Two problems related to brake light have been reported for the 2010 Volkswagen Tiguan. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2010 Volkswagen Tiguan based on all problems reported for the 2010 Tiguan.
Intermittend erratic behaviour of several lights (headlights, blinking, rear brake light, license plate light). Dangerous for visibility at night. After investigation turned out to be a partially melted 30 a fuse in the fusebox (30a fuse at the back of the box). This exact problem has been reported by many other vw Tiguan owners on different online fora, thus seems to be a manufacturing defect. May easily cause more severe damage because of short-circuiting or arcing of 30 am circuit.
While driving headlights stopped working, brake light stopped working, and license plate lights stopped working. Brought in to service and they said fuse box overheated causing a poor electrical connection. They told me it was dangerous to drive vehicle, as if I wouldn't have caught it this early it could have lead to more serious issues like power steering or even brakes to go out. Then on 9/4/2012 battery went dead and had to have it replaced. Then on 10/13/2012 the right side headlight stopped working again, they replaced and worked fine until now. On 11/30/2013, headlight stopped working again, checked fuse box for bad fuse, fuses look fine but car will not start. Having it towed in the dealership. Pretty sure it's fuse box again.