NHTSA Complaint #11373896 — 2020 ACURA RDX

ON TWO OCCASIONS THE ACURA COLLISION MITIGATION BRAKING SYSTEM "CMBS" ENGAGED ERRONEOUSLY AND AGGRESSIVELY. 1)WHILST TRAVELING ON AN INTERSTATE IN HEAVY TRAFFIC AT A SPEED OF ABOUT 50 MPH, THE CAR WE WERE FOLLOWING MOMENTARILY BRAKED THEN QUICKLY ACCELERATED. ACCORDINGLY OUR VEHICLE WAS BRAKED, AND UPON RELEASING THE BRAKE TO CONTINUE TO FOLLOW THE FLOW OF TRAFFIC, THE RDX'S SYSTEM MISREAD THE CLEAR ROAD AHEAD AND AUTOMATICALLY BRAKED, HARD, FULLY STOPPING THE VEHICLE. THE VEHICLE BEHIND US SKIDDED TO THE SHOULDER TO AVOID HITTING US, AND IT ALMOST CAUSED A MULTI-CAR PILE UP. 2) WHILE DRIVING ON A TWO-WAY TWO-LANE ROAD THE SYSTEM ENGAGED WHILE ROUNDING A BEND OF ABOUT 30 DEGREES AT ABOUT 25 MPH. A VEHICLE WAS COMING AROUND THE APEX OF THE BEND IN THE OPPOSITE DIRECTION (OTHER VEHICLE BENDING TO THE LEFT) JUST AS OUR VEHICLE ALSO REACHED THE APEX OF THE TURN (BENDING TO THE RIGHT RIGHT); THE CMBS FLASHED "BRAKE", BUT AS NO BRAKING WAS WARRANTED NOR APPLIED, THE CMBS SYSTEM FLASHED "BRAKE" ON THE DASH AND SUBSEQUENTLY BRAKED ABRUPTLY, AGAIN STOPPING THE VEHICLE IN A TRAFFIC LANE WITH A CLEAR ROAD AHEAD. WE CURRENTLY HAVE TWO OTHER VEHICLES WITH FORWARD COLLISION MITIGATION SYSTEMS AND HAVE HAD THAT FEATURES IN THREE OTHER VEHICLES SINCE 2015. I'VE NEVER EXPERIENCED THIS TYPE OF BEHAVIOR.