Grumpy 1

What information was the most helpful for reporting this type of issue to the BBB? Not at all what I wanted to put time and effort into, but it seems as though it may be my last resort for any support after being sold a defective $40,000 product.

It's shocking to see so MANY threads, many pages long, with similar issues. Some folks are having 'squeaks' , or other sounds , but most here are referring to the slow speed rear end clunk. I too have a rear end clunk issue with a 2014 Silverado 2500HD, 8 ft bed, regular cab. I bought the vehicle new, and the issue developed around 5k to 7k miles. It happens at parking lot speeds while the suspension flexes over uneven or rough ground. Especially when turning, backing up turning, and when there is no weight in the bed. It's almost a loud knocking like someone is hitting the tow hitch, or the spare tire is loose ect. In other words, a pretty deep loud hitting sound. I have had the vehicle in to the dealership 5 times for this. The noise can be intermittent, though the service department heard the sound clearly the first time I brought it in. Attempts have been made under warranty to remedy this situation with no lasting resolution. I highly doubt they would have done the work mentioned if they had not also heard the clunking. First the technicians thought a rear axle bearing nut had become loose, though seemed surprised to find it to torque spec. They then "tightened everything to torque spec" in the rear end. It ( the noise) persisted. Next they said GM called for replacement of the leaf Springs... mind you 7000 miles. Sound seemed to go away for a few hundred miles , only to return louder than prior. I returned to have the issue addressed again, this time it was said to be a faulty rear shock.. which was replaced. Still, the same clunk persisted. After reporting no resolution, the willingness by the dealer to even acknowledge a problem has stopped. I told them I didn't even feel safe in the vehicle. Then it just gets ridiculous with a different service person telling me that GM calls for leaf spring replacement... wtf, already done that! Then he calls the service manager who tells me that a fluid film application likely had deteriorated the leaf spring shackle bushing material, resulting in the noise, and that was not an approved method by GM for undercoating. Apparently replacement of the leafs did not include replacement of the shackles or pins or bushings. I called bs, and furthermore think they may have been greasing/ or tightening things to the point they would be quiet for about 100 miles, to get rid of me. Have had 2 different mechanics ride with me to 'hear' the noise. Both of which were telling me they had fixed it with repairs mention prior. I never thought it would get to this point with a new $40k vehicle! A bit late, but have contacted GM Corporate, and they are at least willing to 'assist' with the matter. So back to the dealer tomorrow ( 50 miles round trip, and many hours of my time wasted thus far). I am not confident in that a resolution will be found, and won't be at all surprised for Corporate and the dealer to say there's nothing they can/will do further. ( in fact the service manager threw his hands up and walked out saying we are done with this) that's when I called corporate. If I get the runaround AGAIN, I will be immediately calling the BBB to make a claim although have no idea where that will get me. maybe at the least it will help others, with my struggle, and being taken advantage of documented. If they were to ask me, I would ask that the entire rear end be replaced. Or the entire vehicle for that matter. I hate driving it, my old cars don't even make this much noise. The worst is that the dealer is backing away after throwing parts at it with no resolution, and now resorts to pointing the finger at me. It's a one owner adult owned vehicle and I'm the only person ever to drive it other than the technicians. ( who put 11 miles in one day on the vehicle after I told them parking lot speeds only) Is this why the Fords were more money and less available?? I am definitely getting a terrible customer experience thus far, and should I be left hung out to dry on this obviously widespread issue, will NEVER be willing to purchase a GM product again.