I recently purchased new tires August 14. On August 30th my right front tire went flat as I was putting air in the tire I noticed a knot and air coming out from the rim.I had the tire replaced this past Saturday Sept 14th on Sept 17th the tire I had replaced did the same thing.

- Carrollton, GA, USA

The contact owns a GMC 2008 Sierra 1500. The vehicle had Michelin ameritrac tires, tire size P245-70-R17. The contact was driving approximately 55 mph and the road performance was rough with a noise coming from the tires. The snow and mud tires were previously purchased at the dealer. The failure mileage was 8,900. The current mileage was 12,000.

- Toson, AZ, USA

Truck shakes between 45 and 60. Does it all the time. Took to GMC dealer and they check it out and said it was the way the truck was get used to it. Called detroit and got the same thing. It's not right. It all started with around 14,000 miles.the truck didn't do it at all until then. The service station that I use to service it found the tires to be out of round and the sidewalls were coming undone. Put a new set of tires on and it helped a little bit but not a great deal. They also told me to put weight in the box to help. I tried and it didn't help. All I want is the truck made right.

- Moravia, NY, USA

The contact owns a 2008 GMC Sierra 1500. The vehicle is used to haul a travel trailer that weighs 6,500 pounds. The vehicle is designed to haul up to 8,500 pounds. The manufacturer placed size 245/70/R17P passenger tires on the vehicle, which causes the vehicle to swerve and could possibly cause a crash. The vehicle requires minor truck tires, size LT245/70/R17. The manufacturer stated that the tires currently on the vehicle are the correct size; therefore, they will not be replaced by the dealer. The failure mileage was 650 and current mileage is 3,688. Updated 11/12/08 the consumer stated the tires were replaced. Updated 11/18/08.

- Goolettsville, TN, USA