Hyundai Kona jerking problems

Filed Nov 2, 2026 · Transmission · CT

The vehicle hesitates, jerks, and shakes when accelerating into traffic. The vehicle is at the dealership right now and they said Hyundai won’t approve replacement of the dual clutch unless it’s its below 60%. It’s currently at 61% on one side and 66% on the other side. In my opinion this vehicle is unsafe to drive but they are forcing my daughter to keep driving the vehicle. This is unacceptable.

Filed May 6, 2026 · Engine · 90,000 miles · OH

The contact owns a 2018 Hyundai Koa. The contact stated that while the daughter was driving the vehicle began to sputter and jerk before stalling. During the failure the oil warning light flashed off and on. The vehicle was towed to the local dealer who diagnosed that the engine had failed due to carbon buildup. The contact was advised that the engine needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure but no assistance was offered. The contact was informed that the VIN was not included in the federal safety agency Campaign Number: 21V301000(ENGINE) The contact indicated that the vehicle had experienced that same failure listed in the recall. The failure mileage was 90,000.

Filed Apr 22, 2026 · Engine · CA

I purchased a 2021 Hyundai Kona in 2023. I own it outright. 2 weeks later my engine seized on the CA 118 in the middle lane & I lost steering & power. I don’t know how I made it to the side w cars doing 80. I was shaking. The dealer refurbished my engine no cost , it was due to the oil consumption problem & the piston ring issues many cars in ‘20 & ‘21 had. I had a Hyundai rep call & offer me $400 to sign off on any future engine issues w this car, & I knew this car was likely to have many other future problems after that offer. I did not accept offer. The transmission is also very jerky on surface streets. Well 2 yrs later, the engine started to seize up again today as I was on my way to a dentist appt. I don’t feel safe in this car. I am a 58 y/o woman w fibromyalgia & the stress of the power just shutting down when I’m driving makes my disease flair up terribly. I’ve had many cars & this is the only 1 I’m truly scared to drive alone in , after being stuck on a mountainside road, w no power, no steering, no one w me. I avoid driving at times, because the PTSD from the first incident is always w me . I love to drive - I had a motor home I drove across this country 6 times. I really want to sell this car, but I don’t want some other person to be in danger either. If I knew Hyundais in certain yrs had these issues, I certainly never would have purchased that particular year/model. That should be disclosed w the cars stats if it is known & actually in several class action suits. No advanced warning came on to alert me either - the engine just seized on a mountainside freeway as I was doing 68 mph. I feel lucky to be here after that.

Filed Feb 16, 2026 · Engine · IN

The car was burning through oil every 14 -21days. Car has been jerking and taking a while to accelerate. Went to machine to see what’s going he suggested I go to the dealership because there’s no leaks visible. But added more oil so I wouldn’t go without oil there was nothing available for me to come in right away and before my appointment my car started to speed up out of nowhere then completely slowed down then jerked until I could find a safe space to pull over. Check engine came on and the code was reading a misfire. Got a tune up still reading as a misfire now just stuck at the dealership playing guessing games with what’s wrong with the vehicle.

Filed Nov 19, 2025 · Engine · MA

The component that failed was the connecting engine rod bearing. The engine is currently in the vehicle located at a hyundai dealership. The connecting engine rod bearing failure came after 1 or 2 engine miss-fires. The vehicle suffered poor performance, I was unable to start the car and properly accelerate the vehicle. The vehicle has exhibited poor acceleration/ jerk acceleration since purchase. However, this incident occurred immediately during initial startup in a parked position. The vehicle rode roughly upon initial observance of this engine miss fire which led us to deem the engine and car unsafe to use. The vehicle was initially towed to an independent service center where they identified the engine missfire code. The vehicle was then towed to our frequently used independent servicer where they said the problem related to low compression in the engine possibly something internal in the engine. Next we towed the vehicle to our preferred hyundai dealership. Hyundai confirmed the engine missfires and connecting rod bearing failure. A claim is in process with Hyundai to assess the vehicle further. The check engine light came on when the engine miss-fired initially. An earlier check engine light came on for a missfire earlier in the 2025 and earlier in 2022 and in 2023 which led to a catalytic converter replacement. While not certain, we think that low compression and poor engine performance has plagued the vehicle since purchase. The vehicle drive jerky(poor/delayed acceleration when pressing the gas) and had early catalytic converter issues prior to 50k miles.

