2020 Hyundai Sonata

My vehicle while driving, it is jerking and shaking. When I come to a stop, the cars rpms go up and down while the car is shaking. When I pressed the gas pedal to accelerate the car will not accelerate as normal and the car jerks as I’m driving it. The RPMs rev up and down without any pressure placed on the gas pedal. The check engine light came on.The miles per hour only allows me to put one digit. I wanted to clarify that the problem is occurring anywhere between 0 mph to 65 mph when these the car jerks and shakes and the RPMs go up and down without me pressure on the gas pedal.

Reported

Jul 2026

Incident date

Jul 2026

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2020 Hyundai Sonata. The contact stated that while driving at an undisclosed speed, the low oil warning light illuminated. The contact added oil to the engine. The dealer was made aware of the failure. The vehicle was taken to the dealer several times, and several oil consumption tests were performed. The contact was informed that the oil consumption test results did not indicate excessive oil consumption. The failure reoccurred. The vehicle was taken to the dealer, and the contact was informed that the oil level was a half quart low. The contact was informed that no repair options were available. The manufacturer was not made aware of the failure. The failure mileage was approximately 80,000.

Reported

Jul 2026

Incident date

Mar 2026

Mileage

Not provided

Outcome flags

None reported

The seat belt latches do not latch or will spontaneously unlatch. This has been a problem for about 4 years. I have checked for recalls and not seen any for my car. I will check with the dealer but have tried vacuuming the latches without effect. I have never experienced anything like this in any previous vehicle. The warning buzzer lets me know when the seatbelt unlatches, but I seriously doubt the belt would hold in case of an accident.

Reported

Jul 2026

Incident date

Jul 2022

Mileage

Not provided

Outcome flags

None reported

No air coming from cabin, upon further inspection found melted multifuse with melting terminal pin area in fuse box. No prior signs of warning, leaving vehicle without operable air condition for high temperatures.

Reported

Jun 2026

Incident date

Jun 2026

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2020 Hyundai Sonata. The contact stated that while driving at an undisclosed speed with the family inside the vehicle, a strong gasoline odor was inside the cabin of the vehicle. The contact stated that the fuel gauge was lowering quickly. Upon exiting the vehicle, the contact became aware of gasoline gushing heavily out of the vehicle onto the ground. Two months prior to the failure, the vehicle was taken to an authorized dealer due to an abnormal sound coming from the rear of the vehicle. The contact received notification of NHTSA Campaign Number: 25V796000 (Fuel System, Gasoline); however, the recall repair was not performed because the part for the recall repair was not yet available. The vehicle was towed to a dealer where it was determined that the gas valve was not properly fixed. The abnormal sound in the rear of the vehicle was due to the fuel expansion, which caused the tank to rupture and melt. The melting caused the fuel pump to expand and melt, causing structural damage to the body of the vehicle. The structural expansion caused the rear passenger seats to raise up. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 89,000.

Reported

Jun 2026

Incident date

Jun 2026

Mileage

Not provided

Outcome flags

None reported

My 2020 Hyundai Sonata 2.5L is experiencing excessive engine oil consumption. At approximately 88,063 miles, Great Lakes Hyundai documented that the engine oil level was 1.30 quarts below full after an oil-consumption check. The dealer topped off the oil, submitted photos and a prior-authorization/goodwill request to Hyundai, and Hyundai declined assistance. The dealer recommended combustion chamber cleaning with an estimate of $979.76. I am concerned that this excessive oil consumption could lead to sudden engine damage, loss of power, stalling, or engine failure if the oil level drops between checks. The vehicle is only a 2020 model year, and this level of oil consumption appears abnormal. I am also concerned about possible emissions/catalytic converter damage from oil burning.

Reported

Jun 2026

Incident date

May 2026

Mileage

Not provided

Outcome flags

None reported

Hyundai Motors America has failed to comply with its statutory obligations in conducting the recall campaign 25V796, and is instead engaging in behavior substantially similar to that which has been previously censured by NHTSA. My Sonata suffered irreparable damage related to this campaign as confirmed by HMA. 49 U.S.C. § 30120(a)(1)(A) allows HMA to choose one of three remedies: repair, replacement, or refund. However, they 1) say it cannot be safely repaired, 2) will not replace it, and 3) are not offering a repurchase as required by statute, i.e. "by refunding the purchase price, less a reasonable allowance for depreciation." Instead, Hyundai's case manager Aditya informed me on 5/29/2026 at 12:57 PM that they will make a repurchase offer "based on the Kelly Blue Book value." I protested and cited the statute, but he maintained that Hyundai has their process and subsequently gave an unconscionably low offer that was not based on any reasonable measure of depreciation. I insisted on a reasonable, defensible calculation. I proposed 1) using the state formula for calculating reasonable depreciation as applied in both Texas and California (HMA and my home states), or 2) using actual market values (of which I have tangible data) to determine the actual market loss in value. Hyundai has rejected both of these reasonable proposals in favor of an arbitrary formula that would leave me with thousands of dollars in lost value. On June 9, 2026, when I pressed Executive Case Manager Jenifer for an explanation of their proposed depreciation formula, she only stated that "it’s a standard calculation across the board" and that it applies "regardless of state" and they "will not change it." The NHTSA discussed this behavior in its Final Order and Determination against Fiat in Federal Register Vol. 45 No. 7, and endorsed a "reasonable" model similar to my proposal #2 above. It found Fiat non-compliant for its behavior which had a nearly similar impact.

