Hello all and good morning. I have a 2014 Silverado and successfully got a buy back from GM. When I first noticed the vibration around 40 to 50 miles per hour I went through the whole Ranger of going back to the dealership Time After Time. After five sets of new tires, all different brands, new differential and other stuff I finally decided to cut my losses. I contacted the 800 number and then GM owners manual and I opened a case with the customer care Department. Now while they proved to be quite useless, it helped my case. I've been contacted the Better Business Bureau Auto line division. This was an absolute lifesaver. Within a week they had a buyback deal on the table with GM. The arbitrator at Better Business Bureau didn't like that deal so she fought for two weeks for an exceptional deal. I accepted the buy back because I did not want to go to mediation in court. I also have filed a certified letter with the attorney general that's part of the process in Florida. I only owned my truck for about 3 months and in that time I successfully got the buyback, but the deal was that I had to buy any GM vehicle from that dealership. My truck was labeled a lemon and it was shipped back good Michigan. The dealership didn't want any part of it. I opted to get a GMC Acadia after much research on consumer reports. It's very disheartening because I've had Chevy trucks for 12 years but I think I'm done with them. At least until after 2019 from what I've read on this form. To help with the buyback I kept very very detailed notes every invoice every conversation date time. I had to fax all of this information to the arbitrator at Better Business Bureau. And because there was so many invoices and so many phone calls and so many phone records it assisted in me getting the buy back super fast. I'll mention it again, I live in South Florida. I'm just reposting this for anyone who wasn't on this form back in March or April of 2015.