Front Suspension Strut problems of the 2017 Hyundai Elantra

I was driving and would hear a squeaking sound when turning right. Then I started to hear rattling I pulled in my driveway that has a curb and noticed an object sticking out that looks like it should have been screwed into something. It ended up being the front right passenger strutt it exploded through its casing. Not only damaging the casing but the hood of the car. If I would have continued to drive on it I could have loss control of the vehicle and put me and others in danger on the road. I was unaware this was a reoccurring issue with this model until I did some digging on the internet it sounds like a manufacturer defect. Now I was going to take it to Hyundai dealership but they are stating they have to do a diagnostic for 170. 00 which you can visibly see the strutt sticking out the hood. Everyone keeps saying the tire can come off this happened with no warning I am unsure of what to do.