If you forget to lock the car, will it automatically lock?

A car with an automatic sensor key will automatically lock it if you forget to lock it. If there is signal interference in the parking lot, even with the automatic sensor key function, the car cannot be locked. Therefore, for the sake of vehicle safety, it is recommended to check it in person and remember to lock the car.

The working principle of the remote control of the car lock: it is composed of two parts: a transmitter and a receiver, just like our commonly used remote control functions. When the owner presses the button on the key, the key end sends out a weak electric wave, and the receiver receives the signal to decrypt it. After decryption, it checks whether it conforms to its own format and encrypted content. If it conforms, it will operate according to the sent instructions. After BCM authentication, the unlocking/locking action is realized by the actuator. As for encryption and decryption, the algorithms used by each manufacturer are different. The two most popular algorithms are MC's KEELOQ and AES algorithms.