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2008 Hyundai Santa Fe

Owner reports · Recalls · Investigations

More warning signs than most Santa Fe years

Owner complaints for the 2008 Hyundai Santa Fe are substantially higher than the model-year median of 212.5.

About this comparison →

When problems were reported

Mileage at the reported incident

461 reports with mileage · 80 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.

  • Fuel/propulsion System. Review the 215 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 74 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Air Bags. Review the 70 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

17 crash reports7 fire reports11 injury reports

What owners actually said

541 reports
Mileage unknown · Mar 16, 2017
Vehicle Speed Control

I WAS ON THE HIGH WAY I CHANGED LANES AND WHEN I DID I NEEDED TO ACCELERATE TO CHANGE LANES. AFTER CHANGING LANES I HAD TO HIT THE BREAKS TO SLOW DOWN, THE BREAK SEEMED TO ACT LIKE A GAS PEDAL. THE CAR WOULD NOT SLOW DOWN THE BREAKS WOULD NOT SLOW THE CAR IT ACCELERATED TO 80MPH. I WAS NOT HITTING THE ACCELERATOR BY MISTAKE. THE…

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I WAS ON THE HIGH WAY I CHANGED LANES AND WHEN I DID I NEEDED TO ACCELERATE TO CHANGE LANES. AFTER CHANGING LANES I HAD TO HIT THE BREAKS TO SLOW DOWN, THE BREAK SEEMED TO ACT LIKE A GAS PEDAL. THE CAR WOULD NOT SLOW DOWN THE BREAKS WOULD NOT SLOW THE CAR IT ACCELERATED TO 80MPH. I WAS NOT HITTING THE ACCELERATOR BY MISTAKE. THERE WAS NOTHING STUCK UNDER THE PEDALS. I BELIEVE IT WAS THE THROTTLE POSITIONING SENSOR,TPS. I LOOKED THIS UP ON THE INTERNET THERE ARE MANY INSTANCES OF THIS HAPPENING WITH THE SAME MAKE AND MODEL VEHICLE. THIS IS A SERIOUS SAFETY HAZARD I THOUGHT ME AND MY UNBORN CHILD WERE GOING TO DIE. I HAVE YET TO CONTACT MY DEALERSHIP HOWEVER AS FAR AS I AM AWARE THERE ARE NO RECALLS ON THIS VEHICLE. AND THERE SHOULD BE! THE CAR HAS 104800 MILES ROUGHLY. THE CAR ACCELERATED TO 80 MILES PER HOUR ON ITS OWN PRIOR TO THAT I WAS GOING ABOUT 55 MILES PER HOUR. IT ASKED FOR THIS INFORMATION ON THE NEXT PART OF THIS FORM HOWEVER IT WAS NOT ALLOWING ME TO TYPE IT.

NHTSA ODI #10966322

41,432 miles · Mar 14, 2017
EnginePower Train

TL* THE CONTACT OWNS A 2008 HYUNDAI SANTA FE. WHILE DRIVING VARIOUS SPEEDS, THE CONTACT HEARD A WHINING NOISE. ALSO, WHEN THE CONTACT SHIFTED FROM FIRST TO SECOND OR FROM THIRD TO FOURTH GEAR, THE TRANSMISSION SHOOK VIOLENTLY AND THE ENGINE WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS DIAGNOSED…

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TL* THE CONTACT OWNS A 2008 HYUNDAI SANTA FE. WHILE DRIVING VARIOUS SPEEDS, THE CONTACT HEARD A WHINING NOISE. ALSO, WHEN THE CONTACT SHIFTED FROM FIRST TO SECOND OR FROM THIRD TO FOURTH GEAR, THE TRANSMISSION SHOOK VIOLENTLY AND THE ENGINE WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE PURGE VALVE NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. AFTER THE REPAIR, THE FAILURE RECURRED SEVERAL TIMES. THE VEHICLE WAS TAKEN TO THE DEALER, BUT WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 41,432.

