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Acceleration & cruise control

Kia EV6 Acceleration problems by year

24 complaints filed with NHTSA about the Kia EV6's acceleration & cruise control. Unintended acceleration, surging, throttle problems and cruise or adaptive cruise faults.

Acceleration complaints by model year

YearAcceleration complaintsCrashesInjuriesRecalls
20252100
20245000
20238000
20229110

Latest EV6 acceleration complaints

2024 Kia EV6Electrical systemAcceleration & cruise controlEngine & cooling

Dear Kia Customer Care, I am writing to formally report a serious and recurring safety issue with my Kia vehicle. I have repeatedly experienced a "Power Limited" error while driving, often accompanied by a turtle icon and a "Check Electric Vehicle System" warning. On multiple occasions, the vehicle has suddenly lost power and stalled in the middle of the road. This is extremely dangerous and has put me and other drivers at risk. A vehicle should never lose propulsion unexpectedly, especially in active traffic...

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conditions. I request an immediate investigation into this issue, along with a clear explanation of the cause and a permanent fix. Please treat this matter with urgency, as it directly concerns driver safety. Kindly confirm the next steps and the earliest available service appointment. Thank you,

Filed Incident Electrical system · Vehicle speed control · EngineNHTSA 11767230
2023 Kia EV6Transmission & drivetrainElectrical systemAcceleration & cruise control

While driving southbound on the [[redacted]] in a rented 2023 Kia EV6 from The Hertz Corporation, picked up in [[redacted]] on [redacted], the vehicle entered "Power Limited" mode without warning. The vehicle lost normal propulsion and decelerated from highway speed to a crawl, forcing 4-5 emergency stops onto the highway shoulder over several miles while semi-trucks passed at 70+ mph in live traffic, with two minor children in the vehicle. The vehicle was ultimately abandoned at a highway rest stop on Hertz...

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Roadside Assistance's instruction and towed. This vehicle was subject to three NHTSA recall campaigns for the ICCU defect that produces exactly this failure mode: 24V057000 (SC295, driveshaft, notice mailed [redacted]), 24V200000 (SC302, ICCU 12V charging failure/Power Limited mode, notice mailed [redacted]), and 24V867000 (SC327, expanded ICCU remedy superseding SC302, notice mailed [redacted]) - all mailed well before this vehicle was rented to me on [redacted]. Under 49 U.S.C. §30120(i), a rental company may not rent a covered rental vehicle subject to an unremedied safety recall. I am requesting NHTSA use its inspection authority under 49 U.S.C. §30166 to determine whether Hertz completed the required SC327 remedy on this vehicle before renting it to me, and to review Hertz's fleet-wide recall compliance for its Kia EV6 inventory. This does not appear to be an isolated incident: NHTSA complaint ODI [redacted], filed [redacted], describes a near-identical failure - a rented 2023 Kia EV6 (Dollar Rent A Car, a Hertz-owned brand) losing power and shutting down multiple times on the freeway during a single trip, also towed. Two renters, two Hertz-family rentals, same defect signature, five months apart. Hertz has been on written and verbal notice of this incident since [redacted], and I sent a formal written demand on [redacted] with a response deadline of [redacted]. As of this filing, Hertz has not responded. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Incident Power train · Electrical system · Vehicle speed controlNHTSA 11756869
2025 Kia EV6Body, doors & structureAcceleration & cruise controlCrash

While maneuvering my Kia EV6 into my garage, the vehicle accelerated unexpectedly and struck the garage wall. I believe the acceleration may have been unintentional or due to a malfunction. I request review of any vehicle event data

Filed Incident Structure · Vehicle speed controlNHTSA 11738339
2023 Kia EV6Electrical systemAcceleration & cruise controlFuel system

I was driving 40mph and received a yellow error message along the lines of "electrical system issue, please check" and my speed was limited to 25mph. After trying to get the car to a safe location (as I was on a narrow two-lane road), the error changed to a blinking red error and my speed was further limited to 12mph. I was unable to get the car one mile to the dealer for service, so I stopped the car in a parking lot and had it towed to the dealer. The dealer diagnosed the problem and replaced the ICCU (2nd time on this car) and the 12 volt battery.

