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2016 Hyundai Tucson

Owner reports · Recalls · Investigations

More warning signs than most Tucson years

Owner complaints for the 2016 Hyundai Tucson are substantially higher than the model-year median of 180.5.

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When problems were reported

Mileage at the reported incident

832 reports with mileage · 785 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.

  • Power Train. Review the 516 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine. Review the 423 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Structure. Review the 227 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

14 crash reports24 fire reports6 injury reports

Power Train complaints

516 reports
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6,000 miles · Jun 2, 2017
Power TrainVehicle Speed Control

OCCASIONALLY, ON A CITY STREET AT STOP SIGNAL OR STOP SIGN, VEHICLE FAILS TO ACCELERATE FROM A STOP AS GAS PEDAL IS PRESSED. REVS TO HIGH RPM'S, AND AS TRANSMISSION CATCHES UP, THE VEHICLE LUNGES FORWARD VIOLENTLY, NEARLY CAUSING REAR END COLLISION ON SEVERAL DIFFERENT OCCASIONS. CONTINUES TO HAPPEN AFTER TWO SEPARATE RECALL/DCT…

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OCCASIONALLY, ON A CITY STREET AT STOP SIGNAL OR STOP SIGN, VEHICLE FAILS TO ACCELERATE FROM A STOP AS GAS PEDAL IS PRESSED. REVS TO HIGH RPM'S, AND AS TRANSMISSION CATCHES UP, THE VEHICLE LUNGES FORWARD VIOLENTLY, NEARLY CAUSING REAR END COLLISION ON SEVERAL DIFFERENT OCCASIONS. CONTINUES TO HAPPEN AFTER TWO SEPARATE RECALL/DCT PROGRAM UPDATES WITH HYUNDAI DEALER.

NHTSA ODI #10992883

9,000 miles · Jun 1, 2017
Power Train

WHEN LEAVING A STOP SIGN THE CAR WOULD NOT SPEED UP. HAD THE TRANSMISSION SOFTWARE UPDATED FROM A RECALL, BUT THE PROBLEM KEEPS HAPPENING. WAS ALMOST HIT BY ANOTHER VEHICLE BECAUSE OF THIS PROBLEM.

NHTSA ODI #10992740

Mileage unknown · May 31, 2017
Power TrainVehicle Speed Control

10/12/16: BROUGHT IN FOR RECALL OF DCT AFTER CALLING TO SCHEDULE A SERVICE TO ADDRESS THE TRANSMISSION NOT ACCELERATING PROPERLY AND HESITATING TO CHANGE GEARS. 12/29/16. RETURNED FOR SAME ISSUE WITH TRANSMISSION. SERVICE PERFORMED A 2ND RECALL ON AN UPGRADE TO TRANSMISSION FOR SAME ISSUE. 2/23/17 RETURNED AGAIN FOR SAME …

