KIA Complaints

Sunroof failure, spontaneously exploded. Fortunately I was not driving the car when it happened or could have caused an accident. Went to my car one morning and the sunroof looked like an earthquake for no reason. No damage, car was parked my driveway and was definitely not vandalism. Dealer said to contact Kia directly and report the incident to them because they would get nowhere with the factory and I should contact them. I also had a left front drivers door glass break that I originally thought was vandalism but nothing penetrated the glass, no rock or anything found and 2-3 video cameras I reviewed many time and not see anyone breaking the window. Makes me think it is the same problem with some kind of defective glass.

have had a serious issue with my 2025 Kia Niro PHEV. I first reported the problem to the dealer when the car was a few months old and they were of no help. I had an accident as a result of this issue. I was very fortunate that the only result was a completely ruined drivers door. I have had a problem of the car freezing in neutral after starting. It will not turn off or shift. After 5-10 minutes it seems to unfreeze and will allow me to turn it off and start over successfully. This has happened about 6-8 times since I got the car. The dealer was unable to address it since I could not duplicate the problem at the dealership. Aug.25 this happened in my garage. I started to get out of the car as I have done on other occasions when this occurred, and just after I stepped out, it shifted into reverse. I was able to jump in the car and hit the break. The car door (opened) crashed into the wall next to the garage causing extensive damage to the door of the car and to an adjacent bike. Other than a few bruises , I was very fortunate not to have been seriously injured or to have injured someone else. If this had happened in a parking lot, it would have posed serious danger to passerby's and other vehicles.

The contact owns a 2020 Kia Sorento. The contact stated that while driving approximately 30 MPH, the contact attempted to use the horn, but the horn failed to operate. The vehicle was taken to the dealer, who replaced the horn. Approximately a week later, while attempting to use the horn, the failure recurred. The dealer was informed of the failure. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was 71,188.

After owning our car for about a year when we started noticing abnormal pitting and chips in our windshield. I inquired to the dealership I bought it from and they said it was normal. Consequently the pits, chips and cracks got worse at an alarming rate. I took pictures from when the worst crack started and from February 2025 to August 2025 the crack has spread to 3/4 of my windshield. The windshield also rattles and whistles where the beginning of the crack is.

There are several spots on the front grill, around lights, bumper and other front end pieces that have bubbling, flaking, peeling chrome and paint. There are at least 20 paint chips all the way to the fenders in the front. This vehicle does not travel on gravel roads.

The contact owns a 2017 Kia Sorento. The contact stated that while driving 25-29 MPH uphill and approaching a stop sign, the vehicle began sputtering and struggling to accelerate. While at the stop sign, the vehicle started idling roughly with the check engine warning light illuminated. The vehicle was towed to the dealer and was diagnosed and determined that the cylinders were filling with oil due to a gasket failure. The contact was informed that the engine needed to be replaced. The failure caused the catalytic converter to be corrupted and needed to be replaced. The dealer informed the contact that there was a Class Action Lawsuit for the issue, and there was an Extended Warranty coverage for the failure; however, because a specific fault code was not retrieved, the vehicle would not qualify for the repair, unless the engine seized. The contact was advised not to add oil to the engine to prevent the engine from seizing and to get the repair covered. The vehicle was not repaired. The manufacturer was informed of the failure and referred the contact to the dealer for assistance. The failure mileage was approximately 95,500.

Open [XXX] SK3 Horn Warranty Extension for Replacement 17/02/2025 ~ 31/12/9999 Open [ZZZ] [Recall] Nu ATK (SK3, SP2, BD) Engine Inspection & Replacement 01/01/2025 ~ 31/12/9999 3 other are at 2 other are at safety risk The problem is confirmed by [XXX] that is a independent service center The vehicle has not been inspected by manufacturers or anyone else. There are currently no warning lamps. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Transmission has extremely hard shifting if vehicle sits for more than 24 hours. After the vehicle is parked, inside garage, or outside, the first drive of the day has an extremely hard shift of the transmission on the first shifting of the day. The shift it so hard, it jerks the entire car and jolts me in my seat. The remainder of the drive and day, the hard shifting does not occur. Took the vehicle into dealership where purchased at 1000 miles and left it with them for 2 full days. Unsurprisingly, they said they were, "Unable to reproduce". The next day, the vehicle had the exact same problem. I have close to 3000 miles on the vehicle and the transmission continues to do the exact same thing every time I drive it. It is terrible for a brand new car. It doesn't matter which "Drive mode" the vehicle is in. The dealership also tried to reset the ECM. But no luck. My neck and back have been sore from the hard shift events too.

I am submitting this complaint regarding a 2016 Kia Cadenza (VIN: [XXX] ) and Kia’s repeated failure to properly diagnose or repair a serious overheating/safety defect despite this being a well-documented and known issue affecting these engines. Vehicle and Service Information •Vehicle: 2016 Kia Cadenza (VIN: [XXX] ) •Mileage: ~129,608 •Dealer Involved: Central Kia of Plano (Plano, TX) •Repair Order #: [XXX] •Dates: [XXX] Issues 1.Overheating / Known Engine Defect •My vehicle overheats, especially with the A/C on or at idle. •Kia has already been directed to issue extended warranties on these engines due to systemic defects (including bearing wear, engine failure, and overheating). •Despite this, Kia continues to deny or delay proper repairs and instead authorized the dealer to replace only a cooling fan relay, which did not fix the defect. 2.Dealer Misconduct •Central Kia of Plano kept my vehicle for 10 days, charged me $269.92, and returned the vehicle still overheating. •I was told a Techline case would be submitted, but I have confirmed this was never done. 3.Incomplete Recall Repairs •I requested completion of open recalls: •SC232 – Windshield Bonding •SC284VG – HECU Fire Risk •The dealer marked one as complete and the other as pending, but I have no confirmation in Kia’s system that either was properly completed. 4.Corporate Inaction •I have multiple open cases with Kia Corporate, but they have failed to escalate or reassign me to a reputable dealer. •Despite the extended warranty obligation, Kia has not replaced the engine or confirmed a permanent repair. Why I Am Contacting NHTSA •This is not an isolated issue — it is a known safety defect across these engines. •Kia has been required to extend warranties for this exact defect but is failing to honor that coverage by stalling, misdiagnosing, and leaving vehicles unsafe. •My vehicle remains unsafe to drive INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Car suddenly stopped working; it was struggling to stay on. Mechanic stated cylinder is not functioning at full force.