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2015 Hyundai Sonata

Owner reports · Recalls · Investigations

More warning signs than most Sonata years

Owner complaints for the 2015 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

597 reports with mileage · 547 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.

  • Engine. Review the 623 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 167 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Power Train. Review the 134 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

34 crash reports48 fire reports24 injury reports

Engine complaints

623 reports
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Mileage unknown · May 23, 2021
Engine

My motor to my vehicle all of a sudden started making noises as I was on my way home and dropped speed and didn’t accelerate past 55MPH, my car started stuttering every time I hit the gas and it won’t go past 2000RPM and my check engine light started blinking at me. The safety issue with this is that when it stutters it could ca…

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My motor to my vehicle all of a sudden started making noises as I was on my way home and dropped speed and didn’t accelerate past 55MPH, my car started stuttering every time I hit the gas and it won’t go past 2000RPM and my check engine light started blinking at me. The safety issue with this is that when it stutters it could cause a potential crash and put me and others in danger. I took it to a Swope Hyundai dealership and they told me the barrings just automatically became damaged and the motor has to be replaced. I had this car for less than a year and it already starting to have problems. This issue happened 05/18/2021. The issues before the problems started becoming more severe was constant stuttering after I drove off after being to a complete stop from a red light. I’m extremely irritated as to this is the car that is suppose to help me get to work and college yet I can’t because it just decided to just break down on me in less than a YEAR!

NHTSA ODI #11418244

Mileage unknown · May 22, 2021
EngineUnknown Or OtherVehicle Speed Control

I'm really at wit's end with what is going on with my car. My car is currently at 104K, its a 2015 Hyundai Sonata Sport. A beautiful car with an abundance of serious issues. I've had trouble with my car accelerating for over a month and I've taken it to at least 5 mechanics who have troubled shooted with no success to fixing the…

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I'm really at wit's end with what is going on with my car. My car is currently at 104K, its a 2015 Hyundai Sonata Sport. A beautiful car with an abundance of serious issues. I've had trouble with my car accelerating for over a month and I've taken it to at least 5 mechanics who have troubled shooted with no success to fixing the issue. The problem: my car hesitates significantly when accelerating and sometimes when it's can't shift gears and I'm easing my foot on and off the gas pedal, it begins to shake while attempting to accelerate. I try not to put the car in sport mode but sometimes this mode is what helps the car shift gears but I don't think this good for the car. So far I've tried changing all of my spark plugs and coils replaced, fuel injectors cleaned (dealership), transmission fluid changed and ECM updated (dealership). Also, the Hyundai dealership diagnosed the issues as an engine problem (intake exhaust and timing chain + tensioner) --- cost of all these things almost $4000!! I just don't understand why the check engine light is not coming on -- which is hinting at the local mechanics that it might be a transmission based issue. No the check engine light has not come on but the car drives really poorly. I'm taking it to a transmission shop and hopefully going to get some answers as to what is going on. This issue is absolutely frustrating and now I'm just looking for real direction by waiting to see if the engine light will come one and throw a code

NHTSA ODI #11418186

Mileage unknown · May 21, 2021
EngineVehicle Speed ControlInjury

I was driving to work as I normally would from the University I attend. About half way to my destination the check engine light illuminated and right when I was about to find a safe place to stop the car abruptly stopped in the middle of the Highway and stalled on one of the most dangerous highways in the U.S. being US I-20. I a…

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I was driving to work as I normally would from the University I attend. About half way to my destination the check engine light illuminated and right when I was about to find a safe place to stop the car abruptly stopped in the middle of the Highway and stalled on one of the most dangerous highways in the U.S. being US I-20. I almost immediately got hit from behind however a few vehicles behind me did get involved into an accident due to the my car stopping abruptly with little warning. I called hyundai immediately and asked for a tow driver however the wait time was excessive and I had to go to work. I was able to start the car after 20 minutes, but it was in limp mode and I pulled off to the side of the road and had to uber to work. The next day I had got a tow truck to pick up my car and take it to the dealership where they said the car had accidentally triggered the knock sensor by mistake and replaced it free of charge. However the very next day it happened again after driving about 30 miles. And I took it back to the dealer they offered the same thing a replacement sensor. When I did some research and the car actually needed a new Engine after a recall had been placed. Hyundai refused to replace the engine after the knock sensor deployed. This is Hyundai's issue and it needs to be addressed. I was forced to put the car on the side of my house for the time being and get a rental until I could afford another vehicle. This is very disappointing from a consumers point of view. I filed with the extended warranty campaign TXXC and got denied due to the amount of miles on the vehicle. However there was no warning before the engine failed. The car was very well maintained and had regular Oil changes with full synthetic oil every 5k miles. No precursors to the engine failing occurred, like a knocking or jerking or anything. This is an issue that hyundai need to address. I am very disappointed. Campaign reference number for my case 17507525.

