2020 KIA NIRO Complaints

I had my oil changed in Dec. 2025. I drove 1000+ miles w/no issue. Engine suddenly seized w/no engine light warning. Oil dumped all at once. Kia refuses to cover under warranty. THIS HAPPENED TO MY CAR: NTSA announced it had launched an investigation into Hyundai Motor Company and Kia Motor Company for problems with their oil pans and oil drain plugs... consumers have filed complaints their engine’s oil drain plug falls out, causing all the oil to drain out of their engine while driving. In multiple tests the oil drain plug was tightened according to factory torque specifications and the tightening was well documented. Yet, testing shows in multiple cases that while driving, the oil drain plug falls within a few thousand miles after the service. In those cases, the crankcase drained completely. The Hyundai and Kia drain plug falls out due to inferior oil pan material and the drain plug gasket. The testing and investigations appear to show that the oil drain plans are made with THIN METAL AND THE DRAIN PLUG MOUNTING IS POORLY REINFORCED. In addition, the oil pan is coated with a thick paint coating the bonds the gasket to the pan, so the gasket does not come off when the drain plug is removed. That gasket issue alone is not why the oil drain plug falls out, but it is a factor in the chain of events. The oil pan is the biggest problem Apparently, the thin metal, along with engine vibrations and expansion/contraction tend to loosen the drain plug without any other intervention. NHTSA is investigating this as a factory defect ... The problem is two-fold. First, even if the repair shop properly torques the drain plug, the oil drain plug falls out on its own. The customer then blames the shop for shoddy workmanship. Second, Hyundai and Kia dealers are telling customers that servicing their vehicle at an aftermarket shop automatically voids their factory warranty. This is totally false & actually illegal under the terms of the Magnuson-Moss Warranty Act.

I own a 2020 Kia Niro PHEV. In October 2024, my dealership performed Technical Service Bulletin SA512 on my vehicle addressing the inverter coolant system. I was not informed at that time that the issue was likely to recur or that periodic maintenance would be required. In March 2026, the inverter coolant warning light returned. I brought the vehicle back to the dealership, where I was told the coolant had crystallized. The dealer confirmed this is a known recurring issue with this vehicle and stated it would need to be flushed approximately every two years since we drive relatively low miles per year (despite driving every day). I was not warned of this at any point. Furthermore, many owners likely drive it short distances every day since it is a plug-in electric vehicle. Kia denied goodwill coverage and I paid out of pocket for the repair. When I contacted Kia Customer Care, representatives gave conflicting information. One confirmed SA512 was performed as a service campaign, another stated it was only a TSB and declined coverage since my car is out of warranty (even though the warranty should still cover the battery and this is an electrical issue). A total case specialist I was assigned to said she would talk to the dealer and call me back but never did. The inverter cooling system is safety-relevant as it prevents the battery from overheating. The problem was confirmed and repaired by the dealership. The component is no longer available for inspection as the repair has been completed. Kia's issuance of SA512 suggests this is a known design issue affecting multiple owners of this model, and they informed the dealership that they could not cover the cost because if they did so, they would have to cover everyone with the same problem (again implying that the issue is quite widespread.)

Engine Seized at 79,000 miles on Kia Niro Hybrid on 3/8/2025. Oil was changed at 78,225 miles on 12/16/2025. No issues with vehicle until approx. 1,000 miles later and just a month and a half later when car suddenly lost power on a highway forcing me to try to safely and quickly navigate off the road. This could have caused risk to my life and other lives. The car could not be restarted. Kia said the drain plug was not screwed on and is refusing to honor warranty despite no issues with the oil change. Notably, in October 2022, the National Highway Traffic Safety Administration (NHTSA) announced it had launched an investigation into Hyundai Motor Company and Kia Motor Company for problems with their oil pans and oil drain plugs. Specifically, consumers and aftermarket service facilities have filed complaints their engine’s oil drain plug falls out, causing all the oil to drain out of their engine while driving. In multiple tests the oil drain plug was tightened according to factory torque specifications and the tightening was well documented. Yet, testing shows in multiple cases that while driving, the oil drain plug falls within a few thousand miles after the service. In those cases, the crankcase drained completely. [XXX] This issue should be investigated for potential recall to keep drivers, passengers safe on our highways. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

