What 788 owners told NHTSA about the 2017 Kia Sorento Plug-in Hybrid

On February 16, 2023, the engine in our 2017 Kia Sorento SXL developed a sudden, loud knocking noise while driving. No dashboard warning lights illuminated at any time, including no oil pressure warning, check engine light, or other engine-related alerts. The vehicle remained fully operable and did not lose power or seize. I continued driving approximately 20 minutes home, including highway speeds up to ~75 mph. The following day, with the knocking noise worsening but still no warning indicators present, I drove approximately 25 minutes to an independent repair facility. The vehicle was then diagnosed with catastrophic engine failure attributed to oil starvation and was towed. Because the vehicle had fewer than 100,000 miles and was within the expected powertrain warranty period, we pursued a warranty review through Kia. Kia requested maintenance records, which we provided in full after gathering documentation from all service providers over a two-week period. Despite this, the warranty claim was denied, first citing gaps in initial records and later questioning oil type based on older receipts that did not explicitly state “synthetic oil.” At Kia’s recommendation, we authorized an oil pan inspection at our expense. Kia concluded that the oil filter appeared to be more than two years old, which conflicted with our documented maintenance history showing multiple oil changes during that period. Kia denied warranty coverage and quoted approximately $10,500 for engine replacement. We were advised that the replacement engine would be a remanufactured unit and that it was on backorder with no estimated delivery timeline. After approximately ten weeks without resolution, we located a compatible replacement engine at another Kia dealership and arranged transport of the vehicle there. The engine was replaced within three days for approximately $9,000. The repair included installation of a replacement engine, new spark plugs, and a passed state inspection.

NHTSA ODI 11748438

On XXX, the oil warning light was illuminated in our 2017 Kia Sorento SXL and that the vehicle was leaking oil. We brought the vehicle to an independent repair facility (Tire Kingdom, Cairo, NY) for diagnosis on XXX. The repair facility provided an oral assessment with photographs indicating a suspected rear main seal leak. The engine was dry on the top but excessively wet between the engine and transmission, consistent with a significant oil leak in that area. We were advised that the vehicle could be driven in short intervals of approximately 25 minutes, provided that oil levels were closely monitored and topped off as needed. On XXX, we began driving the vehicle to transport our daughter to a train station 25 minutes away. Halfway through the trip, the vehicle began producing a metallic noise from the engine compartment. We immediately pulled over safely and turned off the engine. After stopping, we discussed next steps and then attempted to restart the vehicle. The engine started but immediately produced a severe mechanical rattling noise. It was shut off within approximately one second of startup. The vehicle was not driven further. The vehicle was then towed to Romeo Kia in [XXX]. Kia performed a diagnostic assessment and determined that the engine required complete replacement, with an estimated repair cost of approximately $10,000. This vehicle previously had a remanufactured engine installed in 2023 following a prior catastrophic engine failure. Between installations, the vehicle was maintained in normal service and was not overdue for scheduled oil changes at the time of this incident (27 days to go). At no point prior to the failure event was there clear indication of immediate catastrophic engine failure beyond the initial oil warning and leak condition. The failure progressed from a diagnosed external oil leak to immediate mechanical failure upon restart, requiring towing and full engine replacement. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11748442

bought car from carmax. engine knock sensor went bad and engine is knocking. kia states engine is not origional and was taken from a junk yard, both kia and carmax are refusing to fix eventhough I am doing payments and it is a known kia issue for this car. Kia charged me 350$ to run test and cleared the light but informed me my engine is going to blow. carmax is refusing to do anything but still wants us to pay the 9k we owe on the car eventhough its broke.