Reported

Jun 2026

Incident date

Apr 2026

Mileage

Not provided

Outcome flags

None reported

For my vehicle the Check Engine light has been on continuously throughout the last 6 months and mechanics are going to have to replace the thermostat. Multiple auto mechanics have indicated online that this is a very common problem with many Hyundai vehicles from 2020-2023 and can be a danger due to temperature control not being accurate for vehicles (Code P2181). Many owners of these Hyundai vehicles have experienced this issue leading online and this issue should be made aware to Hyundai and the general public to see if this is something that needs to be made aware for the safety of drivers to determine if their vehicle is at an accurate temperature.

Reported

Jun 2026

Incident date

Jun 2026

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2020 Hyundai Sonata. The contact received notification of NHTSA Campaign Number: 25V796000 (FUEL SYSTEM, GASOLINE). The contact stated that while driving 60 MPH, the vehicle was leaking fuel from the fuel tank. There was no warning light illuminated. The dealer was contacted and notified of the failure, and the vehicle was repaired. The contact stated that the failure was a recurring failure. The manufacturer was notified of the failure. The failure mileage was approximately 108,000.

Reported

Jun 2026

Incident date

Jul 2025

Mileage

Not provided

Outcome flags

None reported

2020 Hyundai Sonata SEL Plus, VIN [XXX] . A/C system fails due to refrigerant leak that empties the system completely within 1-2 weeks of recharge. Leak cannot be located through standard external inspection. First noticed reduced cooling summer 2025. Driver's side loses cooling first, then passenger side fails days later — pattern consistent with evaporator core leak in dual-zone system. In September 2025, independent shop found system completely empty, recharged it, and attempted leak detection but could not locate source. Approximately two weeks later, system was empty again. Shop still unable to find leak. Symptom pattern — rapid total refrigerant loss, asymmetric failure (driver side before passenger), no externally detectable leak — points to evaporator core, which is enclosed in the HVAC housing behind the dashboard and invisible during standard inspection. Vehicle has 50,125 miles, still under the 60,000-mile warranty limit after 6+ years. Low-use vehicle averaging under 8,000 miles/year. 5-year calendar warranty expired approx. Jan 2025; issue first documented Sept 2025, only 8 months later. Defect was almost certainly present before warranty expiration. A class action investigation is underway (XXX) for premature A/C failures in 2018-2022 Sonata, Elantra, Palisade, Santa Fe, and Tucson vehicles. Loss of A/C in Texas climate poses risk of heat illness to occupants, especially children. This component should not fail at under 50,000 miles. Original lessee and purchaser; vehicle well maintained. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Reported

May 2026

Incident date

Apr 2025

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2020 Hyundai Sonata. The contact stated while driving at various speeds, the vehicle experienced phantom braking and nearly came to a complete stop. The contact stated that the automatic emergency braking system unexpectedly engaged while there were no roadway obstacles or vehicles near the vehicle. The vehicle was taken to the dealer, who informed the contact that they would need to verify whether the repair would be covered under the active warranty. The vehicle was not yet diagnosed or repaired. The manufacturer was not yet contacted. The failure mileage was approximately 2,000.

Reported

May 2026

Incident date

May 2022

Mileage

Not provided

Outcome flags

None reported

See attached document for complaint.

Reported

May 2026

Incident date

Apr 2026

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2020 Hyundai Sonata. The contact stated that the fuel failed to go into the tank. The seat failed to move. The engine light illuminated. The vehicle stalled. While driving, the fuel gauge went from full to empty. The contact received the NHTSA Campaign Number: 25V796000 (Fuel System, Gasoline) after the failure. The vehicle was towed to the local where it was diagnosed that the fuel tank had expanded. The vehicle was repaired approximately eight months later. The contact called another local dealer. Ourisman Hyundai Bowie, 2404 Crain Hwy A, Bowie, MD 20716, who was unable to schedule an appointment. The manufacturer instructed the dealer to keep the vehicle due to it being a fire risk. The manufacturer was contacted regarding a buyback. The failure mileage was approximately 80,000.

