NHTSA Complaint #11420161 — 2021 ACURA RDX

On May 9th we were driving on the freeway at around 3 pm on a sunlit clear day. It was a straight section of road. Dry pavement and traffic moving reasonably well. The car in front of us was at least 100 yards in front of us and about the same for the vehicle behind I believe. We were going around 50 mph. The car slammed on the brakes so hard the seat belt restraints engaged as we flew forward, enough so that my wife and I were both sore the next day. Items on the back seat flew onto the floor. If there had been a car behind us we would have been rear ended and potentially a multi car pile up. We took the car to the dealership the next day. They had the car for the day and returned it saying everything is calibrated as it should be. I have called Acura and they set up a case number and a case manager and said they would call me. They have not called nor returned my repeated phone calls. I have asked for a supervisor to call and that has not happened either. Acura’s case number is 12213602 and Simon is the case manager. His phone is 800 999 1009 x87723. The supervisor’s name is Terry. I don’t have an extension number for her. We have grandkids that ride in car seats in the back seat. Thank god this didn’t happen with one or both in the back seat with a car behind us. We have been driving cars with the braking feature on them for 10 years now (Ford and Infinity) and have never had anything like this happen. We’ve had the adaptive cruise pick up on something in the past and ease off the accelerator but never anything like this. The cruise was not engaged when this occurred. In googling this it sounds like we aren’t the only ones having this issue.