NHTSA ODI 11746572

While driving on the highway on Mother’s Day weekend with my wife and daughter, the vehicle suddenly lost acceleration and engine power while traveling on a 5-lane beltway. The vehicle would not accelerate and I was unable to maintain normal highway speed. I had to coast to the side of the road with the hazard lights activated because of the safety risk. The vehicle was eventually restarted after being towed to a dealership, but it continued to have severe loss of power and could not safely travel above approximately 45 mph. The suspected failure involves the engine and emissions system. The vehicle has a history of engine-related issues and previously received engine-related repairs. The current engine has developed excessive oil consumption. This condition has resulted in fouled spark plugs and a catalytic converter becoming severely restricted/clogged from oil contamination, causing significant loss of engine performance. A dealership inspected the vehicle and documented the oil-burning complaint and catalytic converter-related fault. The dealership performed diagnostic work, including spark plug replacement, but the problem continued. An independent repair facility also inspected the vehicle and confirmed excessive oil consumption and catalytic converter restriction. The vehicle remains available for inspection. This condition presents a safety concern because the vehicle experienced a sudden loss of power while traveling at highway speeds and was unable to maintain normal traffic speed.

NHTSA ODI 11743629

Vehicle has a recurring P0018 fault code (Crankshaft Position - Camshaft Position Correlation Bank 2 Sensor A). Dealer diagnosed loose cam pins on Bank 2 requiring major engine repair. This fault creates a safety risk as improper camshaft timing can cause unexpected engine stalling while driving, resulting in sudden loss of power, power steering, and brake assist. The manufacturer has denied warranty coverage despite the vehicle being within the 10-year/100,000-mile powertrain warranty. This appears to be a known widespread issue on the 3.3L V6 engine. Vehicle has 96,000 miles and is still within warranty coverage period.

NHTSA ODI 11741308

While I was driving my 2017 Kia Sorento, the R.P.M suddenly maxed out and then it rapidly went down to zero. My car lost power completely and stopped. There was a burning smell. Now it is dead. There is no clicking sound. Repair place tells me I need a new engine now.

NHTSA ODI 11739955

The vehicle's electronic variable valve timing actuator (E-CVVT motor) failed, triggering a severe "Limp Home" engine mode. This defect causes dangerous vehicle surging/jumping during acceleration, limits engine output to 1500 RPM while idling, generates abnormal engine noise, and prevents the vehicle from exceeding 60 mph. This makes merging onto fast-moving highways or maintaining the flow of traffic highly hazardous. The component defect was formally diagnosed at an authorized dealership (Herson’s Kia) on March 30, 2026. The manufacturer, Kia America, was formally notified of this powertrain hazard but has delayed providing a remedy under the PI1802/KSDS warranty extension for over 49 days by demanding unrelated fluid maintenance histories for this non-lubricated electronic component. Because of the manufacturer's procedural obstacles, I am forced to operate an inherently unsafe powertrain configuration for essential transportation.

NHTSA ODI 11738838

The car is consuming oil under the 3,000 mile mark.

NHTSA ODI 11738108

The car started sticking when driving then a knocking in the engine. Upon investigation/ diagnostics we found that the engine is blown and needs replacing. I have owned this car for 3 years to date and have keep up on all maintenance which you can find on carfax there is no reason at 136,000 an engine should blow. I would like this fixed asap

NHTSA ODI 11736662

Incident Details: While traveling on MD-152 (Mountain Road) in Fallston, MD, the vehicle suffered a sudden and complete loss of motive power without any prior warning or dashboard indicators. There were no warning lights, no temperature spikes, and no mechanical noises before the engine seized. This sudden failure occurred in active traffic on a busy road, creating an immediate risk of a rear-end collision. Reason for Denial & Safety Risk: The vehicle is currently at a certified Kia dealership. I am being denied a remedy for this catastrophic engine failure due to "insufficient maintenance records." However, the Kia service department has confirmed in writing that "sludge is not a factor" in this case. Mechanically, the absence of sludge proves the engine was not neglected. Manufacturer Failure: After being denied and exploring other avenues, I have learned that the 2017 Sorento 3.3L V6 is covered under Kia Warranty Extension WTY035 (15 years/180,000 miles) for catastrophic engine failure related to head bolt and gasket defects. By using a lack of paperwork to deny a claim for a "sludge-free" engine, Kia is bypassing its safety obligations for a documented manufacturing flaw. I am reporting this as a dangerous "loss of motive power" defect that mirrors existing Kia engine safety recalls across their product line, and warrants federal oversight.

