Can't the car be locked if the battery is dead?

[DeMila]

You can lock the car even if the battery is dead. The relevant explanations are as follows: Introduction: If the car battery is dead, you can lock the car doors using the mechanical key. For cars with smart keys, the mechanical key is usually hidden inside the remote. Additional Notes: Some cars have hidden keyholes for the doors. You may need to use the mechanical key to pry open the cover to reveal the keyhole underneath. To prevent damage to the car's paint, you can wrap the key with paper or cloth. This design helps maintain a more aesthetically pleasing appearance for the vehicle. The working principle of mechanical door locks involves turning the key to mechanically drive the gears to open or close the door. The basic components of a mechanical door lock mainly include the door lock switch, door lock actuator, and door lock controller.