Reported

May 2026

Incident date

Oct 2024

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2020 Hyundai Sonata. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to an independent mechanic, who retrieved a diagnostic trouble code for the check valve. The mechanic related the failure to NHTSA Campaign Number: 25V796000 (Fuel System, Gasoline), associated with the VIN; however, the contact had not received notification of the recall. The vehicle was then taken to the dealer, who determined that the check valve had failed and the fuel tank was deformed. The contact was referred to the manufacturer. The vehicle was not repaired. The manufacturer was made aware of the failure, and a case was filed. The manufacturer offered to buy back the vehicle, but the contact declined the offer. The failure mileage was approximately 82,000.

Reported

May 2026

Incident date

Apr 2026

Mileage

Not provided

Outcome flags

None reported

NHTSA Complaint Statement Subject: Stop‑Drive Recall – Vehicle Held Since March 5, 2026 – No Remedy, No Transportation, Buyback Delayed I am filing a complaint regarding a stop‑drive safety recall that has left me without access to my vehicle since March 5, 2026, and the manufacturer has not provided a timely remedy, transportation assistance, or a completed buyback. My vehicle has been at the dealership since March 5 due to a manufacturer-issued stop‑drive recall. The dealership has confirmed they cannot legally release the vehicle because of the stop‑drive order. The vehicle is not repairable at this time, and the manufacturer initiated a buyback process. However, the manufacturer has been extremely slow to communicate or complete the buyback. Despite multiple attempts to contact them, I have not received a clear timeline, and the process has stalled. I have also not been provided with a loaner vehicle or consistent rental reimbursement, even though the stop‑drive order prevents me from using my car. Because of the delay, I am now facing financial hardship, including a past‑due car loan on a vehicle I cannot legally drive and cannot retrieve. I am effectively without transportation and without a remedy. I am requesting NHTSA’s assistance because the manufacturer has not met its obligations to provide a timely remedy or adequate support for a stop‑drive recall that has removed my vehicle from service for an extended period.

Reported

Apr 2026

Incident date

Mar 2026

Mileage

Not provided

Outcome flags

None reported

The AC Evaporator core is leaking. Known issue amongst these vehicles.

Reported

Apr 2026

Incident date

Apr 2026

Mileage

Not provided

Outcome flags

None reported

Vehicle subject to NHTSA Recall 25V796000 (fuel system defect). In July 2025, while driving, a loud explosive sound came from the rear of the vehicle followed by raw gasoline fumes entering the cabin. Vehicle was towed to a Hyundai dealership and held approximately 120 days before being returned as repaired. In December 2025, the exact same defect recurred. A third-party diagnostic scan (performed before drop-off) confirmed DTC Code P14EE — Fuel Tank Check Valve / Evaporative Purge System failure — directly related to the recall. The vehicle was held an additional 110+ days while the dealer awaited a new remedy from the manufacturer. Total days out of service: 230+. The recall repair has now failed twice. The safety defect was never successfully corrected after a reasonable number of attempts. The vehicle is currently being withheld by the dealership pending an unrelated disputed repair charge.

Reported

Apr 2026

Incident date

Jul 2025

Mileage

Not provided

Outcome flags

None reported

It was smoking from the engine, I immediately stopped the vehicle. My safety was put at risk immediately while being in the vehicle when the air bags deployed hitting me in the face and causing my face to swell. The safety of others was put at risk due to others being right next to me and putting others at risk of engine blowing up. Yes, the vehicle has been inspected by police. There were no warning signs on the vehicle.

Reported

Mar 2026

Incident date

Feb 2026

Mileage

Not provided

Outcome flags

Fire 1 injuries

The back up camera sometimes is only a black screen, it is random and has done it in all sorts of weather. Usually is corrected when vehicle is started next.

Reported

Mar 2026

Incident date

Mar 2026

Mileage

Not provided

Outcome flags

None reported

I have had my car since January of 2023 and I have had no significant issues. I bought the car with roughly 30,000 miles, fast forward to February of 2026 it has about 123,000 miles and the engine is burning oil very fast. My car loses oil so fast the oil light comes on way early before my next oil change is due.

Reported

Feb 2026

Incident date

Feb 2026

Mileage

Not provided

Outcome flags

None reported

On 2/19/2026 while driving, my 2020 Hyundai Sonata Limited 1.6T began making several loud explosive / popping sounds. At the same time, the fuel gauge on the display screen appeared to rapidly drop, as if the vehicle was losing gas. Immediately following this, the vehicle began to hesitate and lose power while accelerating. The hesitation felt like the engine was misfiring or struggling to maintain consistent performance. There were multiple explosive sounds before and during the hesitation. This created a major safety concern while driving and the vehicle underwent an inspection at Hyundai in Deland, FL. The service department was brief and stated they needed to keep the vehicle for repair for an unknown amount of time as the fuel tank expanded. No further information was provided at that time.

