What to Do When the Mechanical Key Fails to Unlock the Car Door?

[Hannah]

If the mechanical key cannot turn and unlock the car door, the first possibility is that the car's central locking system is in an electronic lock state. You need to wait for one or two hours until the lock is released before attempting to unlock again. Additionally, there are three other possibilities: incorrect operation, a faulty lock cylinder, or a problem with the mechanical key. Below are extended details: 1. Incorrect operation: For example, turning the key in the wrong direction. In most cases, turning the key clockwise unlocks the door, while turning it counterclockwise locks it. Specific operations can be found in the car's user manual, which provides detailed explanations. 2. Faulty lock cylinder: Most car owners use remote keys to unlock or lock the car door and rarely use mechanical keys. Due to prolonged disuse, the lock cylinder may rust. You can try adding some engine oil to the lock cylinder for lubrication to see if it can be unlocked. If it still doesn't work, the lock cylinder may need to be replaced. 3. Problem with the mechanical key: In most cases, the mechanical key doesn't have major issues. If there is a problem, it might be due to an incomplete key that was later duplicated.