NHTSA owner reports · September 18, 2026 snapshot.
Service Brakes, Hydraulic complaints
30 reportsClear category filter23,226 miles · Feb 11, 2011
Service Brakes, HydraulicWheels
TOOK CAR TO DEALER FOR ANNUAL STATE VEHICLE INSPECTION AND TO HAVE "CHIRPING" NOISE FROM BRAKES CHECKED. REAR BRAKE PADS WERE AT 3/32"; MIN ALLOWED IS 2/32". FRONT PADS OK AT +7/32". REPLACED REAR PADS, MACHINED ROTORS. MILEAGE WAS 23,226; CAR PURCHASED FEB2008 AND WAS REGULARLY SERVICED AT DEALER. DEALER SA ADVISED THAT PA…
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TOOK CAR TO DEALER FOR ANNUAL STATE VEHICLE INSPECTION AND TO HAVE "CHIRPING" NOISE FROM BRAKES CHECKED. REAR BRAKE PADS WERE AT 3/32"; MIN ALLOWED IS 2/32". FRONT PADS OK AT +7/32". REPLACED REAR PADS, MACHINED ROTORS. MILEAGE WAS 23,226; CAR PURCHASED FEB2008 AND WAS REGULARLY SERVICED AT DEALER. DEALER SA ADVISED THAT PAD WEAR WAS NORMAL AND THAT 'ON THIS MODEL THE REAR BRAKES ALWAYS WEAR FASTER'. WHEN THIS WAS DISPUTED THE SA SAID THAT CORROSION ON CALIPER DID NOT ALLOW PADS TO WITHDRAW AND THAT CONSTANT CONTACT WORE OUT THE PADS. WHEN ASKED ABOUT WARRANTY COVERAGE SA SAID THAT BRAKES ARE ONLY COVERED FOR 12 MONTHS. SUBSEQUENTLY NOTED THAT ON SIDE OF CAR WITH STICKING CALIPER THAT THE PAINT ON BOTH STEEL WHEELS HAS PEELED AND WHEELS HAVE RUSTED. TIRES HAVE BEEN ROTATED, FRONT-TO-BACK, SEVERAL TIMES SINCE NEW. POSSIBLE THAT EXCESSIVE HEAT FROM DRAGGING PADS OVERHEATED WHEELS AND DAMAGED PAINT. ALSO POSSIBLE THAT THERE WAS EXCESSIVE HEAT TO WHEEL BEARINGS. WILL HAVE THIS CHECKED AT NEXT SERVICE, OR SOONER. THIS PREMATURE REAR PAD WEAR IS NOT NORMAL FOR HYUNDAI. ALSO, PRESENTLY DRIVING A 2001 ELANTRA THAT WENT 60K+ BEFORE NEEDING BRAKES. NEVER OWNED ANY CAR THAT HAD REAR BRAKES WEAR BEFORE FRONT. THE NUMBER OF COMPLAINTS REGISTERED INDICATES THAT THIS IS A DESIGN/MATERIAL ISSUE THAT NEEDS CORRECTING BEFORE SOMEONE IS HURT. *TR
NHTSA ODI #10381575
45,570 miles · Jan 21, 2011
Service Brakes, Hydraulic
NO FAILURE OCCURRED. THE PROBLEM WAS DETECTED BEFORE FAILURE. I HAD THE BRAKES CHECKED AT JUST UNDER 45,600 MILES EXPECTING TO HAVE THE BRAKE PADS REPLACE. INSPECTION SHOWED THAT THE REAR BRAKE ROTORS WERE MADE OF DEFECTIVE METAL WHICH CORRODED AND PITTED BADLY. IT DESTROYED THE OUTER PART OF THE BRAKE PADS SO THEY DID NOT…
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NO FAILURE OCCURRED. THE PROBLEM WAS DETECTED BEFORE FAILURE. I HAD THE BRAKES CHECKED AT JUST UNDER 45,600 MILES EXPECTING TO HAVE THE BRAKE PADS REPLACE. INSPECTION SHOWED THAT THE REAR BRAKE ROTORS WERE MADE OF DEFECTIVE METAL WHICH CORRODED AND PITTED BADLY. IT DESTROYED THE OUTER PART OF THE BRAKE PADS SO THEY DID NOT MAKE CONTACT WITH THE ROTOR. LESS THAN ONE HALF OF THE BRAKE PAD WAS PROVIDING BRAKING ABILITY. THE ROTORS HAD TO BE REPLACED ON THE REAR WHEELS AS WELL AS ALL BRAKE PADS ON ALL 4 WHEELS. THE BRAKE PAD REPLACEMENT IS EXPECTED MAINTENANCE. THE REAR WHEEL ROTORS WERE DEFECTIVE PARTS. *TR