NHTSA ODI #10965825

94,000 miles · Mar 13, 2017
Unknown Or Other

WHEN THE VEHICLE IS FILLED UP WITH GAS THE FUEL GAUGE GOES TO ZERO AND THE ENGINE SERVICE LIGHT COMES ON AND THE CODES GENERATED ARE P2067, P0463 AND P0464. AT SOME POINT THE GAUGE BEGINS WORKING PROPERLY AGAIN BUT THE ACCURACY OF THE GAUGE IS IN QUESTION. THERE IS A SAFETY CONCERN SINCE THE VEHICLE COULD RUN OUT OF GAS AT A…

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WHEN THE VEHICLE IS FILLED UP WITH GAS THE FUEL GAUGE GOES TO ZERO AND THE ENGINE SERVICE LIGHT COMES ON AND THE CODES GENERATED ARE P2067, P0463 AND P0464. AT SOME POINT THE GAUGE BEGINS WORKING PROPERLY AGAIN BUT THE ACCURACY OF THE GAUGE IS IN QUESTION. THERE IS A SAFETY CONCERN SINCE THE VEHICLE COULD RUN OUT OF GAS AT ANY TIME LEAVING THE USER STRANDED IN BAD WEATHER OR IN A DANGEROUS TRAFFIC SITUATION. THIS PROBLEM IS NOT ISOLATED, JUDGING FROM SIMILAR COMPLAINTS ON THE INTERNET, IT APPEARS THAT THE PARTS USED FOR THE FUEL LEVEL INDICATION ARE UNRELIABLE AND A RECALL IS NEEDED TO RESOLVE THIS SAFETY ISSUE. THE PROBLEM OCCURS AT FILL UP AND DRIVING HAS NO EFFECT ON THIS ISSUE AND HAS BEEN HAPPENING TO MY VEHICLE OVER THE LAST COUPLE OF MONTHS BUT SEEMS TO BE GETTING WORSE AS TIME GOES ON. .

NHTSA ODI #10960401

96,000 miles · Mar 6, 2017
Fuel/propulsion System

ON A TRIP THIS PAST WEEKEND, I EXPERIENCED AN ALARMING SITUATION. I WAS DRIVING 65 MPH ON A HIGHWAY, WHEN THE FUEL GAUGE SUDDENLY REGISTERED EMPTY AFTER MY HAVING FILLED THE TANK ONLY 40 MILES PREVIOUSLY, AND THE CHECK ENGINE LIGHT CAME ON. I IMMEDIATELY EXITED THE HIGHWAY, STOPPED, AND CALLED THE DEALERSHIP AND TALKED TO A MECH…

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ON A TRIP THIS PAST WEEKEND, I EXPERIENCED AN ALARMING SITUATION. I WAS DRIVING 65 MPH ON A HIGHWAY, WHEN THE FUEL GAUGE SUDDENLY REGISTERED EMPTY AFTER MY HAVING FILLED THE TANK ONLY 40 MILES PREVIOUSLY, AND THE CHECK ENGINE LIGHT CAME ON. I IMMEDIATELY EXITED THE HIGHWAY, STOPPED, AND CALLED THE DEALERSHIP AND TALKED TO A MECHANIC, WHO SAID THE LIKELY EXPLANATION WAS A FAULTY FUEL SENSOR. WHILE WE WERE TALKING, THE NEEDLE BEGAN TO RISE AND FALL. WHEN I DETERMINED IT WAS NOT IMMEDIATELY DANGEROUS, I CONTINUED MY TRIP. THE GAUGE EVENTUALLY RETURNED TO NORMAL, BUT THE PROBLEM REAPPEARED THE NEXT TIME I FILLED UP; AGAIN, THE GAUGE EVENTUALLY BEGAN BEHAVING NORMALLY, AND THE CHECK ENGINE LIGHT WENT OUT. THIS MORNING I TOOK THE CAR TO THE DEALERSHIP, AND THEY CONFIRMED THE FAULTY FUEL SENSOR. COST TO REPAIR WAS $612 ' AN OUTRAGEOUS AMOUNT. I DECIDED TO DECLINE THE REPAIR AND JUST TRACK MY NEED FOR GAS FROM THE TRIPOMETER. STILL THIS COULD BE A DANGEROUS SITUATION IF THE GAUGE WERE SHOWING ADEQUATE FUEL BUT THE TANK WAS REALLY EMPTY. HYUNDAI SHOULD ISSUE A RECALL.

