NHTSA Complaint #11415003 — 2019 KIA NIRO EV

SINCE THE BEGINNING OF APRIL 2021, AND JUST AFTER THE ODOMETER TURNED OVER TO 10K MILES, MY E-NIRO HAS BEEN EXPERIENCING A BIZARRE BEHAVIOR THAT POSES A POTENTIALLY SERIOUS SAFETY RISK. THIS TAKES THE FORM OF TOTAL LOSS OF ACCELERATION POWER FOR A FEW SECONDS, USUALLY AFTER DEACCELERATING TO A NEAR STOP (USUALLY, BUT NOT ALWAYS, WHEN USING THE PADDLE ON THE LEFT SIDE OF THE STEERING WHEEL TO REGENERATIVELY BRAKE) THEN PRESSING THE ACCELERATOR PEDAL, OR WHEN MAKING A VERY TIGHT TURN (E.G., INTO A PARKING SPACE). POWER RETURNS A FEW SECONDS AFTER THE PAUSE, AND I CAN CONTINUE. I HAVE BEEN DRIVING THIS VEHICLE FOR ALMOST 2 YEARS, AND THERE HAS BEEN NOTHING SIMILAR HAPPEN PRIOR TO THE START OF THIS BEHAVIOR AT THE BEGINNING OF APRIL. THE VEHICLE HAS BEEN GARAGED AND CHARGED NORMALLY AND NO EXTREME WEATHER CONDITIONS OR OTHER FACTORS HAD BEEN PRESENT BEFORE THIS WAS FIRST NOTICED. INSTANCES NOW SEEM TO BE INCREASING IN FREQUENCY THE PAST COUPLE OF WEEKS, HOWEVER. ON 2 OR 3 OCCASIONS, THE VEHICLE ACTUALLY BACKED UP A COUPLE OF FEET (ON LEVEL GROUND), WHICH WAS FRIGHTENING BOTH FOR ME AND THE AUTO BEHIND ME AND COULD HAVE RESULTED IN AN ACCIDENT. ON THE OTHER OCCASIONS, BEING MOMENTARILY UNABLE TO ACCELERATE IS ALSO CONCERNING (FOR INSTANCE WHEN IT DIES HALFWAY INTO A TRAFFIC CIRCLE OR IN AN INTERSECTION WHEN STARTING TO MAKE A TURN). ALTHOUGH NO WARNING LIGHTS WERE INITIALLY SEEN, I NOW GET A "CHECK ELECTRICAL SYSTEM" WARNING WHEN THIS POWER LOSS HAPPENS, SOMETIMES EVEN WHEN THERE HAS BEEN NO LOSS OF POWER TO THE MOTOR. THE WARNING LIGHT DISAPPEARS AFTER THE VEHICLE HAS BEEN TURNED OFF AND ONLY REAPPEARS WHEN ANOTHER INCIDENT OCCURS. I HAVE ASKED THE DEALERSHIP SERVICE DEPARTMENT ABOUT THIS, WITH NO FIRM RESPONSE YET. I'M REPORTING TO DOCUMENT THIS IN THE EVENT OTHERS EXPERIENCE THIS PROBLEM.