I have a 2014 Silverado 1500 LT Z71 4x4, 18" wheels and is has vibration/pulsation issues. It has been to the dealership 3 times, I have contacted GM and opened a case file, and still have no resolution. I hate driving this truck, it is so freaking annoying and aggravating. Has anyone resolved their issues? The last time it was in the dealership, they had it for 9 days, and then they tell me to keep a detailed record of exactly when the vibration/pulsation happens. I stayed calm, agreed to do this, and now I have to bring it back in so another technician can test drive it and "recreate" the issue. They are treating me like I am making this issue up, like I really want to be wasting my time in a dealership!! I paid a lot of money for this truck and it is terrible. It has been the worst purchase I have made, and I just want to know if there is any resolutions? I also am having a clunking in the transmission at low speeds, it sounds like the trans is going to drop on the ground. What a piece of garbage this truck is. I appreciate any feedback and help. I wanted add that the dealer told me that there was no clunking in the trans because there were no codes to tell him so....what in the hell does that mean? So nobody will ever have anything wrong with a vehicle unless a code shows up? I really didn't think much of my radio being suck a piece of crap until I read so many complaints about the same things that I am experiencing. It seems like an endless amount of problems with these trucks and nothing is happening to resolve them. I blame myself for not researching issues with the truck before buying it, if I would have seen all these issues I would have stayed away from them all together. I personally feel that more needs to be done to get these issues publicized. It's no wonder that they were giving such huge rebates on these trucks, GM feels that the average person will just tolerate the issues or give up fighting about them and eventually trade the vehicle in.