My Silverado has developed a vibration around 4-5000 miles from new. The vibration starts around 60mph and increases in intensity up to and beyond 80mph, the legal speed limit in Texas. The vibration can be felt throughout the cabin in the seats, center console, steering wheel, doors and gas pedal. On my last 3+ hour drive I had to stop midway because the vibrations gave me a headache. That's never happened in any other vehicle ever. After 3 visits to the dealer and multiple road force balance and tire replacements later the dealer states the truck is operating normal and is in spec. This is unacceptable for a brand new vehicle and I'm working on taking it to the next level with GM to deal with the problem.

- Fort Worth, TX, USA

Has a vibration at 65, turns into a bad shake at 75.

- Kirklin, IN, USA

On October 24, 2015 while following my wife home on hwy 182 between West pasco and richland my truck experience what felt like a tire blowout on the right rear wheel. I was traveling the speed limit at 70 mph. The road was level and flat with no debris on the road. I proceeded to change out my tire with the spare, thinking that the tire had a large bolt or nail in it. To my surprise, the tire was intact with no sign of damage. The factory rim had failed. Here are the facts of the situation: '2015 Chevrolet Silverado lt Z71 with 12,366 miles 'smooth highway surface on a clear day traveling straight at 70 mph with no debris on the road 'not hauling or towing 'single occupant in vehicle 'the tire is intact (not damaged at all) 'no damage to the right front wheel or tire or any other part of the vehicle 'severe damage to the right rear rim 'rim impacted the brake system hard enough to bend parts and cause leaking of brake fluid

- West Richland, WA, USA