NHTSA owner reports · September 18, 2026 snapshot.
Engine complaints
360 reportsClear category filter74,990 miles · Sep 26, 2019
Engine
2015 SORENTO ENGINE DIED ON ME TWICE IN ONE DAY, ONCE WHILE DRIVING DOWN THE HIGHWAY AFTER APPLYING THE BRAKES AFTER THE PERSON IN FRONT OF ME WAS BREAKING AND THE OTHER TIME AFTER I TURNED ONTO MY STREET. I HAD TO PULL OVER BOTH TIMES AND RESTART THE CAR. IT'S NEVER DONE THIS UNTIL TODAY 9-26-19. I COULD HAVE BEEN KILLED DUE TO…
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2015 SORENTO ENGINE DIED ON ME TWICE IN ONE DAY, ONCE WHILE DRIVING DOWN THE HIGHWAY AFTER APPLYING THE BRAKES AFTER THE PERSON IN FRONT OF ME WAS BREAKING AND THE OTHER TIME AFTER I TURNED ONTO MY STREET. I HAD TO PULL OVER BOTH TIMES AND RESTART THE CAR. IT'S NEVER DONE THIS UNTIL TODAY 9-26-19. I COULD HAVE BEEN KILLED DUE TO THE ENGINE DYING ON ME WHILE DRIVING. APPARENTLY THIS HAS HAPPENED TO MANY PEOPLE WITH THIS VEHICLE AND A RECALL NEEDS TO BE DONE.
NHTSA ODI #11258457
44,000 miles · Sep 26, 2019
EnginePower Train
2015 KIA SORENTO WITH 44,000 MILES. ON THE FREEWAY AND THE MOTOR LOCKED UP. TOAST. KIA COVERING BUT HAS LESSER VALUE AND THEY KNEW THIS MOTOR WAS DEFECTIVE
NHTSA ODI #11258395
51,817 miles · Aug 31, 2019
Engine
I WAS ACCELERATING ON TO A ON RAMP TO INTERSTATE 405 WHEN HE ENGINE LIGHT STARTED TO BLINK AND CAR LOSING POWER AT THE SAME TIME. THE CAR ALSO PROCEEDED TO MAKE AN ENGINE KNOCKING NOISE AND I EXITED THE HIGHWAY TO GET OFF AND GOT IT TOWED . THE CAR HAS 51, 800 MILES AND I AM ORIGINAL OWE WE AND HAVE HAD REGULAR OIL CHANGES AND M…
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I WAS ACCELERATING ON TO A ON RAMP TO INTERSTATE 405 WHEN HE ENGINE LIGHT STARTED TO BLINK AND CAR LOSING POWER AT THE SAME TIME. THE CAR ALSO PROCEEDED TO MAKE AN ENGINE KNOCKING NOISE AND I EXITED THE HIGHWAY TO GET OFF AND GOT IT TOWED . THE CAR HAS 51, 800 MILES AND I AM ORIGINAL OWE WE AND HAVE HAD REGULAR OIL CHANGES AND MAINTENANCE .
NHTSA ODI #11252584
10 miles · Aug 24, 2019
EngineUnknown Or OtherVehicle Speed Control
CAR STARTED MAKING KNOCKING NOISES FROM ENGINE AND GOT LOUDER AS MY HUSBAND ACCELERATED. CAR THEN HESITATED TO ACCELERATED AND EVENTUALLY STALLED. THIS IS DANGEROUS!
