The Jeep Wrangler JL Sport S (2018), has been having steering issues (death wobble) while driving at highway speeds whenever it encounters a bump or potholes at speeds greater than 60mph. The only remedy is to break and slow down to 40mph, this poses a safety hazard on interstates and highways as the vehicles behind have limited time to react and operating this vehicle while it is vibrating is extremely hard and dangerous in traffic. Myself and my wife have been victims of several road rash incidents as the vehicle's behind don't know what is going on when we slow down to stop vibrating, they have honked us and have even followed my wife for 5 miles harassing her on the interstate. We have an infant at home and are concerned for his safety as he travels with us in the Jeep. The car dealer continues to recommend replacing the "steering dampener" as a remedy but having replaced it twice has not fixed the issue. We need FCA to fix this as soon as possible as operating this vehicle in this condition is not acceptable.