KIA Complaints

I am filing this complaint regarding my 2019 Kia Sorento and an engine failure related to Kia’s Product Improvement Campaign/KSDS (Knock Sensor Detection System) campaign. I purchased this vehicle used in 2022. Prior to the engine failure, I was never notified of any Product Improvement Campaign affecting my vehicle. Had I been notified, I would have immediately taken the vehicle to an authorized Kia dealership to have the campaign completed. My engine subsequently failed, and Kia denied coverage, stating that the Product Improvement Campaign was not completed before the engine failure occurred. Kia stated that notices were mailed to affected owners, but they have not provided me with documentation showing when my specific notice(s) were mailed, what address they were sent to, or proof that I was properly notified. I am concerned that affected owners may not be receiving adequate notification of this engine-related issue before a failure occurs. An engine failure can create a serious safety concern, especially if it occurs while driving, and owners may unknowingly continue operating vehicles affected by this condition without having the opportunity to complete the required update. I am requesting that NHTSA review this matter to determine whether Kia’s notification process for this campaign was effective and whether additional investigation is needed regarding engine failures associated with this issue. Vehicle Information: Year: 2019 Make: Kia Model: Sorento Date of engine failure: June 2026 I have documentation from Kia Customer Care regarding their denial of coverage and their statement that the campaign was not completed prior to engine failure.

Engine seized per Kia Inspected by Kia after AAA TOWED AND COULD NOT START CAR warning lamps have been on for over 6 months. Kia inspected and ran diagnostics at that time and said it was nothing to fix just an annoying dashboard malfunction.

On XXX, during a 13 hour return trip from [XXX], while traveling at speeds of approximately 80 mph on the interstate in mountainous terrain with my family in the vehicle, the instrument cluster displayed a message instructing me to stop driving and take the vehicle to service due to a battery problem. After the message cleared, a warning light remained illuminated until the vehicle was shut off and restarted. This occurred three separate times during that trip, beginning approximately five hours from home. I attempted to reach a Kia dealership in [XXX], and was unable to get anyone on the phone. Having no alternative, I continued driving home. On XXX, during a two and a half hour highway drive on flat terrain, the vehicle displayed "Battery system hot: switching to HEV mode." Separately, and for several months, charging at home on a Level 1 charger repeatedly stops approximately ten minutes into the session. A check engine light appears and clears after two restarts. The vehicle was at an authorized Kia dealership from XXX, for fifteen days. Their scan at 90,776 miles found diagnostic trouble code P1B9700, High Voltage Battery Temperature Deviation, stored in the Battery Management System with freeze frame data captured. The dealership drove the vehicle 387 miles, primarily in EV mode in 40 mile increments, and returned it with the notation "no repairs attempted at this time, unable to duplicate concern at this time." No Kia Techline case was opened and no field technical specialist was involved. The freeze frame data has not been provided to me despite written requests. The dealership described its procedure as clearing the history code before attempting to duplicate the concern. No repair has been performed. The vehicle remains in daily use by my wife. Kia Consumer Affairs case 26352951 is open. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I am filing this on behalf of a relative. He was driving his Kia k5 home and he heard a sudden POP. He got it to the side of the road and saw his tread was delaminated and a flap was made on the sidewall. The tires were the factory installed ones with a long life left

Car began throwing a P0304 code in June of 2025. I took it to Brookshire Car Care and they ran a diagnostic, but found nothing to be wrong. In November of 2025, the car began throwing a P0304 code again and this time also had a P0303 code and P0335. The car was taken to Christian Brothers as it was unsafe to drive and the closest mechanic to my location. They found the crankshaft sensor to be damaged due to metallic debris. In March of 2026, the P0304 code came on again and I now took it to the closest Kia dealership. They determined 2 coils and all spark plugs should be replaced. Now, again, the P0304 code is back as of 8/31/26. I have a long list of symptoms that include the metallic debris on the crankshaft sensor, rapid oil loss, frequent rough starts on a cold engine, a metal ticking sound, constant idle vibration, a/c shuddering when car is idle or turned on and in park. The dealership has said they will not acknowledge the findings of Christian Brothers because they are not the ones who made the repair. They said they will do a thorough test on my engine, however they continued to insist it is likely a fuel injector issue. I am concerned there is extensive engine damage and they are going to try to get out of the repair by saying it’s a cheaper fix and not determining the actual cause.

