While driving on the Interstate at 70 mph, there was without any warning sudden bang simultaneous with the vehicle leaching severely to the right and at the same time trying to spin clockwise. As I tried to gain control it felt like the vehicle was going to roll side to side. We were pulling a Jeep Wrangler 4 wheels down behind and it was all I could do to avoid the adjacent traffic. I finally was able to crash the vehicle on the right shoulder of the road. We discovered both passenger rear tires had blown out at the same time. There had been no warning from the Tire Pressure Monitoring system. We recently completed the Valve Stem Extension Recall and had what were discovered as damaged rims replaced at that time. The Tire Pressure Monitoring system was intermittently not registering but Freightliner and Winnebago were not in agreement as to whom was responsible for warranty repair. We are the third Winnebago Horizon from a Facebook Group of fifteen or so Horizon units so far that have had crashes from this AFTER the valve extension recall has been completed. THIS IS A SYSTEMIC PROBLEM THAT IS NOT BEING CORRECTED WITH THE RECALL! I am an Engineer and a retired ER Physician - I can tell you that someone is going to get killed from this. It is sudden and catastrophic. My wife and I are lucky to be alive and I am so thankful that I didnât kill other people. Very little shakes me after 29 years of Emergency Medicine. I am shook and afraid to drive this unit.