NHTSA owner reports · September 18, 2026 snapshot.
Engine complaints
360 reportsClear category filter100 miles · Jan 7, 2019
Engine
WE WERE DRIVING AND HEAR A RATTLING NOICE AND ALL OF A SUDDEN OUR VEHICLE STARTED SHAKING AND WE PULLED OVER. THIS WAS ABOUT 3 HOURS AFTER WE HAD AN OIL CHANGE AT THE DEALERSHIP. THIS WAS THE SECOND TIME AFTER AN OIL CHANGE WE HAD ISSUES. WE ATTEMPTED TO TURN ON THE CAR TO GET IT TO SAFETY BUT COULD NOT POWER ON. WE HAD TO GET T…
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WE WERE DRIVING AND HEAR A RATTLING NOICE AND ALL OF A SUDDEN OUR VEHICLE STARTED SHAKING AND WE PULLED OVER. THIS WAS ABOUT 3 HOURS AFTER WE HAD AN OIL CHANGE AT THE DEALERSHIP. THIS WAS THE SECOND TIME AFTER AN OIL CHANGE WE HAD ISSUES. WE ATTEMPTED TO TURN ON THE CAR TO GET IT TO SAFETY BUT COULD NOT POWER ON. WE HAD TO GET TOWED AND A MECHANIC ADVISED US WE WOULD NEED A WHOLE NEW ENGINE
NHTSA ODI #11164924
90,600 miles · Dec 18, 2018
EngineSteering
TL* THE CONTACT OWNS A 2015 KIA SORENTO. EVER SINCE THE CONTACT PURCHASED THE VEHICLE SIX MONTHS AGO, THERE HAD BEEN AN ABNORMAL TAPPING SOUND COMING FROM THE ENGINE. ALSO, THE STEERING WHEEL MADE A LOUD POPPING NOISE THAT CAUSED IT TO VIBRATE. THE FAILURES OCCURRED UPON STARTING THE VEHICLE. IN ADDITION, THE CHECK ENGINE INDICA…
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TL* THE CONTACT OWNS A 2015 KIA SORENTO. EVER SINCE THE CONTACT PURCHASED THE VEHICLE SIX MONTHS AGO, THERE HAD BEEN AN ABNORMAL TAPPING SOUND COMING FROM THE ENGINE. ALSO, THE STEERING WHEEL MADE A LOUD POPPING NOISE THAT CAUSED IT TO VIBRATE. THE FAILURES OCCURRED UPON STARTING THE VEHICLE. IN ADDITION, THE CHECK ENGINE INDICATOR ILLUMINATED. THE VEHICLE WAS TAKEN TO FRIENDLY KIA (5819 US-19, NEW PORT RICHEY, FL 34652), BUT WAS NOT DIAGNOSED OR REPAIRED. THE STAFF STATED THAT THEY WERE TOO BUSY TO ASSIST. THE MANUFACTURER ADVISED THE CONTACT TO CALL NHTSA. THE FAILURE MILEAGE WAS 90,600.
NHTSA ODI #11162330
75,000 miles · Dec 17, 2018
Engine
TAKATA RECALL. I HAVE A 2015 KIA SORENTO. AT ABOUT 76,000 MILES, THE ENGINE BEGAN TO BURN OIL. I HAD IT CHECKED FOR A LEAK, BUT THE MECHANICS COULDN'T FIND ANYTHING. WHEN I START THE ENGINE, BLUE SMOKE EMITS FROM THE TAIL PIPE. I AM LOOSING ABOUT A QUART OF OIL EVERY 200 MILES.