NHTSA ODI #10378119
Mileage unknown · Nov 3, 2010
Service Brakes, Hydraulic
REAR BRAKE ROTORS RUSTED. REAR BRAKES WORN. REPLACED REAR BRAKES AND RESURFACED ROTORS. VEHICLE ONLY HAS 35,570 MILES. FRONT BRAKES FINE. REAR BRAKES SHOULD BE RUSTED AND NEED REPAIR AT 35,570 MILES. *TR
NHTSA ODI #10363867
14,000 miles · Sep 28, 2010
Service Brakes, Hydraulic
TL*THE CONTACT OWNS A 2008 HYUNDAI SONATA. WHILE DRIVING APPROXIMATELY 20-25 MPH, THE CONTACT DEPRESSED THE BRAKE PEDAL AND NOTICED A VERY LOUD RUBBING SOUND, LIKE METAL TO METAL. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER BUT THERE WERE NO REPAIRS PERFORMED. THE VEHICLE WAS TAKEN TO A LOCAL REPAIR SHOP WHERE THE CONTACT WAS …
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TL*THE CONTACT OWNS A 2008 HYUNDAI SONATA. WHILE DRIVING APPROXIMATELY 20-25 MPH, THE CONTACT DEPRESSED THE BRAKE PEDAL AND NOTICED A VERY LOUD RUBBING SOUND, LIKE METAL TO METAL. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER BUT THERE WERE NO REPAIRS PERFORMED. THE VEHICLE WAS TAKEN TO A LOCAL REPAIR SHOP WHERE THE CONTACT WAS TOLD TO TAKE THE VEHICLE BACK TO THE DEALER. THE DEALER POLISHED THE DRUMBS AND RESET THE BRAKE PADS BUT THE FAILURE OCCURRED AGAIN. THE VEHICLE WAS TAKEN BACK TO THE DEALER AT LEAST EIGHT TIMES AND THE DEALER POLISHED THE DRUMS AND RESET THE PADS ON EACH VISIT. THE VEHICLE HAD NOT BEEN REPAIRED. THE VIN WAS UNAVAILABLE. THE FAILURE MILEAE WAS APPROXIMATELY 14,000 AND THE CURRENT MILEAGE WAS APPROXIMATELY 18,500.
NHTSA ODI #10357999
22,000 miles · Sep 21, 2010
Service Brakes, Hydraulic
TL* THE CONTACT OWNS A 2008 HYUNDAI SONATA. WHILE DRIVING APPROXIMATELY 20 MPH, THE CONTACT ENGAGED THE BRAKE PEDAL AND HEARD A METAL TO MEDAL LOUD SCREECHING NOISE. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHERE THEY INFORMED THE CONTACT THAT WHEN THE VEHICLE WAS PRODUCED THE MANUFACTURER DID NOT LUBRICATE THE PISTONS PROP…
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TL* THE CONTACT OWNS A 2008 HYUNDAI SONATA. WHILE DRIVING APPROXIMATELY 20 MPH, THE CONTACT ENGAGED THE BRAKE PEDAL AND HEARD A METAL TO MEDAL LOUD SCREECHING NOISE. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHERE THEY INFORMED THE CONTACT THAT WHEN THE VEHICLE WAS PRODUCED THE MANUFACTURER DID NOT LUBRICATE THE PISTONS PROPERLY; AND THE QUALITY OF THE LUBRICANT WAS INSUFFICIENT. THE REAR ROTORS WERE REPLACED AT THE OWNER'S EXPENSE. ADDITIONALLY, THE OWNER'S MANUAL INSTRUCTED THAT THE BRAKES BE DIAGNOSED EVERY 15,000 MILES, AND IF THE BRAKES LUBRICATION WAS NOT FUNCTIONING PROPERLY THEN THE CALIPERS WOULD NEED TO BE REPLACED. THE CONTACT STATED THE INFORMATION PROVIDED IN THE MANUAL WAS NOT COMMUNICATED TO HIM AT THE TIME THE VEHICLE WAS PURCHASED, WHICH WAS A SIGNIFICANT CONCERN. THE FAILURE MILEAGE WAS 22,000. THE VIN WAS UNAVAILABLE.