Reported

Feb 2026

Incident date

Feb 2026

Mileage

Not provided

Outcome flags

None reported

White pain is pealing off and it’s pretty bad especially when going through car wash

Reported

Feb 2026

Incident date

Jan 2026

Mileage

Not provided

Outcome flags

None reported

Rear camera doesn’t work and is just a black screen. It started out intermittent and now doesn’t work at all.

Reported

Feb 2026

Incident date

Feb 2026

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2020 Hyundai Sonata. The contact received notification of NHTSA Campaign Number: 25V796000 (FUEL SYSTEM, GASOLINE); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure.

Reported

Feb 2026

Incident date

Nov 2025

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2020 Hyundai Sonata. The contact stated that while attempting to start the vehicle, the vehicle failed to start. The battery and the key warning lights were illuminated. The contact stated that after several attempts, the vehicle started. The vehicle was driven to the end of the driveway and turned off. The contact was afraid of driving the vehicle due to the failure. The independent mechanic was made aware of the failure. The contact was informed of an open recall. The dealer was made aware of the failure and confirmed the open recall information. In addition, the contact was advised that the failure might be because of the unrepaired recall. The contact was advised to bring the vehicle in for diagnostic testing. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The contact received notification of NHTSA Campaign Number: 25V796000 (Fuel System, Gasoline); however, parts for the recall repair were not yet available. The failure mileage was approximately 42,947.

Reported

Feb 2026

Incident date

Feb 2026

Mileage

Not provided

Outcome flags

None reported

My vehicle was at a manufacturer‑authorized dealership for a federally mandated recall repair. While the vehicle was in the dealership’s exclusive care, custody, and control, it was struck by a third‑party cleaning vendor operating on dealership property and was declared a total loss. I did not hire or authorize this vendor. After the incident, the manufacturer informed me in writing that the dealership would repair the damage at their own expense, separate from the recall work. The manufacturer also stated they were covering the recall‑related repairs and were coordinating with the dealership. They provided weekly updates, monitored the recall repair, and escalated a backordered recall part. Later, after the dealership confirmed the vehicle was a total loss, the manufacturer reversed its position and stated it was “not involved.” The dealership has refused to identify the cleaning company responsible for the loss, their insurer, or any claim information, preventing any direct follow‑up. The manufacturer continues to direct me to “work with the parties involved,” even though the responsible vendor has not been disclosed. This raises concerns about the safety and oversight of the recall repair process, the handling of vehicles during recall service, and the manufacturer’s response when a vehicle is destroyed during a recall procedure.

Reported

Jan 2026

Incident date

Jul 2025

Mileage

Not provided

Outcome flags

Crash

I have taken my vehicle to a certified Hyundai dealership multiple times due to intermittent starting issues. The car will unlock remotely, and the lights and electrical components will turn on, but the engine will not start. When this happens, I press the ignition button to turn the vehicle off and then try again. Sometimes it eventually starts, but there have been several occasions when it would not start at all, forcing me to call for a tow or have the battery jumped. This issue occurs most often in cool or cold weather. I had a brand new battery installed at the dealership in July 2025, yet the problem has continued. I have been dealing with this for over a year and have even been stranded out of state in below-freezing temperatures. Each time I bring the vehicle in, the dealership states they are unable to replicate the issue while it is in their service department.

Reported

Jan 2026

Incident date

Jan 2026

Mileage

Not provided

Outcome flags

None reported

While stopping at a major highway intersection on [XXX] for a red light vehicle stalls and will not start back up while everyone else continues at a 55 mph mile an hour passing me on each side! This happened more than 6 times . While you’re stuck in intersection,you have to keep trying to start the car eventually it will start . Apparently it is EGR valve and is a very common problem. IT IS NOTED IN THE common problem for this year making model and the repair cost is in the range of $1600 even the dealership said it is a very common problem. They have been experiencing it. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Reported

Dec 2025

Incident date

Oct 2025

Mileage

Not provided

Outcome flags

Crash

I own a 2020 Hyundai Sonata with factory-applied paint. The vehicle developed paint peeling/clear-coat failure on the driver-side rear quarter panel without any prior damage, accident, or repainting. The paint began separating from the body, exposing the underlying surface. I brought the vehicle to an authorized Hyundai dealer. The dealer acknowledged a paint adhesion failure and submitted the issue to Hyundai. Hyundai declined to fully cover the repair, stating the model year was not included in their paint warranty extension, even though similar peeling paint defects have been acknowledged and covered by Hyundai on earlier Sonata model years. The dealer ultimately repainted both rear panels due to the nature of the failure, but Hyundai required me to pay approximately 20% of the repair cost as a goodwill arrangement. I was not offered a full repaint or full reimbursement. I have also observed early signs of potential paint adhesion issues around the rear window frame, raising concern that the defect may progress to other areas of the vehicle. This appears to be a manufacturing paint adhesion defect rather than normal wear, and similar issues have been widely reported on Hyundai vehicles. I am reporting this issue to document a recurring paint adhesion defect on the 2020 Hyundai Sonata and to assist in identifying a potential pattern affecting additional vehicles.