NHTSA ODI #10958857

75,000 miles · Mar 2, 2017
EngineUnknown Or OtherVehicle Speed ControlCrash

WHILE AT A STOP IN A CONSTRUCTION ZONE, MY FOOT WAS ON THE BRAKE, WHEN THE VEHICLE SUDDENLY ACCELERATED INTO THE VEHICLE IN FRONT OF ME. ALTHOUGH MY FOOT WAS PLANTED HARD ON THE BRAKE, THE ENGINE CONTINUED RACING, AND IT FELT LIKE MY CAR WAS GOING TO PUSH HIS CAR DOWN THE STREET! I SHIFTED INTO PARK AND TURNED THE CAR OFF. LUCK…

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WHILE AT A STOP IN A CONSTRUCTION ZONE, MY FOOT WAS ON THE BRAKE, WHEN THE VEHICLE SUDDENLY ACCELERATED INTO THE VEHICLE IN FRONT OF ME. ALTHOUGH MY FOOT WAS PLANTED HARD ON THE BRAKE, THE ENGINE CONTINUED RACING, AND IT FELT LIKE MY CAR WAS GOING TO PUSH HIS CAR DOWN THE STREET! I SHIFTED INTO PARK AND TURNED THE CAR OFF. LUCKILY THERE WAS ONLY $4,000 WORTH OF DAMAGE TO MY CAR, AND NO ONE WAS HURT. I REFUSED TO DRIVE IT, AND HAD IT TOWED TO THE DEALER. THEY SAID THE COMPUTER SHOWED NO MALFUNCTION, AND IT HAD TO BE DRIVER ERROR. THREE MONTHS LATER, IT DID IT AGAIN TO A LESSER DEGREE, IN AN OPEN AREA. I TURNED THE CAR OFF AGAIN, AND IT WAS FINE UNTIL YESTERDAY. IT HAS BEEN 4 MONTHS SINCE THAT LAST INCIDENT, BUT THIS ONE EVEN WAS WORSE THAN THE FIRST. ONLY THING IS, NOW I KNOW TO PUT ALL MY WEIGHT ON THE BRAKE, SHIFT TO NEUTRAL AND TURN THE CAR OFF AS FAST AS I CAN. THIS ONE FRIGHTENED ME SO BADLY, I WILL NOT DRIVE IT AGAIN. IT IS GOING TO SIT AT THE DEALER UNTIL THEY FIND OUT WHAT TO DO. I CANNOT IN GOOD CONSCIENCE DRIVE IT, SELL IT OR EVEN TRADE IT IN UNTIL I KNOW IT IS SAFE! EVERY TIME IT HAPPENED, THE CAR WAS ON A CITY STREET, STATIONARY, AND HEADING STRAIGHT. THE ENGINE REVS UP SO LOUD, IT SOUNDS LIKE AN AIRPLANE! YESTERDAY I COULD TELL THE PEOPLE IN THE CAR STOPPED NEXT TO ME HEARD IT AND LOOKED AT ME! I HAVE OWNED THIS SANTA FE SINCE IT WAS BRAND NEW, AND PEOPLE TELL ME IT LOOKS LIKE A NEW CAR. I KEEP UP WITH THE RECOMMENDED MAINTENANCE AND ALWAYS TAKE IT TO THE DEALER FOR SERVICE. UNTIL LAST JULY, IT HAS BEEN AN EXCELLENT CAR. THE ACCIDENT I HAD WITH IT WAS THE ONLY ACCIDENT I HAVE HAD IN 50 YEARS OF DRIVING! PLEASE GIVE ME SOME IDEAS ON WHAT TO TELL THE DEALER TO REPLACE, REPAIR OR DISCONNECT. THANKS FOR YOUR HELP!

NHTSA ODI #10958268

106,000 miles · Feb 27, 2017
Engine

WHILE ACCELERATING TO MERGE WITH TRAFFIC THE ENGINE STARTING MAKING A STRANGE NOISE. IT CONTINUED TO RUN AND THE NOISE DECREASED, AND SOMETIMES EVEN QUIT. THE NEXT DAY THE NOISE WAS BACK AND WHILE DRIVING DOWN A HILL THE ENGINE DIED AND MY WIFE WAS ABLE TO COAST ONTO AN EXIT RAMP. I WAS ABLE TO GET IT RESTARTED AND DROVE IT TO T…

