THE FIRST TIME THE VEHICLE MALFUNCTIONED, I WAS DRIVING IN A GROCERY STORE PARKING LOT WITH A PERSONAL FRIEND AND SUDDENLY THE CAR'S EMERGENCY BRAKE PROTECTION ACTIVATED JOLTING THE CAR TO A STOP. THE SECOND OCCURRENCE WAS IN A PARKING DECK (DIFFERENT FROM THE FIRST LOCATION) AND THE CAR AGAIN ACTIVATED THE EMERGENCY BRAKE PROTECTION SYSTEM JOLTING THE CAR TO A STOP. I THEN FELT THIS WAS A SAFETY ISSUE AND BROUGHT THIS INTO THE NISSAN DEALERSHIP. THEY CHECKED THE CAR AND CALLED REPORTING THEY COULD NOT FIND ANYTHING WRONG WITH THE CAR AND I SHOULD PICK IT UP. I PICKED THE CAR UP AND CONTINUED TO DRIVE IT UNTIL I SWITCHED CARS WITH A PERSONAL FRIEND WHO USED THE CAR TO DRIVE ONE MILE BACK TO HOME DOWN A 4 LANE ROAD. UPON COMING TO AN INTERSECTION, SHE REPORTS SHE BEGAN SLOWING DOWN AND GOT IN A TURN LANE TO MAKE A LEFT ONTO OUR NEIGHBORHOOD ROAD AND AS SHE WAS APPROACHING THE LIGHT, THE CAR ACTIVATED THE EMERGENCY BRAKING SYSTEM, AGAIN JOLTING THE CAR TO A STOP. SHE STATES DURING AND AFTER THE CAR CAME TO A COMPLETE STOP, SHE KEPT HER FOOT ON THE BREAK THE ENTIRE TIME AND WHILE DECOMPRESSING THE BRAKE, THE CAR THEN JOLTED FORWARD CRASHING INTO THE CAR IN FRONT OF HER. I HAD THE CAR TOWED IN TO THE NISSAN DEALERSHIP AND HAD CORPORATE NISSAN STEP IN TO INVESTIGATE THE CAR. 6 WEEKS LATER THEY INVESTIGATED THE CAR REPORTING THAT NO ERROR WAS FOUND WITH THE CAR AND AGAIN I SHOULD PICK MY VEHICLE UP. I REQUESTED SPECIFIC TESTS AND ASKED THE TESTING PROCESS FOR THE CAR AND WAS ADVISE