While traveling at highway speed crossed a road expansion joint and the vehicle began to shake. On this particular trip of approximately 250 miles, It only occurred at these higher speeds. Slowing down eliminated the ‘Death Wobble.’ A TSB has been issued that possibly addresses this issue. A review of the internet indicates that this problem has been persist and prevalent for this car model for over a decade, and is a safety issue. This should trigger a recall to address this problem.