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WHILE ACCELERATING TO MERGE WITH TRAFFIC THE ENGINE STARTING MAKING A STRANGE NOISE. IT CONTINUED TO RUN AND THE NOISE DECREASED, AND SOMETIMES EVEN QUIT. THE NEXT DAY THE NOISE WAS BACK AND WHILE DRIVING DOWN A HILL THE ENGINE DIED AND MY WIFE WAS ABLE TO COAST ONTO AN EXIT RAMP. I WAS ABLE TO GET IT RESTARTED AND DROVE IT TO THE DEALER. THE DEALER STATED WITH THE KNOCKING SOUND AND THEY FOUND METAL IN THE OIL IT WOULD NEED A NEW ENGINE. I COULD NOT AFFORD THE OVER $7,000 ESTIMATE SO I LOADED THE CAR ON A TRAILER AND TOOK IT HOME TO REPAIR MYSELF. WHEN I DISSEMBLED THE ENGINE I FOUND ONE OF THE CONNECTING ROD BEARINGS HAD SPUN AND ALL THE MAIN BEARINGS HAD SIGNIFICANT DAMAGE CONSISTENT WITH METAL DEBRIS ON THE BEARING SURFACE.

NHTSA ODI #10957158

45,000 miles · Feb 26, 2017
Fuel/propulsion System

FUEL SENSOR MALFUNCTION

NHTSA ODI #10957083

68,000 miles · Feb 25, 2017
Fuel/propulsion System

LOW FUEL LIGHT STAYS ON REGARDLESS OF FUEL LEVEL. THIS IS AN ONGOING COMPLAINT ON THIS MODEL AND NEEDS TO BE RECALLED FOR THE SAFETY OF DRIVERS. THE GAUGE HAS BEEN MOVING PERIODICALLY BUT NOW HAS STAYED AT A CONSTANT "EMPTY STATE" WITH THE WARNING LIGHT ON. LUCKILY WE WERE ABLE TO FILL THE TANK. WE NOW ARE GOING TO MOVE IT T…

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LOW FUEL LIGHT STAYS ON REGARDLESS OF FUEL LEVEL. THIS IS AN ONGOING COMPLAINT ON THIS MODEL AND NEEDS TO BE RECALLED FOR THE SAFETY OF DRIVERS. THE GAUGE HAS BEEN MOVING PERIODICALLY BUT NOW HAS STAYED AT A CONSTANT "EMPTY STATE" WITH THE WARNING LIGHT ON. LUCKILY WE WERE ABLE TO FILL THE TANK. WE NOW ARE GOING TO MOVE IT THE TANK FROM USING G THE TRIP MILES.

NHTSA ODI #10956975

115,000 miles · Feb 22, 2017
Fuel/propulsion System

FUEL GAUGE PROBLEM: WHEN FILLING THE CAR, THE FUEL GAUGE IN THE CAR WILL SHOW EMPTY, EMPTY LIGHT IS ON DESPITE FILLING THE CAR WITH PLENTY OF GAS. ADDITIONALLY, IN 2009 MY CAR STOPPED SUDDENLY WHILE WE WERE ON A BRIDGE IN 4 LANES OF TRAFFIC. THE FUEL TANK HAD TO BE PULLED AND REPLACED. NOW, WHEN I'M DRIVING(KNOWING THAT I…

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FUEL GAUGE PROBLEM: WHEN FILLING THE CAR, THE FUEL GAUGE IN THE CAR WILL SHOW EMPTY, EMPTY LIGHT IS ON DESPITE FILLING THE CAR WITH PLENTY OF GAS. ADDITIONALLY, IN 2009 MY CAR STOPPED SUDDENLY WHILE WE WERE ON A BRIDGE IN 4 LANES OF TRAFFIC. THE FUEL TANK HAD TO BE PULLED AND REPLACED. NOW, WHEN I'M DRIVING(KNOWING THAT I HAVE ENOUGH FUEL TO CONTINUE) THE FUEL GAUGE IS NOT REGISTERING PROPERLY AND WILL 'WAG' BETWEEN FULL AND EMPTY. DANGEROUS!

NHTSA ODI #10956325

Mileage unknown · Feb 14, 2017
Fuel/propulsion System

THE FUEL GAUGE DOES NOT READ CORRECTLY UNLESS THE TANK IS 100% FULL. EVEN THEN IT OCCASIONALLY WILL READ INCORRECTLY. WHEN FILLING THE TANK IT OCCASIONALLY SHUTS OFF AS IF FULL DESPITE NOT BEING FULL. THIS IS A MAJOR ISSUE BECAUSE IT IS IMPOSSIBLE TO TELL HOW MUCH GAS IS IN THE TANK AT ANY GIVEN TIME WHICH IS A SAFETY CONCERN…

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THE FUEL GAUGE DOES NOT READ CORRECTLY UNLESS THE TANK IS 100% FULL. EVEN THEN IT OCCASIONALLY WILL READ INCORRECTLY. WHEN FILLING THE TANK IT OCCASIONALLY SHUTS OFF AS IF FULL DESPITE NOT BEING FULL. THIS IS A MAJOR ISSUE BECAUSE IT IS IMPOSSIBLE TO TELL HOW MUCH GAS IS IN THE TANK AT ANY GIVEN TIME WHICH IS A SAFETY CONCERN WHEN DRIVING LONG DISTANCES.