NHTSA ODI #10356794
24,000 miles · Sep 9, 2010
Service Brakes, Hydraulic
I HAVE A 2008 HYUNDAI SONATA AND HAD TO REPLACE MY REAR BRAKES AT 24,000 MILES. MY DEALER SAID THAT IT HAD SOMETHING TO DO WITH THE CALIPERS STICKING AND THIS CAUSED MY REAR BRAKES TO WEAR PREMATURELY. MY DEALER ALSO INDICATED THAT THIS IS "A HYUNDAI PROBLEM" AND THEY SEE THIS A LOT WITH "THESE CARS." I CONTACTED HYUNDAI AND …
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I HAVE A 2008 HYUNDAI SONATA AND HAD TO REPLACE MY REAR BRAKES AT 24,000 MILES. MY DEALER SAID THAT IT HAD SOMETHING TO DO WITH THE CALIPERS STICKING AND THIS CAUSED MY REAR BRAKES TO WEAR PREMATURELY. MY DEALER ALSO INDICATED THAT THIS IS "A HYUNDAI PROBLEM" AND THEY SEE THIS A LOT WITH "THESE CARS." I CONTACTED HYUNDAI AND INFORMED THEM OF THIS ISSUE, AND THEY WERE VERY RUDE TO SAY THE LEAST WITH REGARD TO THEIR RESPONSE. THEY CLEARLY TOOK NO RESPONSIBILITY FOR THIS ISSUE AND FOR THE MOST PART LAYS THE BLAME ON THE DRIVER AND THE DRIVING CONDITIONS. UNDER NO CIRCUMSTANCES SHOULD THE REAR BRAKES REQUIRE REPLACING AT SUCH LOW MILEAGE. THERE ARE MANY OTHER COMPLAINTS LISTED HERE WHERE OTHER OWNERS OF THESE CARS HAVE HAD THE SAME PROBLEMS, YET NO INVESTIGATION IS BEING LAUNCHED AND HYUNDAI CLEARLY REFUSES TO TAKE RESPONSIBILITY FOR CLEARLY SUBSTANDARD BRAKING SYSTEMS. *TR
NHTSA ODI #10354738
27,100 miles · Sep 3, 2010
Service Brakes, Hydraulic
TL*THE CONTACT OWNS A 2008 HYUNDAI SONATA. SHE HEARD A NOISE NEAR THE BRAKES. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALERSHIP WHERE THE BRAKES AND ROTORS WERE REPLACED. THE CONTACT CALLED THE MANUFACTURER WHO STATED THAT THE BRAKES SHOULD BE INSPECTED EVERY 15,000 MILES BUT OFFERED NO FURTHER ASSISTANCE. THE CURRENT AND FAILUR…
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TL*THE CONTACT OWNS A 2008 HYUNDAI SONATA. SHE HEARD A NOISE NEAR THE BRAKES. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALERSHIP WHERE THE BRAKES AND ROTORS WERE REPLACED. THE CONTACT CALLED THE MANUFACTURER WHO STATED THAT THE BRAKES SHOULD BE INSPECTED EVERY 15,000 MILES BUT OFFERED NO FURTHER ASSISTANCE. THE CURRENT AND FAILURE MILEAGES WERE APPROXIMATELY 27,100.
NHTSA ODI #10353751
26,896 miles · Aug 16, 2010
Service Brakes, Hydraulic
AT 10K MILES REAR BRAKE ROTORS WERE GLAZED FROM STICKING BRAKE PADS; ROTORS WERE MACHINED AND BRAKE PADS REPLACED. AT 26.8K MILES THE REAR BRAKES WERE "METAL TO METAL" AND BRAKE PADS COMPLETELY WORN DUE TO DRIVERS SIDE BRAKE PAD BEING SEIZED INTO ROTORS (DEALERS LANGUAGE). DEALER ATTRIBUTED BRAKE FAILURE TO INCREASED CORROS…
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AT 10K MILES REAR BRAKE ROTORS WERE GLAZED FROM STICKING BRAKE PADS; ROTORS WERE MACHINED AND BRAKE PADS REPLACED. AT 26.8K MILES THE REAR BRAKES WERE "METAL TO METAL" AND BRAKE PADS COMPLETELY WORN DUE TO DRIVERS SIDE BRAKE PAD BEING SEIZED INTO ROTORS (DEALERS LANGUAGE). DEALER ATTRIBUTED BRAKE FAILURE TO INCREASED CORROSION DUE TO OUR MAINE LOCATION. NONE OF THE OTHER VEHICLES WE HAVE HAD EXHIBITED THESE PROBLEMS. THIS IS A SAFETY ISSUE IN THAT I HAVE BEEN OPERATING THE CAR FOR AN INDETERMINATE TIME WITH NO REAR BRAKES. THE DEFECT WAS DISCOVERED DURING A NORMAL TIRE ROTATION. I SUSPECT HYUNDAI ENCOURAGES TIRE ROTATION AT EVERY SERVICE INTERVAL IN ORDER TO HAVE AN OPPORTUNITY TO EXAMINE REAR BRAKES. *TR
