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2008 Hyundai Sonata

Owner reports · Recalls · Investigations

More warning signs than most Sonata years

Owner complaints for the 2008 Hyundai Sonata are substantially higher than the model-year median of 161.

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When problems were reported

Mileage at the reported incident

343 reports with mileage · 82 unknown

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Air Bags. Review the 137 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Visibility. Review the 67 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine. Review the 48 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

19 crash reports11 fire reports11 injury reports

Air Bags complaints

137 reports
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Mileage unknown · Oct 28, 2009
Air BagsCrashInjury

I WAS INVOLVED IN A FRONT END COLLISION WITH A 30FT MOUND/RAILROAD TRACK. MY AIRBAGS DID NOT DEPLOY. THERE WAS A SIGNIFICANT AMOUNT OF DAMAGE, ENOUGH TO DEEM THE CAR A "TOTAL LOSS", YET NONE OF THE AIRBAGS DEPLOYED, I SUFFERED PHYSICAL INJURIES TO TOP HALF OF BY BODY BY LITERALLY SLAMMING INTO THE STEERING WHEEL AND WINDSHIELD. …

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I WAS INVOLVED IN A FRONT END COLLISION WITH A 30FT MOUND/RAILROAD TRACK. MY AIRBAGS DID NOT DEPLOY. THERE WAS A SIGNIFICANT AMOUNT OF DAMAGE, ENOUGH TO DEEM THE CAR A "TOTAL LOSS", YET NONE OF THE AIRBAGS DEPLOYED, I SUFFERED PHYSICAL INJURIES TO TOP HALF OF BY BODY BY LITERALLY SLAMMING INTO THE STEERING WHEEL AND WINDSHIELD. HAD MY AIR BAGS DEPLOYED THERE WOULD HAVE BEEN MINIMAL INJURIES TO MY BODY. *TR

NHTSA ODI #10290185

8,000 miles · Sep 30, 2009
Air Bags

TL*THE CONTACT OWNS A 2008 HYUNDAI SONATA. THE CONTACT STATED THAT HE TOOK HIS VEHICLE TO THE DEALER FOR INSPECTION BECAUSE HE RECEIVED RECALL NOTICE # 08V161000 (AIR BAGS). UPON INSPECTION THE TECHNICIAN DID NOT MAKE REPAIRS, BECAUSE HE COULD NOT IDENTIFY A FAILURE. HOWEVER AFTER INSPECTION HE NOTICED THAT THE PASSENGER FRONT …

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TL*THE CONTACT OWNS A 2008 HYUNDAI SONATA. THE CONTACT STATED THAT HE TOOK HIS VEHICLE TO THE DEALER FOR INSPECTION BECAUSE HE RECEIVED RECALL NOTICE # 08V161000 (AIR BAGS). UPON INSPECTION THE TECHNICIAN DID NOT MAKE REPAIRS, BECAUSE HE COULD NOT IDENTIFY A FAILURE. HOWEVER AFTER INSPECTION HE NOTICED THAT THE PASSENGER FRONT AIR BAG SENSORS MISCLASSIFIED AN ADULT AS A CHILD. AS A CONSEQUENCE IN A SITUATION THAT WARRANTS, THE AIR BAGS MAY FAIL TO DEPLOY. THE DEALER WAS RECONTACTED, BUT NO ASSISTANCE WAS PROVIDED. THE FAILURE MILEAGE WAS 8000. THE CURRENT MILEAGE WAS 10,000.

NHTSA ODI #10285803

200 miles · Sep 21, 2009
Air Bags

TL*THE CONTACT OWNS A 2008 HYUNDAI SONATA. WHEN SOMEONE WAS SEATED IN THE PASSENGER SEAT THE AIR BAG LIGHT ILLUMINATED WHICH ALSO INDICATED THAT THE AIR BAGS WOULD NOT DEPLOY IN THE EVENT OF A CRASH. THE DEALER STATED THAT THERE WAS AN INTERNAL FAILURE WITHIN THE AIR BAG. THE SEATS WERE TAKEN OUT OF THE VEHICLE AND REPROGRAMMED …

