Kia Niro Engine problems by year

I have experienced two incidents of sudden, severely reduced propulsion while driving my 2024 Kia Niro Hybrid. The incidents occurred several weeks apart. During both incidents, pressing the accelerator did not produce normal acceleration. The vehicle continued moving with very limited propulsion, but the gasoline engine remained at 0 RPM and did not engage when additional power was requested. There were no warning lights, error messages, or other indications of a malfunction on the dashboard. During both...

2022 Kia Niro EX Premium Hybrid was sold as Kia Certified Pre-Owned on August 12 2026 with an active check engine light present at time of purchase. Dealer Calavan Kia West in Lithia Springs GA represented the vehicle as passing a 165-point CPO inspection. Dealer attributed the light to a gas cap issue and cleared the code to complete the sale. Six days later approximately August 18 2026 the check engine light returned. Dealer attempted one repair which failed. As of August 25 2026 the defect remains active and...

My 2023 Kia Niro Hybrid EX has experienced multiple warning messages and unresolved concerns after previous repairs. After the first recall repair, I began receiving intermittent warning messages while driving. The messages appeared briefly and disappeared before I could safely document them. After a second repair, the transmission was replaced. Shortly afterward, the vehicle displayed an overheating warning. I returned to the dealership, but they stated they could not find a problem. While traveling out of state,...

Finally got car back from previous repairs and it was making a loud groaning noise all the time. Took it back to dealership and they said they had to repair the rack and pinion system and the gears were shredded. Employee says they now have another niro with the same problem as my original symptoms when transmission was replaced twice. Car has consistently had problems with the RPMs being incredibly high at low speeds but the dealership can't seem to replicate the problem. Car randomly switched over to manual mode...

Transmission was replaced but then completely shut down as I was making a right turn. Multiple indicators on dash went off and safety errors kept scrolling across dash. Vehicle then wouldn't shift at all. TCM was replaced but vehicle has high RPMs at low speeds. Has been at the dealership now for over 90 days.

Problem 1, Check Engine Light: I purchased the used car on Jan 9 2025, around 23,400 miles from Kia Dealership, capitol Expy in San Jose. Today 05/27/2026, the odometer reads 26, 407 miles. My car is used only twice a week - 20 miles on Fridays, 12 miles on Wednesdays. My car has less than minimum wear and tear and is barely used. I completed my 25K service after Thanksgiving in Nov 2025. I have not even driven 1500 miles and the car is back in for service. Prior to this, within a month of purchasing my car Kia...

The vehicle has a recurring P0420 code ("Catalyst System Efficiency Below Threshold Bank 1"). A boroscope inspection at Ricardo Caballero Kia Santa Isabel (invoice #[[redacted]] dated December 5, 2025) confirmed internal disintegration of the catalytic converter, with physical pieces of the catalyst falling out when the exhaust pipe was removed. This failure appears related to Recall 23V534 (SC276) and TSB PS709 (overheating / coolant boiling issues in 2017-2022 Niro Hybrid models). Motorambar, Inc. (official Kia...

EV motor and drive train have a clattering noise, much like a playing card attached to a bicycle clattering against the wheel spokes. it speeds up and slows down with the acceleration of the motor.

Vehicle with code p0420, Kia dealership technician say: the problem was the spark, proceeded to change it and clear code. Check engine turn on again, the same person say: it's a ring piston, the car was leaked engine oil to exhaust and he see blue smoke, no evidence for part of dealership and dealership never mention the car was consuming excessive engine oil. I mentioned the law of emission to change the catalyst and the boss say: I can't change it but the problem will be come but never do anything to change it....

I am experiencing the same issues as the individual who documented incident #11685147. When I turn the shifter to drive and let my foot off the brake, with auto-hold on, the will still roll backwards, even on flat ground, and not respond to me pushing the gas pedal. I have to put the vehicle back into park, and try again. Oftentimes I have to shut the vehicle completely off to be able to get the vehicle to respond to me shifting it to drive and accelerating forward. This occurs multiple times, but I have dated the incident to be the approximate time when this issue started.

The incident, occurring on [[redacted]], was first submitted by phone, followed by email to [[redacted]] on 27 May with incident description and sketch. I was given the Complaint ID no ODI11663050. However, now when I search for that number, nothing shows up! I have not received any information that the complaint has been investigated and dismissed! In order to publicize this event as much as possible to warn the public about this dangerous safety issue, I have posted the following on my X account ( [[redacted]]...

The contact owns a 2024 Kia Niro. The contact stated that while driving at approximately 65-70 MPH on the highway, the radio panel went blank. The vehicle was blowing cold air on the driver's side while the passenger's side was blowing hot air. The contact stated that there was slush on the driveway and the vehicle slid. There was a triangle symbol with an exclamation mark displayed. The message that the camera had disengaged was displayed. The contact turned off the vehicle, and the vehicle failed to restart. The...

This May of been a cause of a defective Harness Assembly that has taken a few tries to get repaired (Harness is fixed but problem still continues randomly). Since then, my car has stalling problems, randomly, sometimes multiple time in one drive. I have no way to replicate it on my own just that it "can happen" anytime and has subjected me to waiting on the side of the road for the engine computer to "reset" or needs for a tow. Ive been in the dealership at least twice for this with a 3rd this week. Me and the dealer thought it may go away with the new harness installed but it still remains

I received important safety recall letter for NHTSA recall # 23V534. the HCA & or Fuse might need to be replaced . I brought the 2021 Nero to my local Kia dealership, Eagle kia ,Riverhead NY on January 18th. The dealership still has the vehicle & claims that a code came up when they did the diagnostics That requires a part that must be secured to complete the fix for the recall. they claim they are awaiting approval from kia corporate & NHTSA to add to the technical bulletin. But their is no timeframe they have...

Kia issued a recall warning dated September 29, 2023 regarding a fire hazard in our car. The recall stated that remedy was not available. After two months of no remedy from Kia and failure of Kia's Customer Care Center to respond to our requests for help, we went to the Kia dealer in Van Nuys, California to inspect the car to ascertain if it was still safe. The dealer refused to inspect or take any remedial action. To date there has been nothing from Kia to correct the problem. However, the 2023 and 2024 Kia Niro...