NHTSA ODI #10349631
27,000 miles · Jul 6, 2010
Service Brakes, Hydraulic
TL*THE CONTACT OWNS A 2009 HYUNDAI SONATA. WHILE DRIVING 35 MPH THERE WAS A SQUEAKING AND A GRINDING NOISE COMING FROM THE BRAKES. THE PIN THAT CONTROLS THE BRAKE PADS AND ROTORS WAS WORN. THE PIN CONTROLLED THE MOVEMENT IN THE BRAKE CALIPERS AND WHEN IT DOES NOT MOVE IT DETERIORATES THE CALIPERS AND ROTORS. THE VEHICLE WAS TAKE…
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TL*THE CONTACT OWNS A 2009 HYUNDAI SONATA. WHILE DRIVING 35 MPH THERE WAS A SQUEAKING AND A GRINDING NOISE COMING FROM THE BRAKES. THE PIN THAT CONTROLS THE BRAKE PADS AND ROTORS WAS WORN. THE PIN CONTROLLED THE MOVEMENT IN THE BRAKE CALIPERS AND WHEN IT DOES NOT MOVE IT DETERIORATES THE CALIPERS AND ROTORS. THE VEHICLE WAS TAKEN TO THE DEALER WHO STATED THAT SHE HAD TO REPLACE THE BRAKES AT HER EXPENSE SINCE THEY WERE NOT COVERED UNDER THE WARRANTY OR RECALL. THE MANUFACTURER WAS NOT CONTACTED. THE VIN WAS UNAVAILABLE. THE FAILURE AND CURRENT MILEAGE WAS 27,000.
NHTSA ODI #10341583
35,000 miles · Jun 12, 2010
Service Brakes, Hydraulic
REAR BRAKES STICKING ON. FIRST OCCURRED AT 35,000 MILES AND DEALER NOTIFIED ME THAT THE BRAKE PADS NEEDED REPLACED, BUT UPON INSPECTION I SAW THAT ONLY ONE PAD WAS WORN TO THE METAL, AND THE OTHERS WERE AT > 50% LIFE. I REPLACED THE PAD BUT THE CALIPER AND SLIDER DESIGN IS DEFECTIVE AND THE FAILURE HAPPENED AGAIN AT 40,000 MIL…
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REAR BRAKES STICKING ON. FIRST OCCURRED AT 35,000 MILES AND DEALER NOTIFIED ME THAT THE BRAKE PADS NEEDED REPLACED, BUT UPON INSPECTION I SAW THAT ONLY ONE PAD WAS WORN TO THE METAL, AND THE OTHERS WERE AT > 50% LIFE. I REPLACED THE PAD BUT THE CALIPER AND SLIDER DESIGN IS DEFECTIVE AND THE FAILURE HAPPENED AGAIN AT 40,000 MILES. THIS TIME THE CAR BEGAN JERKING AND SUFFERED LOSS OF BRAKE PERFORMANCE AS THE INDICATOR, ALONG WITH NOISE, SMOKE, AND ODOR. THE HYUNDAI DEALER (MIKE MILLER IN PEORIA, IL) WOULD NOT FIX THE PROBLEM UNDER WARRANTY, INSTEAD SAYING IT WAS A NORMAL WEAR ITEM. *TR
NHTSA ODI #10335982
Official recalls
3Aug 12, 2013
Hyundai is recalling certain model year 2006-2010 Sonata vehicles manufactured March 1, 2005, through January 21, 2010; and model year 2006-2011 Azera vehicles manufactured September 27, 2005, through November 22, 2010 originally sold in, or currently registered in, Connecticut, Delaware, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia, Wisconsin and the District of Columbia. Road salt and water can enter portions of the rear crossmember, leading to corrosion of the crossmember steel. This may lead to detachment of one of the rear control arms.
Consequence & remedy
Consequence: Control arm separation may suddenly change the rear wheel alignment, affecting the handling of the vehicle, increasing the risk of a crash.
Remedy: Hyundai will notify owners, and dealers will repair or replace the crossmember assembly. The recall began on October 8, 2013. Owners may contact Hyundai Customer Care Center at 1-800-633-5151. Hyundai's recall number is 113.