My kia soul has high oil consumption. When informed of the recall for the piston rings, I had First Team Kia look at it. They informed me that they didn't see anything wrong so they cleared the recall. They NEVER performed the oil consumption test. Within 3 weeks, I traveled over 800 miles, round trip, and upon my return home I had to put 4 qrts of oil back in my car. I took my car to Southern Auto. They performed the oil consumption test that revealed the car has high oil consumption, burning 3.5 qrts of oil within 1000 miles. This engine could freeze up at any given moment putting my life and many other lives at risk as I drive this car daily on the interstate for work. The dealer confirmed there is a high oil consumption. No one has inspected this vehicle because First Team cleared the recall without properly testing my vehicle for the said issue. No lights are on the dashboard but I an constantly topping off my oil atleast 1-2 times a week.

Sunroof / moonroof failing close. Driving on roads / high speeds exposed to the elements for a moonroof that will not close leaving me and my family in danger when its our only vehicle and means of transportation. Has the problem been reproduced or confirmed by a dealer or independent service center? - Yes Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? - No Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? - No

I purchased the minivan as a used car last year and I noticed that the airbag light turned on when a passenger would sit on the front passenger seat. I tried to get a diagnosis ever since but many shops that I brought my minivan to didn’t work with airbags. So I eventually brought my minivan to a Kia dealership, Luther Bloomington Kia in Bloomington, Minnesota, and got 2 diagnostics: the first one was on 7/9/26, and the second one was on 8/26/26. Both diagnostics found and confirmed that there is an issue with the occupant seat detector or ocs mat defect, code B149000 dtc (occupant classification system). This matches the Kia recall SC175. This issue is a serious safety concern because the airbag system might not work as it should in the event of a crash. The problem is that the dealership would not repair the issue after diagnosing it without me having to pay for the repairs at my own expense, which by the way I was charged by the dealership for the initial diagnosis. The reason they gave me for that decision is that the issue was already allegedly fixed before I took ownership of the vehicle. They advised me to contact Kia America or Kia Customer Care and ask them to consider authorizing the repair. When I contacted Kia Customer Care, they said that they would not authorize the repairs because my vehicle is out of warranty and that the cost of repairs would be on myself. I asked to speak with a supervisor and they said that there was another way to request a consideration. I later learned that the consideration is called something goodwill. After Kia’s review, I was recently informed that they denied me assistance through goodwill. I requested a denial letter from both the dealership and Kia Customer Care. I have not heard from the dealership at this moment and Kia Customer Care answered my request with an email that said that I would need to get the letter through the dealer, that they don’t give out denial letters. So I decided to escalate this issue to NHTSA.

My kia niro 2018 backup camera takes a few seconds to start up when the vehicle is put in reverse. the time it takes differs from a second to sometimes 5 seconds. I know of accident caused in a McDonalds drive through where someone was backing up but the cam didn't turn on right away and they got in a small accident.

My child is [XXX] old, and as he has grown, I have noticed significant problems with the way he is positioned and supported in this car seat. He frequently sits too far forward and does not appear to have adequate support to keep his head and body in a safe, comfortable position.There have been multiple occasions during car rides when my child has choked or struggled because he is positioned so far forward. The design of the base does not seem to allow him to lean back sufficiently, which causes him to slump forward rather than remain properly supported. This is especially concerning when he falls asleep. His head falls completely forward, and the seat does not appear to provide adequate head, neck, or upper-body support to prevent this.This was not something I noticed when my child was younger. He previously tolerated the car seat without significant issues. However, as he has gotten bigger, the positioning and lack of support have become increasingly obvious. His discomfort has also increased considerably.I have also experienced a separate concern with the installation of the car seat. After connecting the base to the vehicle's lower anchors and tightening the straps as instructed, I have noticed that the straps gradually loosen slightly during a car ride. While the amount of movement may appear minor, I consider any loosening of the installation system during use to be a serious safety concern. A car seat base should remain securely installed throughout the entire trip and should not become less secure during normal use.The combination of these issues is extremely concerning to me as a parent. I purchased this product with the expectation that it would securely restrain and properly support my child during a vehicle crash or sudden stop. Instead, I have observed my child repeatedly being placed in a forward-slumped position, including while sleeping, as well as an installation component that appears to lose some tension during use. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C