NHTSA ODI #11417989

65,000 miles · May 9, 2021
Engine

I WAS DRIVING TO WORK I GOT ABOUT 5 MINUTES AWAY FROM JOB THE LIGHT AHEAD TURNED YELLOW I WENT TO EASE ON THE BRAKE PREPARING TO STOP MY STEERING WHEEL LOCKED CAR CAR SHUT OFF AND WOULDNT START LIKE I SAID I WAS 4 MINUTES AWAY FROM MY JOB SO I MANAGED TO GET IT THERE I CHECKED ALL FLUIDS THEY WERE FINE HOWEVER WHEN I DID OPEN TH…

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I WAS DRIVING TO WORK I GOT ABOUT 5 MINUTES AWAY FROM JOB THE LIGHT AHEAD TURNED YELLOW I WENT TO EASE ON THE BRAKE PREPARING TO STOP MY STEERING WHEEL LOCKED CAR CAR SHUT OFF AND WOULDNT START LIKE I SAID I WAS 4 MINUTES AWAY FROM MY JOB SO I MANAGED TO GET IT THERE I CHECKED ALL FLUIDS THEY WERE FINE HOWEVER WHEN I DID OPEN THE HOOD IT WAS SMOKING FROM MY ENGINE

NHTSA ODI #11415754

10 miles · May 8, 2021
EnginePower Train

I WAS DRIVING TO WORK AT LIKE 4:00 IN THE MORNING IT WAS STILL DARK OUTSIDE THE LIGHT TURNED GREEN AND AS I HIT THE GAS PEDAL THE CAR STALL IT WAS MOVING SLOW SO ON MY RIGHT HAND SIDE THERE WAS A BUILDING SO I TRY TO MAKE IT TO THE PARKING LOT THE CAR STARTED TO POWER DOWN IN A KNOCKING NOISE STARTED IT WAS A BUSY MORNING IN THE…

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I WAS DRIVING TO WORK AT LIKE 4:00 IN THE MORNING IT WAS STILL DARK OUTSIDE THE LIGHT TURNED GREEN AND AS I HIT THE GAS PEDAL THE CAR STALL IT WAS MOVING SLOW SO ON MY RIGHT HAND SIDE THERE WAS A BUILDING SO I TRY TO MAKE IT TO THE PARKING LOT THE CAR STARTED TO POWER DOWN IN A KNOCKING NOISE STARTED IT WAS A BUSY MORNING IN THE MORNING WORK TRAFFIC

NHTSA ODI #11415669

106,000 miles · May 7, 2021
EngineVehicle Speed Control

I HAVE BEEN RECEIVING A 'SAFETY STOP. CHECK HYBRID SYSTEM' WARNING MULTIPLE TIMES. I HAVE TAKEN IT TO HYUNDAI MULTIPLE TIMES TELLING THEM OF THE ISSUE. THEY KEPT TELLING ME NO ISSUE COULD BE FOUND. THE LAST INSTANCE THEY UPDATED THE SOFTWARE IN THE CAR IN WHAT APPEARS TO BE A HAIL MARY TO SAY THEY DID SOMETHING. LAST NIGHT I…

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I HAVE BEEN RECEIVING A 'SAFETY STOP. CHECK HYBRID SYSTEM' WARNING MULTIPLE TIMES. I HAVE TAKEN IT TO HYUNDAI MULTIPLE TIMES TELLING THEM OF THE ISSUE. THEY KEPT TELLING ME NO ISSUE COULD BE FOUND. THE LAST INSTANCE THEY UPDATED THE SOFTWARE IN THE CAR IN WHAT APPEARS TO BE A HAIL MARY TO SAY THEY DID SOMETHING. LAST NIGHT I WAS TRAVELING I WAS TRAVELING ON THE HIGHWAY AT ABOUT 60 MPH. THE CAR STARTED DINGING AND GAVE ME THE WARNING ERROR ATTACHED. THE CAR COMPLETELY LOST POWER AND ONLY ALLOWED ME TO COAST. I WAS LUCKY ENOUGH TO BARELY ABLE TO GET MYSELF INTO A LOCATION OF RELATIVE SAFETY. I PARKED THE CAR AND RESTARTED IT AND WAS ABLE TO DRIVE ONCE AGAIN. THIS CONTINUES TO BE AN ISSUE, EXTREMELY UNSAFE, AND HYUNDAI CANNOT GIVE ME AN EXPLANATION OR FIX THE PROBLEM. THIS IS UNACCEPTABLE AND ALMOST LEAD TO A MASSIVE ACCIDENT.

