2020 Hyundai Elantra Complaint Log

The check engine light came on at 101000 miles. I took it to the shop and the mechanic said there was no oil on the dipstick and he put in oil and said we need a new engine because it is knocking. We have noticed the vehicle has a rough idle now.

Within a matter of a few days my car has been stopping by itself. The car was smoking and stopping in the middle of the highway, my dealership is proving me with a new engine but is trying to have me come out of pocket for an fuel injector, please help !

Said it needed a map sensor. I replaced it and it started acting g crazy. Dying at stop lights making weird noises. I finally threw cod P0011 so I bought the oil control valve before it arrived ny car died. It skipped 5 or 6 teeth. 3,900 left to pay on it. Im a single mom and need my car to provide [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I see there was a P0420 error code related to catalytic converter oil consumption recall, but when I put in my VIN it said no recalls. This is for a 2020 Hyundai Elantra 2020. The problem comes and goes and was able to be reproduced or confirmed by a dealer Hyundai. The warning lamps, messages comes on frequently and was reportedly fixed charges $2000 for a sensor. I the code and it is all over the internet that it is a recall.but does not show up with VIN.i need assistance with getting this fixed at the dealer

The contact owns a 2020 Hyundai Elantra. The contact received notification of NHTSA Campaign Number: 21V301000 (ENGINE). While driving at an undisclosed speed, the check engine warning light illuminated, and the vehicle was pulled over to the side of the road. The vehicle was towed to the residence. The contact then towed the vehicle to the dealer, where it was diagnosed with piston oil rings failure, and it was determined that the engine needed to be replaced. The dealer informed the contact that the manufacturer had refused to honor the recall repair. The vehicle remained at the dealer unrepaired. The manufacturer was not notified of the failure. The failure mileage was unknown.

My car just lost all power and stopped on the side of the road after making a weird noise under the hood

burning/ oil/gas in oil/stalling/engine light on...open recall of other models of same car not includin tghis one.seems to be same issue.

The manufacturer's Executive Case Management has ceased communication after verifying a total headlight failure. Despite providing evidence that the vehicle is grounded 150+ miles from home during a snowstorm, Hyundai is refusing to authorize the remedy outlined in TSB 20-BE-004H. This non-responsiveness to a verified safety hazard (Invoice #XXX) is actively endangering the driver and the public. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The vehicle suffered a total, simultaneous failure of both low-beam and high-beam headlights due to a known manufacturer defect involving internal wiring and melted pigtail sockets. This matches the failure pattern described in Hyundai TSB 20-BE-004H and Service Campaign T5G (TSB 21-01-004H). ​On January 22, 2026, Robert Woodall Hyundai (Danville, VA) inspected the vehicle and confirmed on Invoice #[XXX] that "BOTH HEADLIGHTS ARE INOP". Despite this verification and the presence of technical bulletins for the ADa model line, the dealer refused the repair and refused to submit a Goodwill Authorization request as mandated on Page 2, Note 2 of the TSB. ​The Service Manager (Alan Pyles) claimed in an email that the TSB had "expired," despite the defect being active and documented in more recent campaigns. Releasing a vehicle with documented inoperative headlights creates an immediate safety risk for nighttime operation. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Reporting motor has a cold start ticking sound coming from the motor.

Was driving car after a recent oil change. The oil change was performed early because the car was ticking and found oil to be low. Was going to take into dealer to be looked into but the car made a loud sound and stopped immediately and turned off. Luckily I was not driving too fast but had I been this could have posed a risk to myself, my passengers and other drivers. This complaint is consistent with prior engine failure complains of other Hyundai models. The Elantra has yet to be investigated. The maintenance lights that came on have only been for a high mount break light and low tire pressure. I did not get a low oil or oil change needed alert.

my engine started to make a horrible noise and the car won’t start anymore. Hyundai engines are known to burn oil and don’t light the low oil dash light until it is too late. Other Elantra trims have a recall for Hyundai to fix this yet mine does not.

