2012 Kia Sorento: engine overheating

Filed Apr 3, 2026 · CA

In September 2025, an authorized Kia dealership performed recall SC284XM (HECU electrical short fire risk) on this 2012 Kia Sorento. During the repair, the dealership disconnected the battery, resetting the PCM/ECU and clearing all OBD-II readiness monitors including the oxygen sensor monitor. Despite driving hundreds of miles afterward, the O2 sensor monitor has not reached a Ready state. A malfunctioning or unmonitored oxygen sensor creates a direct safety risk — the PCM cannot properly regulate the fuel-air mixture, increasing the risk of catalytic converter overheating, engine damage, and potential fire. The vehicle cannot pass California's mandatory smog inspection and the registration has lapsed, forcing the owner to operate an unregistered vehicle or go without transportation entirely. The dealership has verbally confirmed this is a known model-year defect — the root cause is a software condition requiring a PCM reflash, not achievable through normal drive cycles. This is the second occurrence; the identical failure happened in 2022 after a prior battery disconnect on this vehicle. The vehicle is now held at the dealership 11+ days with no update, no loaner, and an ~$460 estimate for repairs caused entirely by Kia's own recall service. A vehicle actively subject to a fire-risk recall (SC284) was returned to an owner in a condition where the engine management system cannot be properly monitored — compounding the original safety risk rather than resolving it. All this an yet a no no-cost remedy has been issued. This vehicle has been subject to five the federal safety agency recalls: SC200 (engine fire), SC147 (engine bearing), SC284 (HECU fire), SC172 (fuel pipe fire), and brake-shift interlock defect. Simultaneous complaints filed with Kia Consumer Affairs and CA Bureau of Automotive Repair (Ref: XXX). INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Dec 6, 2023 · Engine · TN

On Wed, Nov 1, 2023, 1:08 PM [XXX] [XXX] > wrote: December's 2nd, 2020 Kia Recall number SC200XM the federal safety agency Recall # 20V750 Recall Status Incomplete The summary reads that Kia is conducting a safety recall campaign to inspect the engine compartment for fuel, engine oil leaks and or and engine test and make any repairs including engine replacement on all 2012 - 2013 Kia Sorentos. This recall basically described my vehicle that I owned and many of the related problems like fuel mix related issues. My vehicle was giving off codes related to the fuel emissions problems, like gas cap, intake manifold, sensor, could be related to a possible engine fire or oil leaks that could cause a fire, ( reasons for a recall) On (10-12-2023) I took my vehicle in for this safety recall because Kia had issued this above safety recall for my vehicle. Prior to my going in, I had experience my vehicle cutting off while driving, some overheating, and oil leaking also, before I replaced the valve cover gasket on 5-18-2023. The mechanic that worked with see uploads, stated that spark plugs were wet with oil because I needed a valve cover gasket replacement. His statement would have indicated that my vehicle was leaking oil because of a bad valve cover gasket and it would cost me over $400.00 to fix. My vehicle was not leaking oil, because I had already replaced the valve cover gasket. There were no oil leaks on the ground even in my driveway. The mechanic was not aware that I had already replaced the valve cover gasket on (5-18-2023), prior to the recall visit to Kia on Mt. Moriah, in Memphis,TN. I believe that Kia, the mechanic, intentionally fabricated a problem with my vehicle to keep from servicing my vehicle for free on any and all related recall problems. I am requesting that Kia replace my engine because the recall says it will replace or fix because it is a fire safety issue. Thanks. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed May 12, 2022 · Engine, Fuel system · NC

We had some kind of fuel leak that caused smoke to come from the hood and the car to overheat. The check engine light did come on. We were on our way to the mechanic and the car died on us in the middle of the road. The car was taken to two different mechanics 3 different times. We had the thermostat housing replaced, the intake manifold, and the head gasket. Submitted documents to Kia showing our problem. They said they needed more proof showing there was some type of leak. I found the original papers today from the first mechanic that states "fluid leaking, smoke from under the hood, car shut down". I asked if I could submit those documents since they say exactly what Kia was looking for. I was told that those documents wouldn't make a difference in the outcome and they would not be reimbursing me anything on this matter. I have paid almost $3000 to have my car fixed and Kia will not reimburse for anything even tho I have the proof they told me that they needed. Kia has not been helpful at all through this matter. They have no intention of reimbursing me even tho my recall letter states they will if I have proof showing there was a leak and smoke coming from the engine. I received the recall letter 4-6 months after I had made the repairs.

