2023 Kia Niro

My 2023 Kia Niro Hybrid has a recurring intermittent electrical defect. Warnings appear together: Check Hybrid System, Check Engine, Forward Collision, Rear Cross-Traffic, Lane Keeping, Driver Attention, ESC, Brake, Auto Hold. They appear and persist while driving, during which stability control, automatic emergency braking, lane keeping, and related safety assists are disabled. Once, the vehicle would not start and was temporarily disabled, recovering after several minutes. This creates risk from loss of all electronic safety assists in traffic and from the vehicle failing to start when needed. Stored codes show lost CAN communication among multiple modules: U0101, C1611, C1693, U0111, U0164, U0293, U042B, U1341. Confirmed by two Kia dealerships over five warranty visits. V1–2 (Coughlin Kia, Dublin OH): software updates; warnings returned. V3 (Ricart Kia, Columbus OH): inspected, released OK; warnings returned. V4 (Ricart): Kia Techline case [XXX] opened; CAN signal confirmed out of spec at a passenger kick panel connector; dash harness replaced per Techline under warranty (~$2,800). V5 (current): same warnings returned within days, confirmed by the dealership; vehicle is in the dealer's possession for continued diagnosis and available for inspection. Warnings first appeared June 2026 at ~58,500 miles, recurring since. Current mileage ~59,700. No crash or injury. Kia Consumer Affairs case open. Note: attached RO [XXX] says no issues found after repair — outdated; warnings returned within days, vehicle back at dealer. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

While entering into a parking spot at minimal speed, the vehicle experienced an unexpected spontaneous acceleration, causing it to lunge forward, climb onto the curb, and collide with the adjacent building. This resulted mainly in damage to the front end and front passenger door, and the shattering of a large tempered glass window that cushioned the impact. Thankfully, there were no pedestrians on the sidewalk, and the impacted office space was unoccupied at the time of the incident. It is important to note that I was not utilizing the cruise control at the time of the spontaneous acceleration incident and that the vehicle had only been driven 1760 miles since it was purchased, further highlighting the totally unexpected nature of the occurrence. This alarming event of the car accelerating on its own, when it had come to an almost full stop, leads me to believe that the car could pose a significant safety risk. I am deeply troubled by the potential consequences of this spontaneous acceleration; no warning light or collision safety feature turned on. I consider that it is imperative for Kia to conduct a thorough investigation and retrieve the vehicle data to determine the root cause of the incident.

I was 3 1/2 weeks into a four year lease driving this brand new car and it stopped completely in the middle of the road flashing a HYBRID SYSTEM FAILURE warning. I nearly died. It would not move nor turn off. Had to be in the shop for 2 weeks. I don’t feel safe in this car and I want out of this lease asap. Kia is not willing to work with me on this

Forward Collision System: When stopped or at low speeds, the vehicle’s forward collision warning will activate for short intervals (roughly 1-2 seconds) randomly. Hybrid Battery: The vehicle won’t go below 50% battery on the hybrid battery and the engine unnecessarily turns on to charge back to 90% when hitting 50% rather the exercising a wider range on the battery such as 20-80%

While slowing down (without bringing it to a full stop) to make a left turn, car dies, losses all propulsion power just coasts. First it happened intermittently than more often. First it happened in low speed later even with highway speed. After bringing it to a park position and restarting car it will run fine until another incident.