NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
178 reportsMileage unknown · Oct 8, 2024
Fuel/propulsion System
Gas tank replaced three times and failed each installation (excess pressure)leaked gas with riders in car. I was a LYFT driver .YES car can be seen at MAUI HYUNDAI SERVICE DEPT 260 HANA Highway. Kahului, HI. 96732 Car needs another gas tank and Manager at Service Dept tells me there is only one gas tank available, the type we in…
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Gas tank replaced three times and failed each installation (excess pressure)leaked gas with riders in car. I was a LYFT driver .YES car can be seen at MAUI HYUNDAI SERVICE DEPT 260 HANA Highway. Kahului, HI. 96732 Car needs another gas tank and Manager at Service Dept tells me there is only one gas tank available, the type we installed. FARMERS INSURANCE HAS SEEN PHOTOS OF THE BAD GAS TANK. Service department was not aware of this gas tank issue...told me you must have run over some debris (not true) HYUNDAI has received my complaint but not replied yet.Engine warning light came on went off came on Took car to dealer for service
NHTSA ODI #11618701
47,000 miles · Sep 30, 2024
EngineFuel System, Gasoline
The contact owns a 2020 Hyundai Sonata. The contact stated that while driving at an undisclosed speed, there was an abnormal gasoline odor inside the vehicle, after which the vehicle lost motive power. The contact pulled over to the shoulder of the roadway, moved the rear seat, and observed that the fuel pump was protruding upwa…
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The contact owns a 2020 Hyundai Sonata. The contact stated that while driving at an undisclosed speed, there was an abnormal gasoline odor inside the vehicle, after which the vehicle lost motive power. The contact pulled over to the shoulder of the roadway, moved the rear seat, and observed that the fuel pump was protruding upwards. The check engine warning light was illuminated. The vehicle was towed to the dealer, who diagnosed a failure with the purge valve, resulting in damages to the fuel pump and fuel tank. The vehicle was repaired, but the failure reoccurred. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 47,000.
NHTSA ODI #11617260
Mileage unknown · Sep 23, 2024
Fuel/propulsion SystemSeats
I had the check engine light come on about 4 times in my 2020 Hyundai Sonata 1.6L this year in 2024. I took the car to a technician to get looked at each time it came on. The codes and bulletins kept pointing to fuel system issues. Each time, every service tech said it was a small issue and claimed to fix the issues. The final t…
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I had the check engine light come on about 4 times in my 2020 Hyundai Sonata 1.6L this year in 2024. I took the car to a technician to get looked at each time it came on. The codes and bulletins kept pointing to fuel system issues. Each time, every service tech said it was a small issue and claimed to fix the issues. The final time a tech seen it lifted the rear seat and found out that the gas tank expanded and the back seat buckled up. The backseat metal frame is bent and messed up. I was flagged down by several drivers ?that noticed gasoline leaking from my driverside rear. My child and I were in dang? er and had to pull on the side of a major highway and stay several hours until someone picked us up. The problem has been confirmed by the hyuandi service center. They said another vehicle experienced this same issue. I was in fear for my life and my child's life because it could have caught fire and/or exploded.
NHTSA ODI #11616071
Mileage unknown · Sep 7, 2024
Electrical System
Blower motor stopped working. Same issue has now happened on my 2021 Hyundai Sonata Limited. I have been waiting now three months to have my 2020 Sonata to be fixed. Hyundai technician said the wiring harness had a crack and it’s why my 2020 Sonata’s Blower motor stopped working. It’s now three months since they diagnosed and or…
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Blower motor stopped working. Same issue has now happened on my 2021 Hyundai Sonata Limited. I have been waiting now three months to have my 2020 Sonata to be fixed. Hyundai technician said the wiring harness had a crack and it’s why my 2020 Sonata’s Blower motor stopped working. It’s now three months since they diagnosed and ordered the wiring harness but supposedly it’s still on back order and I’m left with a hot car this entire summer and possibly a cold car come this winter. Now it looks like I will have the same issue with my 2021 Hyundai Sonta Limited leaving me with two cars without A/C or Heat.
