What does it mean when there is a car with a lock on the dashboard?

[Una]

Dashboard displays a car locked with a lock indicator, which is the symbol of the anti-theft lock. Here are the relevant details: When the light is on: If the light turns off by itself after a while, the car can start normally; this indicates that the vehicle's engine has entered the anti-theft state, and the engine immobilizer has started functioning. If the icon keeps flashing or remains constantly lit and the car cannot start, it means the key is invalid and the chip needs to be matched. Working principle: The operation of the car anti-theft device mainly relies on the uninterrupted power supply from the battery for 24 hours. When the ignition key is inserted into the lock cylinder, the transponder chip inside the key sends an electronic code to the transponder key amplifier located in the ignition switch lock cylinder. The signal is received by the coil of the transponder key amplifier, amplified by the amplifier, and then received by the transponder key control unit.