Brake Light problems of the 2007 GMC Yukon

The transmission was leaking and recalled and that was fixed by gm. The brake lights sometimes over heat and I had to replace the saddles on them. I do not even know they go out but I have people honking at me that I have no lights in the rear. Now with my warranty out and have 86. 000 miles on it the fuel pump is out on the vehicle at a 700 dollar cost. The door knob fell off, I have oil pressure issues all of the time. Last November the drive shaft fell off as I was driving down the road and had to pick it up off of the interstate which someone could have gotten hurt. Brake issues. When you spend 48,000 dollars on a vehicle it makes you sad that gm does nothing to help their customers. Maybe the government should not help them anymore. Today they wanted me to take it to gm and pay 200 dollars for a diagnosis. Just more money in their pocket. I want to another shop for advise. This car is definitely a disappointment nd lemon.