KIA Complaints

The engine catastrophically failed on an 45 mph road. There was no warning leading up to this incident at any time previously. The engine lost all power and the car shut off on this road. My husband was able to pull it over and tow it into a mechanic. The mechanic said the oil was disappearing somewhere without any residue, and without triggering any warning light of any kind. In essence the oil is not low enough to trigger the light but it is also escaping somewhere. The mechanic said it seemed like the engine had a fault in it. Because of the open recall on the piston rings, we had it towed to the dealership who then claimed this problem has nothing to do with the faulty piston rings. Instead they said there is a rod knock. The car is currently at Doug Smith Kia in Lindon, Utah and can be inspected there.

2018 Kia Sorento, under 88,000 miles, with Theta II engine defect. KSDS update installed. Oil consumption issues requiring adding at least one liter of oil every 1,000 miles in between regular oil changes/ maintenance. Oil warning lamp does not illuminate at all or only blinks on for a second then stays off, even when oil is less than 1 liter. Noticed slight jerking/hesitation at acceleration for a few days, then experienced shaking and heard vibrations when breaking and idling. Within a few minutes, MIL appeared with audible warning, "Take this vehicle to a Kia dealership." Immediately parked car. Towed to Kia dealership. No record of DTC P1326 found, which would have qualified vehicle for new engine under PI1802 Y/Z Theta II Extended Warranty. Diagnostic found misfiring cylinder and fouled spark plug. Technician in the video stated "oil consumption." Due to absence of P1326 code, service manager suggests we replace fouled plug and return with the vehicle when the same issue happens again. This does not follow Kia's own guidelines in PI1802 Y/Z campaign for a couple of reasons. First, activation of the MIL in conjunction with the audio warning indicates the Knock Sensor P1326 code should have been generated and stored, but the warning system must have malfunctioned. Service dept. did not to inspect the knock sensor harness for damage or oil saturation which could have kept the code from registering. Second, Service dept. did not consider shaking and vibration as "engine noise," which would have required them to perform a BCT or test for connecting rod bearing noise, providing a pathway to request Techline PWA approve replacing the engine under warranty. Kia's Product Improvement Campaign for Theta II engines ought to prevent injury or death resulting from catastrophic engine failure. My vehicle presents clear evidence of engine failure progression at different stages. Rather than navigate the warranty via a Techline, Kia has advised me to continue driving.

The contact owns a 2021 Kia Telluride. The contact stated while the vehicle was parked, the infotainment center displayed a blank screen. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The dealer was made aware of the failure. In addition, the contact was informed that the repair was not covered under recall or warranty. The manufacturer was not made aware of the failure. The failure mileage was approximately 66,000.

I reported the issue yesterday, but we have additional information. Here is a timeline of the incident as recorded by the doorbell camera: 2026-05-03 085400 Car parked 101423 Car is already trying to start by itself 101713 Car still starting, starter slowing down 101734 Starter sounds overheated 101740 Starter slows to stop 101835 First visible smoke 102304 Neighbor notices 102338 I was notified 102452 Used extinguisher 102600 Fire out 102744 Called the fire department 103600 Fire department arrives shortly after I have camera videos showing much of the timeline. I cannot upload because they exceed the limits of this form. Well over an hour after the car was driven, the starter engaged. It ran for almost 4 minutes straight as far as I can tell. In the videos we have, you can hear it seize up from the heat. About a minute later, smoke is visible. Had this not been caught in thte timely manner that it was, it would have been devastating. Here is a link to two of the videos. [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The issue is the front grill design. Kia left the radiator completely exposed behind the grill with no protective barrier. Over time, dust, debris, and rocks collect and pass right through, causing serious damage to the radiator. Based on my experience and the experiences of hundreds of other owners, you will likely need to replace your entire radiator within the first three years of ownership. It is not covered under warranty. You will be expected to pay out of pocket in my case, $1,350, for damage caused by their faulty design. The "solution" owners are left with? Going on Amazon and purchasing a metal mesh grill guard to install yourself, just to protect a part that should have been protected from the factory. A consumer should not have to modify a brand-new vehicle to prevent a critical component from being destroyed under normal driving conditions. If the grill had been designed properly in the first place, none of this would be necessary.

I was driving down the highway at approximately 70 mph, and a deer ran into the front driver's side corner of the car. The airbag fortunately didn’t deploy, but the hood flew up and covered the windshield, blocking my ability to see. I was somehow able to pull the vehicle over without being able to see. Within 30 seconds of pulling over—and while I was still in the driver's seat—I noticed flames coming out of the engine compartment. I screamed to my son to get out of the car, and within minutes the car was completely engulfed in flames. The car burned to the ground and is a total loss. I have no idea how this could have possibly happened. This shouldn't have happened from a deer. The vehicle was only 7 months old, was up to date on all required maintenance and recalls, and had approximately 11,000 miles on it. It was in perfect condition. We were able to escape, but for a moment I thought we might not be able to. We're lucky to be alive. I reported the issue to my insurance company and the manufacturer and have received no information on causation. A link to the video of the car burning is below: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Standard vehicle component- shattered window. I was driving on highway I 275 and heard a loud sound, when I investigated I realized that the window in the second row to the right simply just shattered, glass flying everywhere.

Transmition- I started bringing it into the dealer around 80,000 miles because it was slipping and bucking (gears). Allegedly, they could provide warrenty coverage but could duplicate the problem. It is doing it more frequently and hesitates (drastically) which can cause an accident from behind. Yes, it was reproduced but as I stated, I was told, "They couldn't do 'anything about it'". It has been inspected multiple times at Kia prior to 100K warrenty At one point, my check engine light kept coming on, then it just went off. There seems to be some major faulty component with this make, model and year. I have read many very similiar complaints, online and there seems to be chronilogical issues/problems that arise at certain miles. Everything I have read, it the exact same situation I have been having which is just geting worse by the day. However, I was blatently informed by Kia, "They would not replace the transmition unless it went." I think that is totally ridiculous, you wait until it goes and can cause an accident before you will fix/replace the part. I also read and heard from multiple mechanics that it could be the "failed torque converter" which was never mentioned from the dealer. I have also had issues with the CV axle and oil plastic housing.

I was driving to work and there was a sound like an explosion or a gun shot and then my sun roof was shattered.

I had an ICCU failure on 4/12/26. I was fortunate enough to be close to home, so I was able to get back home before the vehicle dropped into reduced power mode. As has been reported many other places, I heard a loud pop and moments later a number or warning messages came up on the display. It was towed to the dealer the following day and has been confirmed to be an ICCU failure.