NHTSA ODI #11162073
100,000 miles · Dec 12, 2018
Engine
TL* THE CONTACT OWNS A 2015 KIA SORENTO. WHILE DRIVING APPROXIMATELY 35 MPH, A LOUD POPPING SOUND WAS HEARD FROM THE ENGINE AREA AND THE VEHICLE SUDDENLY STALLED. THE VEHICLE WAS TOWED TO KIA OF ORLANDO (9550 S. ORANGE BLOSSOM TRL, ORLANDO, FL) WHERE IT WAS DIAGNOSED THAT THE ENGINE FAILED AND NEEDED TO BE REPLACED. THE VEHICLE …
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TL* THE CONTACT OWNS A 2015 KIA SORENTO. WHILE DRIVING APPROXIMATELY 35 MPH, A LOUD POPPING SOUND WAS HEARD FROM THE ENGINE AREA AND THE VEHICLE SUDDENLY STALLED. THE VEHICLE WAS TOWED TO KIA OF ORLANDO (9550 S. ORANGE BLOSSOM TRL, ORLANDO, FL) WHERE IT WAS DIAGNOSED THAT THE ENGINE FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 100,000.
NHTSA ODI #11160986
77,000 miles · Dec 12, 2018
Engine
TL* THE CONTACT OWNS A 2015 KIA SORENTO. THE CONTACT STATED THAT THE VEHICLE STALLED WITHOUT WARNING. THE VEHICLE WAS TOWED TO ROMEO KIA OF KINGSTON (111 SCHWENK DR, KINGSTON, NY 12401, (845) 477-5400) WHERE IT WAS DIAGNOSED THAT THE CONNECTING ROD FRACTURED THROUGH THE MIDDLE OF THE ENGINE ASSEMBLY AND METAL FRAGMENTS WERE PRES…
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TL* THE CONTACT OWNS A 2015 KIA SORENTO. THE CONTACT STATED THAT THE VEHICLE STALLED WITHOUT WARNING. THE VEHICLE WAS TOWED TO ROMEO KIA OF KINGSTON (111 SCHWENK DR, KINGSTON, NY 12401, (845) 477-5400) WHERE IT WAS DIAGNOSED THAT THE CONNECTING ROD FRACTURED THROUGH THE MIDDLE OF THE ENGINE ASSEMBLY AND METAL FRAGMENTS WERE PRESENT. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 77,000.
NHTSA ODI #11160893
93,000 miles · Dec 10, 2018
Engine
VEHICLE STALLS DURING NORMAL OPERATION BOTH WHILE MOVING AT TRAFFIC SPEEDS AND AT A STOP. INITIAL OCCURANCE WAS WHILE TURNING LEFT THRU AN INTERSECTION. ENGINE RPMS DROPPED TO ZERO AND ENGINE QUIT RUNNING. RESTARTED AFTER SHIFTING INTO NEUTRAL. HAPPENED 15 ADDITIONAL TIMES DURING TWENTY MINUTE DRIVE HOME - WHILE STOPPED AT A LIG…
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VEHICLE STALLS DURING NORMAL OPERATION BOTH WHILE MOVING AT TRAFFIC SPEEDS AND AT A STOP. INITIAL OCCURANCE WAS WHILE TURNING LEFT THRU AN INTERSECTION. ENGINE RPMS DROPPED TO ZERO AND ENGINE QUIT RUNNING. RESTARTED AFTER SHIFTING INTO NEUTRAL. HAPPENED 15 ADDITIONAL TIMES DURING TWENTY MINUTE DRIVE HOME - WHILE STOPPED AT A LIGHT, SLOWING FOR OTHER VEHICLES, AND WHEN NOT ACTUALLY ACCELERATING WHILE DRIVING DOWN THE ROAD. VEHICLE WILL NOT IDLE ONCE RESTARTED WITHOUT STALLING OUT. BATTERY CONNECTIONS ARE TIGHT, OIL LEVELS ARE NORMAL. VEHICLE SPEED VARIED FROM STOPPED AT A TRAFFIC LIGHT TO 55 MPH ON OPEN ROAD. STALLING OCCURRED WHENEVER ACCELERATOR PEDAL WAS NOT DEPRESSED. SHIFTING INTO NEUTRAL AND REVVING MOTOR PREVENTED STALLING WHILE AT A STOP. UNLESS UNDER ACCELERATION VEHICLE ENGINE WILL NOT REMAIN OPERATING. I AM NOT A QUALIFIED MECHANIC OR SAFETY EXPERT, BUT THIS CONDITION SEEMS UNSAFE TO ME.