NHTSA ODI #11246220
74,000 miles · Aug 19, 2019
Engine
I WAS TRAVELING AT APPROXIMATELY 50 MPH, I ACCELERATED TO PASS A CAR IN FRONT OF ME AND WHEN I CAME AROUND THE CAR, ABOUT 60 MPH, THE ENGINE STALLED AND ALL OF THE WARNING LIGHTS ON THE DASH CAME ON. THE ENGINE LOST ALL POWER, EVEN THOUGH THE AIR AND ALL OTHER FUNCTIONS ON THE CAR CONTINUED TO FUNCTION. I PULLED TO THE SIDE OF A…
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I WAS TRAVELING AT APPROXIMATELY 50 MPH, I ACCELERATED TO PASS A CAR IN FRONT OF ME AND WHEN I CAME AROUND THE CAR, ABOUT 60 MPH, THE ENGINE STALLED AND ALL OF THE WARNING LIGHTS ON THE DASH CAME ON. THE ENGINE LOST ALL POWER, EVEN THOUGH THE AIR AND ALL OTHER FUNCTIONS ON THE CAR CONTINUED TO FUNCTION. I PULLED TO THE SIDE OF A VERY BUSY HIGHWAY WHEN THIS HAPPENED, TURNED THE KEY TO THE OFF POSITION AND TRIED TO RESTART IT, NOTHING HAPPENED. LUCKILY SOMEONE I KNEW WAS DRIVING BY AND STOPPED TO HELP ME. THE FIRST THING HE DID WAS CHECK THE OIL AND IT WAS FULL, IT WASN'T DUE FOR AN OIL CHANGE FOR ANOTHER 200 MILES. THERE WAS NO INDICATION OF ANY TYPE OF PROBLEM WITH MY CAR PREVIOUS TO THIS. REGULAR MAINTENANCE WAS DONE AND IT IS AT 74,000 MILES. I HAD THE CAR TOWED TO A REPAIR SHOP NEAR MY HOME AND AS I FEARED, THE MOTOR WAS SEIZED. I CANNOT BELIEVE THAT THIS IS HAPPENING, I BOUGHT THE CAR USED WITH LESS THAN 70,000 MILES ON IT LESS THAN 6 MONTHS AGO. THE MAIN REASON I PURCHASED IT WAS BECAUSE KIA IS KNOWN AS A RELIABLE CAR WITH AN AMAZING WARRANTY. I FOUND OUT WHILE SIGNING THE PAPERS THAT THE WARRANTY IS NOT PASSED ON THE ANOTHER OWNER AND THAT IT WAS ONLY VALID TO 60,000 MILES, WHICH THE CAR WAS ALREADY PAST. I DECIDED TO PURCHASE ANYWAY BECAUSE EVERYONE I KNOW THAT OWNS A KIA HAS NEVER HAD TROUBLE WITH THEIR VEHICLE. THE PRICE OF A NEW MOTOR IS GOING TO BE $5500. I AM DEVASTATED AND TRUSTED THAT KIA WOULD NOT SELL A VEHICLE KNOWING THAT THERE ARE SUCH CATASTROPHIC ENGINE PROBLEMS. ALTHOUGH THE SITUATION IS BAD, IT COULD HAVE BEEN MUCH WORSE IF THERE WOULD HAVE BEEN NO WHERE TO BRING THE VEHICLE TO A REST ON THE SIDE OF THE ROAD.
NHTSA ODI #11245011
70,000 miles · Aug 13, 2019
Engine
VEHICLE CONTINUALLY FLASHES CHECK ENGINE LIGHT AND ONCE READ AT DEALERSHIP SHOWS ENGINE MISFIRE CODES, HOWEVER ONCE CODE IS CLEARED ISSUE DOES NOT COME BACK FOR MONTHS. MISFIRE CAUSES DECREASED ENGINE POSER AND EVENTUALLY IF CODE IS NOT CLEARED WILL RESULT IN LOUD DINGING NOISE. KIA HAS NOT BEEN ABLE TO FIND ANY ISSUES OR FIND A…
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VEHICLE CONTINUALLY FLASHES CHECK ENGINE LIGHT AND ONCE READ AT DEALERSHIP SHOWS ENGINE MISFIRE CODES, HOWEVER ONCE CODE IS CLEARED ISSUE DOES NOT COME BACK FOR MONTHS. MISFIRE CAUSES DECREASED ENGINE POSER AND EVENTUALLY IF CODE IS NOT CLEARED WILL RESULT IN LOUD DINGING NOISE. KIA HAS NOT BEEN ABLE TO FIND ANY ISSUES OR FIND ANYTHING THAT CAN EXPLAIN THIS. THERE ARE MULTIPLE PEOPLE ONLINE WITH THIS SAME ISSUE AND YET NO RECALL FOR THIS ISSUE. KIA NEEDS TO DO SOMETHING. VEHICLE CAN BE SITTING OR IN MOTION UNDER NORMAL OPERATING ENVIRONMENTS (NO OFF-ROADING).