Reported

Dec 2025

Incident date

Nov 2025

Mileage

Not provided

Outcome flags

None reported

My 202 Hyundai Sonata is involved in the current hyundai fuel system recall. on 10/26/25 the fuel tank expanded and caused three explosive "boom" sounds inside the vehicle while I was driving with passengers. The backseat began heating and rising upward due to fuel tank swelling. The tank became pressurized, hissing, bubbling, and would not accept fuel. The vehicle became inoperable. The car has now been at hyundai of camelback since 10/27/25 (30 days). Hyndai Corporate has repeatedly delayed providing a remedy and keeps telling me they "need another week". I have received no repair plan, and no decision. This violates the requirement for a timely recall remedy. The defect caused structural damage and created a serious safety hazard. "

Reported

Dec 2025

Incident date

Oct 2025

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2020 Hyundai Sonata. The contact stated that while the vehicle was parked, the vehicle failed to start as intended. The contact stated that several unknown warning lights were illuminated. The contact stated that the vehicle eventually started and drove normally. The vehicle was then taken to an independent mechanic, where it was diagnosed and determined that the starter needed to be replaced. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was 27,000.

Reported

Nov 2025

Incident date

Nov 2025

Mileage

Not provided

Outcome flags

None reported

Coolant is leaking again after being fixed at a Hyundai dealer. If I don't fix it, my car will overheat and catch fire in the middle of a public road. My warranty has now expired, so I'll have to pay for the repairs myself. However, this problem is a design flaw, not related to the car's age or mileage. Hyundai should fix this problem. I'm not the only one; there are a lot of people complaining about this.

Reported

Nov 2025

Incident date

Oct 2025

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2020 Hyundai Sonata. The contact stated that while reversing, the back-over prevention camera malfunctioned, and there was no image of the rear of the vehicle displayed. The contact stated that the display screen only displayed lines. The contact stated that the failure caused a visibility hazard for the driver. The vehicle was examined by an independent mechanic who determined that the camera was faulty and needed to be replaced. The vehicle was not yet repaired. The local dealer and manufacturer were not notified of the failure. The failure mileage was 130,000.

Reported

Oct 2025

Incident date

Dec 2024

Mileage

Not provided

Outcome flags

None reported

Wiring harness under fuse box is not making a consistent connection and is causing the blower amp to overheat and disconnect. When this happen, cabin air doesn’t blow and the front and rear defrost stops working. The only way to make the blower engage is by removing the fuse box cover and tapping the 30 amp fuse things. I’ve taken my car to the dealership for this specific problem 5 separate times, and it was supposed to be corrected. Due to this poor connection, I am now about $1200 into repairs / replacing parts that aren’t the root cause. I am not taking my car back to the dealership for a 6th time to have it “fixed” but the service guy looked me in the face and said “you should trade it. We see this issue all the time in sonatas and elantras. It won’t be fixed”. I’ve replaced the blower motor, had the Freon charged, this is one of the vehicles with the exploding gas tank, and I’ve already paid to replace gaskets.

Reported

Oct 2025

Incident date

Apr 2025

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2020 Hyundai Sonata. While the contact's wife was reversing, the back over prevention camera system displayed a black screen. The dealer was made aware of the failure. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The contact referenced an unknown recall with a similar failure; however, the VIN was not associated. The manufacturer was made aware of the failure and a case was filed. The failure mileage was approximately 46,000.

Reported

Sep 2025

Incident date

Sep 2025

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2020 Hyundai Sonata. The contact stated that the vehicle hesitated while depressing the accelerator pedal, with the check engine warning light illuminated on the instrument panel. The vehicle was taken to several independent mechanics and dealers to be diagnosed; however, the cause of the failure was not determined. The contact stated that one mechanic replaced an unknown sensor, but the failure returned soon after the repair. The manufacturer was notified of the failure. The vehicle was not repaired. The failure mileage was approximately 101,000

Reported

Sep 2025

Incident date

Jun 2025

Mileage

Not provided

Outcome flags

None reported

In early May 2025 while driving around 40mph, I heard a very loud pop which startled me. Pulled over and looked back and noticed my backseats were push up out of place. I attempted to put the seat back into place but it wouldn’t fit into the latch anymore. The framing underneath the seats looked pretty damaged so I took it to a local mechanic. After doing some research, he found information for a check valve/fuel tank recall (Service Campaign 9B1) and then advised me to go a Hyundai dealership. I attempted to take it to the dealership, whom sent me away after I advised them of what happened. I came back the next day asking them to take a look at while informing them about the recall that could be related. Later that evening, they called and said the issue was directly related to the recall and the repairs would be covered. My car was in their possession for from 5.12.25 to 7.25.25 without any updates or instructions on what is happening. I was told they’re waiting to hear back from Hyundai Manufacturer on how to proceed. They returned my car to me on 7.25.25 stating everything was repaired. On 7.31.25 they called me back stating my tank needs to be replaced and bring the car back asap. My car was again being repaired and was returned to me on 8.25.25. Now my vehicle will not start randomly sometimes. At this point, I’m under the impression my vehicle is no longer safe as all the issues I’ve been facing are fuel related.

