Why does the turn signal stay on and cannot be turned off?

[SimonDella]

If the car's turn signal remains continuously lit, it may indicate an issue with the turn signal controller, a damaged flasher relay, or poor switch contact. Here are the reasons why the turn signal cannot be turned off: 1. If the car's turn signal remains continuously lit and both the hazard lights and the other side's turn signal are also malfunctioning, it suggests a problem with the turn signal controller; 2. If the car's turn signal remains continuously lit, it could also be due to poor switch contact; 3. If the car's turn signal remains continuously lit and you can hear the flasher relay clicking on and off, it indicates that the flasher relay is damaged.