What 107 owners told NHTSA about the 2015 Nissan Leaf Plus (60 Kwh Battery)

BRAKES FAILED UPON STARTING THE CAR. MULTIPLE WARNING LIGHTS ON THE DASHBOARD (BRAKE, ABS, TRACTION CONTROL, AND BRAKE SYSTEM) RESULTING IN TOTAL BRAKE FAILURE - CANNOT STOP THE CAR WITH NORMAL BRAKING EVEN WHILE JUST PUTTING THE CAR INTO DRIVE/REVERSE FROM PARK. STARTED HAPPENING ~3 WEEKS AGO. THE ONLY THING THAT STOPS THE CAR IS THE EMERGENCY / PARKING BRAKE. IF PRESSING THE BRAKE PEDAL ALL THE WAY, JUST BEFORE HITTING THE FLOOR THERE IS A LOUD POPPING / GRINDING NOISE AND THE PARKING BRAKE (?) ENGAGES. THE FIRST TIME, TURNING THE CAR OFF/ON FIXED IT. WE TOOK IT TO OUR LOCAL NISSAN DEALER, THEY SAID "COULD NOT FIND THE ISSUE IN THEIR SYSTEM" AND SAID IT WAS A "FLUKE" AND WOULDN'T HAPPEN AGAIN. HAPPENED AGAIN A FEW DAYS LATER AND TURNING THE CAR OFF/ON DIDN'T HELP, AND THE CAR WAS STUCK IN OUR DRIVEWAY. TRIED REPLACING THE 12V BATTERY, WHICH FIXED THE ISSUE TEMPORARILY. HAPPENED AGAIN A FEW DAYS AFTER THAT AND HAD TO GET IT TOWED BACK TO NISSAN. *NOW* THEY FOUND THE ISSUE IN THEIR SYSTEM AND THINK IT'S THE "DRIVEN INTELLIGENT BRAKE UNIT" AND COSTS $2600+ TO FIX. THEY ALSO SAY THE "MAIN ENGINE HARNESS" MAY NEED TO BE REPLACED FOR SOME REASON AS WELL, COSTING ANOTHER $2400+. HAVE CONTACTED NISSAN USA, THEY TOLD ME THEY DON'T HAVE A RECORD OF THIS BEING A PROBLEM WITH LEAFS (EVEN THOUGH THERE ARE DOZENS OF COMPLAINTS ON HERE) AND REFUSES TO PROVIDE ASSISTANCE. THIS BRAKE SYSTEM IS *EXTREMELY UNSAFE* FOR THE DRIVER & PASSENGERS, AND EVERYONE AROUND IT. MY KIDS COULD HAVE BEEN NEAR THE CAR WHEN IT STARTED MOVING ON ITS OWN EVEN THOUGH I WAS PUSHING THE BRAKE PEDAL. NO ONE NEEDS TO DIE OR GET GRAVELY INJURED BECAUSE OF THIS FAULTY SYSTEM.

NHTSA ODI 11172483

MY CAR WAS PARKED IN THE DRIVEWAY OF MY HOUSE. I TURNED IT ON LIKE I DO NORMALLY AND I THEN I SEE THE RED BRAKE WARNING INDICATOR LIGHTS AND THE ABS WARNING INDICATOR LIGHTS ON THE DASHBOARD. I DIDN'T THINK TOO MUCH OF IT AS I WAS RUSHING TO GET SOMEWHERE. MY DRIVEWAY IS SLOPED DOWN SO WHEN I PUT IT ON DRIVE, I HAD TO STEP ON THE BRAKES. I NOTICED IT DIDN'T WORK AS I DEPRESSED IT ALL THE WAY DOWN. THEN I QUICKLY USED THE EMERGENCY BRAKES SINCE MY CAR WAS SLOWLY ROLLING DOWN. MY CAR IS 3 YEARS OLD, HAS ABOUT 35,000 MILES AND HAS NEVER BEEN IN AN ACCIDENT. THIS WAS THE FIRST TIME THIS HAPPENED.

NHTSA ODI 11141540

I WAS DRIVING IN SOMEWHAT HEAVY TRAFFIC IN AN URBAN SETTING AT 25MPH WHEN, UNEXPECTEDLY, I HAD GREAT DIFFICULTY APPLYING THE BRAKES TO STOP AT AN INTERSECTION. IT TOOK CONSIDERABLE EFFORT, INCLUDING SWERVING, TO AVOID HITTING THE VEHICLE IN FRONT OF ME, AND I PULLED INTO A PARKING LOT AS SOON AS I WAS ABLE, AGAIN HAVING GREAT TROUBLE STOPPING. THE LOSS OF CONTROL OF THE BRAKES FELT LIKE I WAS SKIDDING ON SNOW OR ICE, DESPITE THE FACT THAT IT WAS A FAIRLY WARM AUGUST DAY. THERE WAS AN ACCOMPANYING LOUD, UNPLEASANT SOUND COMING FROM THE BRAKES WHEN I STOMPED ON THEM. I HAD ALSO NOTICED THAT A NUMBER OF WARNING LIGHTS ON THE DASH HAD COME ON ALL AT THE SAME TIME WHEN THE PROBLEM STARTED. AFTER COMING TO A COMPLETE STOP IN THE PARKING LOT, I TURNED THE VEHICLE ON AND OFF MANY TIMES, AND EACH TIME, THERE WAS A LOW BUT CLEARLY AUDIBLE THRUMMING SOUND, PLUS A VIBRATION I COULD FEEL IN THE BRAKES. THE SOUND WAS PARTICULARLY SURPRISING TO HEAR, GIVEN THAT THE VEHICLE IS OTHERWISE AN EXTREMELY QUIET (100% ELECTRIC) VEHICLE. AFTER ATTEMPTING TO RESTART THE VEHICLE ABOUT TEN TIMES, I DECIDED TO LEAVE TO WAIT FOR AWHILE BEFORE ATTEMPTING TO START IT AGAIN. AFTER ABOUT 20 MIN., I STARTED THE VEHICLE WITHOUT TROUBLE AND CAUTIOUSLY DROVE IT HOME ON LARGELY EMPTY SIDE-STREETS.

NHTSA ODI 11122973