Shocks went bad front end leaking. Causing issues. Was told by dealer none in stock gm was working on the problem making new shocks, whenever I called to get the shocks I was told over and over back ordered 2 - 3 weeks. For about a year. And $1700.00 To replace defective shocks. Front brake rotors flawed. Lines in rotors showing weak spots had to replace at 53, 000 miles. $250. To replace. Pads no wear. Reused. Roof leaked at satellite antenna causing it to short. $500. To fix and replace. Told them never mind. I looked up the cost of the antenna it was $75.00 for the part so $425.00 for labor that is ridicules.The antenna dried out working fine with no repair. I was a loyal GMC truck person. This is my third truck and one Jimmy suv. I will not look to your product again. Duncan Campbell [protected]