NHTSA ODI #11613235
Mileage unknown · Sep 5, 2024
Fuel/propulsion System
There is an issue with the 2020+ Hyuandai sonatas and Kia K5 models. The valves in my gas tank had failed. Causing pressure and gas vapors to be trapped inside the tank. The pressure in my tank has swollen my gas tank to the point where it’s bent the metal frame underneath my backseat, lifting my backseat off its base. My car is…
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There is an issue with the 2020+ Hyuandai sonatas and Kia K5 models. The valves in my gas tank had failed. Causing pressure and gas vapors to be trapped inside the tank. The pressure in my tank has swollen my gas tank to the point where it’s bent the metal frame underneath my backseat, lifting my backseat off its base. My car is a literal tricking time bomb because the tank will eventually burst. There’s also a strong smell of gas coming from underneath the backseat. There’s been a new story on this issue already. Kia has acknowledged the issue and did recalls. Hyundai has not. Many owners of the Sonata are having this same exact issue according to Reddit posts. I took my vehicle to the dealer, got it diagnosed, was quoted $2900+. I was told it was an extreme safety hazard due to the pressure in the tank and the gas leak. The tank has swollen so much that it’s pressing against the exhaust. I’m out of warranty and they expect me to pay out of pocket. I have no where near $3000. I use my car for work and have no choice but to drive it. Please help.
NHTSA ODI #11612913
Mileage unknown · Aug 31, 2024
Fuel/propulsion System
(August 29th) My girlfriend and I were driving in my 2020 Sonata, when the check engine light turned on and my gas gauge dropped from being full to then only half way. About an hour later, driving back home we heard a loud pop as if something exploded. Next day, I took my car to the Autonation Hyundai dealership and after taking…
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(August 29th) My girlfriend and I were driving in my 2020 Sonata, when the check engine light turned on and my gas gauge dropped from being full to then only half way. About an hour later, driving back home we heard a loud pop as if something exploded. Next day, I took my car to the Autonation Hyundai dealership and after taking a look at my car they quoted me about $6,000 to get my fuel tank and charcoal canister replaced. Our safety was put at risk due to the fact that had the damage been any worse, it could have caused the car to possibly explode or give out while driving on the highway, and in turn would put many more lives at risk.
NHTSA ODI #11611960
Mileage unknown · Aug 28, 2024
Fuel/propulsion System
Gas tank is swelling causing the rear seats to pop up
NHTSA ODI #11611435
Mileage unknown · Aug 28, 2024
Electrical SystemVisibility/wiper
Improperly seated strip fuse High Resistance Connection on the IG-2 40amp blower motor fuse receptacle causing melting of plastic fuse box components and ultimately failure of blower motor circuit and potentially loss of other circuits. Loss of blower motor leads to loss of cabin HVAC as well as loss of front windshield defrost …
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Improperly seated strip fuse High Resistance Connection on the IG-2 40amp blower motor fuse receptacle causing melting of plastic fuse box components and ultimately failure of blower motor circuit and potentially loss of other circuits. Loss of blower motor leads to loss of cabin HVAC as well as loss of front windshield defrost ability during adverse driving conditions. Not only does this pose a potential electrical fire hazard, but a safety hazard due to inability to clear windshield from loss of defrost feature. Brief research finds this to be a very common problem with these vehicles. Manufacturer's recommendation is complete replacement of engine bay wiring harness. Problem begins as intermittent, but leads to total circuit failure over time if not identified.
NHTSA ODI #11611414
47,000 miles · Aug 21, 2024
Structure
The contact owns a 2020 Hyundai Sonata. The contact stated that upon exiting the vehicle during a rainstorm, she became aware that water had filled the interior of the rear driver's side door panel, which began to leak when the door was open. No warning lights were illuminated. The vehicle was taken to the dealer, who was unable…
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The contact owns a 2020 Hyundai Sonata. The contact stated that upon exiting the vehicle during a rainstorm, she became aware that water had filled the interior of the rear driver's side door panel, which began to leak when the door was open. No warning lights were illuminated. The vehicle was taken to the dealer, who was unable to determine how the water was entering the door panel. The vehicle was not repaired. The manufacturer was notified of the failure, and a case was opened. The failure mileage was 47,000.
