NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
750 reportsMileage unknown · May 9, 2024
Engine
My car died when I stopped. No warning lights, no warning whatsoever. I had to push my car out of traffic. I was able to start it again after a couple minutes but immediately a knocking sound started. I was encouraged to get an oil analysis by my mechanic friend in which it states my oil is fine and describes the metal found in …
Read full complaint
My car died when I stopped. No warning lights, no warning whatsoever. I had to push my car out of traffic. I was able to start it again after a couple minutes but immediately a knocking sound started. I was encouraged to get an oil analysis by my mechanic friend in which it states my oil is fine and describes the metal found in the oil and where it likely came from.
NHTSA ODI #11587843
147,000 miles · May 7, 2024
Service BrakesFire
The contact owned a 2015 Kia Sorento. The contact stated that the vehicle was driven to a store, and when the vehicle was turned off, the contact saw smoke and fire coming from the hood. The contact went into the store to get a fire extinguisher and bystanders used their fire extinguishers and attempted to extinguish the fire. T…
Read full complaint
The contact owned a 2015 Kia Sorento. The contact stated that the vehicle was driven to a store, and when the vehicle was turned off, the contact saw smoke and fire coming from the hood. The contact went into the store to get a fire extinguisher and bystanders used their fire extinguishers and attempted to extinguish the fire. The Fire department extinguished the fire. There were no occupants in the vehicle. No injuries were sustained. The contact stated that all vehicles were moved away from the fire, however, one vehicle was not moved. The contact stated that the vehicle was not on fire and it was unknown if there was damage to the vehicle. There were no occupants in that vehicle. There was a fire department report filed. There was a police report filed. The vehicle was destroyed. The vehicle was towed to the contact's residence. The contact discovered the NHTSA Campaign Number: 21V331000 (Service Brakes, Hydraulic), however, the contact was not notified that their VIN was included. The manufacturer was made aware of the failure. The failure mileage was approximately 147,000.
NHTSA ODI #11587406
Mileage unknown · May 1, 2024
EngineEngine And Engine Cooling
See attached document for complaint
NHTSA ODI #11586315
88,000 miles · Apr 30, 2024
Steering
The contact owns a 2015 Kia Sorento. The contact stated that while driving at an undisclosed speed, the contact noticed a popping sound coming from the steering column. The contact stated that the failure occurred while making a turn. The contact stated that the failure was intermittent at first but had become a persistent failu…
Read full complaint
The contact owns a 2015 Kia Sorento. The contact stated that while driving at an undisclosed speed, the contact noticed a popping sound coming from the steering column. The contact stated that the failure occurred while making a turn. The contact stated that the failure was intermittent at first but had become a persistent failure. The vehicle was taken to an independent mechanic where it was diagnosed with a fractured steering column. The contact was informed that the steering column needed to be replaced. The vehicle was not repaired. In addition, the contact stated that the independent mechanic had not provided a full diagnostic report. The contact was informed that the steering column needed to be disassembled to be able to provide a complete diagnostic report. The manufacturer was not made aware of the failure. The failure mileage was approximately 88,000.