NHTSA ODI #11415505

50,000 miles · May 3, 2021
Engine

TL* THE CONTACT OWNS A 2015 HYUNDAI SONATA. THE CONTACT STATED THAT THE VEHICLE WAS CONSUMING AN EXCESSIVE AMOUNT OF ENGINE OIL. THE VEHICLE WAS TAKEN TO HUDSON HYUNDAI (977 COMMUNIPAW AVE, JERSEY CITY, NJ 07304) AND LYNNES HYUNDAI (401 BLOOMFIELD AVE, BLOOMFIELD, NJ 07003) WHERE OIL CONSUMPTION TESTS WERE PERFORMED ON THE VEHIC…

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TL* THE CONTACT OWNS A 2015 HYUNDAI SONATA. THE CONTACT STATED THAT THE VEHICLE WAS CONSUMING AN EXCESSIVE AMOUNT OF ENGINE OIL. THE VEHICLE WAS TAKEN TO HUDSON HYUNDAI (977 COMMUNIPAW AVE, JERSEY CITY, NJ 07304) AND LYNNES HYUNDAI (401 BLOOMFIELD AVE, BLOOMFIELD, NJ 07003) WHERE OIL CONSUMPTION TESTS WERE PERFORMED ON THE VEHICLE. THE RESULTS SHOWED THAT THE VEHICLE WAS CONSUMING AN EXCESSIVE AMOUNT OF ENGINE OIL. THE DEALERS INFORMED HIM THAT HE SHOULD ADD OIL EVERY 1,000 MILES. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VEHICLE WAS NOT YET REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 50,000.

NHTSA ODI #11414904

113,000 miles · Apr 22, 2021
Engine

THE VEHICLE WAS IN MOTION. I HEARD A NOISE UNDER THE HOOD. IT GOT LOUDER WHEN I WOULD LET GO OF THE GAS PEDAL. I TOOK IT TO THE HYUNDAI DEALERSHIP ON THORTON ROAD IN LITHIA SPRINGS, GA. IT'S TAKING 4-6 WEEKS JUST TO COMPLETE THE BEARINGS TEST. THE DEALERSHIP HAS NO AVAILABLE TEMPORARY VEHICLES, BECAUSE APPARENTLY SEVERAL OTHER O…

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THE VEHICLE WAS IN MOTION. I HEARD A NOISE UNDER THE HOOD. IT GOT LOUDER WHEN I WOULD LET GO OF THE GAS PEDAL. I TOOK IT TO THE HYUNDAI DEALERSHIP ON THORTON ROAD IN LITHIA SPRINGS, GA. IT'S TAKING 4-6 WEEKS JUST TO COMPLETE THE BEARINGS TEST. THE DEALERSHIP HAS NO AVAILABLE TEMPORARY VEHICLES, BECAUSE APPARENTLY SEVERAL OTHER OWNERS ARE IN FOR THE SAME ISSUE. THIS IS AN INCONVENIENCE, I'LL STILL BE MAKING PAYMENTS ON A VEHICLE THAT IS PARKED. WHEN I CALLED THE DEALERSHIP FOR A ROUGH ESTIMATE FOR TRADE IN, THEY TOLD ME 1K SINCE IT NEEDS A NEW MOTOR.

NHTSA ODI #11413415

62,534 miles · Apr 22, 2021
Engine

I HAD MY OIL CHANGED 2 DAYS AGO. I DROVE TO WORK THE NEXT DAY WITH NO ISSUES. WHEN I WAS DRIVING HOME I HEARD A NOISE AND MY RPM METER WAS FLICKERING. MY CAR HAD STOPPED IN MIDDLE OF STREET. ONCE I WAS ABLE TO GET SAFELY TO THE SIDE OF THE ROAD I INSPECTED MY ENGINE AND SAW THERE WAS A HOLE THE SIZE OF 50 CENT COIN. IN THE ENGIN…

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I HAD MY OIL CHANGED 2 DAYS AGO. I DROVE TO WORK THE NEXT DAY WITH NO ISSUES. WHEN I WAS DRIVING HOME I HEARD A NOISE AND MY RPM METER WAS FLICKERING. MY CAR HAD STOPPED IN MIDDLE OF STREET. ONCE I WAS ABLE TO GET SAFELY TO THE SIDE OF THE ROAD I INSPECTED MY ENGINE AND SAW THERE WAS A HOLE THE SIZE OF 50 CENT COIN. IN THE ENGINE. I AM NOT SURE HOW THIS HAPPENED. AS I JUST BOUGHT THE CAR, 5 MONTHS AGO.