NHTSA ODI #11243448
64,000 miles · Jul 27, 2019
Engine
I PURCHASED MY VEHICLE LESS THAN 2 YEARS AGO. I RECEIVED REGULAR OIL CHANGES ON THE VEHICLE, WITH THE LAST ONE BEING 3 WEEKS AGO. LAST WEEK, I HEARD A LOUD RATTLING NOISE COMING FROM THE ENGINE, UPON ACCELERATION. THE NEXT DAY, WHEN I TRIED TO START IT THE NOISE GOT LOUDER. I CONTACTED MY WARRANTY COMPANY AND THE HAD IT TOWED TO…
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I PURCHASED MY VEHICLE LESS THAN 2 YEARS AGO. I RECEIVED REGULAR OIL CHANGES ON THE VEHICLE, WITH THE LAST ONE BEING 3 WEEKS AGO. LAST WEEK, I HEARD A LOUD RATTLING NOISE COMING FROM THE ENGINE, UPON ACCELERATION. THE NEXT DAY, WHEN I TRIED TO START IT THE NOISE GOT LOUDER. I CONTACTED MY WARRANTY COMPANY AND THE HAD IT TOWED TO A LOCAL REPAIR SHOP. THE REPAIR SHOP STATED THAT THE OIL WAS VERY DIRTY AND CONTAMINATED WITH METAL, AN ISSUE THAT KIA HAS HAD WITH THEIR ENGINES. THE PAPERWORK FROM MY LAST OIL CHANGE IS CURRENTLY IN MY VEHICLE, BUT THE WARRANTY COMPANY STATED THAT I NEED EVERY MAINTAINENCE RECORD SINCE I HAD THE VEHICLE FOR THEM TO MOVE FORWARD. WHO KEEPS ALMOST 2 YEARS OF OIL CHANGES? I CONTACTED KIA AND TOLD THEM THE SITUATION AND HOW I ONLY HAVE THE LAST OIL CHANGE RECORD, WHICH SHE STATED THAT'S FINE AND THAT THEY PROBABLY WON'T EVEN NEED THEM AND THEY STATED THEIR HAD RECALLS ON THE ENGINE SENSORS IN THIS MODEL THAT WERE SUPPOSED TO ALERT YOU BEFORE THE ENGINE FAILURE. THEY TOWED THE VEHICLE TO A KIA DEALERSHIP TO HANDLE TO SITUATION FROM THERE. THE DEALERSHIP CALLED ME, BEFORE EVEN LOOKING AT THE VEHICLE AND ASKED FOR THE MAINTENANCE RECORDS. HE IS SUPPOSED TO LOOK AT THE VEHICLE ON MONDAY AND WE WILL SEE FROM THERE. MY WUESTION IS THAT WITH ALL OF THE COMPLAINTS ABOUT THE FAULTY ENGINES ON THESE MODEKS, WHY HAS NOTHING BEEN DONE ABOUT IT? ARE YOU WAITING FOR SOMEONE TO BE SEVERELY INJURED TO DO SO? WHY ARE THESE VEHICLES STILL ALLOWED TO BE PURCHASED?
