What does the sun exclamation mark mean in Volkswagen?

[VonLena]

Volkswagen car dashboard appears exclamation mark icon means the car bulb damage fault light warning. The following points should be noted for Volkswagen bulb damage:1, the failure of the lights: not only limited to the bulb burned out, socket corrosion or plug damage such small problems, often need to take professional diagnostic techniques to analyze the root cause of the failure. Even those low-priced cars, their internal and external lamps are controlled by the main computer. And those luxury cars, only their headlights are controlled by 3 computers.2, if the car is equipped with daytime running light system DRL: must first understand how these devices work, some daytime running light system before the engine starts, its daytime running lights can not be opened, there are some daytime running light system, if the parking brake has not been canceled, even if the engine has been started, its daytime running lights still can not work properly.3, if the vehicle is equipped with light-controlled lights: should check the light's operation from the weakest to the strongest state of photosensitivity, and also do not ignore checking the automatic shutdown timer. If the system is equipped with a timer, set it to the maximum delay.