Filed Incident Electrical system · Vehicle speed control · Fuel / propulsion systemNHTSA 11728041
2024 Kia EV6Acceleration & cruise controlFuel system

Driving car and then all of the sudden a critical battery alarm appeared and I lost the ability to go above 23 mph. It ended up being the ICCU that needed to be replaced.

Filed Incident Vehicle speed control · Fuel / propulsion systemNHTSA 11725189
2022 Kia EV6Electrical systemAcceleration & cruise controlFuel system

While driving at speed, I heard a pop noise from the car. A few seconds later, I received notification to check vehicle electric system. The vehicle slowed down despite my increasing throttle input. I was able to limp to a parking lot where it was flat bed towed. This experience matches a previous issue I had when it was diagnosed with an ICCU failure with the same vehicle.

Filed Incident Electrical system · Vehicle speed control · Fuel / propulsion systemNHTSA 11718449
2025 Kia EV6Transmission & drivetrainElectrical systemAcceleration & cruise control

Erratic behavior before pulling out of parking lot: STOP vehicle check power, check 12V battery Stop safely engage parking brake. All dash lights started flashing, going black, power couldn't be maintained, thankfully not on highway yet. Complete car failure, had to have 2025 EV6 jumped 4 times, battery still showed 41% charged, couldn't keep charge to even get car in neutral for tow or doors locked. After each jump from tow company, power would last for less than 3-5 seconds, then dead, completely dead vehicle nothing worked.

Filed Incident Power train · Electrical system · Vehicle speed controlNHTSA 11708370
2024 Kia EV6SteeringElectrical systemAcceleration & cruise control

Kia has a known ICCU issue with several of their electric vehicles. Mine went out yesterday creating an extremely dangerous situation on the road. After it blew, I lost the ability to accelerate or steer. This was obviously very scary for me and the drivers around me. I feel very lucky to have not been hit by another car. Although Kia is replacing these, this does not guarantee a fix. That is to say, the ICCU has the potential to blow again after replaced because the core issue is not something that Kia group has...

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reengineered. I should not have to fear getting into my vehicle and wonder if it will blow again. I hope the government steps in and conducts an investigation into this. It's only a matter of time before someone, unfortunately, will lose a life over this.

Filed Incident Steering · Electrical system · Vehicle speed controlNHTSA 11706700
2024 Kia EV6Acceleration & cruise controlFuel system

I was driving on the freeway steady at 72mph and the car suddenly accelerated on its own. It hit 90 within seconds and I had to step on the break for the car to slow down.

Filed Incident Vehicle speed control · Fuel / propulsion systemNHTSA 11703834
2022 Kia EV6Electrical systemAcceleration & cruise controlDriver assistanceCrash

Prior to midnight on 9/25/2025 I stopped at a Sheetz in Stephen"s City , Va to charge my 2022 Kia EV6. Upon pulling into the charging area I discovered construction fencing around the area with the chargers removed. I then drove to the other side of the store and parked next to the building to take advantage of the lighting as I scanned my phone app for alternative chargers in the area. SUDDENLY, within the blink of an eye, my car lunged forward at MAXIMUM speed. It came to a sudden stop , prior to hitting the...

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glass and brick wall of the building. I was stunned. My first reaction was to try to go into reverse to back away from the building and then I noticed people coming toward me. I rolled the window down and heard them ask if I was ok , if I needed help calling 911, and then they began to insist that I climb down out of the car as they feared it would catch on fire. I did not understand what they meant initially, until I realized I was LOOKING DOWN at them. With assistance, I got out of my car and realized it was impaled upon the metal barrier post located in the middle , front of the parking space. The local sheriff dept responded and after putting me through all the DUI tests/exercises realized that I , indeed , was sober and not responsible for the incident. The deputy called Clem's Garage/Towing who arrived 30-45 min latter with a standard tow truck - I tried to explain that tugging at my car from the rear would not release it from the pole ( the rear of the car pointed toward the pavement while the front pointed toward the sky) and that continuing to tug would only do more damage (I wanted to prevent my car further damage). He eventually called another company who arrived with a large crane-like vehicle that lifted my car off the pole. The top portion of the pole was missing and apparently stuck in my car . My car was then towed to Clem's holding yard.