NHTSA ODI #11235244
93,000 miles · Jul 20, 2019
Engine
MY 2015 KIA HAD ITS FAULTY ENGINE REPLACED APPROXIMATELY 6 MONTHS AGO. I DRIVE THIS CAR APPROXIMATELY 9,000 MILES OVER THESE MONTHS AND DRIVE IT ON VACATION FROM OHIO TO WILMINGTON, NC. THE CAR WAS THOROUGHLY CHECKED BY THE DEALER BEFORE WE WENT ON THE TRIP- EVERYTHING CHECKED OUT FINE. HALFWAY THROUGH OUR VACATION, THE CHECK…
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MY 2015 KIA HAD ITS FAULTY ENGINE REPLACED APPROXIMATELY 6 MONTHS AGO. I DRIVE THIS CAR APPROXIMATELY 9,000 MILES OVER THESE MONTHS AND DRIVE IT ON VACATION FROM OHIO TO WILMINGTON, NC. THE CAR WAS THOROUGHLY CHECKED BY THE DEALER BEFORE WE WENT ON THE TRIP- EVERYTHING CHECKED OUT FINE. HALFWAY THROUGH OUR VACATION, THE CHECK ENGINE LIGHT CAME ON AND STAYED BLINKING. WE HAD IT TOWED TO A DEALER IN WILMINGTON, NC. THEY INFORMED US THAT WE HAD A BAD KNOCK SENSOR, KIA WAS COVERING THE COST AS IT WAS PART OF OUR NEW ENGINE WARRANTY. HOW DOES THIS HAPPEN WITH A BRAND NEW ENGINE? THERE IS NO RELIABILITY, AM I SUPPOSED TO LIMIT MY DRIVING BECAUSE I CAN’T DEPEND ON MY CAR? WHAT ABOUT RESALE VALUE - CLEARLY I’VE GOT A REAL LEMON HERE. WHERE IS MY RECOURSE?
NHTSA ODI #11233634
120,000 miles · Jul 19, 2019
Engine
TL* THE CONTACT OWNS A 2015 KIA SORENTO. WHILE DRIVING, THE VEHICLE STALLED WITHOUT WARNING AND THE STEERING WHEEL SEIZED AND BECAME DIFFICULT TO TURN. THE VEHICLE FAILED TO RESTART AND WAS TOWED TO AN INDEPENDENT MECHANIC TO BE DIAGNOSED, BUT THE TECHNICIAN COULD NOT FIND A FAILURE CODE. THE VEHICLE WAS NOT TAKEN TO A DEALER AN…
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TL* THE CONTACT OWNS A 2015 KIA SORENTO. WHILE DRIVING, THE VEHICLE STALLED WITHOUT WARNING AND THE STEERING WHEEL SEIZED AND BECAME DIFFICULT TO TURN. THE VEHICLE FAILED TO RESTART AND WAS TOWED TO AN INDEPENDENT MECHANIC TO BE DIAGNOSED, BUT THE TECHNICIAN COULD NOT FIND A FAILURE CODE. THE VEHICLE WAS NOT TAKEN TO A DEALER AND WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 120,000. THE VIN WAS NOT AVAILABLE.
NHTSA ODI #11233396
89,000 miles · Jul 18, 2019
Engine
2015 KIA SORENTO -BLINKING CHECK ENGINE LIGHT AND SPUTTERING OCCURRED WHILE OPERATING ON CONGESTED ROADWAYS IN AND OUT OF INCLEMENT WEATHER. STRONG BURNING SMELL COMING FROM ENGINE. NO WARNINGS PRIOR TO THIS EVENT WITH ENGINE.
NHTSA ODI #11233216
NHTSA investigations
4AQ23002 · Hyundai And Kia Abs Module Fires
Opened Nov 17, 2023 · No close date supplied
Status: open (inferred from source dates) · Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip:control Unit/module
The Office of Defects Investigation (ODI) has received eight Hyundai Motor America (Hyundai) and eight Kia America, Inc. (Kia) Part 573 Recall Reports between 2016 and 2023. The combined 16 safety recalls all involve the antilock braking system (ABS) modules or Hydraulic Electronic Control Units (HECU) manufactured by the equipment supplier Mando. The Part 573 Recall Reports contain varying defect descriptions and differing remedy descriptions for the same or similar equipment supplied by Mando. Safety recalls included in this Audit Query (AQ) review include: Hyundai recalls 20V-520, 20V-543, 21V-161, 21V-160, 21V-303, 22V-056, 22V-810, and 23V-651. Kia recalls 16V-815, 20V-518, 20V-519, 21V-137, 21V-331, 22V-051, 22V-800, and 23V-652 The purpose of this AQ is to evaluate the timeliness and scoping of Hyundai and Kia’s defect decision making and adherence with reporting requirements; and understand the varying defect descriptions and remedies between these recalls.