Apr 1, 2013
Hyundai Motor Company (Hyundai) is recalling certain model year 2006-2009 Accent, model year 2007-2011 Azera, Sonata and Sante Fe,2006-2011 Tucson, 2009-2011 Elantra Touring, 2007-2010 Elantra, 2008-2011 Veracruz, 2009-2011 Genesis, 2010-2011 Genesis Coupe, 2007-2008 Entourage, and 2006-2008 Tiburon vehicles. Originally, in April 2013, Hyundai recalled 1,059,824 model year 2007-2009 Accent and Tucson, model year 2007-2010 Elantra, model year 2007-2011 Santa Fe, model year 2008-2009 Veracruz, model year 2010-2011 Genesis Coupe, and model year 2011 Sonata vehicles. In September 2013, Hyundai informed the agency that it was adding more vehicles to this campaign, representing an additional 652,512 units. The total number of vehicles being recalled is now 1,712,336. In the affected vehicles, the stop lamp switch may malfunction. A malfunctioning stop lamp switch may cause the brake lights to not illuminate when the brake pedal is depressed or may cause an inability to deactivate the cruise control by depressing the brake pedal. Additionally, a malfunctioning stop lamp switch may also result in intermittent operation of the push-button start feature, affect the operation of the brake transmission shift interlock feature, preventing the shifter from being moved out of the PARK position and cause the Electronic Stability Control (ESC) malfunction light to illuminate.
Consequence & remedy
Consequence: Failure to illuminate the stop lamps during braking or inability to disengage the cruise control could increase the risk of a crash. Additionally, when the ignition is in the 'ON' position, the transmission shifter may be able to be moved out of Park without first applying the brake. This may lead to unintentional movement of the car which may increase the risk of a crash.
Remedy: Hyundai will notify owners, and dealers will replace the stop lamp switch, free of charge. The safety recall began on April 22, 2013. Owners may contact Hyundai at 1-800-633-5151. Hyundai's recall campaign number is 110.
Apr 10, 2008
HYUNDAI IS RECALLING 393,308 MY 2006-2008 SONATA VEHICLES EQUIPPED WITH AN ADVANCED AIR BAG SYSTEM WHICH FEATURES AN OCCUPANT CLASSIFICATION SYSTEM (OCS) IN THE RIGHT FRONT SEAT. THE PURPOSE OF THE OCS IS TO DISABLE THE RIGHT PASSENGER SEAT FRONT AIR BAG WHEN IT DETECTS THE PRESENCE OF A CHILD RESTRAINT SYSTEM OR SMALL CHILD IN THE RIGHT FRONT SEAT. THE RIGHT FRONT AIR BAG IS DISABLED TO PREVENT INJURIES TO A CHILD THAT MAY RESULT FROM A RIGHT FRONT AIR BAG INFLATION DURING A CRASH.
Consequence & remedy
Consequence: MISCLASSIFICATION OF A SMALL STATURE ADULT AS A CHILD IN THE RIGHT FRONT PASSENGER SEAT MAY CAUSE THE RIGHT FRONT AIR BAG TO NOT INFLATE IN AN ACCIDENT THAT MERITS AIR BAG DEPLOYMENT AND MAY RESULT IN INJURY TO THE RIGHT FRONT OCCUPANT.
Remedy: DEALERS WILL VERIFY THAT THE OCS DOES NOT PROPERLY RECOGNIZE A PROPERLY SEATED ADULT OCCUPANT. AFTER VERIFICATION, DEALERS WILL REMOVE THE RIGHT FRONT SEAT CUSHION ASSEMBLY AND SHIP IT TO AN EVALUATION AND REPAIR FACILITY. THIS FACILITY WILL EVALUATE AND REPAIR OR REPROGRAM THE SEAT CUSHION AND OCS AS NECESSARY. THE RECALL IS EXPECTED TO BEGIN ON OR ABOUT MAY 26, 2008. OWNERS MAY CONTACT HYUNDAI AT 1-800-633-5151.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
4DP22003 · 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.
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.
