What to Do When a Car Door Lock Cannot Be Opened with a Mechanical Key?

[VanSamantha]

Solutions for a car door that cannot be opened with a mechanical key are as follows: 1. Inject some engine oil into the lock cylinder to lubricate it and then try again. 2. Check if the car is in anti-theft lock mode, as the mechanical key cannot open the door in this state. The mode must be deactivated first. 3. Replace the lock cylinder. 4. Use the remote key to open the door. 5. Contact a professional for inspection and repair. Here are some precautions when the car mechanical lock cannot be opened: 1. In most cars, the central locking mechanism uses mechanical latches to secure the door. 2. If the door lock is not engaged, the door can be opened using the exterior door handle or the door lever.