How to Resolve Engine Anti-Theft Authentication Failure?

[StGabriel]

Engine authentication failure can be resolved as follows: 1. Open the door and sit in the driver's seat, take out the car remote key, and hold it against the one-touch start button for more than 30 seconds. 2. While keeping the key pressed against the one-touch start button, press the unlock button on the remote key. 3. Press the lock button and trunk button a few more times. 4. If the engine system authentication failure alarm persists after several attempts, take the vehicle to a repair shop for inspection. The reasons for engine authentication failure include the following situations: 1. The internal chip of the key is not matched/locked. 2. Faulty anti-theft read coil. 3. Communication failure between the anti-theft coil and the anti-theft control unit. 4. Internal failure of the anti-theft control unit/communication failure with the engine control unit/lack of matching. 5. Electromagnetic wave interference, etc.