NHTSA ODI #11610090
Mileage unknown · Aug 19, 2024
Fuel/propulsion SystemSeatsUnknown Or Other
Took a trip to Nashville so I left Memphis Saturday morning hole on the road heading to Nashville I was at least 30 minutes fork the city my car began to jerk very bad suddenly my file light came on so I stopped at a gas station the file light came on telling me I needed gas the had was on the E but my mileage to e said 117miles…
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Took a trip to Nashville so I left Memphis Saturday morning hole on the road heading to Nashville I was at least 30 minutes fork the city my car began to jerk very bad suddenly my file light came on so I stopped at a gas station the file light came on telling me I needed gas the had was on the E but my mileage to e said 117miles. So I was like ok that’s weird after I put gas in my car I got back on the road my gas hand went from full to half way and I was not even on the road for 40 minutes so as we get closer to Nashville my car starts jerking very bad I hear a noise that sounded like a bag or a piece of paper being crumbled up I turn around to find my rear seat up in the air I knew it was not normal at all looks like it was a lot of pressure for the frame of a car to stand up like that I definitely knew something was wrong when that happened I instantly started to smell gas very loud smell of gas I then start to do my research and I see Kia’s and Hyundais are dealing with gas tank expansions so at this point I am scared for my life I’m in my car and I’m dealing with a issue like this. I instantly call my dealership and schedule to have my car towed to the dealership out in Nashville. They called me that Monday confirming the gas take had expanded and caused a significant amount of floor damage to my vehicle I am currently waiting trying to see what is Hyundai going to do about this issue that is my only transportation and having to deal with this then find another way back home has been very stressful and just to know that I could have lost my life in that car is even more traumatic
NHTSA ODI #11609395
Official recalls
4Nov 17, 2025
Hyundai Motor America (Hyundai) is recalling certain 2020-2023 Sonata vehicles. A damaged check valve can allow air to enter the fuel tank, causing it to expand and contact hot exhaust components, melting the tank.
Consequence & remedy
Consequence: A melted fuel tank can leak, increasing the risk of a fire.
Remedy: Dealers will inspect and replace the check valve. The fuel tank assembly will be inspected for damage and replaced if necessary. Additionally, dealers will inspect and update the engine control unit software. All repairs will be performed as necessary, free of charge. Owner notification letters were mailed beginning March 13, 2026. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 286. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on November 19, 2025.
Mar 28, 2022
Hyundai Motor America (Hyundai) is recalling certain 2020 Sonata and Sonata Hybrid, and 2019 Genesis G70 vehicles. The trunk latch may become damaged, preventing the opening of the trunk from the inside. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 401, "Internal Trunk Release."
Consequence & remedy
Consequence: A person inside the trunk compartment may become trapped, increasing their risk of injury.
Remedy: Dealers will inspect the trunk latch and replace the trunk latch base, as necessary, free of charge. Owner notification letters were mailed May 26, 2022. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 221/010G.
Apr 9, 2020
Hyundai Motor America (Hyundai) is recalling certain 2020 Nexo and Sonata vehicles. The Remote Smart Parking Assist (RSPA) software may fail to prevent vehicle movement upon detection of an RSPA system malfunction.
Consequence & remedy
Consequence: Unintended vehicle movement increases the risk of a crash.
Remedy: Hyundai will notify owners, and dealers will reprogram the RSPA software, free of charge. The recall began June 3, 2020. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 191.
Feb 28, 2020
Hyundai Motor America (Hyundai) is recalling certain 2020 Sonata vehicles produced between October 22, 2019 and February 13, 2020. The tire pressure label inside the driver's door and the owner's manual state an incorrect tire size. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 110, "Tire Selection and Rims."
Consequence & remedy
Consequence: The incorrect tire information may mislead the vehicle owner to install the wrong tire size, potentially affecting vehicle handling, increasing the risk of a crash.
Remedy: Hyundai will notify owners, and dealers will install new label stickers over the tire pressure label and in the owner's manual, free of charge. The recall began April 22, 2020. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 190.
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
1DP22003 · 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.