The eighth generation Civic has always shown that the door is not closed and the car cannot be locked.

You can install the following steps to eliminate the failure of closing the door and not closing it.

Open the door, find the door control switch, and press it manually to see if the door warning light goes out. If it doesn't go out, close the door and try the next door, once for each door.

Maybe the door was not closed properly. If closed, the door status light will not light up. Please check whether the door is closed and the door position switch is in good condition.

It is also possible that the trunk is not closed. Even if all other doors are closed, you will still be prompted that the door is not closed. At this time, it is necessary to check whether the trunk is closed.

It is also possible that the sensor switch is broken and the sensor needs to be replaced. Or the sensor fails, just open the door and close it.

An open door can also be a sharp weapon to hurt people. Pay attention to check whether there are potential safety hazards before starting the vehicle. When the vehicle is driving, please check whether the cargo door or door is closed and locked; If the door is not closed properly, please call the police in time, and the traffic police department will contact the owner to close the door and the door in time to eliminate potential safety hazards.