Power steering went out suddenly as I was driving my vehicle. Just want to make the point that I find this to be very dangerous as I could hardly turn my steering wheel. I called and Matthews got me right in and the problem fixed within an hour. My only complaint is the car required an update to the powering steering module with no prior warning which as stated before is dangerous. Also, I do not feel I should be charged for an update I knew nothing about. This is not on Matthews Buick but on GM.