Subject: Abnormal Engine Failure – Hyundai Case #[XXX] I am filing this complaint regarding my Hyundai vehicle, which suffered catastrophic engine failure at approximately 150,000 miles. While the vehicle is outside the standard warranty, this type of failure is not consistent with normal use or expected durability. Hyundai Motor America has acknowledged receipt of my certified demand letter (Case #[XXX]) but has refused to provide coverage, instead directing me to pay for towing and diagnostic costs. This position is unacceptable given Hyundai’s history of abnormal engine defects and related settlements. Key points: • The failure is abnormal and consistent with systemic defects Hyundai has faced in prior litigation, including the Theta II and Lambda II engine defect class actions, which resulted in recalls and settlements covering millions of vehicles. • Hyundai has previously extended goodwill repairs and recall coverage for similar failures, even outside warranty periods. • Engine failure at this mileage presents a serious safety hazard, including risk of stalling, fire, or loss of power while driving. • Hyundai’s refusal to cover towing and diagnostic costs places an unfair burden on consumers and may violate consumer protection statutes. Requested Action: I request that the agency investigate Hyundai’s handling of abnormal engine failures, ensure compliance with consumer protection and safety laws, and require Hyundai to provide coverage or reimbursement for towing, diagnostic, and repair costs in cases where engine failure is abnormal and unsafe. Supporting Documentation: • Certified demand letter sent to Hyundai Motor America. • Hyundai’s written denial (Case #[XXX], dated December 11, 2025). • Vehicle mileage and details of engine failure. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Cruise control on 55mph, car has slowed down going straight no uphill or downhill and accelerator did not work nothing blocking the accelerator. Had to pull over to a shoulder to shut engine off and on to drive. Tapping cruise control up to speed up in regulated area such as from 55 to a 65mph zone.. cruise control speed lowered. Attempting to speed up with accelerator still only slowing down. 3 times this year I had to change spark plugs within a 6 month period Error code p0302. Replaced battery alongside. Continues p0302 code. Replaced all coils and spark plugs still p0302. Climbing uphill vehicle sometimes looses power that happened twice in 2025 and twice in 2022. 3 times in 2024. That i must turn on hazards and floor the accelerator to gain speed on up hills in neighborhoods going 25 mph. I have dropped to 10 mph. I get oil change regularly. Always when due. Every few months I make sure to get a full car inspection to make sure everything is in proper working order.

The vehicle is burning the engine oil. I get regular oil changes on time. I was told by the service center I had low oil at an oil change. It was changed and then again it a few months later I burned through the oil again. I checked it and there was very little oil. There is no leak. It is just burning it.

I took my car to McDonough Hyundai to get a transmission flush. 22 hrs later, the transmission died while my daughter was driving it. We had it towed back to the dealership and were told that they would not repair or replace the transmission they destroyed. I found out that my car is covered under Service Campaign 963 for the IVT transmission and they still won't fix my car and have been holding it hostage for about six months now. I've even lodged complaints with Hyundai Corporate and the BBB AND the GA Attorney General's office and either recieve no answer or they are running me around in circles. I just want them to fix my car and give it back to me!

2020 Elantra built in Alabama with 2.0L engine has P0016 code and severe oil sludge at 73K miles - identical to Recall 21V301 symptoms but excluded because manufactured in Alabama not Korea. This appears to be the same defect affecting a different production batch.

Engine blew up on the highway almost causing an accident. The car has had problems with rapid oil consumption since 20000 miles on the car. Always checked oil everyday and added oil when needed and regular oil changes every 3000 miles car was very well taken care of. No oil light or check engine light came on when the engine blew up.

I am writing to formally file a safety complaint regarding my 2020 Hyundai Elantra. I recently learned that Hyundai issued a recall related to a defect that poses a risk of engine fires in certain vehicles. However, my vehicle, which has exhibited the same dangerous symptoms, was not included in this recall campaign. Specifically, my vehicle has experienced a critical error relating to a defect included in NHTSA Recall #21V-301, which I understand is directly related to the safety defect identified in Hyundai’s recall. Despite this, I have not received a recall notice, and Hyundai has declined to provide repair coverage under the recall. This raises serious concerns for my safety, the safety of my passengers, and the public. A defect that can cause an engine fire should not be limited to specific VIN ranges if the underlying issue is present in additional vehicles like mine. I respectfully request that NHTSA investigate this matter and ensure Hyundai expands the recall to include affected vehicles such as mine. If Hyundai continues to exclude vehicles with the same defect, I believe this could warrant further legal and consumer protection actions, including potential class action litigation. Please find my vehicle information below: 2020 Hyundai Elantra VIN: [XXX] Mileage: 51,000 Thank you for your time and attention to this urgent safety concern. I look forward to your response and am willing to provide additional documentation, repair invoices, or photographs as needed. Sincerely, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2020 Hyundai Elantra. The contact stated that while his son was driving at an undisclosed speed, the Lane Assist safety feature failed to function as intended. The messages “Forward Collision Avoidance”, and “Lane Assist Camera Disabled” were displayed. The vehicle was taken to a local dealer, where it was diagnosed, and determined that the Forward Collision Avoidance and Lane Assist Camera needed to be replaced. The vehicle was not repaired because the warranty was invalid. The manufacturer was made aware of the failure. The failure mileage was approximately 110,000.

