I bought a used car gx with low miles in a rush. T...

I bought a used car gx with low miles in a rush. The sales experience was good. I got the car without detailing and was told to come back for detailing later. After driving the car for few days found out that the car vibrates at high speed. The suspension was making weird sounds. I talked to the sales person and she told me to come back to the dealership and they will fix the brakes and sounds. I dropped of the car at service they took a week and a half just to tell me that their technician thinks there is nothing wrong with the brakes. I left the dealership and got on highway right after leaving and still had the same problem car still vibrates while braking. Been going to other lexus dealership and never had this type of issue. First time went to mcgrath lexus and had this bad experience. Few days later got a email from manager frank asking how did they do. I mentioned my concern and never got a reply back. Idk if I should blame the whole dealership or some persons working there but it wasn't a satisfying experience. Now I am stuck with a expensive big car with issues they won't resolve. Nothing but bad experience and unsatisfactory car. Wish I took longer to go thru the car and checking if everything was ok. Would not recommend to anyone I know to go to this dealership. A low end brand would have a better service then theirs.

Services: Steering / Suspension, Brakes