PE14023 · Seat Belt Buckle Electrical Malfunction
Opened Jul 22, 2014 · Closed Dec 1, 2014
Status: closed (inferred from source dates) · Air Bags; Seat Belts; Seat Belts:front:buckle Assembly
On July 22, 2014 the Office of Defects Investigation (ODI) opened a preliminary evaluation to further analyze allegations of seat belt pretensioner malfunctions on model year (MY) 2006-2008 Hyundai Sonata vehicles.ODI received 131 unique reports alleging a failure within the seat belt pretensioner system, which was typically preceded by SRS light illumination.ODI requested more information from Hyundai in order to understand the nature of the failure and how the airbag deployment algorithm, the seat belt pretensioners, and/or the airbag function may be affected. In response to ODI?s information request (IR), Hyundai submitted 764 unique consumer and field reports and 19,847 warranty claims related to a failure in the front seat belt buckle assembly potentially causing a malfunction of the seat belt pretensioners.In it's response, Hyundai advised that if the resistance specifications for the seat belt buckle pretensioner circuit, located in the seat belt stalk, exceed the nominal range, a diagnostic trouble code will be set and the SRS warning indicator lamp will illuminate.The presence of this stored code will not affect the ability of the SRS Control Module (SRSCM) to detect a collision and command deployment of the pretensioners and airbags, if warranted.In fact, the wiring harness connector may be unplugged from the seat belt buckle pretensioner, and the signal to deploy the pretensioner will still be commanded and recorded.MY 2006-2008 Sonata?s utilize a dual pretensioner system by incorporating pretensioners into both the driver and front passenger seat belt retractor and the seat belt buckle assembly.The retractor pretensioner is located inside the B-pillar and winds (pretensions) the seat belt webbing back into the retractor housing during a collision, helping to remove seat belt slack and restrain the upper torso and hips.In contrast, the buckle pretensioner is located within the stalk of the seat belt assembly and acts to supplement lower limb protection.Both pretensioners are controlled by the SRSCM but utilize separate wiring and connectors.The seat belt retractor pretensioner circuitry and operation is independent of the seat belt buckle pretensioner connector and circuitry.Hyundai produced analysis indicating that increased resistance in the seat belt pretensioner which occurs in vehicle service does not result in a loss of buckle pretensioner.Hyundai further advised that in the unlikely event that a seat belt buckle pretensioner may not deploy due to increased resistance, the retractor pretensioner would still activate.Hyundai advised that the subject vehicles maintain their 5 STAR NHTSA safety rating using the retractor based pretensioner only.ODI notes that MY 2009-10 Sonatas reverted back to a single pretensioner system, and do not utilize seat belt buckle pretensioners. Hyundai advised its intention to initiate a warranty extension program to address concerns with the seat belt buckle prentensioner faults in MY 2006-2008 Hyundai Sonata vehicles.This action will extend the warranty coverage for this issue for 15 years or 250,000 miles, whichever occurs first.Given Hyundai's action and the minimal safety consequence this issue presents, further use of agency resources does not appear to be warranted.Accordingly, this investigation is closed.The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist.The agency will monitor the issue and reserves the right to take further action if warranted by the circumstances. The ODI complaints cited above can be reviewed at http://www-odi.nhtsa.dot.gov/owners/SearchNHTSAID, se
Additional source detail variants (3)
Air Bags
On July 22, 2014 the Office of Defects Investigation (ODI) opened a preliminary evaluation to further analyze allegations of seat belt pretensioner malfunctions on model year (MY) 2006-2008 Hyundai Sonata vehicles.ODI received 131 unique reports alleging a failure within the seat belt pretensioner system, which was typically preceded by SRS light illumination.ODI requested more information from Hyundai in order to understand the nature of the failure and how the airbag deployment algorithm, the seat belt pretensioners, and/or the airbag function may be affected. In response to ODI?s information request (IR), Hyundai submitted 764 unique consumer and field reports and 19,847 warranty claims related to a failure in the front seat belt buckle assembly potentially causing a malfunction of the seat belt pretensioners.In it's response, Hyundai advised that if the resistance specifications for the seat belt buckle pretensioner circuit, located in the seat belt stalk, exceed the nominal range, a diagnostic trouble code will be set and the SRS warning indicator lamp will illuminate.The presence of this stored code will not affect the ability of the SRS Control Module (SRSCM) to detect a collision and command deployment of the pretensioners and airbags, if warranted.In fact, the wiring harness connector may be unplugged from the seat belt buckle pretensioner, and the signal to deploy the pretensioner will still be commanded and recorded.MY 2006-2008 Sonata?s utilize a dual pretensioner system by incorporating pretensioners into both the driver and front passenger seat belt retractor and the seat belt buckle assembly.The retractor pretensioner is located inside the B-pillar and winds (pretensions) the seat belt webbing back into the retractor housing during a collision, helping to remove seat belt slack and restrain the upper torso and hips.In contrast, the buckle pretensioner is located within the stalk of the seat