One problem related to turn signal has been reported for the 2012 Volkswagen Tiguan. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2012 Volkswagen Tiguan based on all problems reported for the 2012 Tiguan.
For no apparent reason many indicator lights signal at the same time indicating tire monitoring system not available, license plate light not working, left turn signal not working, brakes lights do not light up, esc not functioning. Trunk also will not unlock. It can be reset (I think, it worked on one episode) by multiple (10-15 times starting and restarting car) as this default has only happened a few times and I have been away from home I am unsure exactly what resets it. Starting and restarting the vehicle this many times can not be good for the vehicle engine etc. The vehicle system did this error a few times over a couple of days, stopped then starting doing it again. Vehicle drives differently when the error occurs. It starts out from a stopped position and the vehicle feels more like it is driving with the rear tires and feels like it is slipping. These defaults are extremely dangerous, had to drive home post snow storm with all of these malfunctions, no brake lights and no left turn signal and no esc. Vehicle only has 28,700 miles on it.