The automobile installs LED,because the original halogen lamp power 5w,LED power 1-3w, the car xomputer will deltect failure, 
need to install LED Warning Canceller to solved.

LED Socket perfect to high class cars those needs canbus function, 
which will not caused any interfere.

A LED bulb with LED Socket built in. safe for Can bus cars like new Audi, BMW, Mercedes, Skoda, VW etc;
Suitable as position/parking bulb or rear reg. plate. Exceptions will always be and in some cars the bulb warning come and pass over time.