NHTSA Complaint #11452554 — 2020 JEEP GLADIATOR

My wife and I took delivery of a brand new 2020 Jeep Gladiator Sport on 4/28/2021. The vehicle is completely stock and has only been serviced by the dealership we purchased it from. In October 2021, we drove over a defect in the highway at approximately 70 miles per hour. The entire vehicle started shaking. It felt like the shaking was coming from the front suspension and steering. We pulled off the highway to the shoulder. As we slowed to about 50 miles per hour, the shaking stopped. There were no warning lights or indicators before, during or after this event. The incident was very frightening and could have led to losing control of the Jeep on a very busy 4 lane highway. We took the vehicle to the selling dealership to have it looked at. The service manager could not duplicate it but a steering damper replacement was ordered. We were able to duplicate the shaking in the same location on 10/21/2021 at 55 miles per hour and again 10/22/2021 in the same location, at 58 miles per hour. It happened several subsequent times. The steering damper was replaced on 12/13/2021. There were 12,887 miles on the Jeep then. The "Death Wobble" still occurred. A new steering gear was ordered by the dealership. The steering gear was replaced 2/14/2022. Mileage now 15,502 miles. As I was driving home from the dealership on 2/14/22, I ran over a transition strip onto the entry ramp to a 4 lane highway. I was going 70 miles per hour. The shaking started and was shaking so hard, my face skin was vibrating as were the numbers on all the gauges. If I were not kind of expecting this, I could have easily lost control. And as I was in a curve, I would have crashed in the very busy highway. The shaking did not stop until I was below 50 miles per hour on the exit ramp. The dealer has not been able to reproduce this. And to this point, the manufacture has not inspected the vehicle. Which they are able to do at anytime.