What is the reason why the key anti-theft light stays on but the car can still start?

[DiNoah]

It indicates there might be an issue with the car's anti-theft system or the vehicle key. Below is relevant information about the anti-theft light: 1. Concept: It reminds that the vehicle's anti-theft system has been activated, and the vehicle is in a secured state. 2. Function: If the light is flashing, it means the car's anti-theft system is engaged. If the car's engine anti-theft light flashes at a frequency of once every 1 to 2 seconds, this is normal. It indicates that the car's engine has entered the anti-theft state, and the engine anti-theft function is working properly. This is a normal phenomenon, and there is no need for the owner to deactivate it. Moreover, the power consumption is minimal, and it poses no problem to the battery.