NHTSA ODI #11413392

Mileage unknown · Apr 19, 2021
Engine

MY CAR CUT OFF ON A CITY STREET, ON 4-11-21 AND WHEN I CUT IT BACK ON THE CHECK ENGINE LIGHT CAME ON AND WAS BLINKING WITH THE ACCELERATION REDUCED AND THE CAR WAS JERKING. I GOT THE CODE P1326 FROM A LOCAL AUTO STORE AND UPON DOING RESEARCH, I DISCOVERED THERE'S AN OPEN RECALL FOR THIS SPECIFIC CODE. I SCHEDULED THE APPOINTMENT…

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MY CAR CUT OFF ON A CITY STREET, ON 4-11-21 AND WHEN I CUT IT BACK ON THE CHECK ENGINE LIGHT CAME ON AND WAS BLINKING WITH THE ACCELERATION REDUCED AND THE CAR WAS JERKING. I GOT THE CODE P1326 FROM A LOCAL AUTO STORE AND UPON DOING RESEARCH, I DISCOVERED THERE'S AN OPEN RECALL FOR THIS SPECIFIC CODE. I SCHEDULED THE APPOINTMENT WITH BOB MAYBERRY HYUNDAI, AND HAD THE CAR TOWED TO THE DEALERSHIP IN MONROE, NC. I CALLED FOR AN UPDATE AND WAS TOLD THAT THEY WERE WAITING ON THE CORPORATE OFFICE TO APPROVE THE NEXT STEPS AND THAT THE SAME CODE P1326 POPPED UP. I CALLED THE CORPORATE OFFICE ON WEDNESDAY MORNING AFTER GETTING NOWHERE WITH THE DEALERSHIP AND WAS CALLED SHORTLY AFTER STATING THAT THE CAR WAS READY FOR PICK UP FOLLOWED BY SOME THINGS THAT NEEDED TO BE REPAIRED. THEY CLEARED THE CODE WITH A SYSTEM UPDATE BUT WHEN I GOT THE CAR BACK IT WAS STILL GIVING ACCELERATION ISSUES, I CALLED AND REPORTED THE ISSUE TO THE HYUNDAI CORPORATE OFFICE AND WAS ADVISED TO TAKE THE CAR TO ANOTHER DEALERSHIP AND THEY WOULD WORK OUT THE DETAILS. I SCHEDULED MY APPOINTMENT WITH THE HYUNDAI OF LAKE NORMAN, NC FOR TODAY 4-19-21 AND WAS ADVISED THE CAR PASSED THE TESTS THAT THEY RAN AND AGAIN WAS PROVIDED A LIST OF RECOMMENDATIONS OF REPAIRS. I GOT THE CAR BACK AND NOW THE ACCELERATION ISSUES STILL IS ONGOING ESPECIALLY IF I AM STOPPED AND TAKE OFF BUT NOW IF I DRIVE OVER 50MPH THE CAR IS SHAKING. I HAD MY BRAKE PADS REPLACED AND PAID FOR THE OIL LEAK LAST WEEK. THIS IS THE SECOND DEALERSHIP THAT PUT ME PUT ME BACK IN THE CAR WITH KNOWN ISSUES. I FEEL LIKE THEY'RE GOING TO HAVE ME PAY FOR EVERYTHING BEFORE THE CAR IS REPAIRED AND NOW I AM IN FEAR THAT IF CAR SHUTS OFF AGAIN, MYSELF BUT MY CHILDREN COULD BE INJURED.

NHTSA ODI #11412954

Official recalls

9

21V749000 · Electrical System:software; Exterior Lighting:turn Signal

Sep 24, 2021

Hyundai Motor America (Hyundai) is recalling certain 2015-2017 Sonata, 2016-2017 Sonata Hybrid, and Sonata Plug-In Hybrid vehicles. The Smart Junction Box (SJB) software logic may not properly interpret the signals received from the multifunction switch, which could cause the turn signal to activate in the opposite direction of what the driver intended.

Consequence & remedy

Consequence: A turn signal that activates in the opposite direction of what was intended by the driver increases the risk of a crash.