NHTSA ODI 11734964

Timeline of Maintenance & Failure: • October [Year]: I purc Timeline of Maintenance & Failure: • October [Year]: I purchased this vehicle. • February 11, 2026: I performed a full oil service (documented receipt attached). • April 3, 2026: While transporting my two grandsons—one of whom has autism—the vehicle suffered total engine failure while in traffic. • The Safety Defect: Despite the engine running out of oil, the vehicle provided zero warning lights or signals. No "Low Oil Pressure" light or "Check Engine" light ever appeared. This "silent failure" left me stranded in a high-risk traffic situation with a child who has special needs, as I had no warning to pull over safely. • April 8, 2026: The Kia dealership confirmed the engine is seized. Improper Handling of the Claim: The dealership is currently refusing to honor Warranty Extension WTY026 (15-year/150,000-mile Oil Pressure Switch). Their refusal is based on an outdated service sticker in the window that is over 9,000 miles old, while they are ignoring my verified paper receipt from February 11, which proves the vehicle was serviced less than two months ago. The dealership is requesting a full breakdown (teardown) of the engine at my expense to determine the cause. It is my position that requiring a consumer to pay for a mechanical breakdown is an unreasonable barrier to a warranty claim—especially when they have not yet performed non-invasive diagnostic tests, such as a videoscope/borescope inspection, to check for the known oil pressure switch leak covered under WTY026. Significant Safety Concern: The failure of the Oil Pressure Switch (WTY026) to trigger a dashboard warning is a critical safety defect. This failure led directly to a seized engine while I was transporting children. I am requesting that the Department of Transportation investigate this safety-system failure and that Kia Corporate override the dealership’s request for a consumer-funded teardown, given that I have provided proof of maintenanc

NHTSA ODI 11730551

I am submitting a safety complaint regarding a **2017 Kia Sorento SXL** equipped with a **3.3L Lambda V6 engine**, which experienced **sudden and catastrophic engine failure** at approximately **137,000 miles**. Prior to failure, the vehicle exhibited **progressively worsening engine knocking and vibration**, indicating internal engine damage. Despite these warning signs, the failure occurred **abruptly while driving at highway speed**, resulting in a **sudden loss of power**. This incident created an **immediate safety hazard**, as I was traveling in active traffic and was forced to quickly maneuver to avoid surrounding vehicles. The unexpected loss of propulsion significantly increased the risk of a collision. The nature of the failure appears to be consistent with **internal engine component failure (such as connecting rod bearing failure)**, which is not typical for a properly maintained modern engine at this mileage. Importantly, my vehicle was manufactured in **November 2016**, placing it within an early production period for this engine. There is evidence from technical service information and consumer reports suggesting a **pattern of premature internal engine failures** in this engine family, particularly involving **rod bearing wear leading to catastrophic failure**. This raises concern that the issue may represent a **systemic defect** rather than normal wear and tear. I am concerned that other vehicles with this engine may experience similar failures **without sufficient warning**, potentially resulting in dangerous driving situations, especially at highway speeds. I am requesting that NHTSA: • Review this incident as a **potential safety-related defect** • Evaluate whether similar complaints exist involving the **3.3L Kia Lambda V6 engine** • Determine if an **investigation or recall** is warranted I am able to provide supporting documentation, including maintenance records, diagnostic findings, and repair estimates upon request.

NHTSA ODI 11728003

The contact owns a 2017 Kia Sorento. The contact stated that while driving at 35 MPH, there was an abnormal knocking sound coming from the engine, and the vehicle lost automotive power. The oil pressure warning light was illuminated. The vehicle was taken to the dealer, where it was diagnosed with excessive oil consumption. An oil consumption test and combustion cleaning were performed; however, the failure persisted. The vehicle was taken to an independent mechanic, who confirmed the failure. The contact was advised to park the vehicle outside. The manufacturer was not notified of the failure. The failure mileage was 19,000.

