Why is the car lock symbol flashing on the Corolla dashboard?

[ONoah]

The reason why the car lock symbol on the Corolla dashboard keeps flashing is that the anti-theft system is active. When the car doors are locked, the vehicle automatically enters anti-theft mode, at which time the key light will flash continuously. The engine's anti-theft system consists of an electronic chip embedded inside the car key. Each chip has a fixed ID, and the car can only start when the key chip's ID matches the engine's ID. If they don't match, the car will immediately cut off power automatically, preventing the engine from starting. When the car is left unlocked, the electronic anti-theft system enters sleep mode, and the warning light flashes once every 5 seconds. If the light is off, it means the anti-theft system is not functioning and has failed to enter the working state. In this case, you need to check the display settings to find the remote lock mode setting and enable the horn with light flashing when locking.