The vehicle is a rental vehicle. It experienced two incidents of sudden loss of propulsion within the first two days of operation. During both events, the vehicle became completely unresponsive to accelerator pedal input and would not move despite being placed in Drive. I attempted to shift the vehicle into Park and then back into Drive, but propulsion was not restored. No warning lights, malfunction indicators, or system messages were displayed before or during the failure. The first incident occurred while exiting a car wash. The vehicle became immobilized in an active traffic lane and would not respond to throttle input, creating an immediate risk of rear-end collision. Vehicles were approaching from behind and I narrowly avoided being struck. The second incident occurred later the same day in a parking lot while the vehicle was charging. Again, the vehicle became unresponsive without warning and would not move. The intermittent and unpredictable loss of motive power presents a serious safety hazard because it prevents the driver from maintaining control and safely operating the vehicle in traffic conditions.

Source: NHTSA complaint ODI #11719665 · view all complaints for this vehicle at nhtsa.gov

Check electric vehicle system warning light indicator illuminates and car stops driving on highway! A/C and defrost won't work properly and when turned on causes the above warning light and malfunction. Car will not charge at "fast" charging stations and will leave you stranded on highway. I live in [XXX] and the vehicle only does it when humidity is high outside. Issue also causes problems with the 12V battery. SEVERE SAFETY ISSUE WHEN CAR SHUTS DOWN IN THE MIDDLE OF THE HIGHWAY DRIVING AT ANY SPEED. It is the system ICCU (Integrate Charge Control Unit) that KIA has a limited warranty coverage on and should be reviewed for recall. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Source: NHTSA complaint ODI #11744166 · view all complaints for this vehicle at nhtsa.gov

The contact owns a 2023 Kia Niro. The contact stated when parking the vehicle, the brake pedal was depressed, however, the vehicle failed to stop as intended. The contact stated that the vehicle accelerated and jumped the curb. The contact stated that the vehicle was headed in the direction of the building. The contact noticed that a consumer was exiting the entrance of the building. The contact turned the steering wheel in the opposite direction to avoid hitting the consumer. The contact's vehicle crashed into the side of the building. The contact's vehicle was damaged to the front of the vehicle, which included the undercarriage, the battery pack, and both driver's side tires. The vehicle was towed to the dealer. A Police report was filed. No injuries were sustained. The insurance deemed the vehicle a total loss. The manufacturer was made aware of the failure and a case was filed. The failure mileage was approximately 12,030.

Source: NHTSA complaint ODI #11625279 · view all complaints for this vehicle at nhtsa.gov

I have had the car since May 2023 and every winter moisture builds up on my windows on the inside of the car and over night it gets frozen from the inside. There is mold growing on the inside of the door panels, the back hatch window and under the seat and on the seat belts.

Source: NHTSA complaint ODI #11637340 · view all complaints for this vehicle at nhtsa.gov