NHTSA ODI 11727326

My 2017 Kia Sorento with approximately 175,000 miles experienced engine failure involving the engine and engine cooling system. The vehicle began showing symptoms including engine shudder, reduced acceleration, and a check engine light. These symptoms worsened and were diagnosed by a Kia dealership as internal engine damage, specifically a failure in cylinder 4. The dealership advised that the engine would require full replacement at an estimated cost of approximately $9,600. The failure creates a potential safety concern because the vehicle experiences loss of power during acceleration, which could increase the risk of an accident, especially when merging into traffic or driving at highway speeds. The issue was confirmed by an authorized Kia dealership, Community Kia, after performing diagnostic testing. The dealership completed multiple recall and service campaigns but determined that the engine was not eligible for replacement because a required diagnostic code associated with the knock sensor detection system did not appear. To my knowledge, there is no clear documentation confirming that the knock sensor detection system update was installed on the vehicle prior to the engine failure. If this system was not installed, the diagnostic code required to qualify for engine replacement may not have had the opportunity to trigger. Prior to the failure, the vehicle displayed warning symptoms including a check engine light, engine vibration, and loss of power. These symptoms appeared before the dealership inspection and diagnosis. This complaint is being submitted due to concern that the engine failure occurred despite known issues associated with this engine type, and that the failure creates a potential safety risk due to sudden loss of power while driving.

NHTSA ODI 11725835

Engine caught on fire while driving down the hhighway in SC. Vehicle was towed to Fred Anderson KIA of Greer & has since been sold by them after sitting in their lot for almost 3 years. I was driving down the highway not knowing my car was on fire. I only pulled off at the exit because my son, who was in the car behind me, had called to tell me he needed to use the facilities at the next exit. I pulled up to a gas pump to top off my gas tank while we were there. It was not until then that I had smoke coming out from under the hood of my car. I opened the hood and the engine compartment was completely engulfed in flames. The fire department did come onsite to extinguish the fire but a bystander had already used an extinguisher and put it out. Insurance refused to pay due to the many issues with KIA vehicles and had reduced my insurance to only liability. There were no prior warnings of any issues with the car. We had been driving all night from Ohio to SC for a family wedding and we were still 3 hours away from our destination.

NHTSA ODI 11722746

Driving up a small hill when you hear this knocking noise.The car got to the top of the hill and shuts off no engine no turn over spent 198 to get it towed then comes to find out that it is because the car had no oil from what the mechanic told me. The car had oil but apparently only this model has issues with not having oil and you have to do an oil change every 4 months rather than 10,000 miles and I just brought the car.

NHTSA ODI 11722075

I was driving everithing was normal but suddenly the light of the Engine was on and the car lost power and the engine shut off everything happened in like one second, dont let me time or opportunity to think something safe, it was a lot of traffict on the street and the car behind almost crash on me. it was like a nigthmare.

NHTSA ODI 11719501

oil light in past week would come on for short time then go out, i brought to kia cape coral, fl. see video attached from kia. oil went up no oil on ground. then the oil went past switch for oil light up to next hose that had wires for injectors. $5,000.00 for this wire alone and 7 hours labor. Total quote $6,700.00. the 2017 sorento with a 3.3l engine has an extended warranty to 150,000 miles. my 2017 sorento not covered as it is a smaller engine. danger of engine failure known oil switch problem.

NHTSA ODI 11717526

Going down the interstate on 2/7/26, 56 miles from home and my Kia lost power, no lights or warning, loud bang from the engine, smoke rolling out of the back and engine is completely dead. 149,000 miles. Called several tow truck companies, and each asked make and year of vehicle, and immediately after, "Did your engine go? Kia has that problem." Me and my sister were left stranded on the side of the interstate in the extreme cold. Luckily, 2 gentleman stopped to see if we were okay because they had seen fire under the vehicle. Purchased the extended lifetime warranty and Kia will not honor it. No I have no vehicle and a car payment.

