The vehicle was purchased on August 27th 2014 and had a bad vibration on the drive home. It has a wobble sensation at 35-45 mph felt strongest at 43 mph that feels like it has a bent wheel but it doesnt. When you get to 65-70 mph there is a strong vibration from the truck felt strongest at 68 mph and it only occurs on smooth level roads and even changing lanes does not change the vibration at all so it is not related to the road conditions other then being flat and smooth. The dealer has made five unsuccessful attempts to fix it already and cannot find the problem and cannot fix the problem and has refused to try to fix it anymore. After researching this issue I have found that one out of five GM trucks (Chevy & GMC) have this same issue even though there are not many people reporting this yet. Do not buy or let anyone you know buy a Chevy & GMC truck in the 2014 or 2015 years, 1 in 5 are lemons the vibrations are so bad that it will make you car sick after a few miles and can aggravate existing conditions such as people with back issues. This problem also greatly reduces the trade-in or resale value of the vehicle and will make selling it yourself very problematic if not impossible. If you look on youtube you will see people are starting to post some videos to show this vibration problem.

- Laplace, LA, USA

This truck was purchased at 8 pm on 9/22/2014. When driving on 9/25/2014, the truck vibrated as though I was driving over rumble strips at approximately 40 mph, 55-75 mph. In hi-2 mode in drive, the transmission did not shift smoothly, shifting with a mild clunk at lower gears. We called the dealership and described the issues to a service person and made an appointment to bring the truck in for service on 9/29/2014. The dealer stated that the problems were probably due to alignment issues. On 9/28/2014, I drove the truck and experienced the same shifting and vibration issues. I pulled off the freeway near my destination and stopped at a light. When I attempted to accelerate from the stop, the truck would not move and "revved". it had switched into neutral without any input from me. The transmission shift lever still indicated that I was in drive mode. I drifted into the intersection, unable to get the truck to move. I was able to shift into park, then neutral, and then drive. The truck began to drive and then I felt a strong "thunk" that felt as though I had been rear-ended by a car going at least 25 mph. The truck then drove normally for approximately 150 feet. I had to stop at the light on the other side of the underpass and the same thing happened again, leaving me drifting into an intersection. I was again able to get the truck going after a minute or so, with the same strong "thunk". I called onstar to have the truck towed to the dealership because it is unsafe to drive. On the four other days that we have owned this truck, it was driven only a few miles each day, at low speeds. I am extremely concerned. The truck is unsafe to drive and has less than 300 miles on it. Additionally, some of the issues I have experienced are similar to those addressed by a recall, but this truck's VIN is not listed in the recall.

- Reseda, CA, USA

Since I purchased this vehicle is has had a vibration from 5-20, 40-50, and 68-78. It has been in the service department 4 times for this problem alone with no resolution. General Motors understands their is an issue with this model truck but does not have a solution. The vibration is felt in the seat, the gas pedal, the steering wheel and the rest of the truck. Tires were indexed, rotated, and balanced, along with the drive line specifications inspected and were found within normal limits even thought vibration persists. Other issues I have had were the exhaust squeaking noises when transferring from V8/V4 mode, in which the entire exhaust system was replaced, water leaking from the sunroof and windshield, frame coating peeling off causing the frame to rust, the seat frame shifting, moving and clicking when turning the vehicle, hd radio loses signal intermittently, radio and HVAC knobs were not lit, headlights were misaligned from the factory, and 4 other recalls such as, overheated exhaust components, unwanted transfer case shift to neutral, peek in odometer display incorrect, and transmission oil cooler connections possibly being bad. This vehicle currently has 6500 miles and has been in the service department a total of 30 days so far.

- Loxahatchee, FL, USA

When the truck reaches a speed over 35 mph the steering wheel, the seat, and the entire truck has a vibration. I live in East Tennessee. I purchased the truck in Georgia. It is about a three hour drive from where I purchased the truck to my home. On the drive home I noticed the vibration right away. I thought it may be a tire balance issue so I continued the trip home. The next day I talked with the local dealer and was informed I need 500 miles on the truck before they will work a vibration issue. When I took the truck for service a few days later I was informed that several trucks have this same issue and GM does not know what to do about the issue. The dealer balanced the tires and told me that is all they can do about the vibration. Through searching the internet and talking with other dealers I have found that may parts have been replaced with no help. Drive shafts, axle shafts, wheels and tires have been replaced and rear ends have been rebuilt. Nothing seems to help. Most dealers have worked this issue on several trucks. If this vibration is coming from any part of the drive train or suspension and the part has a catastrophic failure it can cause serious injury or possibly death.

