Sparky6310

Follow-up from my post from 18 October 2015. I brought my truck into the dealer Monday night. They called me Tuesday afternoon and said that they ran the vibration analysis (PICO?) and it said showed that two of the tires (Continental 20 inch) tested high on road force. They ordered two. They came in on Wednesday and they Road Force balanced them. These read high too. They ordered two more and received them on Thursday. They read high also. They ordered two more. On Friday, they called GM and GM told them that they should put them on the truck and drive it for a while to warm the tires up before they Road Force balance them. GM said that these tires may sit in the warehouse for a while and they can become deformed .They did this and called me Friday afternoon and wanted to keep the truck over the weekend because the vibration was still there. Now they want to investigate issues with the drivetrain . At least I have a dealership that wants to get it right.

Ok. A follow up to my vibration issues. I brought my truck in on Monday night. I received a call Tuesday morning and I was told that I had two tires that were way out of the allowable range on the Road Force balancer. They had to order two tires. They received the two tires this morning. I got a call this afternoon and was told that these NEW tires have the same issue. Now they ordered two more. I told them to order six. Maybe they'd find two good ones out of the bunch. Then again, how long will they stay good. The tires weren't like this when I bought the truck (7300 miles). The problem just became progressively worse. If this keeps going I may have to trade the tires in on a "better"set. "Precision made" truck with cheap, sub-standard tires. Nice. Really helps the reputation. FYI: The tires are Continental CrossContact™ LX20 Tire Size: P275/55R20

I am new to this site. I want to start adding my input to the vibration issues that I just started noticing. I am just returning from a road trip; Grand Rapids, MI to Gulf Shores, AL. I had around 4700 miles on the truck before I left. I will have more than 7000 miles when I get home. I normally drive to work, around 15 miles, each way, at 70 mph. I noticed some vibration and told the dealer about it when I took it in for an oil change and rotation before the road trip. The dealer did a road force balance and said that one of the wheels was out by 1/2 ounce. Up until this trip I was attributing the vibration to a certain stretch of highway. The vibration is very noticeable at 72 mph and up. Magnitude increases with speed. I took videos of my water bottle shaking around in the console. My wife complained about the vibration is the steering wheel, making her hands and fingers numb. I emailed my dealer from Gulf Shores, AL, and the Service Manager gave me a call later in the day. He said that he wants me to bring the truck in on Monday, after work. He will give me a loaner while he takes it out with the vibration analysis equipment. Overall, I liked the truck on this trip (mileage, handling, power, etc..), but the vibration was definitely a sour note to it all. I will post what the Dealer finds.