Reported

Sep 2025

Incident date

May 2025

Mileage

Not provided

Outcome flags

None reported

My certified pre-owned 2020 Hyundai Sonata has experienced the same critical transmission failure three times since October 2024, creating dangerous safety conditions on highways and city streets. Component/System Failed: Transmission control system with consistent P0768 error code (Shift Solenoid D Circuit Fault). Safety Risks: The transmission failures cause sudden power loss and inability to accelerate while driving, including on highways at speed. This creates immediate danger to myself, passengers, and other drivers when the vehicle unexpectedly loses power during traffic situations requiring acceleration or merging. Problem Reproduction: The failure has been confirmed and reproduced by authorized Hyundai dealership three separate times: - [XXX]: P0768 error, replaced shift control solenoid valve - [XXX]: Same P0768 error returned, replaced entire transmission control unit - [XXX]: Same P0768 error again, replaced complete control wiring harness with extensive dashboard removal Warning Signs: Each failure was preceded by transmission hesitation, rough shifting, and check engine light activation before complete power loss occurred. Manufacturer Inspection: Hyundai technical assistance case #[XXX] was opened for the third failure, acknowledging the recurring nature of this defect despite multiple repair attempts. Assessment: This appears to be a systematic manufacturing defect in the transmission control system affecting safety. Despite three different repair approaches by Hyundai, the identical P0768 error continues to recur, suggesting a fundamental design or manufacturing flaw that creates ongoing safety risks for drivers. The vehicle was out of service for 44 total days across these three incidents, indicating the severity and complexity of this recurring safety defect. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Reported

Aug 2025

Incident date

Feb 2025

Mileage

Not provided

Outcome flags

None reported

The ac blower keeps going out I looked it up and a lot of people are having the same problem my ac keep having to buy blowers and they last 1 week before they stop working and they are not cheap my blower keeps going out and my electric in my car keeps messing up when I try to put the ac up it goes up then goes down I don’t know what’s wrong but I looked it up and a lot of people have the same problem

Reported

Aug 2025

Incident date

May 2025

Mileage

Not provided

Outcome flags

None reported

Without warning, symptoms of the A/C blower not working first occurred a little over a month ago. The fan just stopped blowing altogether (no cold or hot air). After turning the car and the A/C system on and off several times, it began working again and that was it. This past week, the same issue occurred intermittently over 3-4 days. The A/C blower did not come on for a day, the next morning it was functioning, that evening it stopped blowing again, and this went on for several days. Research of the symptoms via YouTube and many online forums, and most importantly confirmation through visual inspection of the fuse box, confirmed that the BLOWER fuse is burning so bad it has melted the connecting port in the fuse box. Whatever the electrical malfunction, the fuse burning and melting is disrupting the connection and ultimately the A/C blower itself. In the dead of such a hot and humid summer, it has been insufferable having to ride around with such inconsistent and intermittent air conditioning.

Reported

Aug 2025

Incident date

Jul 2025

Mileage

Not provided

Outcome flags

None reported

Whille driving back to Washington state my car check engine light came on and the car shut off while I was driving. I had to have it towed to the nearest city whi ch was Laramie Wyoming. There is no Hyundai dealer had to drive the car once it started back up to Cheyenne Wyoming it was checked. My on star told me there was a problem DTC P0145100 the status had red triangle the DTC power system powertrain and the DTC sub system EMS. I was told and given paperwork by the dealer and was told the car would need major repairs and could take up to 21 days once the work started it would have to he completed there because Hyundai had campaign dealing with my cars problem. I was told I could drive the car home but if the check engine light is flashing pull over immediately. My car is now at the 3rd dealer when I took it to Korum in Puyallup they did not have anyone to diagnose the vehicle only update onboard computer. They said and documented nothing was wrong with the vehicle which is inaccurate. I told Korum about the paperwork from the dealer in Cheyenne they did not so much as look at it. I took the car to the Dealership in Auburn Washington they to had the same findings as Wyoming also there was additional findings which corresponded with the smell of gas and my tank going empty after filling and trying to fill tank because was showing low fuel warning. Pictures were taken of the gas tank which had expanded as well as other pictures of the findings. I was told in Wyoming and Auburn that the code and findings are consistent with the Hyundai campaign

