KIA Complaints

My 2025 Kia Carnival Hybrid is experiencing repeated electrical and hybrid battery failures. The battery has died multiple times, and the vehicle has shut off while driving, including at higher speeds. When the vehicle shuts off, all electrical systems reset, warning lights flash, and the dashboard displays “User Authorization” notifications. This creates a serious safety hazard for me and my passengers. The defect has occurred multiple times and remains unresolved despite dealer visits. Kia corporate is not responding and is redirecting me back to BBB Auto Line without providing any repair plan. The defect is ongoing and poses a risk of crash, injury, or loss of vehicle control. These symptoms match other Carnival electrical/battery complaints already filed with NHTSA, including sudden shutdowns, battery failures, and electrical resets. I am submitting this report because the defect continues and Kia has not provided a permanent repair.

On Saturday June 18th, I was in a 4 car pile up accident. My kia soul was totaled, and the airbag did not deploy. Following the event, I am seeking medical attention for follow up. Research on the cause for failure to deploy has shown me there was a recall on these car for air bag issues. Please advise if there is a claim to file regarding this recall and accident.

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, on July 6, 2026, the vehicle displayed warnings indicating that the 12V battery needed to be charged. On July 8, 2026, the vehicle would turn on, but the engine would not start or operate. Multiple attempts to jump-start the vehicle failed, including using a portable jump pack, another vehicle, and assistance from a tow truck driver. The vehicle displayed warnings stating that the 12V battery needed charging, the battery was draining, and that the hybrid system needed to be checked. Because the vehicle could not be operated and I was stranded away from home, I am concerned about the reliability and safety of the vehicle. The vehicle has undergone multiple repairs, including a transmission replacement, but I continue to experience warning messages and a loss of confidence in the vehicle's ability to operate reliably. I am requesting that this issue be reviewed for possible safety concerns.

Beginning at approximately 104 miles (shortly after delivery at 75 miles), this vehicle exhibits a persistent vibration felt through the steering wheel, seat, and floorboard at highway speeds — specifically beginning around 55 mph, again at 61–63 mph, and most noticeably between 68–74 mph. A second defect involves rear-end instability where the rear of the vehicle feels loose and sways side to side over bumps and at higher speeds. Five repair attempts across two authorized Kia dealerships have failed to resolve either concern. A Kia Field Technical Specialist attributed the vibration in writing to the vehicle’s design (center console and floor-mounted captain seats). An independent inspector arranged by BBB Auto Line confirmed both defects on July 2, 2026. This appears to be a platform-level issue affecting multiple 2026 EV9 vehicles based on owner reports.

The vehicle is suffering from an extreme internal engine oil consumption defect, burning approximately 3 quarts of engine oil every 500 to 600 miles with no external leaks. The internal oil burning heavily fouled the vehicle's ignition system (spark plugs and coil packs), causing severe engine misfires and a sudden vehicle stall while operating in motion on public highways. This unexpected loss of motive power creates an extreme safety hazard. The local dealership, Paramount Kia of Hickory, refused to follow proper factory Technical Service Bulletin (TSB-ENG219) testing protocols to document the defect, leaving the consumer operating an unsafe vehicle.

My car has had intermittent faults of codes P1B25 and P1CF2 and are showing check EV system on the dash. This happens after about 30-45 minutes of driving and then restarting the car. It has been identified that the power relay assembly needs to be replaced on the vehicle, which lives in the high voltage battery pack. However, Kia does not want to replace this under warranty , claiming that it is not an EV system component. I am not going to pay out of pocket for this repair as it goes against their own warranty information, but continuing to drive the car would be dangerous as it could drop HV power at any point.

Just purchased a used 2021 KIA seltos with about 45k miles. I did my research and checked prior if there were any major issues. Since it showed zero recalls and received relatively good reviews I thought it would be a safe and reliable vehicle. I was wrong.I had the vehicle for only about three months when I noticed the check engine light come on while driving on the freeway. It was solid, however, I thought it was better to be safe than sorry and started to look for an exit. While driving up a freeway interchange the car suddenly started to lose speed. I pressed the accelerator but couldn’t get any power to the engine. As the car started to slow rapidly I pulled over to a narrow strip of the road. This was a dangerous stretch of the freeway because there was virtually no shoulder and cars were accelerating to merge up the rising ramp on the stack. After I came to a stop I put the car in park and turn it off. I then tried to restart the engine but had no luck. The engine would crank but would not start. I was now stuck and getting anxious as traffic began to steadily increase. Cars were flying by at high speeds less than a foot away. I had no choice but to call for a tow truck and patiently wait. I sat there praying that nobody would hit my car. I was fortunate to be safely towed to a service center.The technician performed a borescope and found severe scoring on the cylinder walls directly relating to defective piston rings. The improperly heat-treated piston rings chipped and literally carved deep grooves into the block dropping the compression causing the car to sputter and die.The engine has internal damage and will not start. Needs a new long block (Engine replacement). There is a recall on these piston rings.The dealership sent in their inspection including compression test and borescope images showing the groves and scoring on the cylinder walls. KIA is refusing to cover cost because the car is out of warranty. Safety recalls never expire with warranty!!!!!!

