00 00... Check horn, headlight flashers and hazard warning flashers: Notes
WARNING: This page is about a different car, the 2011 BMW 750xi, 2011 BMW 750Lxi, 2010 BMW 750xi, and 2010 BMW 750Lxi. However, it is still accessible from the selected car via links, so may be relevant.
Horn
Check function.
NOTE:
In the case of twin-tone fanfares, make sure that both fanfares are working properly.