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TL*THE CONTACT OWNS A 2008 HYUNDAI SONATA. WHEN SOMEONE WAS SEATED IN THE PASSENGER SEAT THE AIR BAG LIGHT ILLUMINATED WHICH ALSO INDICATED THAT THE AIR BAGS WOULD NOT DEPLOY IN THE EVENT OF A CRASH. THE DEALER STATED THAT THERE WAS AN INTERNAL FAILURE WITHIN THE AIR BAG. THE SEATS WERE TAKEN OUT OF THE VEHICLE AND REPROGRAMMED ON TWO OCCASIONS WITH NO CHANGE IN THE FAILURE. THE CONTACT WAS ALSO INFORMED THAT IT WOULD BE COSTLY TO REPLACE THE SEAT OR THE AIR BAG SENSORS. THE CONTACT NOTIFIED THE MANUFACTURER AND FILED MULTIPLE CASES EACH TIME THE VEHICLE WAS REPAIRED. THE CONTACT IS AWARE OF THE SAFETY RISK IF THE AIR BAGS FAIL TO DEPLOY IN A CRASH AND THE POSSIBILITY THAT A SERIOUS INJURY COULD OCCUR. THE CONTACT IS ALSO CONCERNED THAT ATTEMPTS TO REPAIR THE VEHICLE HAVE BEEN UNSUCCESSFUL. THE FAILURE MILEAGE WAS 200 AND THE CURRENT MILEAGE WAS 20,000.

NHTSA ODI #10284718

1,000 miles · Aug 23, 2009
Air Bags

IT WAS PURCHASED MARCH 2008 FROM DAVE MENGAY IN RAINBOW CITY, ALABAMA. WITHIN WEEKS OF OWNING THIS VEHICLE, I NOTICED THAT THE PASSENGER AIRBAG OFF LIGHT WAS NOT GOING OFF WHEN ADULTS WERE SEATED. PER THE MANUAL, THIS LIGHT SHOULD ONLY BE ON WHEN PASSENGERS LESS THAN FIFTY POUNDS WERE SEATED IN MY FRONT PASSENGER SEAT. FOR MY…

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IT WAS PURCHASED MARCH 2008 FROM DAVE MENGAY IN RAINBOW CITY, ALABAMA. WITHIN WEEKS OF OWNING THIS VEHICLE, I NOTICED THAT THE PASSENGER AIRBAG OFF LIGHT WAS NOT GOING OFF WHEN ADULTS WERE SEATED. PER THE MANUAL, THIS LIGHT SHOULD ONLY BE ON WHEN PASSENGERS LESS THAN FIFTY POUNDS WERE SEATED IN MY FRONT PASSENGER SEAT. FOR MY FIRST OIL CHANGE IN JUNE 2008, I TOOK MY CAR TO THE HYUNDAI DEALER IN HUNTSVILLE, ALABAMA TO HAVE SERVICED AND TO CHECK THE PROBLEM WITH THE PASSENGER AIRBAG LIGHT. AT THE TIME, THE SERVICE DEPARTMENT WAS NOT ABLE TO DUPLICATE THE ISSUES. I LATER CALLED BACK, AND WAS TOLD THAT THEY ARE AWARE OF THE ISSUE AND THAT MY SEAT MAY NEED TO BE SERVICED IN CALIFORNIA. AFTER MY MOVE TO ILLINOIS, I TOOK MY CAR TO BE SERVICED FOR THE PASSENGER AIRBAG LIGHT. AT THIS TIME, I HAVE HAD MY CAR SERVICED FOR THIS ISSUE AT LEAST EIGHT TIMES. THIS IS TRULY RIDICULOUS. THE AIRBAG IS ONE OF THE SAFETY FEATURES THAT HAVE DECREASED ACCIDENT RELATED FATALITIES. IN THE EVENT OF A CRASH, MY PASSENGER MAY NOT BE PROTECTED DUE TO THE ISSUE. I HAVE ATTEMPTED TO FOLLOW UP WITH MY LOCAL HYUNDAI DEALER MANY TIMES WITH THIS ISSUE. JUST RECENTLY, A SERVICE REPRESENTATIVE, TOLD ME THAT SHE WAS WORKING WITH THE HYUNDAI CUSTOMER SERVICE AND THEY WANTED TO TRY ONE LAST OPTION BEFORE SEEING WHAT ELSE COULD BE DONE. ON THE SAME DAY OF MY LAST SERVICE APPOINTMENT, THE PROBLEM REAPPEARED. I CONTACTED HER A FEW DAYS LATER. DESPITE HER PROMISES OF CALL BACKS, I HAVE NEVER RECEIVED ONE. I CALLED LAST SATURDAY, AUGUST 15, 2009 TO INFORM THE MANAGERIAL STAFF THAT I WAS ABOUT TO WRITE TO CONSUMER AFFAIRS AND WANTED TO GIVE THEM ONE MORE ATTEMPT TO HELP ME. THE SALES MANAGER, PROMISED TO CALL ME BACK ON MONDAY AFTER 2 PM. NOT ONLY DID HE NOT CALL ME BACK, BUT WHEN I CALLED HIM ON THE MONDAY, HE TOLD ME THAT HE WAS WAITING ON A CALL BACK AND WOULD CALL ME BACK BY 9 PM WHICH HE DID NOT. NOW MY ESC LIGHT IS COMING ON WHILE I AM DRIVING. I HAVE HAD IT SERVICED FOR THIS BUT IT STILL DOES IT. *TR