NHTSA ODI 11716788

To Whom It May Concern, I am the owner of a 2017 Kia Sorento and have recently experienced excessive oil consumption with the vehicle. The engine is losing approximately 4 quarts of oil per 1000 miles, with no visible external leaks or exhaust smoke. I am aware that many Kia vehicles equipped with the 2.4L GDI engine have been affected by issues related to piston ring defects, which can cause abnormal oil consumption and, in some cases, premature engine failure. I also understand that Kia has issued recalls, service campaigns, and extended warranties on similar models and engines. I am requesting the following: 1.) Confirmation of whether my vehicle is included in any recalls, service campaigns, or warranty extensions related to this issue. 2.) A dealer inspection and oil consumption test to formally document the problem. 3.) Information on any coverage, goodwill repairs, or warranty extensions available if my vehicle is determined to have this defect. I respectfully request your assistance to resolve this issue promptly. Please provide me with any relevant documentation or service campaign numbers in writing for my records. Thank you for your attention to this matter. I look forward to your timely response. Sincerely, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11716474

This uses oil. It takes 16 ounces or more every 400 miles.

NHTSA ODI 11714875

Daughter was driving home from getting her kids from daycare and said she couldn’t see behind her from smoke and her boyfriend told her the car was on fire and she said the engine light came on and then all the lights came on and it started smoking more and a lady pulled over and told them get out because the car was on fire and 911 was called and she got out and got kids in the lady’s car and called me at work and I left and got there and the fire department was hosing down the car for about 45 minutes. They finally got the fire out which was contained under the car engine and Insurnace checked it out and gave me the estimate that was uploaded and told me that it was a mechanical failure from the engine so they won’t cover anything and I have to put a new engine in it because it has a big hole in it underneath. I am not even sure if they really looked at it because they told me they will give it back to me and I can’t afford to have it looked at. I had a warranty but was told it would be totaled out because a fire is a total loss and the warranty said even though I had coverage the day it caught on fire they won’t cover because they said the claim had to be placed before it got canceled which makes no sense to me but them and insurance said because there are recalls on engines for other same models of my car that Kia should have to make a recall for it since the engine is what caused the fire. I still have a payment on the car and waiting for them to get it back to my house and not sure when that will happen because it snowed and they keeps saying they can’t tow it back to my house. But I feel if other 3.3l engines within 2017 Kia Sorento then there needs to be a recall. I don’t see how there are absolutely no recalls on a car. I have yet to find a car that does not have a recall especially Kia’s and I have 2 of them and my other one has several recalls on it. Then magically this specific one that’s catches fire has no recall on it.

NHTSA ODI 11714388

Driving home from work car started making a slapping noise, no engine light on. I stopped and the motor shut off and spit out oil. Found out that a connecting rod had broke off and went through the oil pan. now the car needs a new engine with only 166,000 miles on a 2017 Kia Sorento. The car has had all maintenance done on it.

NHTSA ODI 11713123

I am reaching out regarding a challenging situation with my vehicle. On October 24, 2025, my engine seized up while I was driving. After conducting research on my vehicle, I discovered that there was a recall related to a component of the engine which was issued in 2018. I purchased my vehicle from Carbone Honda in June 2021 and was not aware of this recall until recently. Unfortunately, this incident occurred during a particularly difficult time for me, as my mother was diagnosed with brain cancer (stage 4 glioblastoma) in the same week. In addition, I am currently a nursing student facing significant financial constraints. I waited two months for an appointment at Destination Kia to determine whether my vehicle would still be eligible for an engine replacement. During this period, a mechanic kindly allowed me to store my vehicle at his facility. My appointment took place on December 22nd, and the following day I was informed that I did not qualify for repairs because the recall that was sent out prior to purchase of my vehicle was not addressed prior to the engine failure. I understand the requirements for recall-related repairs; however, my engine failure appears to be linked to a known defect. I would appreciate any guidance or assistance regarding possible solutions or eligibility for support in this matter. Vin # [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11709058

1. The Snow White Paint is lifting and peeling in all areas of the vehicle. 2. The engine, despite proper care and maintenance, is seizing occasionally upon starting the vehicle. 3. Auto Braking System and Lane Departure turns off at random

NHTSA ODI 11708907