's battery—if it's been used for a long time, it might be low on power; try replacing it with a new one. If that doesn’t work, inspect whether the door lock mechanism is stuck or rusty, especially after humid weather, as this can cause issues. Signal interference is also common—for example, strong Wi-Fi devices or mobile phones near the car might disrupt signal reception; move them away and try again. A blown fuse is another potential fault point—check the owner’s manual for the fuse box location and replace the fuse. If the mechanical key can lock the doors, the issue lies in the remote system; if neither works, it’s best to visit a professional shop to inspect the control module. Don’t delay too long, as this problem affects anti-theft and safety. During routine maintenance, cleaning the keyhole and remote can help prevent similar issues.