Reported

Jul 2025

Incident date

Jun 2025

Mileage

Not provided

Outcome flags

None reported

The HVAC blower motor and related electrical components (including the fuse box, wiring harness, or control module) have malfunctioned. The system either fails to operate entirely or works only on low, with unpredictable surging airflow. These components are still installed in the vehicle and available for inspection upon request. For the past five days, my family has been driving without a functioning air conditioner in extreme Oklahoma summer heat. This is not only uncomfortable but unsafe, especially for my young child who regularly rides in the vehicle. In addition, without reliable airflow, we are unable to defog the windshield in humid conditions, which significantly reduces visibility and increases the risk of a crash. The inability to regulate cabin temperature and airflow poses a serious safety hazard. Yes, the issue has been observed by the dealership during service visits. However, Hyundai has denied goodwill repair assistance and has not formally acknowledged the defect, despite Technical Service Bulletins and numerous similar reports from other owners. Yes, the vehicle has been inspected by an authorized Hyundai dealership as part of a multi-point inspection. No warning lamps or dashboard messages appeared. However, symptoms began nearly a month ago and have persisted, including intermittent blower operation, limited airflow regardless of settings, and occasional surging. While I have not personally noticed a burning smell, I’ve found numerous reports from other 2020–2021 Sonata owners describing complete blower failure and smoke smells, often tied to fuse box or electrical issues.

Reported

Jul 2025

Incident date

Jun 2025

Mileage

Not provided

Outcome flags

None reported

Something went wrong in the fuel tank that caused it to become so pressurized that the tank expanded up and out so far that it pushed the exhaust pipe down and my back seat of out place. The only issue I had was the car was accelerating slower than usual but it wasn’t even enough of a difference for someone who didn’t drive it every day to be able to tell. It did this for two days then the check engine light came on and it just read “powertrain”. Began slow acceleration on 06.08.2025. Check engine light came on the night of 06.09.2025. I took it to the dealership 06.10.2025. I immediately took it into the dealership and they told me the car could have exploded. There was a previous recall for the fuel pump that I had replaced at the dealership. After seeing my car, they said their techs and the techs at HMA have never seen one this bad and that maybe after replacing the recall part the system update failed in my vehicle and the issue was never actually resolved.

Reported

Jul 2025

Incident date

Jun 2025

Mileage

Not provided

Outcome flags

None reported

I received a notice in the mail my car needed a software update. I went to the dealership to have the update performed. They informed me there was a service campaign for an expanding fuel tank due to pressure. They were unable to return my car to me at that time stating they were awaiting direction from Hyundai Motor of America for the fix. The fuel tank expanded so much it bent the body of of the car underneath the backseat. It also broke the support straps. The dealership stated it was a known issue with a vent valve. Causing the fuel tank to swell so much it damaged the body. They have had my vehicle for 9 weeks with no direction as to what to next.

Reported

Jun 2025

Incident date

Apr 2025

Mileage

Not provided

Outcome flags

None reported

It was about 100 degrees outside yesterday, and while trying to pass a car, I look in my rearview mirror and notice there is fuel shooting out from my fill hose under my gas flap. I lost over 3 gallons of fuel on the road. This happened my whole 60 mile trip. This has happened to me before, but the temperature was around 76 degrees and it does not happen in cold weather. I have a feeling my fuel tank is expanding because when I took out my back seat where my fuel tank is located, the body of the car is all buckled up to the point where I can't get my backseat to latch down anymore. My car is available anytime for inspection upon request. I have not taken it to a dealer to get it looked at, there has not been a police report filed. And there were no warning lights or indicators other than a popping sound coming from my backseat area before the problem occurred. There are no warning lights or indicators after the problem either. I feel like I'm driving a bomb because my fuel tank could blow up at any time. This problem can be reproduced anytime by filling the tank and driving it in 90 degree weather.

Reported

Jun 2025

Incident date

Jun 2025

Mileage

Not provided

Outcome flags

None reported

I experienced an issue where the gas tank in my 2020 Sonata began to swell and emit loud popping noises while the vehicle was parked. I took it to the dealership, and Hyundai corporate eventually acknowledged the issue and agreed to buy out my loan. However, no official recall has been issued for this model year. This problem has had a major impact on my life. I lost my job due to not having transportation for over two months, and the stress of not knowing whether my vehicle was safe made it even worse. I had to upgrade my insurance for a loaner I never received, take financial hits, and go into deeper credit trouble—all while also recovering from a serious injury from a previous car accident. I now have to start over with a new loan while my credit is already damaged. I’m submitting this report not just for myself, but to ensure that other 2020 Sonata owners are protected and made aware of this issue. I believe this is a serious defect that warrants official investigation.