- Seymour, TN, USA

Frame on my brand new 2014 Silverado has major rust issues, Chevy dealers say oh it's normal. It's not normal for a very expensive truck to rust while sitting on a lot. I'm not sure it will be safe in a few years at the rate it's rusting. This is a big issue on several places on the net.

- Meadowview , VA, USA

My 2014 Chevy Silverado 1500, ltz, Z71 started to have numerous issues since this past April. The truck has been in the unethical landers mcclarty Chevrolet in huntsville, Alabama seven times with only the smallest of the issues being fixed. 1st issue was the driver side seat moved when turning left or right. The dealer's service department informed me there was no fix and that the seat was within manufactures specs. The seat moved to the point that the ventilated seat cooler plug disconnected. The service dept eventually "fixed" the seat and reconnected the plug. Lastly the issue I cannot get resolved through GM corporate, dealer service department or the regional GM manager. My truck "shakes" from speeds of 65 mph and greater. The service dept first told me I needed an alignment and have the tire rotated and balanced. The shake still continued, so I complained again to the service dept. This time I was told that two tires where "bad" do to road force and replaced them. The truck still shakes like a stripper so I emailed the CEO of GM on 11 July and assigned an executive liaison to work the issue. Since then my truck has been in the service department twice. Each time I was called a liar indirectly by the service department manager "[xxx]" and the district manager "[xxx]" after they test drove the truck and couldn't replicate the complaint. I had the service dept foreman "[xxx]" ride along with me as I drove the truck and pointed out the "very" noticeable shake at high way speeds. After numerous phone calls to the service dept, GM corporate, I found out that the service dept can utilize a vibration analyzer on the truck. This has not taken place or even considered. I continue to drive the truck with the shaking becoming worse with each mile. Just like the ignition switch problem, GM down plays the issue and lets the problem compound. Information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Meridianville, AL, USA

Severe vibrations at speeds between 58-70 mph. Vibrations pulsate. Vibrations travel through floor boards steering wheel and gas pedal. Truck was taken to dealership. Tires were rotated and balanced drive shaft was determined to be the problem. New drive shaft was ordered. Drive shaft installed yesterday. The vibrations is worse. Taken back to dealership today. Trip number three truck has only 1400 miles on it. Informed GM. They sent me back to the dealership with no solution.

- Springdale, AR, USA

At less than 2,000 miles, the frame and rear axle is rusting through the "protective" wax coating. Where my dealer placed jack points when jacking up the vehicle during pre-sale inspection, there are distinct rust marks in the shape of the jack point. The axle has rust spots increasing in size every week. The frame has rust spots increasing in size and apparent severity every week. The wax coating is often found in flakes under my truck in my garage in the morning. I had a 2011 Silverado that, at 22K, had zero frame rust and it was exposed numerous times to Chicago and minneapolis winters, including the heavy road salt. This new truck has never left Georgia since its purchase. I am concerned about the structural integrity of this vehicle over time if the frame will rust as much as it has in less than 2,000 miles. What will it look like at 50K mi.?

- Stockbridge, GA, USA

On Friday May 23, 2014, I was backing an empty boat trailer down my private boat launch with my new 2014 Chevrolet Silverado 1500 pickup. When I put the transmission into reverse with my foot on the brake the engine suddenly revved up, started spinning wheels, and shot down the ramp hitting three bulkhead pilings eight feet apart, finally wedging the truck into the last piling and stopping before going into the water. The incident lasted less than five seconds and my foot never left the brake as witnessed by a third party verifying the brake lights never went off. I feel obligated to report this to both Chevrolet and the National Highway Traffic Safety Administration. Had this occurred in a public parking area, serious injuries and damage to other vehicles could have resulted. An insurance claim has been made, and after repairs have been completed, the vehicle will be taken to my Chevrolet dealer for analysis for possible defects.

- Beaufort, NC, USA