belt assembly and acts to supplement lower limb protection.Both pretensioners are controlled by the SRSCM but utilize separate wiring and connectors.The seat belt retractor pretensioner circuitry and operation is independent of the seat belt buckle pretensioner connector and circuitry.Hyundai produced analysis indicating that increased resistance in the seat belt pretensioner which occurs in vehicle service does not result in a loss of buckle pretensioner.Hyundai further advised that in the unlikely event that a seat belt buckle pretensioner may not deploy due to increased resistance, the retractor pretensioner would still activate.Hyundai advised that the subject vehicles maintain their 5 STAR NHTSA safety rating using the retractor based pretensioner only.ODI notes that MY 2009-10 Sonatas reverted back to a single pretensioner system, and do not utilize seat belt buckle pretensioners. Hyundai advised its intention to initiate a warranty extension program to address concerns with the seat belt buckle prentensioner faults in MY 2006-2008 Hyundai Sonata vehicles.This action will extend the warranty coverage for this issue for 15 years or 250,000 miles, whichever occurs first.Given Hyundai's action and the minimal safety consequence this issue presents, further use of agency resources does not appear to be warranted.Accordingly, this investigation is closed.The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist.The agency will monitor the issue and reserves the right to take further action if warranted by the circumstances. The ODI complaints cited above can be reviewed at http://www-odi.nhtsa.dot.gov/owners/SearchNHTSAID, se
Seat Belts:front:buckle Assembly
On July 22, 2014 the Office of Defects Investigation (ODI) opened a preliminary evaluation to further analyze allegations of seat belt pretensioner malfunctions on model year (MY) 2006-2008 Hyundai Sonata vehicles.ODI received 131 unique reports alleging a failure within the seat belt pretensioner system, which was typically preceded by SRS light illumination.ODI requested more information from Hyundai in order to understand the nature of the failure and how the airbag deployment algorithm, the seat belt pretensioners, and/or the airbag function may be affected. In response to ODI?s information request (IR), Hyundai submitted 764 unique consumer and field reports and 19,847 warranty claims related to a failure in the front seat belt buckle assembly potentially causing a malfunction of the seat belt pretensioners.In it's response, Hyundai advised that if the resistance specifications for the seat belt buckle pretensioner circuit, located in the seat belt stalk, exceed the nominal range, a diagnostic trouble code will be set and the SRS warning indicator lamp will illuminate.The presence of this stored code will not affect the ability of the SRS Control Module (SRSCM) to detect a collision and command deployment of the pretensioners and airbags, if warranted.In fact, the wiring harness connector may be unplugged from the seat belt buckle pretensioner, and the signal to deploy the pretensioner will still be commanded and recorded.MY 2006-2008 Sonata?s utilize a dual pretensioner system by incorporating pretensioners into both the driver and front passenger seat belt retractor and the seat belt buckle assembly.The retractor pretensioner is located inside the B-pillar and winds (pretensions) the seat belt webbing back into the retractor housing during a collision, helping to remove seat belt slack and restrain the upper torso and hips.In contrast, the buckle pretensioner is located within the stalk of the seat belt assembly and acts to supplement lower limb protection.Both pretensioners are controlled by the SRSCM but utilize separate wiring and connectors.The seat belt retractor pretensioner circuitry and operation is independent of the seat belt buckle pretensioner connector and circuitry.Hyundai produced analysis indicating that increased resistance in the seat belt pretensioner which occurs in vehicle service does not result in a loss of buckle pretensioner.Hyundai further advised that in the unlikely event that a seat belt buckle pretensioner may not deploy due to increased resistance, the retractor pretensioner would still activate.Hyundai advised that the subject vehicles maintain their 5 STAR NHTSA safety rating using the retractor based pretensioner only.ODI notes that MY 2009-10 Sonatas reverted back to a single pretensioner system, and do not utilize seat belt buckle pretensioners. Hyundai advised its intention to initiate a warranty extension program to address concerns with the seat belt buckle prentensioner faults in MY 2006-2008 Hyundai Sonata vehicles.This action will extend the warranty coverage for this issue for 15 years or 250,000 miles, whichever occurs first.Given Hyundai's action and the minimal safety consequence this issue presents, further use of agency resources does not appear to be warranted.Accordingly, this investigation is closed.The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist.The agency will monitor the issue and reserves the right to take further action if warranted by the circumstances. The ODI complaints cited above can be reviewed at http://www-odi.nhtsa.dot.gov/owners/SearchNHTSAID, se
Seat Belts
