2019 Kia Niro EV Powertrain (other) Problems

This complaint supplements a previously submitted report filed today, June 18, 2026, (Original is Complaint Number: 11845044) regarding the same vehicle and condition (TSB ELE234 drive unit rumble noise). The correct VIN for this vehicle is [XXX] — a 2019 Kia Niro EV EX Premium, 138,457 miles. I am filing on behalf of the vehicle owner, [XXX], who has authorized me to act as his advocate. The owner is a Ukrainian speaker and I am assisting with all documentation and communications. In addition to TSB ELE234 (drive unit motor rumble, April 2021), this vehicle is also subject to Kia Service Action SA512 (April 2023): Inverter Coolant/Debris Flushing for the "Refill Inverter Coolant" cluster warning, affecting 2019–2022 Niro EVs produced May 10, 2019 through October 4, 2021. SA512 has also not been confirmed as completed on this VIN. CARFAX records document multiple authorized Kia dealer visits — at Roseville Kia and Folsom Lake Kia — between 2019 and 2022, during the period both ELE234 and SA512 were active and applicable. Neither service action was applied during those visits. This filing requests that NHTSA investigate both the safety implications of the ELE234 drivetrain defect and the broader pattern of authorized Kia dealers failing to notify owners of and apply active service bulletins during routine service visits on affected VINs. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11745054

Incident

Feb 1, 2026

Our 2019 Kia Niro EV (approximately 138,000 miles) exhibits an abnormal rumble/growling noise from the front drive unit while driving slowly in "D" range and when accelerating or decelerating between 0–25 mph. This symptom matches exactly the condition described in Kia Technical Service Bulletin ELE234 (Rev. 1, April 2021): "Drive Unit Inspection & Replacement for EV Motor Rumble Noise," which covers all 2019MY Niro EV vehicles produced from December 5, 2018. To our knowledge, TSB ELE234 has never been performed on this vehicle. The repair involves replacement of motor/roll mount brackets and, if necessary, traction motor or reduction gear replacement. Kia has a documented, tiered repair procedure for this exact issue with assigned labor operation codes. The failure presents a safety concern because drivetrain noise at low speed can precede loss of drive power or sudden drivetrain failure, which creates a hazard in traffic, intersections, and during highway merging. Despite the existence of this TSB since April 2021, NHTSA appears to have few or no formal complaints logged for this specific defect, meaning it has not triggered the regulatory scrutiny it warrants given the documented widespread nature of the issue. I am requesting that NHTSA investigate whether a formal recall of affected 2019 Kia Niro EV vehicles is warranted for this drivetrain defect.

NHTSA ID

11745044

Incident

Feb 1, 2025

Car made loud whinning noise for 6 months, due to defective transmission. KIA refused to fix because car was out of warranty- but has TSB: ELE234. My extended warranty did not cover because it was a known defect from KIA.' Car stopped working, transmission was repaired. Please see below attached 16k invoice.

NHTSA ID

11625464

Incident

Jun 15, 2024

There’s motor rumble due to a misalignment of the traction motor and reduction gear. It’s a known issue with these vehicles and a technical bulletin was issued but no recall. I’ve brought the vehicle in twice and the first time the dealer told me there was nothing wrong. Now a year later they admit it is wrong and is unsafe to drive without a $10k replacement.

NHTSA ID

11612682

Incident

Mar 14, 2024

Constantly get a refill inverter coolant light on dash, have taken it in to dealer and are unable to correct it.

NHTSA ID

11579193

Incident

Mar 30, 2023

This is a published TSB but it doesn't appear when searching for this vehicle. I have to search in google for specific phrases to find this on your website. "DRIVE UNIT INSPECTION & REPLACEMENT FOR EV MOTOR RUMBLE NOISE " Kia Niro EV: [XXX] Hyundai Kona EV: [XXX] Known issue with many customers reporting Kia and Hyundai Motor failures. But since it is not an official recall campaign, it doesn't pop up when researching Kia Niro, Soul, Hyundai Kona, Ioniq EVs. Many consumers report that service centers will gaslight, dismiss, downplay, or falsely blame on brakes, rotors, other unrelated parts. Some have reported they flat out refuse to work on their car even if they bought it there, stating that they don't have technicians trained for EV service. And when/if we are lucky enough for service departments to do repairs, the parts are on backorder. They have to replace brackets/mounts that never resolve issue until finally replacing the motor/gearbox. Often the problem comes back in a few months as the replacement parts don't actually address the root causes. This should certainly be a full recall campaign that the public is made aware of. A final note here on the problem with these extensive complicated long services, is that people are without a vehicle during the whole process. Dealerships and Manufacturers pass the buck, point the finger to each other. Dealerships don't offer loaners, they say check with Kia for rental reimbursement. No one who plans a budget for a new car payment, ever factors in $2-3000 for months of car rental payments that the Manufacturer won't pay until the service is fully finished. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11558343

Incident

Nov 5, 2023

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.

NHTSA ID

11415003

Incident

Apr 2, 2021

Mileage

10,100 mi

TL* THE CONTACT LEASED A 2019 KIA NIRO. THE CONTACT STATED THAT WHILE DRIVING AT 30 MPH WITH THE ACCELERATOR PEDAL DEPRESSED, THE VEHICLE STALLED WITHOUT WARNING. THE FAILURE WAS EXPERIENCED TWICE. THE VEHICLE WAS TAKEN TO KAEARNY MESA FORD KIA DEALER (7303 CLAIREMONT MESA BOULEVARD, SAN DIEGO, CA 92111, (858)560-6965, AND THE VEHICLE WAS TEST DRIVEN HOWEVER, THE MECHANIC WAS UNABLE TO DUPLICATE THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 200.

NHTSA ID

11326198

Incident

Apr 12, 2020

Mileage

200 mi