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10/12/16: BROUGHT IN FOR RECALL OF DCT AFTER CALLING TO SCHEDULE A SERVICE TO ADDRESS THE TRANSMISSION NOT ACCELERATING PROPERLY AND HESITATING TO CHANGE GEARS. 12/29/16. RETURNED FOR SAME ISSUE WITH TRANSMISSION. SERVICE PERFORMED A 2ND RECALL ON AN UPGRADE TO TRANSMISSION FOR SAME ISSUE. 2/23/17 RETURNED AGAIN FOR SAME ISSUE. NO MAINTENANCE PERFORMED. STATED THAT ALL WAS FUNCTIONING PROPERLY AND THAT IS HOW A DCT SHOULD RESPOND. 4/25/17. RETURNED AGAIN FOR SAME ISSUE. STATED NO PROBLEMS EXISTS. ENGINEER WAS GOING TO BE CONTACTED TO PERFORM TEST DRIVE AND FURTHER INVESTIGATE ISSUES. ENGINEER CONTACTED AND REFUSED TO COME AND PERFORM TEST DRIVE. 4/26/17: CONTACTED HYUNDAI CONSUMER AFFAIRS (COMPLAIN #10185159). CASE MANAGER ASSIGNED. STATED I WOULD HEAR WITHIN 3-5 DAYS. NEVER HEARD. 4/28/17: AFTER SPEAKING WITH AN ATTORNEY, SENT A CERTIFIED LETTER TO HYUNDAI 112 RE: VEHICLE AND WANTING TO TERMINATE LEASE B/C THEY CAN'T FULFILL SAFETY AND REPAIRS. (HEARD BACK FROM FRAN IN SERVICE...NO RECOURSE OFFERED) 5/4/17: CONTACTED CONSUMER AFFAIRS FOR A 2ND TIME. NO RESULTS. LEFT MESSAGE FOR CASE MANAGER AND HER MANAGER. 5/4/17: SPOKE TO FRAN (112 HYUNDAI) WAITING TO HEAR OF APPOINTMENT WITH ENGINEER. 5/10/17: CONTACTED BY CLAIMS TO SCHEDULE AN APPOINTMENT ON 5/18 WITH ENGINEER AND REGIONAL MANAGER. 5/18/17: PRIOR TO TEST DRIVE, ENGINEER CLAIMED THERE WAS NOTHING WRONG WITH THE VEHICLE AND THAT THE TRANSMISSION WAS DESIGNED TO PERFORM AS IT WAS. COMPLETED TEST DRIVE WITH ENGINEER WHILE HE PROVIDED TIPS OF HOW TO PROPERLY DRIVE WITH A DCT AND HOW THE VEHICLE WAS DESIGNED WITH THE HESITATION KNOWN. 5/27/17: CONTACTED A PRIVATE TRANSMISSION SPECIALIST REGARDING HESITATION/JERKING OF TRANSMISSION. PROVIDED A TEST DRIVE AND IT WAS AGREED THAT THE TRANSMISSION WAS HESITATING AND JERKING WHEN TRYING TO ACCELERATE WHICH IS NOT NORMAL.

NHTSA ODI #10992473

17,662 miles · May 27, 2017
Power Train

2016 HYUNDAI TUCSON 1.6T WITH THE 7SPD DUAL CLUTCH TRANSMISSION REFUSED TO RESPOND TO ACCELERATOR PEDAL AFTER STARTING FROM A DEAD STOP. SITUATION: STOPPED AT AN INTERSECTION WAITING TO TURN LEFT, PROCEEDED TO ACCELERATE FROM THE STOP TO TURN LEFT THROUGH THE INTERSECTION AT ~5MPH AND HALF WAY THROUGH THE MIDDLE OF THE TURN/INT…

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2016 HYUNDAI TUCSON 1.6T WITH THE 7SPD DUAL CLUTCH TRANSMISSION REFUSED TO RESPOND TO ACCELERATOR PEDAL AFTER STARTING FROM A DEAD STOP. SITUATION: STOPPED AT AN INTERSECTION WAITING TO TURN LEFT, PROCEEDED TO ACCELERATE FROM THE STOP TO TURN LEFT THROUGH THE INTERSECTION AT ~5MPH AND HALF WAY THROUGH THE MIDDLE OF THE TURN/INTERSECTION THE CAR REFUSED TO RESPOND TO GAS PEDAL INPUT FOR INCREASED SPEED. I TRIED DEPRESSING THE GAS PEDAL MORE, BUT NO RESPONSE. I COMPLETELY LET OFF THE PEDAL AND THEN RE-APPLIED AND THE CAR STARTED TO RESPOND WITH REGULAR POWER DELIVERY WITH THE TRANSMISSION SHUDDERING A BIT. CARS APPROACHING THE INTERSECTION HAD TO WAIT FOR ME TO GET THROUGH, LUCKILY IT WASN'T EXTREMELY BUSY WITH FAST MOVING TRAFFIC. I FEEL THIS 'RANDOM' LACK OF RESPONSE TO THE GAS PEDAL POSES A SERIOUS SAFETY ISSUE. THE TUCSON HAS HAD THE LATEST T1B DCT UPDATE (16-01-057) APPLIED AT THE DEALER SINCE 3/11/17. THIS IS NOT THE FIRST TIME THE CAR HAS GIVEN ME ISSUES ACCELERATING OR CONTINUING TO ACCELERATE. TRANSMISSION ALSO EXPERIENCES INTERMITTENT PROBLEMS WHEN ASKING TO DOWNSHIFT UNDER 3/4-FULL THROTTLE CONDITIONS - IT OFTEN WILL HALF ENGAGE AND FEEL LIKE IT'S SLIPPING IN GEAR EVENTUALLY APPLYING THE RIGHT GET WITH NO SLIP. THIS CREATES QUESTIONABLE PASSING ON THE HIGHWAY SINCE YOU NEVER REALLY KNOW WHAT THE TRANSMISSION IS GOING TO DO WHEN REQUESTING IT TO PERFORM MULTIPLE DOWNSHIFTS UNDER POWER.