NHTSA ODI #10281466

7,000 miles · Jul 27, 2009
Air Bags

44 TIMES THE PASSENGER AIR BAG LIGHT HAS STAYED ON WITH A PASSENGER IN THE SEAT(6-17-08/7-22-09) HYUNDAI CO. HAS REPAIRED ATTEMPTED TO REPAIR THE PROBLEM AUG, 08, BUT THE PROBLEM STILL EXISTS. I MUST TURN THE ENGINE OFF AND RESTART THE VEH.. TO CLEAR THE PROBLEM. VERY CONCERNED FOR SAFETY REASONS. *TR

NHTSA ODI #10278499

21,951 miles · Jul 26, 2009
Air BagsSuspension

WE HAVE A 2008 HYUNDAI SONATA AND WE HAVE HAD THIS VEHICLE IN THE SHOP 5 TIMES FOR THE SAME DEFECTS. THE PASSENGER AIR BAG LIGHT UNLESS YOU SIT COMPLETELY STILL IN THE SEAT IT WILL NOT COME ON. THEY SUPPOSEDLY FIXED IT THE LAST TIME IT WAS IN BUT SHORTLY AFTER WE GOT IT BACK IT STARTED DOING IT AGAIN, ANOTHER PROBLEM IS THERE IS…

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WE HAVE A 2008 HYUNDAI SONATA AND WE HAVE HAD THIS VEHICLE IN THE SHOP 5 TIMES FOR THE SAME DEFECTS. THE PASSENGER AIR BAG LIGHT UNLESS YOU SIT COMPLETELY STILL IN THE SEAT IT WILL NOT COME ON. THEY SUPPOSEDLY FIXED IT THE LAST TIME IT WAS IN BUT SHORTLY AFTER WE GOT IT BACK IT STARTED DOING IT AGAIN, ANOTHER PROBLEM IS THERE IS A NOISE UNDER THE FRONT END AND EVERY TIME IT HITS BUMPS IT SOUNDS LIKE SOMETHING IS BROKE. *TR

NHTSA ODI #10278328

Mileage unknown · Apr 17, 2009
Air Bags

THE AIR BAG SYSTEM STAYS OFF WHEN MY WIFE (120 POUNDS) IS SEATED IN THE FRONT PASSENGER SEAT ABOUT 50% OF THE TIME. WHEN FIRST TAKEN TO A DEALERSHIP WITH MY WIFE, THEY REFUSED TO DO ANYTHING BECAUSE THE WARNING LIGHT DID NOT GO ON. THE PROBLEM STILL CONTINUED. ANOTHER DEALER SENT THE SEAT TO CALIFORNIA TO BE REPAIRED IN MARCH 2…

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THE AIR BAG SYSTEM STAYS OFF WHEN MY WIFE (120 POUNDS) IS SEATED IN THE FRONT PASSENGER SEAT ABOUT 50% OF THE TIME. WHEN FIRST TAKEN TO A DEALERSHIP WITH MY WIFE, THEY REFUSED TO DO ANYTHING BECAUSE THE WARNING LIGHT DID NOT GO ON. THE PROBLEM STILL CONTINUED. ANOTHER DEALER SENT THE SEAT TO CALIFORNIA TO BE REPAIRED IN MARCH 2009. THE PROBLEM STILL PERSISTS. NOW, HYUNDAIUSA WANTS ME TO RETURN TO THE DEALERSHIP AGAIN WITH MY WIFE OR SOMEONE OF SIMILAR STATURE. THIS TIME, A HYUNDAI REGIONAL REPRESENTATIVE WILL BE PRESENT. HYUNDAI USA CONSUMER AFFAIRS WOULD NOT GIVE ANY MORE INFORMATION ON WHAT THE PROCESS IS IF THE PROBLEM PERSISTS THEREAFTER NOR WOULD THEY GIVE ME THE NAME AND/OR CONTACT INFORMATION OF THE ANYONE TO SPEAK TO. THEY SAID THEY WOULD FORWARD ON MY CASE AND I MAY OR MAY NOT BE CONTACTED BY SOMEONE AT HYUNDAI USA WITH ANSWERS TO MY QUESTIONS. OTHERWISE, I JUST HAVE TO WAIT TO HEAR WHAT THE HYUNDAI REP HAS TO SAY WHEN MY APPOINTMENT IS FINALLY SCHEDULED. CURRENTLY, WAITING TO HEAR FROM THE DEALER. *TR