NHTSA ODI #11157343
62,000 miles · Dec 7, 2018
Engine
TL* THE CONTACT OWNS A 2015 KIA SORENTO. WHILE OPERATING THE VEHICLE, THE CHECK ENGINE INDICATOR SUDDENLY FLASHED ON AND OFF AND THE VEHICLE'S SPEED WOULD NOT INCREASE PAST 20 MPH. THE MESSAGE "LIMP HOME MODE" WAS ALSO DISPLAYED. THE VEHICLE WAS TOWED TO ANTIOCH KIA (119 IL-173, ANTIOCH, IL) WHERE IT WAS DIAGNOSED THAT THE NOX S…
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TL* THE CONTACT OWNS A 2015 KIA SORENTO. WHILE OPERATING THE VEHICLE, THE CHECK ENGINE INDICATOR SUDDENLY FLASHED ON AND OFF AND THE VEHICLE'S SPEED WOULD NOT INCREASE PAST 20 MPH. THE MESSAGE "LIMP HOME MODE" WAS ALSO DISPLAYED. THE VEHICLE WAS TOWED TO ANTIOCH KIA (119 IL-173, ANTIOCH, IL) WHERE IT WAS DIAGNOSED THAT THE NOX SENSOR WAS FAULTY. THE NOX SENSOR WAS REPROGRAMMED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 62,000.
NHTSA ODI #11156840
80,100 miles · Dec 3, 2018
Engine
I WAS DRIVING MY CAR HOME FROM WORK AND IT SHUT OFF ON ME AS I WAS DRIVING ON A BUSY CITY STREET. I TRIED TO START IT AND IT JUST KEPT SHUTTING OFF. I HAD SOMEONE HOOK UP A COMPUTER ON IT AND IT SAID SOMETHING WAS WRONG WITH MY CAMSHAFT TIMING.I HAD NO WARNINGS LEADING UP TO THIS. IT JUST SHUT OFF IN THE MIDDLE OF DRIVING IT.
NHTSA ODI #11155801
990,000 miles · Sep 27, 2018
Engine
I WAS DRIVING MY CAR ON THE HIGHWAY WHEN MY ENGINE STOP RUNNING, IM TOLD BY KIA THE ENGINE SEIZE UP AND IT IS NOT COVERED
NHTSA ODI #11132021
88,000 miles · Aug 21, 2018
Engine
PURCHASED A USED 2015 KIA SORENTO FROM A USED CAR LOT ON FEBRUARY 15, 2018. I'VE EXPERIENCED NO ISSUES WITH THE VEHICLE UNTIL AUGUST 19, 2018 WHILE DRIVING HOME FROM WORK. WHILE DRIVING ON THE FREEWAY, AND ACCELERATING, THE VEHICLE COMPLETELY STALLED. WE PULLED THE VEHICLE OVER AND TRIED OUR BEST TO GET IT TO RESTART. IT HAD TO …
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PURCHASED A USED 2015 KIA SORENTO FROM A USED CAR LOT ON FEBRUARY 15, 2018. I'VE EXPERIENCED NO ISSUES WITH THE VEHICLE UNTIL AUGUST 19, 2018 WHILE DRIVING HOME FROM WORK. WHILE DRIVING ON THE FREEWAY, AND ACCELERATING, THE VEHICLE COMPLETELY STALLED. WE PULLED THE VEHICLE OVER AND TRIED OUR BEST TO GET IT TO RESTART. IT HAD TO BE TOWED HOME. A CERTIFIED MECHANIC INSPECTED THE VEHICLE AND CONFIRMED THE KIA HAD COMPLETE ENGINE FAILURE DUE TO THE ENGINE SEIZING. PLEASE CONTACT ME FOR INSPECTION DOCUMENTATION (CURRENTLY AT WORK AND UNABLE TO UPLOAD THE RECEIPT).
NHTSA ODI #11121504
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.