Why can the car key lock but not unlock?

[VonLeonardo]

This is caused by a malfunction in the remote control module or poor contact of the unlock button. Check whether the signal reception between the remote control receiver and the central door lock module is normal. If the signal is normal, it is caused by a failure of the central door lock module. The following is a detailed introduction: 1. Solution: The car central lock system is in an electronically locked state. You need to wait for one or two hours for the lock to be released before attempting to unlock it. The second possibility is that the door lock cylinder is stuck and cannot be turned due to prolonged use. If you want to solve it yourself, the only way is to take violent measures, that is, to smash the car window. Otherwise, you can only contact the 4S store for repair. 2. Precautions: Users need to pay attention to releasing the key immediately after the car is started. Do not keep twisting it, as this will damage the engine belt. Try not to hang the car key together with other keys or accessories, because the swinging during driving will gradually widen the gap of the keyhole, which can easily cause problems when starting the vehicle.