NHTSA ODI #10991915

15,000 miles · May 25, 2017
Electrical SystemPower Train

THE 2016 HYUNDAI TUCSON ECO WITH 1.6T TRANSMISSION PROBLEM. VEHICLE TRANSMISSION WILL FAIL TO MOVE VEHICLE FORWARD AT TIMES AND HAS CAUSED US TO BE STUCK IN AN INTERSECTION NUMEROUS TIMES EVEN THOUGH VEHICLE SAYS ITS IN DRIVE. RPMS JUST REV TO REDLINE BUT VEHICLE WILL NOT MOVE UNTIL YOU LET OFF THE GAS AND LET IT IDLE BACK DOW…

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THE 2016 HYUNDAI TUCSON ECO WITH 1.6T TRANSMISSION PROBLEM. VEHICLE TRANSMISSION WILL FAIL TO MOVE VEHICLE FORWARD AT TIMES AND HAS CAUSED US TO BE STUCK IN AN INTERSECTION NUMEROUS TIMES EVEN THOUGH VEHICLE SAYS ITS IN DRIVE. RPMS JUST REV TO REDLINE BUT VEHICLE WILL NOT MOVE UNTIL YOU LET OFF THE GAS AND LET IT IDLE BACK DOWN TO IDLE ENGINE SPEED. THEN YOU CAN TRY IT AGAIN AND IT DRIVES NORMAL. ONE TIME HAD TO SHUT ENTIRE VEHICLE OFF IN THE INTERSECTION AND RESTART IT TO GET IT TO MOVE.

NHTSA ODI #10991631

12,500 miles · May 24, 2017
Power Train

10-31-2015 PURCHASED VEHICLE. 10-31-2015. 3-2-2016 MILEAGE 1691, RETURNED VEHICLE BACK TO HYUNDAI DEALER FOR ECM ENGINE CONTROL MODULE & TCM TRANSMISSION CONTROL MODULE SOFTWARE UPDATES PER TY8 HARD SHIFTING COMPLAINTS. 7-22-2016 CAMPAIGN 145 SECONDARY HOOD LATCH REPAIR. 10-21-2017 CAMPAIGN 149 ECM & TCM SOFTWARE UPDATE FOR DCT …