NHTSA ODI #11586166
Mileage unknown · Apr 23, 2024
Engine
1. The engine seized and lost total power at 74,795 miles due to faulty rod bearings manufactured by KIA and due to metal shavings left within the engine compartments. Yes, I have the vehicle in my possession. It is stored at my apartment garage and it is available for inspection. 2. I was driving my vehicle on the highway p…
Read full complaint
1. The engine seized and lost total power at 74,795 miles due to faulty rod bearings manufactured by KIA and due to metal shavings left within the engine compartments. Yes, I have the vehicle in my possession. It is stored at my apartment garage and it is available for inspection. 2. I was driving my vehicle on the highway prior to sudden engine seizure and loss of power. The check engine light appeared for the first time on [XXX]. I immediately took my vehicle to my mechanic (same day on [XXX]) where it seized and lost complete power on the road. It had to be pushed into the mechanic's garage by hand. Total loss of power of my vehicle could have resulted in a catastrophic accident and injuries to myself and others. I could have lost control of the vehicle and I could have been rear-ended or side-swiped at a high speed on the highway or the street. Additionally, my vehicle was recalled due to a faulty HECU/ABS Module, which could have resulted in engine fire and it was recalled due to increased theft risk because my vehicle was manufactured without an engine immobilizer. KIA did not notify me of any recalls nor did they notify me of their self-proclaimed and self-manufactured KSDS and "Product Improvement Campaign - P11802". KIA Corp (Irvine, CA) only provided a SAMPLE letter on 11.13.23. 3. Yes, the defect was confirmed by my mechanic, KIA Corp, and by the Grand KIA dealership in Thornton, Colorado. 4. Yes, the vehicle was inspected by the Grand KIA dealership in Thornton, Colorado. Grand KIA confirmed that there was no rotation of the crankshaft and no power or codes detected upon scanning the engine. Grand KIA confirmed that the engine failure was due to their faulty rod bearings, but denied engine replacement because I did not upgrade my engine with their KSDS/"Product Improvement Campaign", although they upgraded my car with the KSDS upon diagnosis to cover up. Grand KIA stated that engine seizure is not a safety issue. 5. Yes, check engine light. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF IN
NHTSA ODI #11584860
Mileage unknown · Apr 22, 2024
Engine
Coolant leak, due to stripped head bolts.
NHTSA ODI #11584463
Mileage unknown · Apr 22, 2024
Structure
THE PAINT IS BUBBLING AND BLISTERING ALONG WITH DELMINATION IN SOME AREA'S. I SEE THIS IS A KNOWN REOCCURRING ISSUE WITH THE SNOW WHITE PEARL PAINT ON MANY OTHER KIA'S AS WELL. MY CAR ONLY HAS 31,000 MILES ON IT AND HAS BEEN WELL TAKEN CARE OF WITH THE EXCEPTION OF THIS MANUFACTURER ISSUE. FIRST NOTICED A SMALL DELAMINATION ON …
Read full complaint
THE PAINT IS BUBBLING AND BLISTERING ALONG WITH DELMINATION IN SOME AREA'S. I SEE THIS IS A KNOWN REOCCURRING ISSUE WITH THE SNOW WHITE PEARL PAINT ON MANY OTHER KIA'S AS WELL. MY CAR ONLY HAS 31,000 MILES ON IT AND HAS BEEN WELL TAKEN CARE OF WITH THE EXCEPTION OF THIS MANUFACTURER ISSUE. FIRST NOTICED A SMALL DELAMINATION ON THE A PILLAR IN 2019, NOW BLISTERS ARE NOTICED AND SPEADING OVER MANY PANELS OF THE VEHICLE
NHTSA ODI #11584397
Mileage unknown · Apr 19, 2024
Engine
You forced kia into an extended warranty for an engine defect. They warranty 2016/17 models under WTY035 but it also happens to 2015 models. I'm hoping this can be extended.
NHTSA ODI #11584064
Mileage unknown · Mar 29, 2024
Engine
HEAD GASKET BLOWING
NHTSA ODI #11580153
68,000 miles · Mar 27, 2024
Power TrainService Brakes, Hydraulic
The contact owns a 2015 Kia Sorento. The contact stated that while driving at an undisclosed speed, there was an abnormal knocking sound emanating from the engine compartment. No warning lights were illuminated. The vehicle was taken to the dealer, who was unable to duplicate the failure. The vehicle was not repaired. After inve…
Read full complaint
The contact owns a 2015 Kia Sorento. The contact stated that while driving at an undisclosed speed, there was an abnormal knocking sound emanating from the engine compartment. No warning lights were illuminated. The vehicle was taken to the dealer, who was unable to duplicate the failure. The vehicle was not repaired. After investigating the failure, the contact related the failure to the remedy for NHTSA Campaign Number: 21V331000 (Service Brakes, Hydraulic); the VIN was included, and the vehicle was repaired. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The failure mileage was 68,000.
NHTSA ODI #11579810
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.
Illustration