Reported

Jun 2025

Incident date

Mar 2025

Mileage

Not provided

Outcome flags

None reported

So I was driving down the highway and I went to pass a car, (I never get close when passing) I was probably at least a quarter mile away from the car I was passing. I have every safety feature turned off, as I have, since buying the car almost 2 years ago. All of a sudden, I’m not sure if my sensor was off or what, but I’m assuming it thought I was too close to that car and it just started swerving all over the highway. I went left/right 4 times before I was finally able to regain control, I couldn’t couter-act the swerves, nor could I hold my steering wheel straight to stop them. Luckily there were very few people on the highway as it was early in the morning. Had the time of day been different, I probably wouldn’t be here today, and some others probably wouldn’t be either, at least lots of injuries I’m sure. It hasn’t been confirmed, i don’t even know how to do that honestly, I was the only one in the car. I didn’t call anyone/say anything until right now because I was already running late for work, I was shaken up but I just called my parents and they said to look up recalls/file a report, which it seems like this is how I do it? There were no warning signs, nothing, I was driving for already about 30 minutes and everything was fine, never had any issue like this ever before. Like I said I’ve had this car for almost 2 years and she has been an absolute dream, aside from this mishap. But now I am very terrified to drive it, i don’t know what happened honestly, I don’t know what could have caused it, but this is why I hate smart cars. My safety was put at risk by what I assume was a safety feature malfunction of some kind.

Reported

Jun 2025

Incident date

Jun 2025

Mileage

Not provided

Outcome flags

None reported

The contact owns a 2020 Hyundai Sonata. The contact stated that after shifting into reverse(R), the back over prevention camera screen temporarily displayed an image before the screen went black. The contact stated that the failure had become a recurring failure, but recently became a constant failure. The contact had not taken the vehicle to a dealer or independent mechanic to be diagnosed or repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 64,000.

Reported

Jun 2025

Incident date

Mar 2025

Mileage

Not provided

Outcome flags

None reported

My 2020 Hyundai Sonata has a recurring defect in its engine or transmission, causing sudden deceleration to ~10 mph without warning, often on major highways, with warning lights (check engine, ESC, traction control, etc.) flashing seconds before the car decelerates. This forces me to swerve off busy roads, endangering me, my passengers, and other drivers. Near-misses with traffic pose an extreme safety risk, causing significant emotional distress. The car, at a Hyundai dealer since April 21, 2025, is available for NHTSA inspection. The issue began in January 2021, five months after purchase, with all the warning lights appearing during incidents along with rapid deceleration. The Hyundai dealer confirmed the problem in seven repair attempts (January 2021, December 2021, January 2022, November 2024, February 2025, and twice in April 2025) but never properly diagnosed or fixed it, citing no consistent diagnostic codes. Only the dealer assessed it; no inspections by Hyundai’s manufacturer, police, or insurance occurred. In November 2024, the defect recurred immediately after pickup, despite false assurances it was fixed. In February 2025, the dealer kept the car over a month with minimal communication, yet it failed again. I picked up the car on April 4, 2025, but it broke down on April 6, less than 55 hours later. I returned it April 7 and picked it up April 17, and it failed again on April 21, 2025 with the vehicle remaining at the dealer since. The dealer and Hyundai offer no solution and this dangerous issue keeps recurring. Similar NHTSA complaints suggest a broader issue. Rapid recurrences—hours after April 4 and four days after April 17—prove the car is unsafe and assurances of repairs are untrustworthy. I no longer trust the Sonata or Hyundai’s repairs, as the defect persists.

Reported

May 2025

Incident date

Apr 2025

Mileage

Not provided

Outcome flags

None reported

My wife and son experienced a terrible situation on the way home from training. They had to stop at the nearest gas station due to the vehicle showing extremely low gas in the tank during a short drive home. The fuel gauge initially showed about half a tank but drastically dropped on the way home. They stopped at a gas station to add fuel but during the process, fuel starting spewing out of the tank. The vehicle was scheduled to be dropped off at a later date for an open recall (service campaign 9B1). I called the dealership and told them I needed to get the vehicle in right away due to the incident. After bringing the vehicle to hyundai, they told me that the fuel tank exploded causing the tank to swell all the way around. Because the tank is located under the rear seat, we constantly heard air coming in due to the rear seat not seating properly. The check engine also was on and we smelled fuel while driving the vehicle. Hyundai representatives has been avoiding my calls to the point where I had to go in person for an update. Apparently, a district manager had to come inspect the vehicle to advise the dealership how to write up the request to send to corporate.

Reported

Apr 2025

Incident date

Mar 2025

Mileage

Not provided

Outcome flags

None reported

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.

Risk: 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.

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."

Risk: 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.

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."

Risk: 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.

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.

Risk: 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.