KIA Complaints

The vehicle is experiencing excessive oil consumption between oil changes, requiring frequent oil top-offs well before the manufacturer’s recommended service interval. No external oil leaks were identified when the vehicle had approximately 91,000 miles. At approximately 118,000 miles, the issue was identified during normal operation and routine maintenance, at which time potential engine-related concerns were noted. Excessive oil consumption raises concern for internal engine wear and the risk of sudden engine failure while driving, which could create a safety hazard. The vehicle has been taken to an authorized Kia dealership and is currently undergoing diagnostic evaluation, including oil consumption testing. At this time, the cause has not been fully determined. No warning lights were present prior to discovering the low oil level.

Rodent damage to floor harness of brand new car. Per service advisor this is a common issue with newer cars due to the use of soy based wiring which attracts rodents.

In April of 2025, it was noticed that my Sportage was consuming oil. There were no leaks or smoke just having to put oil in. Two mechanics stated that’s just Kia. On the night of 1/30/2026 my Sportage had an engine light come on. After the winter storm, I was able to get the code read and it came back as a Cylinder 1 Misfire. In May of 2025 I replaced all coil packs and spark plugs. On 2/1/26 we replaced the coil packs and spark plug. On 2/4/2026, Kia told me I have to replace the engine. I am still paying the vehicle off. This does seem to be an issue with Kia engines 2.4 from what I’m reading.

Incident #1: Car suddenly and without warning had complete loss of power, with gas engine shutting off and only using battery power. Car was traveling at 45mph in morning traffic. Pedal was pushed to the floor, but car would only go a maximum of 20mph. Warning dash lights then appeared saying "Hybrid Malfunction/Pull Over Immediately/Turn off car". I was able to pull off road and turn off car and then turn back on. Car ran normally the 2 miles back home. Incident #2: 2 days later, while driving my kids to school the car again, suddenly and without warning had complete loss of power, with gas engine shutting off and only using battery power. Again, warning dash lights: "Check Hybrid System. Stop Safely!". I did so and car ran normally back to my house (distance approx: 2.5 miles). I immediately called KIA of Beaverton and they said to have it towed right away. Once at dealer, they were unable to diagnose any issues and said that no codes showed up, but also said that the car "deleted codes". Car was in shop for 2 days and determined "car operates as designed." I picked up the car. Incident #3: 7 days later, with kids in the car, again car had complete power loss with no warning. Warning lights again told of "Check Hybrid System. Stop Safely!" Pulled over (in heavy Friday rush hour traffic) and turned off car. Turned on again, but this time car drove for less than a quarter mile before complete power loss happened again with all warning lights. This time we took video of the car not having power, all the warning lights etc. as evidence. We turned off the car and upon turning it on, it instantly had no power. We pulled car over and had to park it that night at a local business for towing. Car was towed again to Beaverton KIA. Again, dealer said they were not able to replicate problem after driving 250 miles on it. Insisted we pick up car, despite numerous comm's saying how unsafe we felt taking it. Dealer claimed KIA told them to remove .5 Qt of oil.

When turning on the car the check engine light comes on. Then when accelerating there is a clicking noise and smoke coming from the engine.

On [XXX] I was in a car accident. When it happened the airbags did not deploy and the seatbelt not locking. This resulted in me hitting my head in on the dash and chest on the steering wheel multiple times and having to go to the er to receive care and be put out of work. This is a major safety risk INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Rear subframe is completely rusted out on one side makes it completely undrivable especially with my young children.

2018 Kia Sorento 2.4 GDI. In late 2024 a Kia dealer performed an oil-consumption test and confirmed the engine was burning excessive oil. In Feb 2025 the engine long block was replaced. Within about 4,000 miles the vehicle began setting P1326 warnings, misfiring, losing power, and struggling to climb hills. On a highway trip from South Carolina back to Indiana, the vehicle could barely maintain 30–40 mph on grades with the accelerator floored while traffic was moving much faster. The check-engine light returned repeatedly. The vehicle eventually died on an exit ramp and had to be pushed out of traffic and towed. I felt it was unsafe to drive but was repeatedly told by dealers that it was “OK to drive” or that the issue was “bad gas.” After visits to multiple dealers, the current Kia service center finally diagnosed a severely clogged exhaust. They report the manifold catalytic converter and underbody converter have broken down internally and are heavily coated in carbon/oil deposits, and state this likely came from the engine burning oil before and around the time of the rebuild. Exhaust temperatures have been recorded at very high levels, and the engine will only run briefly with an O2 sensor removed to vent exhaust; with the exhaust sealed it will not stay running. The dealer has warned there may now be internal engine damage from prolonged backpressure. The vehicle has been undriveable for many months and the failed converters are being retained and are available for inspection. My concern is that excessive oil consumption on these GDI engines is causing secondary catalytic-converter failure, extreme power loss, stalling risk, and possible fire risk from overheated exhaust components, even after engine replacement.

Formal Complaint on Seized Headlight Sockets and Kia’s Obstruction of Essential Safety Maintenance 1. Incident & Discovery of Defect: I am the owner of a 2015 Kia Sorento. Recently, one of my headlights failed. Upon attempting a routine bulb replacement, I discovered a critical hardware defect: the bulb socket is physically seized. It cannot be rotated or removed by any standard manual force. This is not a simple wear-and-tear issue; it is a mechanical seizure of a component that must remain accessible for safety maintenance. 2. Kia’s Refusal of Technical Guidance: To resolve this without damaging the entire assembly, I contacted Kia America (Case #[XXX]) specifically requesting technical instructions or any written explanations to safely disengage the seized unit. Despite multiple attempts via phone and email, Kia explicitly refused to provide any technical guidance, flatly stating they are "not technically trained" or authorized to share such information. 3. Obstruction of "Right to Repair" & Safety Risk: I firmly believe that a vehicle owner has a fundamental "Right to Repair," especially for essential safety components like headlights. By withholding basic maintenance instructions, Kia is intentionally obstructing my ability to maintain a street-legal, safe vehicle. Driving with a non-functional headlight is a Critical Safety Hazard that severely impairs visibility and creates an immediate risk of fatal accidents—yet Kia has chosen to leave me in this dangerous situation. 4. Exploitative Business Practice & Systemic Failure: This appears to be a deliberate and Exploitative Business Practice. By failing to provide a manual and refusing technical support for a defective, seized part, Kia is effectively forcing consumers into a "forced monopoly" where we must pay for expensive replacements at authorized dealerships for what should be a low-cost, simple bulb change. 5. Request for Investigation: I request that the NHTSA initiate a formal investigation. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF I

We bought this 2021 Kia used and within a year the engine blew. There was a defect in the motor. It had just passed the warranty mileage.