CHECK ENGINE LIGHT CODE READS INTAKE VALVE CIRCUIT HAS LOW VOLTAGE. NOTICED REDUCED GAS MILEAGE ECONOMY AND POOR ENGINE PERFORMANCE.
2009 Hyundai Sonata
Owner reports · Recalls · Investigations
More warning signs than most Sonata years
Owner complaints for the 2009 Hyundai Sonata are substantially higher than the model-year median of 161.
About this comparison →How this year compares
Owner complaints by model year
Compare all Sonata years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
375 reports with mileage · 85 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.
- Service Brakes. Review the 64 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 61 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Engine. Review the 56 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
Electrical System complaints
61 reportsFRONT ENGINE VALVE COVER GASKET LEAKED OIL ONTO ALTERNATOR CAUSING IT TO BECOME DAMAGED, WHICH LED TO POOR TRANSMISSION SHIFTING AND THEN COMPLETE LOSS OF ALL ELECTRICAL POWER.
FRONT ENGINE VALVE COVER GASKET LEAKED OIL ONTO ALTERNATOR CAUSING IT TO BECOME DAMAGED, WHICH LED TO POOR TRANSMISSION SHIFTING AND THEN COMPLETE LOSS OF ALL ELECTRICAL POWER.
CAR STARTED AS USUAL AND I WAS DRIVING ON A CITY STREET GETTING READY TO GET ON THE HIGHWAY. ALL OF A SUDDEN THE CAR WOULD ONLY GO ABOUT 20 MPH AND REACH 1000 RPM. IT DIED SHORTLY THEREAFTER ON THE HIGHWAY FRONTAGE ROAD. ALL OF THE LIGHTS FOR ABS, BRAKES, CHECK ENGINE ETC. CAME ON BUT THE EMERGENCY FLASHERS WOULD NOT WORK SO I H…
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CAR STARTED AS USUAL AND I WAS DRIVING ON A CITY STREET GETTING READY TO GET ON THE HIGHWAY. ALL OF A SUDDEN THE CAR WOULD ONLY GO ABOUT 20 MPH AND REACH 1000 RPM. IT DIED SHORTLY THEREAFTER ON THE HIGHWAY FRONTAGE ROAD. ALL OF THE LIGHTS FOR ABS, BRAKES, CHECK ENGINE ETC. CAME ON BUT THE EMERGENCY FLASHERS WOULD NOT WORK SO I HAD TO KEEP PUMPING THE BRAKES SO NOBODY WOULD RUN INTO THE BACK END OF MY CAR. IT WOULD NOT RESTART SO I HAD TO HAVE IT TOWED TO THE DEALER. DEALER STATED VALVE COVER GASKET HAD LEAKED OIL ONTO THE ALTERNATOR AND RUINED IT. THAT IN TURN RUINED THE BATTERY. CAR WAS REPAIRED FOR $1400 INCLUDING THE TOW AND A RENTAL CAR. AFTER LOOKING AT HYUNDAI RECALLS, I NOTICED THE ONE FOR THE 2009 VERA CRUZ (NHTSA# 14V415000) IN WHICH 61,122 UNITS WERE RECALLED FOR THIS SAME PROBLEM. IN RESEARCHING THE AFFECTED VALVE COVER GASKET, I FOUND THE SAME ONE WAS USED ON MY 3.3L ENGINE THAT WAS LISTED AS DEFECTIVE ON THE 3.8L VERA CRUZ ENGINE. IF THAT PART WAS DEFECTIVE ON THAT VEHICLE, WHY WAS THE SCOPE OF THIS RECALL NOT EXTENDED TO COVER ALL POSSIBLE VEHICLES THAT COULD BE AFFECTED? I WOULD LIKE THE COST OF REPAIRS REFUNDED TO ME SINCE HYUNDAI OBVIOUSLY KNEW THIS PART WAS DEFECTIVE BUT DIDN'T ISSUE A RECALL TO COVER ALL AFFECTED VEHICLES. *TR
ON 10/08/2009 MY 209 HYUNDAI SONATA WENT INTO AN UNINTENDED ACCELERATION. AS SOON AS I PUT THE CAR INTO DRIVE IT BEGAN TO ACCELERATE. THE BRAKES DID NOT WORK AND I WAS ABLE TO SHIFT INTO NEUTRAL. I WAS ON A NARROW DIRT ROAD WITH LITTLE LIMITED OPTIONS AS TO WHERE TO STEER THE VEHICLE. I MISSED A BOULDER, GARAGE, AND TREE BEF…
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ON 10/08/2009 MY 209 HYUNDAI SONATA WENT INTO AN UNINTENDED ACCELERATION. AS SOON AS I PUT THE CAR INTO DRIVE IT BEGAN TO ACCELERATE. THE BRAKES DID NOT WORK AND I WAS ABLE TO SHIFT INTO NEUTRAL. I WAS ON A NARROW DIRT ROAD WITH LITTLE LIMITED OPTIONS AS TO WHERE TO STEER THE VEHICLE. I MISSED A BOULDER, GARAGE, AND TREE BEFORE HITTING THE SIDE OF A HOUSE. THE AMBULANCE WAS CALLED AND I WAS TRANSPORTED TO THE LOCAL EMERGENCY ROOM. I HAD A CONCUSSION, FRACTURED KNEE ALONG WITH A NUMBER OF BRUISES AND ABRASIONS. THE EMTS TOLD ME HOW LUCKY IF WAS SINCE THE AIR BAGS DID NOT DEPLOY.. AN INTERNET SEARCH, INCLUDING YOUR WEBSITE, NOTES THESE PROBLEMS GOING BACK SEVERAL YEARS. TOYOTA HAD THE SAME PROBLEM AND DID A RECALL. MY INJURIES WILL EXCEED THE LIMIT OF MY INSURANCE AND I WILL HAVE TO PURCHASE A CAR. I KNOW HOW LUCKY I WAS TO WALK AWAY. I AM SURE OTHERS HAD MORE SERIOUS INJURIES AND HIGHER EXPENSES. WHAT DOES IT TAKE TO FORCE HYUNDAI TO DO THE RIGHT THING?