On July 22, 2014 the Office of Defects Investigation (ODI) opened a preliminary evaluation to further analyze allegations of seat belt pretensioner malfunctions on model year (MY) 2006-2008 Hyundai Sonata vehicles.ODI received 131 unique reports alleging a failure within the seat belt pretensioner system, which was typically preceded by SRS light illumination.ODI requested more information from Hyundai in order to understand the nature of the failure and how the airbag deployment algorithm, the seat belt pretensioners, and/or the airbag function may be affected. In response to ODI?s information request (IR), Hyundai submitted 764 unique consumer and field reports and 19,847 warranty claims related to a failure in the front seat belt buckle assembly potentially causing a malfunction of the seat belt pretensioners.In it's response, Hyundai advised that if the resistance specifications for the seat belt buckle pretensioner circuit, located in the seat belt stalk, exceed the nominal range, a diagnostic trouble code will be set and the SRS warning indicator lamp will illuminate.The presence of this stored code will not affect the ability of the SRS Control Module (SRSCM) to detect a collision and command deployment of the pretensioners and airbags, if warranted.In fact, the wiring harness connector may be unplugged from the seat belt buckle pretensioner, and the signal to deploy the pretensioner will still be commanded and recorded.MY 2006-2008 Sonata?s utilize a dual pretensioner system by incorporating pretensioners into both the driver and front passenger seat belt retractor and the seat belt buckle assembly.The retractor pretensioner is located inside the B-pillar and winds (pretensions) the seat belt webbing back into the retractor housing during a collision, helping to remove seat belt slack and restrain the upper torso and hips.In contrast, the buckle pretensioner is located within the stalk of the seat belt assembly and acts to supplement lower limb protection.Both pretensioners are controlled by the SRSCM but utilize separate wiring and connectors.The seat belt retractor pretensioner circuitry and operation is independent of the seat belt buckle pretensioner connector and circuitry.Hyundai produced analysis indicating that increased resistance in the seat belt pretensioner which occurs in vehicle service does not result in a loss of buckle pretensioner.Hyundai further advised that in the unlikely event that a seat belt buckle pretensioner may not deploy due to increased resistance, the retractor pretensioner would still activate.Hyundai advised that the subject vehicles maintain their 5 STAR NHTSA safety rating using the retractor based pretensioner only.ODI notes that MY 2009-10 Sonatas reverted back to a single pretensioner system, and do not utilize seat belt buckle pretensioners. Hyundai advised its intention to initiate a warranty extension program to address concerns with the seat belt buckle prentensioner faults in MY 2006-2008 Hyundai Sonata vehicles.This action will extend the warranty coverage for this issue for 15 years or 250,000 miles, whichever occurs first.Given Hyundai's action and the minimal safety consequence this issue presents, further use of agency resources does not appear to be warranted.Accordingly, this investigation is closed.The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist.The agency will monitor the issue and reserves the right to take further action if warranted by the circumstances. The ODI complaints cited above can be reviewed at http://www-odi.nhtsa.dot.gov/owners/SearchNHTSAID, se
PE13007 · Rear Control Arm Failure
Opened Mar 25, 2013 · Closed Aug 20, 2013
Status: closed (inferred from source dates) · Suspension:rear
In a letter dated August 9, 2013, Hyundai-Kia America Technical Center, Inc. (Hyundai) notified NHTSA that Hyundaiis conducting a safety recall (13V-354) involving approximately 239,000 vehicles involving model year (MY) 2006 through 2010 Hyundai Sonata vehicles (approximately 215,000)produced beginning on March 1, 2005 through January 21, 2010 and model year (MY) 2006 through 2011 Hyundai Azera vehicles (approximately 24,000) produced beginning on September 27, 2005 through November 22, 2010 that are registered in and operated or originally sold in the following 20 salt belt states and the District of Columbia: Connecticut, Delaware, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia, and Wisconsin.Hyundai will also inform dealers to inspect/repair vehicles that were previously registered in salt belt states but are currently registered elsewhere. Hyundai is conducting the recall to remedy a defect involving internal corrosion of the rear sub frame that may lead to separation of the rear upper/lower control arm(s) at their respective mounting points and/or separation of the axle from the transaxle where they meet.This could result in a loss of vehicle control and/or vehicle disablement which may increase the risk of a vehicle crash.In response to NHTSA?s Information Request (IR) letter, Hyundai stated the Azera vehicles utilizes the identical cross member and upper/lower rear control arm components as the subject (Sonata) vehicles.In analysis of both Vehicle Owner Questionnaire (VOQ) data submitted to the Office of Defects Investigation (ODI) and consumer complaint data submitted to Hyundai, ODI identified 19 non-duplicative reports alleging excessive corrosion of the rear sub frame. All of the complaint vehicles were either originally sold or registered at the time of the incident in one of the salt belt states.Of these 19 reports, 9 alleged either a suspension component separation or a fracture of the vehicle's rear cross member assembly.Similarly, ODI identified 8 warranty claims of rear sub frame replacement in data submitted by Hyundai due to excessive corrosion, all of which involved vehicles originally sold or operated in a salt belt state. Based on Hyundai's decision to conduct a safety recall, (13V-354) this investigation is closed.The VOQs cited above can be viewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification numbers: 10535115, 10534110, 10525976, 10524726, 10521520, 10508368, 10505463, 10490073, 10486752, 10486435, 1048354, 10473922, and 10437887.