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10-31-2015 PURCHASED VEHICLE. 10-31-2015. 3-2-2016 MILEAGE 1691, RETURNED VEHICLE BACK TO HYUNDAI DEALER FOR ECM ENGINE CONTROL MODULE & TCM TRANSMISSION CONTROL MODULE SOFTWARE UPDATES PER TY8 HARD SHIFTING COMPLAINTS. 7-22-2016 CAMPAIGN 145 SECONDARY HOOD LATCH REPAIR. 10-21-2017 CAMPAIGN 149 ECM & TCM SOFTWARE UPDATE FOR DCT PROBLEMS. 5-2-2017 T1B ECM SOFTWARE UPDATE FOR DCT PROBLEMS. SOFTWARE UPDATE IMPROVES TRANSMISSION JERKING FROM 0 TO 15 MPH. 5-21-2017 MILEAGE 12,500, OUTSIDE TEMP 70 DEG F, STRANDED ON INTERSTATE, TRANSMISSION IN DRIVE BUT NOT VEHICLE NOT MOVING. VEHICLE TOWED TO DEALER. HYUNDAI SERVICE FINDS FAULTY FUEL TANK PRESSURE SENSOR AND BAD WIRING HARNESS. REPLACES BOTH. 5-23-2017 PICKED UP VEHICLE AND DROVE NORMAL ON WAY HOME. I HAVE LOST CONFIDENCE IN THIS VEHICLE AND WISHED I HAD PURCHASED THE SE MODEL WITH THE 6 SPEED CONVENTIONAL TRANSMISSION AND NOT THE 7 SPEED DUAL CLUTCH TRANSMISSION. TIME WILL TELL IF THIS LAST REPAIR WILL SOLVE THE NUMEROUS DCT PROBLEMS.

NHTSA ODI #10991356

Mileage unknown · May 22, 2017
Power Train

ANY RECALLS ON THE 7 SPEED DUAL CLUTCH TRANSMISSION THAT IS IN MY LEMON ?

NHTSA ODI #10990909

10 miles · May 19, 2017
Power Train

HORRIBLE ACCELERATION HESITATION...VERY UNSAFE....DEPRESS GAS PEDAL AND NO RESPONSE FOR A FEW SECONDS.

NHTSA ODI #10990649

500 miles · May 17, 2017
Power Train

FAULTY DUAL CLUTCH TRANSMISSION CAUSES THE VEHICLE TO HESITATE WITHOUT WARNING WHEN THE GAS PEDAL IS PUSHED. THIS HAPPENS AT RANDOM TIMES AND WITH DIFFERENT DEGREES OF SEVERITY. THIS HAS HAPPENED ON MANY OCCASIONS AND CREATES A MAJOR SAFETY HAZARD AS THE ACCELERATION MAY NOT BE THERE WHEN NEEDED. HYUNDAI HAS KNOWN THEIR DCT IS …

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FAULTY DUAL CLUTCH TRANSMISSION CAUSES THE VEHICLE TO HESITATE WITHOUT WARNING WHEN THE GAS PEDAL IS PUSHED. THIS HAPPENS AT RANDOM TIMES AND WITH DIFFERENT DEGREES OF SEVERITY. THIS HAS HAPPENED ON MANY OCCASIONS AND CREATES A MAJOR SAFETY HAZARD AS THE ACCELERATION MAY NOT BE THERE WHEN NEEDED. HYUNDAI HAS KNOWN THEIR DCT IS FAULTY AND THEY HAVE NOT BEEN ABLE TO FIX THIS PROBLEM AFTER SEVERAL ATTEMPTS, INCLUDING 2 RECALLS FOR THIS ISSUE. LIVES ARE AT RISK FOR NOT ONLY THE DRIVER BUT OTHER DRIVERS AS WELL.

NHTSA ODI #10986278

17,000 miles · May 12, 2017
Power Train

TL* THE CONTACT OWNS A 2016 HYUNDAI TUCSON. WHILE THE VEHICLE WAS STATIONARY, IT JERKED WHEN THE CONTACT REMOVED HIS FOOT FROM THE BRAKE PEDAL. THE CONTACT STATED THAT IT FELT AS IF THE VEHICLE WOULD STALL. IT WAS DIAGNOSED THAT THE JERKING CONDITION WAS A FEATURE OF THE VEHICLE DUE TO THE PRESENCE OF A DUAL CLUTCH. THE VEHICLE …

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TL* THE CONTACT OWNS A 2016 HYUNDAI TUCSON. WHILE THE VEHICLE WAS STATIONARY, IT JERKED WHEN THE CONTACT REMOVED HIS FOOT FROM THE BRAKE PEDAL. THE CONTACT STATED THAT IT FELT AS IF THE VEHICLE WOULD STALL. IT WAS DIAGNOSED THAT THE JERKING CONDITION WAS A FEATURE OF THE VEHICLE DUE TO THE PRESENCE OF A DUAL CLUTCH. THE VEHICLE WAS REPAIRED AND THE CLUTCH ACTUATOR WAS REPLACED, BUT THE FAILURE RECURRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 17,000.