Filed Incident Electrical system · Vehicle speed control · Forward collision avoidanceNHTSA 11690621
2022 Kia EV6Electrical systemAcceleration & cruise control

My 2022 Kia EV6 has repeatedly shut off while parked and while in motion, placing myself, my [[redacted]] child, and other drivers at serious risk. The vehicle's Integrated Charging Control Unit (ICCU) failed and was replaced, but the replacement ICCU also malfunctioned. This second failure caused a near-collision involving three vehicles. A Ford F-150 had to swerve off the road to avoid hitting me. The most recent incident occurred while dropping off my son, when the vehicle lost all power in traffic. Kia later...

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confirmed that they could not guarantee this issue would not happen again. This statement came after I notified them of the near-accident and the ongoing shutdowns. Despite this, Kia has refused to buy back the vehicle or provide a safe resolution. The vehicle has been out of service for over 30 cumulative days and has undergone two ICCU replacements and one 12V battery replacement. Kia issued a recall notice for the ICCU in December 2024, but the issue persisted even after recall servicing. The defect has been inspected and confirmed by Kia dealerships, and all repair documentation is available. There were no warning lights or alerts before shutdowns. The system fails randomly and without warning, making the car unpredictable and unsafe to operate. This is an ongoing, unresolved issue that poses a danger to myself, my child, and the general public. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Incident Electrical system · Vehicle speed controlNHTSA 11660751
2023 Kia EV6Electrical systemAcceleration & cruise control

On January 27th I was driving home on I-495 in the far left lane going about 70MPH when the electrical warning light came on. Telling me to stop the car and take to the dealership. While I was trying to get over into my far right lane, the car went from 70mph to 25 mph in about 40 seconds! Cars were flying all around me! It was terrifying and incredibly dangerous! The dealership discovered my ICCU had failed. This vehicle has a fatal flaw that is going to get someone killed.

Filed Incident Electrical system · Vehicle speed controlNHTSA 11653379
2023 Kia EV6Electrical systemAcceleration & cruise controlFuel system

While driving my car a warning flashed stating "check electrical vehicle system." Pulled over, contacted Kia of Abilene and asked if we could drive the car to the dealership. While on the phone another warning flashed ""Stop vehicle and check power supply." Attempted to drive car, "Limp mode or turtle mode" occurred and the max speed for the car was 25mph, sudden loss of acceleration. Made it home, which was approximately 2 miles away, and it seems like the 12V battery was draining quickly. Eventually the vehicle...

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stalled at home and became unresponsive, no power. Contacted roadside assistance and the vehicle was towed to Kia of Abilene. All of this occurred March 29th at approximately noon. The dealership finally contacted us today, April 2nd, and notified us it was an ICCU failure and the part wasn't available with no foreseeable time-frame for repair. The car is absolutely inoperable!

Filed Incident Electrical system · Vehicle speed control · Fuel / propulsion systemNHTSA 11652439
2022 Kia EV6Electrical systemAcceleration & cruise controlFuel system

Regarding NHTSA Recall No. \/ MFR Recall No. : 24V-867 \/ SC327, I have contacted Kia America by email who is avoiding to take action in rectifying the SC327 defect. From March 11th to March 15th 2025 I have emailed Kia several times to address the issue of my Kia EV6 car, the lack of response from their side compels me to lodge a complaint with you. Please intervene in my case with Kia. Below is the latest correspondence from Kia.

Filed Incident Electrical system · Vehicle speed control · Fuel / propulsion systemNHTSA 11649163
2022 Kia EV6Acceleration & cruise controlFuel system

Vehicle went into limp mode and was unable to exceed 20 mph on a 45 mph street. Was told by the dealership the the ICCU unit, which was under recall, would need to be replaced. The dealership has had my vehicle for over a month and is becoming increasingly unresponsive.

Filed Incident Vehicle speed control · Unknown or other · Fuel / propulsion systemNHTSA 11648957

Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data

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