This message is triggered when the car's computer (ECU) detects a fault with one of the car's exterior lighting bulbs for parking, head or signal lights due to a bulb failure or electrical system issue.
It is important to determine the exact causes so the problem can be fixed accordingly.
- Bulb failure: This is a common cause of this message. Check all the exterior lights to see if any are out.
- Electrical issue: This could be a more complex problem, such as a wiring issue or a problem with the light switch or relay.
- Defective Light Control Module
- Brake light switch is faulty.