Remedy: Dealers will update the SJB software, free of charge. Owner notification letters were mailed November 19, 2021. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 210.

Additional source detail variants (2)

Electrical System:software

Hyundai Motor America (Hyundai) is recalling certain 2015-2017 Sonata, 2016-2017 Sonata Hybrid, and Sonata Plug-In Hybrid vehicles. The Smart Junction Box (SJB) software logic may not properly interpret the signals received from the multifunction switch, which could cause the turn signal to activate in the opposite direction of what the driver intended.

Consequence: A turn signal that activates in the opposite direction of what was intended by the driver increases the risk of a crash.

Remedy: Dealers will update the SJB software, free of charge. Owner notification letters were mailed November 19, 2021. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 210.

Exterior Lighting:turn Signal

Hyundai Motor America (Hyundai) is recalling certain 2015-2017 Sonata, 2016-2017 Sonata Hybrid, and Sonata Plug-In Hybrid vehicles. The Smart Junction Box (SJB) software logic may not properly interpret the signals received from the multifunction switch, which could cause the turn signal to activate in the opposite direction of what the driver intended.

Consequence: A turn signal that activates in the opposite direction of what was intended by the driver increases the risk of a crash.

Remedy: Dealers will update the SJB software, free of charge. Owner notification letters were mailed November 19, 2021. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 210.

17V359000 · Parking Brake:indicator Light

Jun 5, 2017

Hyundai Motor America (Hyundai) is recalling certain 2015-2016 Sonata and Genesis vehicles. In the affected vehicles, the warning light to indicate that the parking brake is applied may intermittently not illuminate in the dash due to corrosion in the switch.

Consequence & remedy

Consequence: If the parking brake indicator is not illuminated when the parking brake is applied, the driver may operate the vehicle with the parking brake partially engaged, increasing the risk of a crash.

Remedy: Hyundai will notify owners, and dealers will replace the parking brake switch, free of charge. The recall began on August 4, 2017. Owners may contact Hyundai customer service at 1-855-671-3059. Hyundai's number for this recall is 164.

16V726000 · Visibility:sun/moon Roof Assembly

Oct 11, 2016

Hyundai Motor America (Hyundai) is recalling certain model year 2015-2016 Sonata Hybrid vehicles manufactured December 8, 2014, to August 18, 2015, and Hyundai Sonata vehicles manufactured May 28, 2014, to March 18, 2016, equipped with the panoramic sunroof option. Due to a bonding issue with the sunroof wind deflector, the sunroof panel on the affected vehicles may detach while driving.

Consequence & remedy

Consequence: If the sunroof detaches from the vehicle it could become a road hazard, increasing the risk of a crash.

Remedy: Hyundai will notify owners, and dealers will repair the wind deflector anchor plate, free of charge. The recall began December 2016. Owners may contact Hyundai customer service at 1-800-633-5151. Hyundai's number for this recall is 152.

16V232000 · Air Bags:frontal

Apr 21, 2016

Hyundai Motor Company (Hyundai) is recalling certain model year 2015-2016 Sonata vehicles manufactured May 29, 2014 to February 11, 2016, 2017 Elantra vehicles manufactured January 12, 2016 to February 22, 2016, and one 2016 Sonata Hybrid vehicle manufactured October 15, 2015. In these vehicles, the driver's frontal air bag may be missing a chemical enhancer required for the second stage air bag deployment, resulting in the second stage not deploying in certain crashes. The primary stage will deploy as intended.

Consequence & remedy

Consequence: An air bag that does not inflate increases the risk of injury.

Remedy: Hyundai will notify owners, and dealers will replace the driver's frontal air bag module, free of charge. The recall began on May 5,2016. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 144.

15V678000 · Electrical System: Instrument Cluster/panel

Oct 20, 2015

Hyundai Motor America (Hyundai) is recalling certain model year 2015-2016 Sonata vehicles manufactured May 28, 2014, to August 21, 2015. The affected vehicles are equipped with an Antilock Braking System (ABS) warning light intended to warn the driver if there is an ABS malfunction. In the event of an ABS malfunction, the Brake System warning light will illuminate, but the ABS warning light will not illuminate. Since the vehicles have ABS malfunction lights that do not illuminate, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 135, "Light Vehicle Brake Systems."

Consequence & remedy

Consequence: If the driver is alerted there is a brake system malfunction, but not specifically with the ABS system, the driver may operate the vehicle unaware that the vehicle's brakes may lock up during hard braking, increasing the risk of a crash.