DP22003 · Loss Of Motive Power
Opened Sep 12, 2022 · Closed Dec 12, 2023
Status: closed (inferred from source dates) · Engine
The National Highway Traffic Safety Administration (NHTSA) received a letter dated July 13, 2022, petitioning the Agency to initiate a safety defect investigation into loss of motive power allegations attributed to oil drain pan assembly failures on certain Hyundai Motor America, Inc. and Kia America, Inc. vehicles spanning Model Years (MY) 2005-2021. The Petitioners cited examples of complaints indicating that the subject vehicles were experiencing rapid loss of engine oil due to oil drain plug back outs, resulting in loss of motive power and/or catastrophic engine damage. Additional complaints were provided which alleged that the oil drain pans lack sufficient structural integrity and are susceptible to cracking. The petition itself can be reviewed at NHTSA.gov under ODI number 11481745. On September 12, 2022, the Office of Defects Investigation (ODI) opened Defect Petition (DP22-003) to evaluate the Petitioners’ request. The Petitioners have provided additional complaints within four supplemental letters dated January 31, 2023, March 21, 2023, May 23, 2023, and August 4, 2023. ODI’s evaluation included the review and analysis of the complaints and supporting information submitted by the Petitioners, as well as additional complaints submitted directly to NHTSA which referenced either the oil drain plug or a crack in the oil pan. After reviewing the available data, ODI has not identified evidence that would support opening a defect investigation into the oil drain pan assemblies of the subject vehicles. Based on a review of the available information, a loss of motive power resulting from an oil drain plug back out has not occurred between the initial sale of a vehicle and the completion of its first oil change. If during an oil change service, a technician fails to remove the existing drain plug gasket before installing a new gasket, it is likely that a proper seal between the drain plug and the oil pan will not be made. An improper seal between the drain plug and oil pan could lead to the backing out on the drain plug, resulting in the sudden loss of oil while driving. Additionally, the provided examples of oil pan cracks were localized to the immediate vicinity of the oil drain plug and/or appeared to be the result of direct-contact with a tool during servicing. There is no information to support that a vehicle-based defect exists relating to the oil pan assembly, and instead the documented incidents are related to the failure to follow the proper maintenance procedures during oil change service. In October 2023, Hyundai published a Technical Service Bulletin (TSB) that provided detailed instructions for oil change service on its gasoline powered vehicles, specifically highlighting the need to remove and replace the existing drain plug gasket prior to reinstalling the drain plug. After a thorough review of the material submitted by the petitioner, the information already in NHTSA's possession, and the potential risks to motor vehicle safety implicated by the petitioners' allegations, NHTSA does not believe that a formal investigation is warranted. Therefore, the petition is denied. A Federal Register Notice (FRN) further detailing NHTSA’s reasons for denial of the petition will be published. The reference numbers for the complaints to NHTSA cited by the petitioner can be found in the petition submission documents in the public file for DP22-003. To review those complaints and the additional complaints ODI added to its evaluation which are cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.
