NHTSA Complaint #10222086 — 2007 HINO NV8J

I WAS DRIVING ABOUT 25MPH I HAD MY AUTO GEAR SELECTOR IN 4 GEAR, AND THE EXHAUST BRAKE WAS SET ON. WHILE SLOWING FOR A TRAFFIC LIGHT IT SEEMED AS IF THE AUTOMATIC TRANSMISSION WAS LOCKED INTO SECOND GEAR. THE EXHAUST BRAKE WAS COMING OFF AND ON IN RAPID SUCCESSION. I WAS PUSHING PRESSURE ON THE BRAKES. I SHIFTED THE AUTO GEAR SELECTOR DOWN TO 2ND AND PUSHED THE BRAKE AS HARD AS I COULD. THE TRUCK SLOWED TO LESS THAN 5MPH BUT THE TRANSMISSION WOULD NOT DISENGAGE, WHICH RESULTED IN A SLOW SPEED REAR END COLLISION. AT THE POINT OF IMPACT MY TRANSMISSION DISENGAGED. THE POLICE ARRIVED AND DIRECTED US TO MOVE OUR VEHICLES OUT OF TRAFFIC. THIS TIME WHILE DRIVING A SHOT DISTANCE WITH THE EXHAUST BRAKE OFF THE SAME CONDITION OCCURRED AT A STOP SIGN, LUCKILY THERE WAS NOBODY IN FRONT OF ME AND I TRIED PUMPING THE BRAKES A FEW TIMES WHICH STOPPED THE PROBLEM. I HAVE YET TO VISIT A DEALER BECAUSE OF THE HOLIDAY. IT SEEMS TO ME THAT THE LOCK-UP TORQUE CONVERTER WOULDN'T RELEASE AND THAT IS WHY THE TRANNY WOULDN'T COAST AS NORMAL. AT LEAST THAT MY GUESS. THE TRANNY IS AN ALLISON 3000RDS. *TR