NHTSA ODI #10985428

Official recalls

5

20V543000 · Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip:control Unit/module

Sep 4, 2020

Hyundai Motor America (Hyundai) recalled certain 2019-2021 Tucson vehicles on September 4, 2020. On December 30, 2020, Hyundai expanded the recall population, and added certain 2016-2018 Tucson vehicles. The Anti-lock Brake Hydraulic Electronic Control Unit (HECU) could corrode internally and cause an electrical short, possibly resulting in an engine compartment fire.

Consequence & remedy

Consequence: An engine compartment fire can increase the risk of injury or crash.

Remedy: Hyundai will notify owners, and dealers will replace the HECU fuse. For 2019-2021 model years, the Electronic Stability Control (ESC) software will also be updated. Recall repairs will be performed free of charge. Owners are advised to park outside and away from structures as a precaution until the recall repair is complete. The recall began November 2, 2020. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 195.

16V842000 · Electrical System:wiring; Trailer Hitches

Nov 21, 2016

Hyundai Motor America (Hyundai) is recalling certain model year 2016-2017 Tucson vehicles manufactured May 19, 2015, to November 14, 2016, and 2017 Santa Fe vehicles manufactured November 28, 2015, to November 14, 2016. The affected vehicles may be equipped with an accessory trailer hitch wiring harness that, due to a malfunction of the tow hitch module, may result, in the trailer brake lights being constantly illuminated. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 108, " Lamps, Reflective Devices, and Associated Equipment."

Consequence & remedy

Consequence: If the trailer brake lights stay illuminated while being used, other drivers may be confused, increasing the risk of a crash.

Remedy: Hyundai will notify owners, and dealers will replace the affected accessory trailer hitch wiring harnesses, free of charge. The recall is expected to begin January 13, 2017. Owners may contact Hyundai customer service at 1-800-633-5151. Hyundai's number for this recall is 153.

Additional source detail variants (2)

Trailer Hitches

Hyundai Motor America (Hyundai) is recalling certain model year 2016-2017 Tucson vehicles manufactured May 19, 2015, to November 14, 2016, and 2017 Santa Fe vehicles manufactured November 28, 2015, to November 14, 2016. The affected vehicles may be equipped with an accessory trailer hitch wiring harness that, due to a malfunction of the tow hitch module, may result, in the trailer brake lights being constantly illuminated. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 108, " Lamps, Reflective Devices, and Associated Equipment."

Consequence: If the trailer brake lights stay illuminated while being used, other drivers may be confused, increasing the risk of a crash.

Remedy: Hyundai will notify owners, and dealers will replace the affected accessory trailer hitch wiring harnesses, free of charge. The recall is expected to begin January 13, 2017. Owners may contact Hyundai customer service at 1-800-633-5151. Hyundai's number for this recall is 153.

Electrical System:wiring

Hyundai Motor America (Hyundai) is recalling certain model year 2016-2017 Tucson vehicles manufactured May 19, 2015, to November 14, 2016, and 2017 Santa Fe vehicles manufactured November 28, 2015, to November 14, 2016. The affected vehicles may be equipped with an accessory trailer hitch wiring harness that, due to a malfunction of the tow hitch module, may result, in the trailer brake lights being constantly illuminated. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 108, " Lamps, Reflective Devices, and Associated Equipment."

Consequence: If the trailer brake lights stay illuminated while being used, other drivers may be confused, increasing the risk of a crash.

Remedy: Hyundai will notify owners, and dealers will replace the affected accessory trailer hitch wiring harnesses, free of charge. The recall is expected to begin January 13, 2017. Owners may contact Hyundai customer service at 1-800-633-5151. Hyundai's number for this recall is 153.