DP21002 · Engine Oil Pressure Switch Leak
Opened Nov 12, 2021 · Closed Jun 26, 2023
Status: closed (inferred from source dates) · Engine; Engine And Engine Cooling:engine:oil/lubrication:pressure/temperature Sensor
In a letter dated September 30, 2021, Mr. Gerald James (the petitioner) requested that NHTSA conduct an investigation of the Model Year (MY) 2015-2017 Kia Sorento equipped with 3.3L V6 ?Lambda? engines for ?severe oil leaks? from the oil pressure switch (OPS) that could ?lead to engine failure? with little warning to the driver. Mr. James based this request on his own experience and data found in NHTSA?s Vehicle Owner Questionnaire (VOQ) database. NHTSA reviewed the material cited by the petitioner, information submitted by Kia, NHTSA?s testing, and other pertinent information in NHTSA databases.On November 12, 2021, ODI opened Defect Petition DP21-002 to evaluate the petitioner?s request. ODI performed an analysis that included evaluation of the petitioner?s vehicle, searches of ODI complaints from vehicle owners, non-dealer field reports, manufacturers? supplemental information relating to design of the component, and component testing performed by ODI.On December 16, 2021, ODI and Kia North America performed a joint inspection on the petitioner?s vehicle. ODI and Kia agreed the OPS was leaking oil and observed oil in the crevices atop the engine block. The vehicle received a new replacement OPS and was delivered back to the petitioner. The original part that was removed from the subject vehicle was retained by ODI for further analysis.As of December 30, 2022, for the MY 2015-2017 Kia Sorento population of 161,519 vehicles with 3.3L engine, NHTSA reviewed internal data and has identified no consumer complaints or field reports in its database, with unique Vehicle Identification Numbers (VIN), citing engine failure or stalling related to the petition?s allegation of defective OPS. When combined with the supplemental warranty and technical analysis from the manufacturer, field report and customer complaint data in response to the Information Request letter sent, NHTSA identified no unique VINs alleging engine failure or stalls caused by OPS leaking on the subject vehicles named in the petition.On April 4, 2022, the Vehicle Research and Test Center (VRTC) performed testing of the petitioner?s component (OPS) based on testing protocol consistent with Kia?s specifications for the subject vehicle. The testing involved the petitioner?s original OPS in a controlled system to replicate the subject vehicle?s oil pressure, flow, and temperature. VRTC determined that a vehicle would have to miss more than a dozen oil change intervals to reach low engine oil capacity. Testing also revealed the OPS would operate, as manufacturer intended, illuminating the vehicle?s MIL to alert the driver of lower oil pressure.In April of 2022, Kia North America issued a warranty extension that extended the coverage of the Oil Pressure Switch from 5 years/60,000 miles to 15 years/150,000 miles on MY 2014-2018 Sorento, MY 2014-2016 Cadenza, and MY 2015-2018 Sedona vehicles, all equipped with the 3.3L Lambda engine. The extended warranty coverage includes diagnosis, repair, and applies to customers experiencing engine oil leaking from the engine or if the engine oil pressure warning light stays illuminated after the engine is turned on.After a thorough review of the material submitted by the petitioner, information already in NHTSA's possession, testing performed by VRTC, technical information provided by Kia, the potential risks to safety implicated by the petitioner's allegation, NHTSA does not believe that an engine failure due to the alleged defect is likely and does not warrant a formal investigation. Therefore, the petition is denied. A Federal Register Notice (FRN) further detailing NHTSA?s reasons for denial of the petition will be publi
Additional source detail variants (2)
Engine And Engine Cooling:engine:oil/lubrication:pressure/temperature Sensor
In a letter dated September 30, 2021, Mr. Gerald James (the petitioner) requested that NHTSA conduct an investigation of the Model Year (MY) 2015-2017 Kia Sorento equipped with 3.3L V6 ?Lambda? engines for ?severe oil leaks? from the oil pressure switch (OPS) that could ?lead to engine failure? with little warning to the driver. Mr. James based this request on his own experience and data found in NHTSA?s Vehicle Owner Questionnaire (VOQ) database. NHTSA reviewed the material cited by the petitioner, information submitted by Kia, NHTSA?s testing, and other pertinent information in NHTSA databases.On November 12, 2021, ODI opened Defect Petition DP21-002 to evaluate the petitioner?s request. ODI performed an analysis that included evaluation of the petitioner?s vehicle, searches of ODI complaints from vehicle owners, non-dealer field reports, manufacturers? supplemental information relating