Filed Nov 9, 2025 · Engine, Fuel system · CA

My Kona N Line is not functioning well. Especially after driving for a longer period of time. About 60% of the time, upon letting go of my brake, the car jerks. Going from 0 - 5 mph is the worst. The car definitely hesitates many times. Again, it is when I have driven it for over 10 minutes. I took the car to a service department in El Monte, CA on 11/1. They cannot find the problem. They rode with me and it did not show at that time. They released the car to me. The Kona N has a recall but not my car, the Kona N Line. The recall is for the same problem. I am extremely frustrated. I have another appointment on Tuesday of this week to take to the Glendora service department. I don't know what to do. I am not one to complain but this is not safe. This is my fifth Hyundai. Nothing but good cars until now. Please advise. [XXX] [XXX] . INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jul 20, 2025 · Electrical, Transmission · NY

Dear Customer Care, I am the owner of a 2023 Hyundai Kona AWD purchased brand new from Vision Hyundai West Henrietta, NY. I paid for the vehicle in full with a cashier's check totaling over $31,000. At just 64,000 miles, the vehicle has become undrivable-experiencing loud noises, jerking, and no acceleration. I was driving and car would not move. These symptoms are clearly drivetrain-related and should be covered under Hyundai's 10-year/100,000-mile powertrain warranty . When I contacted the dealership, I was incorrectly told my roadside coverage had expired at 36,000 miles, Hyundai Warranty Escalation Letters which contradicts Hyundai's stated policy of 5 years/unlimited mileage. Additionally, I requested a loaner vehicle due to the urgency and distance (I'm 80 miles away), but no one followed up, leaving me stranded and without any transportation options. I am requesting Hyundai's assistance:

Filed Apr 27, 2025 · Engine · MD

I had taken my vehicle for an oil change in June 2024 when I was advised that the oil level was very low so I had to sign a waiver that they would not be held liable if I have issues. Going forward we continued to check the oil level every 1-2 weeks and added it as needed. We never had any signs of where the oil was going or an oil light letting me know it was low. In November 2024 the motor started to surge or decline in power while driving. It also has times that the car would seize up for a few seconds which caused jerking. I’ve not had it serviced except for oil changes because I believe it will not be an easy fix and very expensive. Besides if I did have it looked at I know it would take an expert in piston rings or whatever other parts that are failing to cause it to consume high amounts of oil. Even though my car hasn’t been recalled yet it has many of the problems I see on this site for this make and model. I’m trying to make it 1 more month then decide if I should trade it in while it still runs at 115k miles.

Filed Mar 10, 2025 · Engine, Transmission · CA

My vehicle has a very rough idle-vibrating at idle or stopped and not shifting properly-gear slipping. There is sluggish acceleration or jerking and the problem worsens while at a stop light/stop sign or at times when making a turn. The RPM goes between 200-300 when I accelerate to go from a stop and the car revs as it slowly hits 20 mph and then jerks into the 30-40mph on the streets. I took it to the dealer January 2025 where they could not duplicate the concern, and all they did was a TCM judder improvement update for the DCT. The problem was dismissed as being an issue associated with the DCT and was told that unless a warning light turned on or my car broke down on me, they couldn't do anything more. The service representative advised that if I am in stop and go traffic and the car starts vibrating or shaking, I should pull over the side and turn off the car for a few minutes before continuing on my way. It has been less than 2 months and I have to take it back to the dealer so they can run diagnostics on it again. Same issues, no warning lights on the dashboard indicating there is a problem, but I am not comfortable driving the car anymore.

Filed May 13, 2024 · Electrical, Engine · KY

Car will restart after it is turned off and left for awhile. Transmission will jerk hard while in gear and driving.