What is the reason for the Volkswagen car displaying the anti-theft lock activation?

[DeAriel]

Volkswagen car displays the anti-theft lock activation because the car needs maintenance. Volkswagen anti-theft system: Volkswagen's anti-theft system uses central locking, and Volkswagen has added an engine immobilizer system, which is an electronic anti-theft feature, greatly improving the vehicle's security. Engine immobilizer system: The engine immobilizer system consists of an electronic chip embedded in the car's ignition key. Each chip contains a fixed ID (equivalent to an identification number). The car can only start when the key chip's ID matches the ID on the engine side; conversely, if they do not match, the car will immediately cut off the circuit automatically, preventing the engine from starting.