NHTSA Complaint #11471498 — 2020 FORD F-450

Vibration at highway speeds aprox. 15,000 miles that continues to worsen to a slight vibration at idle and vibration/bounce/hop at aprox. 30,000 miles, to a violent shake at aprox. 45,000 miles, making it very hard to maintain the control needed to stay in your lane and extremely hard to come to a stop in an emergency braking sitiation. When towing or hauling the defect seems to worsen. The vehicle has been to two dealerships that has kept the vehicle over 90 days, replacing or repairing a large list of components, they are always able to reproduce and confirm the defect, but have not been able to repair it.