Remedy: Hyundai will notify owners, and dealers will update the ABS control unit software, free of charge. The recall is expected began on November 30, 2015. Owners may contact Hyundai customer service at 1-855-671-3059. Hyundai's number for this recall is 134.

15V414000 · Seat Belts:front:buckle Assembly

Jun 30, 2015

Hyundai Motor America (Hyundai) is recalling certain model year 2015 Sonata vehicles manufactured April 25, 2014, to December 4, 2014. The affected vehicles have a front passenger seat belt whose buckle latch assembly may prevent the front passenger from fastening the seat belt.

Consequence & remedy

Consequence: If the front passenger seat belt cannot be latched, an occupant sitting in the front passenger seat has an increased risk of injury in the event of a crash.

Remedy: Hyundai will notify owners, and dealers will repair or replace the front passenger seat belt buckle, free of charge. The recall began on September 15, 2015. Owners may contact Hyundai customer service at 1-855-671-3059. Hyundai's number for this recall is 130.

14V784000 · Power Train:axle Assembly:axle Shaft

Dec 9, 2014

Hyundai Motor America (Hyundai) is recalling certain 1.6 liter model year 2015 Sonata vehicles manufactured August 29, 2014, to October 28, 2014. The affected vehicles may have been assembled with an incorrect left axle shaft which may result in the shaft separating from the transaxle differential.

Consequence & remedy

Consequence: If the left axle shaft separates from the transaxle, the vehicle may stop moving, increasing the risk of a crash. Additionally, a separated axle shaft may allow the vehicle to roll away as the driver and other occupants exit the vehicle or anytime thereafter. A vehicle rollaway increases the risk of injury to exiting occupants and bystanders.

Remedy: Hyundai will notify owners, dealers will inspect and replace the axle shaft, as necessary, free of charge. Owners may contact Hyundai customer service at 1-800-633-5151. Hyundai's number for this recall is 126.

14V368000 · Service Brakes, Hydraulic:foundation Components:disc:caliper

Jun 24, 2014

Hyundai Motor Company (Hyundai) is recalling certain model year 2015 Sonata vehicles manufactured April 25, 2014, through June 16, 2014. Due to a manufacturing error, one or both of the front brake calipers may fracture.

Consequence & remedy

Consequence: If a brake caliper fractures, brake effectiveness would be reduced, lengthening to distance required to stop the vehicle, increasing the risk of a crash.

Remedy: Hyundai contacted the affected owners on June 19, 2014 and instructed them not to drive their vehicles. Hyundai dealers will replace the affected brake calipers, free of charge. The recall began on September 12, 2014. Owners may contact Hyundai customer service at 1-800-633-5151. Hyundai's number for this recall is 120.

14V325000 · Electrical System:wiring; Steering

Jun 12, 2014

Hyundai Motor Company (Hyundai) is recalling certain model year 2015 Sonata vehicles manufactured May 2, 2014, through May 23, 2014. A poor connection within the vehicle's wiring harness may result in a reduction of steering assist from the vehicle's motor driven power steering system or the inability to move the vehicle's shifter from the Park position.

Consequence & remedy

Consequence: The reduction of power steering assist can increase the steering effort needed, increasing the risk of a crash.

Remedy: Hyundai notified dealers to suspend sales of affected Sonata vehicles and has published recall bulletin 14-01-024 providing a service procedure to repair the affected vehicles. On June 7, 2014 Hyundai began to contact the affected retail customers. Owners may contact Hyundai customer service at 1-800-633-5151. Hyundai's number for this recall is 119.

Additional source detail variants (2)

Electrical System:wiring

Hyundai Motor Company (Hyundai) is recalling certain model year 2015 Sonata vehicles manufactured May 2, 2014, through May 23, 2014. A poor connection within the vehicle's wiring harness may result in a reduction of steering assist from the vehicle's motor driven power steering system or the inability to move the vehicle's shifter from the Park position.

Consequence: The reduction of power steering assist can increase the steering effort needed, increasing the risk of a crash.

Remedy: Hyundai notified dealers to suspend sales of affected Sonata vehicles and has published recall bulletin 14-01-024 providing a service procedure to repair the affected vehicles. On June 7, 2014 Hyundai began to contact the affected retail customers. Owners may contact Hyundai customer service at 1-800-633-5151. Hyundai's number for this recall is 119.

Steering

Hyundai Motor Company (Hyundai) is recalling certain model year 2015 Sonata vehicles manufactured May 2, 2014, through May 23, 2014. A poor connection within the vehicle's wiring harness may result in a reduction of steering assist from the vehicle's motor driven power steering system or the inability to move the vehicle's shifter from the Park position.

