What is the reason for the red light flashing after locking the car?

[SanNolan]

The reason for the red light flashing after locking the car: it indicates that the car has entered the anti-theft state, meaning the anti-theft system has been activated. Therefore, it is normal for the light to flash when the key is turned off. If the light continues to flash or stays on when the key is turned on, it means the car does not detect a valid key, and in this case, the car will not start. The car anti-theft system is designed to prevent the theft of the car itself or items inside the car. It consists of an electronically controlled remote or key, electronic control circuits, alarm devices, and actuators. The anti-theft indicator light has two states: armed and disarmed, with different flashing frequencies for each state. Generally, about 10 seconds after the car is locked, the anti-theft indicator light will flash in a regular pattern.