Filed Aug 20, 2021 · Lights · MD

Passenger side headlight went out while driving. Went to replace bulb and found connector melted. Quick internet search shows this is not uncommon and even a YouTube tutorial on how to replace the pigtail. Question remains what caused the overheating in the first place? While it's a major inconvenience at this point as we can't drive the vehicle without fear of getting a ticket or repair order until fixed, worst case scenario this happens to both at night?

Filed Apr 5, 2021 · Body, Lights · OH

My driver headlight wiring harness keeps overheating and melts the harness casing. I have fixed this issue numerous time. My driver passenger door handle came off in my hand.

Filed Feb 9, 2021 · Engine, Fuel system · 124,515 miles · TX

I had a burning oil smell coming into the cab of the car and smoke pouring out of the engine. I was driving home and noticed it when I got home from work. We took it to the kia dealership the next day and it smelled bad, but didn't overheat. I took it in and it had multiple oil and fuel leaks. They replaced the valve cover gasket and fuel line and resealed the front cover and lower oil pan. This is very similar to another recall (recall #20v750000) they have on a different 2.4l engine. I called the customer relations at kia and they said that no issues had been related, but I've had many other recalls on my engine already and have a warranty on it.

Filed Nov 30, 2020 · Electrical, Lights · 56,500 miles · OR

Intermittent connection to passengers side headlamp bulb, causing overheated connector and wiring.

Filed Sep 16, 2019 · Engine · 30,000 miles · NJ

My engine was replace on original recall. I keep bringing it back for overheating and running hot and they keep telling me nothing is wrong. Is there a defect in the replacement engine afraid to drive my car car it does not get hot until you drive it for a while or long trip

Filed Aug 2, 2019 · Engine · 69,900 miles · MN · fire

July 2016, while hwy driving my 2012 kia sorento (v6) (@69,000 mileage) the car abruptly stopped & smoldered (police called fire dept). Car was inoperable, towed to shop & then to kia dealership who advised that radiator cap melted & they found "metal in coolant & the engine" (as noted on the kia dealerhship documentation). He said he never saw such a thing. Dealer said engine needed replacement because of the metal found in engine & metal likely caused overheating which melted rad cap. Kia dealer installed new radiator & a used engine (w/43k mileage), costing me $14,000. The car has continued to make a knocking noise and recently 7/2019, @122k miles again smoldered & lost power. Radiator cap again "melted" requiring a 3rd radiator replacement. Gauges/dash showed no indication of car overheating. I fear problem is recurring with 2nd engine (same defect). Learned of 2012 sorento recalls for exact issues (metal in engine, overheating/fire, knocking & power loss). Kia dealer (8/2019) informed me only 4 cyl units were recalled for metal in engine & my 6 cyl unit with the same engine-metal issues was not covered by kia recall. I asked if anything related to car use or maintenance would have caused metal to contaminate an engine; dealer said no, problem is unrelated to car use or maintenance and a mfg problem was the only way the metal would show up it. But because there was no recall on the 6 cyl models repair costs were mine. They refused to contact kia. My vehicle has the exact same problem as the 4 cyl models & it's a unique defect known on numerous kia models. Kia dealer acknowledged my impeccable pm & service reord. They admit this problem would not be due to vehicle care or use, & know the problems w/ my 6 cyl are identical to 4cyls. I believe kia may be underreporting the problem & failed due diligence to identify same defects in 6 cyl models.