THE POWER SIDE WINDOW BUTTON IS FLOPPY IT JUST STAYS DOWN AND YOU HAVE TO PULL IT BACK UP MANUALLY ITS LIKE THE SPRING IS BROKEN. THE HVAC MOTOR BLOWER DOESN'T ALWAYS BLOW I HAVE TO MESS WITH THE KNOB TO GET THE HEAT OR AC TO WORK.
TAMARA RECALL. MY SEAT WON'T MOVE BACK OR FORWARD . ELECTRICAL SWITCH.
BOUGHT CAR NEW , AT 30,000 MILE STARTER REPLACED [ COULD NOT TURN KEY IN IGNITION] . THAT WAS COVERED BY WARRANTY . AT 63,000 MILES IGNTION WENT [ AGAIN UNABLE TO TURN KEY TO START CAR ] AND I WAS STRANDED WITH VEHICLE.--THIS TIME APPROX $650.00 I FOR REPAIRS . I HAVE HEARD /READ THERE IS A HISTORY FO THIS KIND OF PROBLEM . HYUN…
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BOUGHT CAR NEW , AT 30,000 MILE STARTER REPLACED [ COULD NOT TURN KEY IN IGNITION] . THAT WAS COVERED BY WARRANTY . AT 63,000 MILES IGNTION WENT [ AGAIN UNABLE TO TURN KEY TO START CAR ] AND I WAS STRANDED WITH VEHICLE.--THIS TIME APPROX $650.00 I FOR REPAIRS . I HAVE HEARD /READ THERE IS A HISTORY FO THIS KIND OF PROBLEM . HYUNDAI DID GIVE ME A $200.CREDIT TOWARD NEXT REPAIR . WITH MY AGE AND BEING WIDOWED I REALLY WOULD LIKE TO FEEL CONFIDENT THAT THIS CAR IS GOING TO BE SAFE FOR ME . I JUST DON'T THINK WITH THE AMOUNT OF MILEAGE THAT THESE PROBLEMS SHOULD HAVE EXISTED . ARE THEY USING INFERIOR PARTS ??
ESC LIGHT COMES ON INTERMITTENTLY COMMON PROBLEM WITH HYUNDAI. PREVIOUS RECALLS AND CURRENT RECALL ON SOME MODELS. I AM FILING A COMPLAINTS WITH NATIONAL SAFETY SO THAT A RECALL CAN BE EXTENDED TO MORE VEHICLES. HYUNDAI IS UNWILLING TO FIX THESE ISSUES WITHOUT A RECALL. WANT PEOPLE TO PAY OUT OF POCKET FOR SOMETHING THAT IS …
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ESC LIGHT COMES ON INTERMITTENTLY COMMON PROBLEM WITH HYUNDAI. PREVIOUS RECALLS AND CURRENT RECALL ON SOME MODELS. I AM FILING A COMPLAINTS WITH NATIONAL SAFETY SO THAT A RECALL CAN BE EXTENDED TO MORE VEHICLES. HYUNDAI IS UNWILLING TO FIX THESE ISSUES WITHOUT A RECALL. WANT PEOPLE TO PAY OUT OF POCKET FOR SOMETHING THAT IS A MANUFACTURING DEFECT.
WHILE DRIIVING WITH THE SEAT BELT FASTENED....THE SEAT BELT LIGHT GOES OFF AND WHEN THE BRAKE IS APPLIED...IT DOESNT ALWAYS STOP....OR CATCH THE LIGHT GOES OFF WHETHER THE SEAT BELT IS FASTENED OR NOT. TLOW BEAM HEAD LIGHT ON DRIVERS SIDE GOES ON AND OFF AT TIMES...HAD CHECKED AND THE REPLY WAS IT MIGHT BE AN ELECTRICAL ISSU…
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WHILE DRIIVING WITH THE SEAT BELT FASTENED....THE SEAT BELT LIGHT GOES OFF AND WHEN THE BRAKE IS APPLIED...IT DOESNT ALWAYS STOP....OR CATCH THE LIGHT GOES OFF WHETHER THE SEAT BELT IS FASTENED OR NOT. TLOW BEAM HEAD LIGHT ON DRIVERS SIDE GOES ON AND OFF AT TIMES...HAD CHECKED AND THE REPLY WAS IT MIGHT BE AN ELECTRICAL ISSUE.
Official recalls
213V354000 · 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.
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
3DP22003 · 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.
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.
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