Consequence: The reduction of power steering assist can increase the steering effort needed, increasing the risk of a crash.

Remedy: Hyundai notified dealers to suspend sales of affected Sonata vehicles and has published recall bulletin 14-01-024 providing a service procedure to repair the affected vehicles. On June 7, 2014 Hyundai began to contact the affected retail customers. Owners may contact Hyundai customer service at 1-800-633-5151. Hyundai's number for this recall is 119.

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.

EA21003 · Engine Fires

Opened Dec 22, 2021 · Closed Feb 5, 2024

Status: closed (inferred from source dates) · Engine

On March 29, 2019, the Office of Defects Investigation (ODI) opened two Preliminary Evaluations (PE19-003 on Hyundai and PE19-004 on Kia) to broadly investigate incidents of non-crash fires (regardless of origin or operational status of the vehicle) on various model year Hyundai and Kia vehicles.  During the PE investigations, Hyundai and Kia issued several recalls to address vehicle fires, including those due to engine failures involving various engine types.  The remedies for the engine failure recalls typically involve engine inspection (to detect existing damage), and if necessary, engine replacement.  Additionally, both manufacturers have been installing an engine control software modification known as Knock Sensor Detection Software (KSDS) which is intended to detect impending engine failure, alert the driver, and limit engine power (to lessen likelihood of engine failure).KSDS is being installed under recalls and non-safety field actions, and both companies have extended limited engine warranties (see recall files). On December 22, 2021, ODI upgraded PE19-003 and PE19-004 to this Engineering Analysis (EA21-003, covering both Hyundai and Kia) to evaluate the scope of the prior recalls related to engine failures/fires and the efficacy of the recall remedies for the recalls, as well as the long-term viability of related programs and non-safety field actions being conducted by Hyundai and Kia.  The former issue involved approximately 550,000 MY 2013 Hyundai Elantra, MY 2011 Kia Sorento, and MY 2012-2015 Kia Rio.  The latter issue involved approximately 2.5 million recalled vehicles, which have been identified as displaying potential remedy concerns: Hyundai recalls 15V-568, 17V-226, 20V-746, and 21V-727; and Kia recalls 17V-224, 19V-120, 20V-750, and 21V-844. Regarding the recall scope issue, among all of the scope vehicles identified at EA opening, ODI found only the MY 2011 Kia Sorento vehicles equipped with both the Theta II 2.4L 4-cylinder Multi-Point Injection (MPI) and the Lambda II 3.5L 6-cylinder MPI engines experienced relatively high rates of reported fires.  In December 2023, Kia issued recall 23V-877 that will cover about 80,000 MY 2011 Kia Sorento vehicles equipped with the Theta II 2.4L MPI engines.  The remedy will involve an inspection, and if necessary, a replacement of the engine, as well as the installation of KSDS.  It should be noted that in 2021 these vehicles were included in a KSDS product improvement campaign with warranty extension.  For the MY 2011 Sorento vehicles equipped with the Lambda II 3.5L engines, ODI believes that future engine failures/fires involving these vehicles will likely be due to a lax in adhering to the proper or scheduled engine maintenance (regular engine oil changes), rather than a design or manufacturing engine issue. Regarding the issue of the efficacy of the recall remedies, ODI found the majority of the recalled Hyundai and Kia vehicles, by model, experienced lower reported fire rates after the remedies were applied.  Furthermore, ODI found that for most vehicles that did not receive the recall remedies, by model, experienced relatively high fire rates.  To address this problem, Hyundai informed ODI in December 2023, that it will renotify all of its owners covered by the Hyundai recalls of engine failures/fires every 8 months for the next 3 years.  In December 2023, Kia stated that it will renotify the majority of its owners every 8 months for the next 3 years.Several previously recalled Kia models are excluded from the renotification due to their lower reported rates of engine fires.  Overall, the renotification actions will help to increase the recall completion rates, thus reduce the frequency of engine fires in the future. In view of the recall action being taken by Kia and renotification actions being taken by both Kia and Hyundai, ODI is closing this Engineering Analysis.  Also, both companies have been released from the 2020-iniated Consent Orders (Kia since November 2022 and Hyundai since November 2023).  The agency reserves the right to take additional action if warranted by future circumstances.  To review the reports 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.