I purchased Dorman part #74015 Brake Pedal Stopper from AutoZone Altamonte after an employee recommended it for my 2012 Kia Soul without checking system compatibility. I installed it that night. On, while driving on a busy road in Orlando, FL, my brake pedal locked completely solid and could not be depressed. I had complete loss of braking and could not shift out of park. I was stranded in live traffic with cars swerving around me. I discovered the Dorman part is ~10mm thick. The correct OEM Kia part 32876-2H000 is 8.0mm. The 2mm extra thickness caused my brake light switch to jam, which physically blocked the brake pedal arm. I had to pry the part out on the roadside to regain pedal movement. This created an extremely dangerous situation. I am now anxious to drive due to fear of brake failure. The part is sold as compatible with 2010-2016 Kia Souls but is too thick and disables the braking system. Vehicle repaired with correct OEM 8.0mm part. Issue has not recurred. I have photos of the failed part and installation.

I brought my 2023 Kia K5 to Citrus Kia in Ontario, California on 2/20/2026 for two safety recalls, including Recall SC356 involving a defective fuel check valve that can cause the fuel tank to expand, melt, and potentially catch fire. When I picked up my vehicle on XXX, I was given a repair invoice stating that both recalls had been completed. Four months later, I received another recall notice by mail for SC356. After contacting Kia corporate, they confirmed that Citrus Kia had never completed the recall, despite providing me with paperwork stating that it had been done. I made multiple attempts to contact the dealership for an explanation but my calls were never returned. Kia corporate also had difficulty reaching the dealership. They ultimately confirmed with Citrus Kia that the recall had NOT been performed and instructed me to have it completed at another dealership. This was not a minor paperwork error. Citrus Kia falsely represented that a serious safety recall involving a potential fire hazard had been completed when it had not. I have the dealership's own repair invoice documenting that they claimed the work was finished. I also have a voicemail recording from Kia corporate stating they were told by Citrus Kia that the recall was actually not completed. What is most alarming is that Kia corporate never asked the dealership why they provided an invoice stating the safety recall was completed when it had not. Attachments: page 3 of invoice from 2/23/2026 shows Recall SC356 as completed; 2 screenshots from NHTSA and [XXX] on 7/23/2026 shows Recall SC356 as not completed. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Component or system that failed: High-Voltage Electrical System / High-Voltage Battery Safety Plug Assembly (specifically covered under Recall SC314 / NHTSA Campaign 24V-358). It is NOT wear and tear as falsely claimed by the dealer. The vehicle is available for inspection upon request at the owner's residence. How safety was put at risk: The vehicle triggers an active "Check EV System" master warning while driving, creating a severe risk of sudden loss of motive power (stalling) on public roads. The high-voltage charging system is also completely disabled, leaving an elderly driver stranded without transportation. Has the problem been reproduced or confirmed by a dealer?: Yes. Rick Case Kia (Duluth, GA) inspected the vehicle from July 20–22, 2026. Instead of resolving the recall defect at $0.00, they falsely mischaracterized the electrical failure as "wear and tear / customer declined repair" and demanded $1,617 out-of-pocket before releasing the unsafe vehicle. Has the vehicle/component been inspected by others?: Inspected by [XXX] Case Kia service department. Opened active corporate case with Kia America (Case #XXX). Independent mechanics have confirmed this is not simple “wear and tear”, but deeper electrical issues that were touched during the recall. Warning lamps, messages, or symptoms: "Check EV System" master warning light and total failure of the high-voltage charging port. Symptoms first appeared shortly after initial Recall SC314 service was performed on June 15, 2026, and worsened prior to returning the car on XXX. Kia claims to have completed Recall SC314 on June 15, 2026. However, the recall work directly triggered immediate secondary failures in the high-voltage charging system. The dealership is now attempting to evade liability for recall-induced damage by labeling it 'wear and tear' and demanding $1,617 to fix a failure caused by their own recall service. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)