NHTSA ODI #10265743

Mileage unknown · Mar 31, 2009
Air Bags

TL*THE CONTACT OWNS A 2008 HYUNDAI SONATA. IN NOVEMBER OF 2008, THE VEHICLE WAS REPAIRED ACCORDING TO NHTSA CAMPAIGN ID NUMBER 08V161000 (AIR BAGS). AFTER A COUPLE OF DAYS, THE SENSOR WAS TURNING THE AIR BAG OFF WHENEVER AN OCCUPANT WOULD SIT IN THE PASSENGER SEAT. THE MANUFACTURER COULD NOT LOCATE THE FAILURE OR PROVIDE ASSI…

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TL*THE CONTACT OWNS A 2008 HYUNDAI SONATA. IN NOVEMBER OF 2008, THE VEHICLE WAS REPAIRED ACCORDING TO NHTSA CAMPAIGN ID NUMBER 08V161000 (AIR BAGS). AFTER A COUPLE OF DAYS, THE SENSOR WAS TURNING THE AIR BAG OFF WHENEVER AN OCCUPANT WOULD SIT IN THE PASSENGER SEAT. THE MANUFACTURER COULD NOT LOCATE THE FAILURE OR PROVIDE ASSISTANCE. THE CONTACT FEELS THAT THIS IS A MAJOR SAFETY ISSUE BECAUSE WHEN HIS CHILDREN ARE SEATED IN THE VEHICLE, THE SENSOR SHUTS OFF THE AIR BAG. THIS COULD BE FATAL IN THE EVENT OF A CRASH. THE CURRENT MILEAGE WAS 24,000 AND THE FAILURE MILEAGE WAS UNKNOWN.

NHTSA ODI #10263735

10 miles · Dec 3, 2008
Air Bags

FRONT PASSENGER SIDE AIRBAG REMAIN DEACTIVATED (SIGN SHOWS THAT), SEVERAL TIMES, WHEN MY WIFE (120LBS, 5'3) SITS ON IT. HAVE BEEN TO DEALERSHIP ONCE AND THEY SENT THE SEAT TO HYUNDAI SERVICE CENTER FOR RECTIFICATION, BUT THE PROBLEM IS STILL THERE. THIS CAN BE A SERIOUS SITUATION IN CASE OF CRASH, AS HAVING PROPERLY WORKING AIR…

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FRONT PASSENGER SIDE AIRBAG REMAIN DEACTIVATED (SIGN SHOWS THAT), SEVERAL TIMES, WHEN MY WIFE (120LBS, 5'3) SITS ON IT. HAVE BEEN TO DEALERSHIP ONCE AND THEY SENT THE SEAT TO HYUNDAI SERVICE CENTER FOR RECTIFICATION, BUT THE PROBLEM IS STILL THERE. THIS CAN BE A SERIOUS SITUATION IN CASE OF CRASH, AS HAVING PROPERLY WORKING AIRBAG IS ESSENTIAL FOR PASSENGER SAFETY. *TR

NHTSA ODI #10250645

1,200 miles · Nov 19, 2008
Air Bags

TL*THE CONTACT OWNS A 2008 HYUNDAI SONATA. EACH TIME A 260 LBS. OCCUPANT IS SEATED IN THE FRONT PASSENGER SEAT OF THE VEHICLE, THE AIR BAG INDICATOR ILLUMINATES INTERMITTENTLY. THIS INDICATES THAT THE AIR BAG SYSTEM WAS DEACTIVATED. THE VEHICLE WAS TAKEN TO THE DEALER APPROXIMATELY SEVEN TIMES TO DETERMINE THE CAUSE OF THE FA…

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TL*THE CONTACT OWNS A 2008 HYUNDAI SONATA. EACH TIME A 260 LBS. OCCUPANT IS SEATED IN THE FRONT PASSENGER SEAT OF THE VEHICLE, THE AIR BAG INDICATOR ILLUMINATES INTERMITTENTLY. THIS INDICATES THAT THE AIR BAG SYSTEM WAS DEACTIVATED. THE VEHICLE WAS TAKEN TO THE DEALER APPROXIMATELY SEVEN TIMES TO DETERMINE THE CAUSE OF THE FAILURE; HOWEVER, THEY WERE UNSUCCESSFUL. THERE IS A RECALL REGARDING THIS ISSUE, BUT THE FAILURE HAS STILL NOT BEEN RESOLVED. THE CURRENT MILEAGE WAS 10,351 AND FAILURE MILEAGE WAS 1,200.

NHTSA ODI #10249281

Official recalls

3

13V354000 · Suspension:rear

Aug 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.

13V113000 · Exterior Lighting:brake Lights:switch

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.

08V161000 · Air Bags

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

4

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.

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.