EA19001 · Electrical Overstress

Opened Apr 19, 2019 · Closed Sep 19, 2024

Status: closed (inferred from source dates) · Air Bags: Air Bag/restraint Control Module

The Office of Defects Investigation (ODI) opened this investigation to determine if the failure of airbags to deploy during severe crashes, in certain vehicles, was the result of a safety related defect.  During the investigation a complex failure was studied that can result in non-deployment of subject vehicle air bags and other restraint system devices in severe crash events. The subject vehicles may be equipped with an airbag control unit (ACU) for the supplemental restraint system (SRS) Electronic Control Unit (ECU) manufactured by ZF-TRW.  The ECU receives signals from crash sensors mounted in the vehicle and deploys the vehicle air bags and seat belt pretensioners in accordance with manufacturer design specifications.  The ECU in the subject vehicles contains a model DS84 application-specific integrated circuit (ASIC) which controls the communication of the crash sensor signal, firing commands (i.e., when to deploy the airbag(s) and/or pretensioners), and fault information (e.g., diagnostic trouble codes). In September 2016, FCA announced recall 16V-668 for certain model year (MY) 2010 to 2014 Chrysler, Dodge and Jeep products manufactured with the subject ZF-TRW ACU.  In this recall, FCA discussed an EOS condition that resulted in a failure of the subject DS84 ASIC, which caused air bag non-deployment.  FCA noted that the defect condition had only been observed in vehicles equipped with sensor harnessing routed across the front of the vehicle.  Other FCA vehicles that also used the subject ACU, but were not equipped with cross-car harnessing, had not experienced EOS failures, despite similar time in service. During the course of this investigation, ODI sent two separate Information Request (IR) letters to six vehicle manufactures (including FCA, Hyundai, Honda, Kia, Mitsubishi, and Toyota) and one IR letter to ZF-TRW.  These IR letters resulted in ODI receiving comprehensive data from these manufacturers and suppliers. Studies of this data found that the DS84 ASIC does not have sufficient protection against negative electrical transients or electrical overstress (“EOS”) that can be generated in certain severe crashes.  An electrical transient occurs when the electrical power supplied to a circuit changes momentarily over a short duration of time.   In these severe crash cases, the crash sensors and other powered wiring can be damaged and short circuited so as to create a negative electrical transient of sufficient intensity and duration (that are outside the vehicle manufacturer's specification) to damage the ASIC before the restraint device deployment signal is received by the SRS ECU.  This damaged signal can lead to incomplete or nondeployment of the air bags and/or pretensioners.  Airbag non-deployment and/or lack of pretensioner operation can increase the risk or severity of injury in a crash.A total of 8 fatalities and 14 injuries were associated with known EOS events. The common element in all investigated manufacturers vehicles is the SRS ECU containing a DS84 ASIC manufactured by ZF-TRW.  The risk associated with the ASIC is equally shared among all OEMS involved in the investigation.  The actual real-world risk can be mitigated by other factors which were assessed by ODI during this investigation. The first mitigating factor involves protections built into the ACU design which protect the DS84 ASIC from damage.  There are multiple strategies and levels of protection employed by different OEMs that provide effective EOS mitigation.  The two most common strategies at the ACU level are circuit protection diodes on the remote senor signal lines, and current limiting resistors that protect critical components. The second mitigating factor is found at the vehicle level and involves the location and routing of the wires leading from the crash sensors to the SRS ECU.  If the wires are well protected in a crash and are not routed with other power wires carrying large currents, the risk for an EOS event is significantly reduced or eliminated. These design specific factors combine to produce a spectrum of risk for the vehicles equipped with ACUs using the DS84 ASIC.  Given the many of years of field exposure, it is possible to divide the subject population into two groups; vehicles which have experienced EOS events, and vehicles which have not experienced EOS field events. Four of the six OEMs involved in this investigation have experienced EOS field events on at least one of their models equipped with a DS84 ASIC.  All vehicle models (including the Toyota models identified in the Failure Report Summary of the opening resume for this investigation) with field events have been recalled.  In an abundance of caution, ODI kept this investigation open five years to monitor field performance and did not identify any field events on vehicles not included in existing safety recalls. Given the spectrum of risk identified in this investigation and that all vehicles with a demonstrated unreasonable risk have been recalled, ODI is closing this investigation. ODI is closing this investigation with the following manufacturer safety recalls: 16V-668, 18E-043, 18V-137, 18V-363, and 20V-024.  With the recall actions taken by the subject vehicle and equipment manufacturers, this investigation is closed. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exists on other model or model year vehicles outside of the recall scopes. The agency reserves the right to take further action if warranted by the circumstances.