to design of the component, and component testing performed by ODI.On December 16, 2021, ODI and Kia North America performed a joint inspection on the petitioner?s vehicle. ODI and Kia agreed the OPS was leaking oil and observed oil in the crevices atop the engine block. The vehicle received a new replacement OPS and was delivered back to the petitioner. The original part that was removed from the subject vehicle was retained by ODI for further analysis.As of December 30, 2022, for the MY 2015-2017 Kia Sorento population of 161,519 vehicles with 3.3L engine, NHTSA reviewed internal data and has identified no consumer complaints or field reports in its database, with unique Vehicle Identification Numbers (VIN), citing engine failure or stalling related to the petition?s allegation of defective OPS. When combined with the supplemental warranty and technical analysis from the manufacturer, field report and customer complaint data in response to the Information Request letter sent, NHTSA identified no unique VINs alleging engine failure or stalls caused by OPS leaking on the subject vehicles named in the petition.On April 4, 2022, the Vehicle Research and Test Center (VRTC) performed testing of the petitioner?s component (OPS) based on testing protocol consistent with Kia?s specifications for the subject vehicle. The testing involved the petitioner?s original OPS in a controlled system to replicate the subject vehicle?s oil pressure, flow, and temperature. VRTC determined that a vehicle would have to miss more than a dozen oil change intervals to reach low engine oil capacity. Testing also revealed the OPS would operate, as manufacturer intended, illuminating the vehicle?s MIL to alert the driver of lower oil pressure.In April of 2022, Kia North America issued a warranty extension that extended the coverage of the Oil Pressure Switch from 5 years/60,000 miles to 15 years/150,000 miles on MY 2014-2018 Sorento, MY 2014-2016 Cadenza, and MY 2015-2018 Sedona vehicles, all equipped with the 3.3L Lambda engine. The extended warranty coverage includes diagnosis, repair, and applies to customers experiencing engine oil leaking from the engine or if the engine oil pressure warning light stays illuminated after the engine is turned on.After a thorough review of the material submitted by the petitioner, information already in NHTSA's possession, testing performed by VRTC, technical information provided by Kia, the potential risks to safety implicated by the petitioner's allegation, NHTSA does not believe that an engine failure due to the alleged defect is likely and does not warrant a formal investigation. Therefore, the petition is denied. A Federal Register Notice (FRN) further detailing NHTSA?s reasons for denial of the petition will be publi
Engine
In a letter dated September 30, 2021, Mr. Gerald James (the petitioner) requested that NHTSA conduct an investigation of the Model Year (MY) 2015-2017 Kia Sorento equipped with 3.3L V6 ?Lambda? engines for ?severe oil leaks? from the oil pressure switch (OPS) that could ?lead to engine failure? with little warning to the driver. Mr. James based this request on his own experience and data found in NHTSA?s Vehicle Owner Questionnaire (VOQ) database. NHTSA reviewed the material cited by the petitioner, information submitted by Kia, NHTSA?s testing, and other pertinent information in NHTSA databases.On November 12, 2021, ODI opened Defect Petition DP21-002 to evaluate the petitioner?s request. ODI performed an analysis that included evaluation of the petitioner?s vehicle, searches of ODI complaints from vehicle owners, non-dealer field reports, manufacturers? supplemental information relating to design of the component, and component testing performed by ODI.On December 16, 2021, ODI and Kia North America performed a joint inspection on the petitioner?s vehicle. ODI and Kia agreed the OPS was leaking oil and observed oil in the crevices atop the engine block. The vehicle received a new replacement OPS and was delivered back to the petitioner. The original part that was removed from the subject vehicle was retained by ODI for further analysis.As of December 30, 2022, for the MY 2015-2017 Kia Sorento population of 161,519 vehicles with 3.3L engine, NHTSA reviewed internal data and has identified no consumer complaints or field reports in its database, with unique Vehicle Identification Numbers (VIN), citing engine failure or stalling related to the petition?s allegation of defective OPS. When combined with the supplemental warranty and technical analysis from the manufacturer, field report and customer complaint data in response to the Information Request letter sent, NHTSA identified no unique VINs alleging engine failure or stalls caused by OPS leaking on the subject vehicles named in the petition.On April 4, 2022, the Vehicle Research and Test Center (VRTC) performed testing of the