One night the tailgate latch began clicking, locking and unlocking itself and then not latching closed, causing the inside light to remain on and the tailgate open indicator to display on the display panel. Then it just went dead and would not open at all, even if using the specific tailgate open key on the key fob. Then a few weeks later while driving on an empty street very slowly as I was turning a corner, with no warning the back windshield suddenly made a loud noise and then spontaneously shattered. I got out and looked around and there was no one else around or any other cars driving by. I did not hear any impact and also had my driver window down and did not hear any shots, and was not able to recover anything from the inside the back of the vehicle or on the ground that could have hit it. Kia will not cover the cost of the back windshield even though I still have 5 years left on the manufacturer warranty, and purchased the dealership warranty. There is a class-action lawsuit against Kia that is for the Telluride model windshields but according to Google my affect some Niros (Sanchez Vs Kia).

When I’m braking at slow speeds, 10mph or less the front left tire braking system locks and makes the car skid. This happens randomly. There’s also a clicking sound made from the regen braking to switching to regular braking. The mechanic replaced the hca assembly and wiring kit from a recall but the car is still having the same issues. This also brings up the codes EBS and AUTO HOLD on my dash.

The contact owns a 2020 Kia Niro EV. The contact stated that the vehicle was repaired under an undisclosed recall on two separate occasions; however, the part failed a third time after the vehicle was repaired. The manufacturer declined to offer additional repairs under the recall. The contact referenced NHTSA Campaign Number: 22V899000 (ELECTRICAL SYSTEM); and associated the failures with the recall. The vehicle was driven to a dealer but was not repaired. The manufacturer was notified of the failure. The failure mileage was 55,000.

There were no symptoms prior to the warning message and warning symbol on the dash. Warning message was "Check EV System". I took my car to the dealer immediately. The dealer has had my car for 3 1/2 months, since Sept 12, 2025. Now the field tech from Kia, on 12/22/25, says that the Electric Power Control Unit (EPCU) needs to be replaced. This could have cause the vehicle to stop in the middle of traffic and cause an accident.

AS AT 11/07/2023 KIA AMERICA KNEW OF HCV/HYDRAULIC CLUTCH ACTUATOR -HEV/HYBRID ELECTRIC VEHICLE CAUSED TRANMSISSION PROBLEM IN KIA NIRO HYBRID 2020 AND KIA AMERICA REFUSED TO REPAIR IT. RECALL COMPLETED 5/27/2025 AFTER POWER TRAIN WARRANTY EXPIRED.

The contact owns a 2020 Kia Niro. The contact received notification of NHTSA Campaign Number: 25V426000 (BACK OVER PREVENTION). However, the part to do the recall repair was not yet available. The contact stated that the rearview camera displayed a black screen while the vehicle was in reverse(R) or the image was frozen. The failure obstructed the driver's visibility, which prevented the driver from safely operating the vehicle. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The failure mileage was not provided.

I had just left my doctor after a protracted visit and was almost late for dinner guests. I noticed a thumping and thought it was the road, but it was a 3/8" bolt in my tire tread.I pulled up at Costco, hoping they could repair it quickly but was told I had to wait 2.5 hours when I had guests coming in an hour. I decided I would have to change the tire. When opening the trunk I found there is no spare, but saw a kit to fix the flat, which I vaguely remember reading about. I'm in a huge hurry to get home but I open the Owner's manual and there is: NADA about the flat repair. So I look at the components. There is a container of the repair solution and a pump with cartoons on it and a hose with a needle to insert into the puncture. After studying the cartoons for about 5 minutes (I am a highly technical, retired 82 year old ex IT professional), I figured out how to connect the can into the pump the hose to the pump and the power cord into the cigarette lighter (how many people still smoke and what would happen if the 12v socket disappears). I was then able to try to repair the puncture but it was for nought as the hole - duh - was too big. I also apparently ruined any chance the repair shop could repair the hole. The tire shop said my repair solution ruined the chance to repair the tire. Heaven help me if I get a flat in the rural boondocks!!!!! My complaint is: 1. What if this happened on a dark 2 lane country road 100 miles from nowhere and I were a single female or aged, frail couple? How would they manage to put together the repair flat kit with the hieroglyphic documentation on the repair kit pump? Could they be stranded for days without food, water, survival gear like coats or blankets? 2. Not supplying a spare doughnut tire could be imperiling vulnerable people. 3. The Owner's manual does not mention tire repair at all.