I WAS TRAVELING ON I-76 IN COLORADO AND USING MY CRUISE CONTROL. I HAD NOTICED ONE TIME ON THE HIGHWAY THAT WHEN I PUT ON THE BRAKE THE CRUISE CONTROL DID NOT DISENGAGE UNTIL MULTIPLE ATTEMPTS. I WAS ABOUT TO EXIT THE HIGHWAY AT JULESBURG COLORADO HEADING WEST, DISENGAGED THE CRUISE CONTROL BY STEPPING ON THE BRAKE AND WHEN I GOT ON THE EXIT RAMP IT RE-ENGAGED. I PUT IN THE CLUTCH, STEPPED ON THE BRAKE WITH NO RESPONSE. THE EXIT RAMP IS SHORT AND A SINGLE LANE. AT THE BOTTOM OF THE RAMP WAS A SEMI-TRUCK AND I HAD TO STEER THE CAR INTO THE AREA NEXT TO THE RAMP AND I HIT A CULVERT AND THE CAR FLIPPED THREE TIMES. MY DAUGHTER AND I WERE TAKEN TO THE HOSPITAL AND RELEASED THAT EVENING. I REPORTED THIS TO NISSAN, THEY INSPECTED THE CAR AT THE JUNK YARD AND SAID NOTHING WAS WRONG. I NEVER BELIEVED THAT NOTHING WAS WRONG BUT NOW BELIEVE IT WAS AN ELECTRONIC FAILURE. I HAVE PICTURES OF THE CAR FROM THE ACCIDENT. THE CAR WAS A TOTAL LOSS. *TR