My 2012 Buick Enclave has been loaded with problems lately. The air has been repaired twice by the dealer. The power steering pump went out and repaired by the dealer. The paint went bad and was repaired by the dealer. Now the windshield wipers quits when only the left turn signal is activated. It's dangerous to drive if it's raining. Does anyone know if it's the wiper motor or the turn signal causing this. I'm about to give up on this vehicle which was outstanding until 3 months ago when all these problems began.