NHTSA ODI #10954447

Official recalls

4

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.

12V354000 · Air Bags:frontal:sensor/control MODULE-INACTIVE

Jul 25, 2012

Hyundai is recalling certain model year 2007 through 2009 Santa Fe vehicles manufactured from April 19, 2006, through July 7, 2008. The occupant classification system (OCS) may need recalibration to accurately detect small statured adults.

Consequence & remedy

Consequence: Improper classification or detection may cause the front passenger airbag not to deploy in the event of a crash, increasing the risk of injury to the front passenger.

Remedy: Hyundai will notify owners, and dealers will update the classification software free of charge. The safety recall began on September 7, 2012. Owners may contact Hyundai at 1-800-633-5151.

11V472000 · Air Bags:frontal

Sep 9, 2011

HYUNDAI IS RECALLING CERTAIN MODEL YEAR 2007-2008 HYUNDAI VERACRUZ VEHICLES MANUFACTURED FROM DECEMBER 26, 2006, THROUGH MARCH 21, 2008, AND MODEL YEAR 2007-2008 HYUNDAI SANTA FE VEHICLES MANUFACTURED FROM APRIL 19, 2006 THROUGH MARCH 20, 2008. THE CLOCK SPRING CONTACT ASSEMBLY FOR THE DRIVER'S AIR BAG SUPPLEMENTAL RESTRAINT SYSTEM (SRS) MAY BECOME DAMAGED THROUGH USAGE OVER TIME. THE DRIVER'S AIR BAG ELECTRICAL CIRCUIT WILL EXPERIENCE A HIGH RESISTANCE CONDITION, POTENTIALLY CAUSING THE DRIVER'S AIR BAG TO NOT DEPLOY.

Consequence & remedy

Consequence: IF THE CLOCK SPRING DEVELOPS HIGH RESISTANCE, IN THE EVENT OF A CRASH, THE DRIVERS AIR BAG WILL NOT DEPLOY AND WILL NOT BE ABLE TO PROPERLY PROTECT THE DRIVER, INCREASING THE RISK OF INJURIES.

Remedy: HYUNDAI DEALERS WILL REPLACE THE VEHICLE'S DRIVER'S AIR BAG CLOCK SPRING CONTACT ASSEMBLY FREE OF CHARGE. THE SAFETY RECALL BEGAN IN NOVEMBER 2011. OWNERS MAY CONTACT HYUNDAI CUSTOMER CONNECT CENTER AT 1-800-633-5151.

08V272000 · Equipment:other:labels

Jun 19, 2008

HYUNDAI IS RECALLING 88,943 MY 2007-2008 HYUNDAI SANTA FE VEHICLES EQUIPPED WITH P235/60R18 TIRES. THESE VEHICLES FAIL TO COMPLY WITH THE LABELING REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 110 "TIRE SELECTION AND RIMS FOR MOTOR VEHICLES." THE BLACK CERTIFICATION LABEL AFFIXED TO THE DRIVER'S SIDE CENTER PILLAR, INCORRECTLY LISTS THE GROSS AXLE WEIGHT RATINGS (GAWR).

Consequence & remedy

Consequence: OVERLOADING YOUR VEHICLE MAY ADVERSELY AFFECT HANDLING AND BRAKING AND MAY CAUSE TIRE DAMAGE, RESULTING IN TIRE FAILURE AND A CRASH WITHOUT WARNING.

Remedy: HYUNDAI WILL MAIL CORRECTED CERTIFICATION LABELS ALONG WITH THE INSTRUCTIONS TO THE AFFECTED OWNERS. THE CUSTOMER WILL HAVE THE OPTION FOR DEALERS TO INSTALL THE LABEL FREE OF CHARGE. THE RECALL BEGAN ON AUGUST 5, 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

1

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.