16V628000 · Electrical System:software; Power Train:automatic Transmission:control Module (tcm/pcm/tecm)

Aug 30, 2016

Hyundai Motor Company (Hyundai) is recalling certain model year 2016 Tucson vehicles manufactured May 20, 2015 through May 31, 2016 and equipped with a 7-speed EcoShift Dual Clutch Transmission. Certain driving conditions and high temperatures may cause the vehicle to not move if the accelerator pedal is pressed and released repeatedly.

Consequence & remedy

Consequence: Inability to move the vehicle while in traffic may increase the risk of a crash.

Remedy: Hyundai will notify owners, and dealers will update the Transmission Control Module software, free of charge. The recall is expected to begin on October 28, 2016. Owners may contact Hyundai customer service at 1-855-671-3059. Hyundai's number for this recall is 149.

Additional source detail variants (2)

Electrical System:software

Hyundai Motor Company (Hyundai) is recalling certain model year 2016 Tucson vehicles manufactured May 20, 2015 through May 31, 2016 and equipped with a 7-speed EcoShift Dual Clutch Transmission. Certain driving conditions and high temperatures may cause the vehicle to not move if the accelerator pedal is pressed and released repeatedly.

Consequence: Inability to move the vehicle while in traffic may increase the risk of a crash.

Remedy: Hyundai will notify owners, and dealers will update the Transmission Control Module software, free of charge. The recall is expected to begin on October 28, 2016. Owners may contact Hyundai customer service at 1-855-671-3059. Hyundai's number for this recall is 149.

Power Train:automatic Transmission:control Module (tcm/pcm/tecm)

Hyundai Motor Company (Hyundai) is recalling certain model year 2016 Tucson vehicles manufactured May 20, 2015 through May 31, 2016 and equipped with a 7-speed EcoShift Dual Clutch Transmission. Certain driving conditions and high temperatures may cause the vehicle to not move if the accelerator pedal is pressed and released repeatedly.

Consequence: Inability to move the vehicle while in traffic may increase the risk of a crash.

Remedy: Hyundai will notify owners, and dealers will update the Transmission Control Module software, free of charge. The recall is expected to begin on October 28, 2016. Owners may contact Hyundai customer service at 1-855-671-3059. Hyundai's number for this recall is 149.

16V348000 · Latches/locks/linkages:hood:latch

May 24, 2016

Hyundai Motor Company (Hyundai) is recalling certain model year 2016 Tucson vehicles manufactured May 19, 2015 to March 14, 2016. In the affected vehicles, if the primary hood latch has been released, and the vehicle is driven, the secondary hood latch may not hold adequately secure the hood to prevent it from opening while the vehicle is in motion.

Consequence & remedy

Consequence: If the primary hood latch is inadvertently released and the secondary latch cannot secure the hood, the hood may unexpectedly open while driving, increasing the risk of a crash.

Remedy: Hyundai will notify owners, and dealers will replace the secondary hood latch, free of charge. The recall began on June 30, 2016. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 145.

16V147000 · Exterior Lighting:tail Lights

Mar 10, 2016

Hyundai Motor America (Hyundai) is recalling certain model year 2016 Hyundai Tucson vehicles manufactured May 26, 2015 to January 15, 2016 and equipped with an accessory trailer hitch harness either included with the accessory trailer hitch or sold as a service part. In the affected vehicles, when the vehicle's engine is running and the brake lights are illuminated, if the turn signal is activated, the trailer turn signal lights will either turn off or remain continuously illuminated (not flash). As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard Number 108, " Lamps, Reflective Devices, and Associated Equipment."

Consequence & remedy

Consequence: Failure to illuminate the trailer's turn signal lights would prevent the communication of the driver's intent, increasing the risk of a crash.

Remedy: Hyundai will notify owners, and dealers will update the tow hitch harness, free of charge. The recall began on May 2, 2016. Owners may contact Hyundai customer service at 1-855-371-9640. Hyundai's number for this recall is 142.

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

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.

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