What does it mean when a lock symbol appears on the car display screen?

[DelCaleb]

This is the car's engine immobilizer light. If it flashes at a frequency of once every 1 to 2 seconds, it is a normal phenomenon, indicating that the vehicle's engine has entered the anti-theft mode. Vehicle anti-theft authentication: For vehicles equipped with a keyless system, press the unlock button or the keyless button on the driver's side door handle to open the door and deactivate the vehicle's security status. Switch the power to the ON position, and upon successful engine immobilizer authentication, the anti-theft indicator light on the dashboard will turn off. Automatic locking function introduction: After completing the unlocking process, if any door, window, or ignition switch is not opened within 30 seconds, the doors will automatically lock, and the vehicle will re-enter the security status.