petitioner?s component (OPS) based on testing protocol consistent with Kia?s specifications for the subject vehicle. The testing involved the petitioner?s original OPS in a controlled system to replicate the subject vehicle?s oil pressure, flow, and temperature. VRTC determined that a vehicle would have to miss more than a dozen oil change intervals to reach low engine oil capacity. Testing also revealed the OPS would operate, as manufacturer intended, illuminating the vehicle?s MIL to alert the driver of lower oil pressure.In April of 2022, Kia North America issued a warranty extension that extended the coverage of the Oil Pressure Switch from 5 years/60,000 miles to 15 years/150,000 miles on MY 2014-2018 Sorento, MY 2014-2016 Cadenza, and MY 2015-2018 Sedona vehicles, all equipped with the 3.3L Lambda engine. The extended warranty coverage includes diagnosis, repair, and applies to customers experiencing engine oil leaking from the engine or if the engine oil pressure warning light stays illuminated after the engine is turned on.After a thorough review of the material submitted by the petitioner, information already in NHTSA's possession, testing performed by VRTC, technical information provided by Kia, the potential risks to safety implicated by the petitioner's allegation, NHTSA does not believe that an engine failure due to the alleged defect is likely and does not warrant a formal investigation. Therefore, the petition is denied. A Federal Register Notice (FRN) further detailing NHTSA?s reasons for denial of the petition will be publi
DP21003 · Throttle Control System Vulnerabilities
Opened Nov 12, 2021 · Closed Jun 20, 2023
Status: closed (inferred from source dates) · Vehicle Speed Control:throttle
The Office of Defects Investigation (ODI) of the National Highway Traffic Safety Administration (NHTSA) received a petition letter dated October 10, 2021, requesting an investigation of possible defects in the electronic throttle control (ETC) system on certain Kia vehicles resulting in the opening of DP21-003. Accordingly, Model Year (MY) 2005-2016 Kia Optima/K5, MY 2006-2015 Kia Sorento, MY 2007-2016 Hyundai Elantra, MY 2007-2016 Hyundai Santa Fe, MY 2006-2015 Hyundai Sonatas are all part of the subject population. The petition was originally filed as a Vehicle Owner Questionnaire that can be reviewed at NHTSA.gov under reference (ODI) number 11439675.On November 12, 2021, ODI opened Defect Petition DP21-003 to evaluate the petitioner?s request. ODI performed trend analyses of the VOQs related to vehicle speed control issues for all the subject vehicles and found that none of the 52 Model/Model Year Hyundai/Kia vehicles demonstrated any actionable trend that warranted an investigation.Petitioners submitted 1119 VOQs and non-VOQ cases in which sudden uncommanded acceleration (SUA) or loss of motive power (LOMP) incidents were alleged.For the 1119 reports, 220 were incidents involving crashes, from which 69 subject Hyundai-Kia vehicles were inspected by Hyundai/Kia dealer technicians, Hyundai/Kia engineers, and/or third-party representatives.ODI found the inspections identified no vehicle defects related to the ETC system.Of the 220 crash-involved reports, 13 Event Data Recorder (EDR) records were downloaded successfully and 11 of those indicated driver error: (i.e.) pedal misapplication.A condition where the accelerator pedal is mistakenly applied instead of the brake pedal when the driver wants to stop the vehicle.In addition, ODI reviewed a scientific journal paper published in Forensic Science International in 2016 by Mr. Park et al ., as well as related test videos. ODI does not believe there is any evidence of uncontrollable SUA occurrences in any of the tests reviewed. NHTSA's Office of Vehicle Safety Compliance (OVSC) reviewed the allegations regarding the potential noncompliance with Federal Motor Vehicle Safety Standard No. 124.Based on the information provided, the Agency concludes there is insufficient information for us to determine if a possible non-compliance exists.Finally, both Hyundai and Kia informed ODI that all their vehicles manufactured after 2012 were equipped with an ETC management system, in which the engine speed will go to idle when the system sees signals from both the brake pedal and accelerator pedal at the same time; this is commonly known as the brake-throttle override system.After thoroughly assessing the material submitted by the petitioner, information already in NHTSA's possession, information submitted by Hyundai and Kia in response to an Information Request letter, and the potential risks to safety implicated by the petitioner's allegation, NHTSA does not believe that a formal investigation is warranted. After full consideration of appropriate factors, the petition is denied. A Federal Register Notice (FRN) further detailing NHTSA?s reasons for denial of the petition will be published.