THE MOST CAR HUNDIA ANTRA 2020 HAS ONLY 75000MILES NEED TO REPLACE SOMTHING IN STEERING WHEEL HAS COMMON ISSUE STERING WHEEL TRUN IS VARY DENGRES ISSUE UNTILL NOW IS NO RECALL DID CALL HUNDIA COORPRAT OFFICE ABOUT THIS ISSUE IS NO ANSWER IS VARY DENGRES ISSUE CAN LED TO BIG ACCDENT

The head lights will not go into high beam mode. When the high beams are turned on, they initiate and then flicker back and forth from on and off and will not remain on. This happens simultaneously with both lights. It appears to be a electrically issue with the high beam setting and the current not remaining constant. I have taken it to two different shops and they said it is a common with this car and to check for a recall because they have had others that had the same issued recalled. My VIN does not show a recall. This issue can also ONLY be corrected by Hyundai. The places that I have taken it to said there is a special tool they have to use to even get to this component. I noticed this starting a few months ago and still has not corrected. I have not been able to use my high beams since Aug/Sept.

The headlights still cannot be used on high beam as the lights strobe when used. This was complaint was previously submitted with the same Vin#. This is dangerous for driver and others, including oncoming traffic. The local Hyundai dealer said it is would be $200+ for them to diagnostic and if they fixed it, the diagnostic fee would be credited toward the repair. How can this not be coved under a recall when it is clearly a safety issue and many mentions on line with others having the same problem? The vin.# says there are no open recalls. How can I get this covered on my car that is the same model and year as others with the same problem. I see a couple service bulletin's and would like to know if any apply. Please respond with any help or suggestions on this matter as I need help from the NHTSA to get Hyundai to fix it. I am happy to send a video for proof. I look forward to your reply. Thank you very much!

Both headlights bulbs needed to be replaced several times. Passenger replacement bulb 3 times. Drivers side twice. I have sent Hyundai several emails and have not heard back from them. case # [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Bought with 63000. Miles, have driven 40000 miles. Engine seized. Will not Start. Told by mechanic that engine is dead and happens frequently with this car. What are my options?. ALL UPKEEPS PERFORMED. NO WARNING.

The contact owns a 2020 Hyundai Elantra. The contact stated that occasionally, while driving at various speeds, the transmission was slipping. The contact stated that while attempting to accelerate from a stop, the transmission was slipping, with the check engine warning light illuminated. The vehicle was towed to a local dealer, where it was diagnosed, and the contact was informed that the failure could not be duplicated and that no fault was found with the vehicle; however, metal shavings were found in the transmission fluid. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 100,781.

At around the 120K mile odometer reading check engine light came on and upon checking the oil, noticed it was 1/2 qt. down in spite of a recent oil change. There were no other issues apparent to our mechanic. At the next oil change, we asked the techs to be sure to tighten the oil pan and all components as we mentioned the drop in oil after the previous oil change. This time, only 10 days after the oil change (we have been using hybrid blend since purchasing the vehicle new), the check engine light went on again and the oil was down a quart with no signs of leaking. Our mechanic checked it again and told us of many Hyundai oil consumption issues and suggested we check for a recall. My vehicle was not included in the oil consumption recall despite having the same year, model and engine as many of the other "certain" vehicles. We are currently negotiating a solution with Hyundai Motor Corp.

I have taken my car in twice due to my car braking when there is not a vehicle and or object in front of me but there are vehicles right behind me that have to brake but Crain denies that there are any issues. My engine light came on a couple of weeks ago and I took it to Auto Zone to have a diagnostic test done. The report states that it has something wrong with the transmission/transmission line and or fluid. When I looked it up online it stated that there are recalls on engine pistons that could cause the diagnostic test to read that it's the transmission. My car is a 2020 Hyundai Elantra value edition but according to your website, there are no recalls!?

Spun bearing in engine. All service on vehicle up to date.

Fuel pump keeps on failing I replaced it 3 time.

The contact owns a 2020 Hyundai Elantra. The contact stated that while attempting to turn at approximately 5 MPH, the traction control warning light illuminated. The contact pulled over to the shoulder of the road and restarted the vehicle; however, the vehicle failed to accelerate as intended while the accelerator pedal was depressed. The check engine warning light was illuminated. The vehicle was towed to a local independent mechanic, where it was diagnosed with excessive oil consumption, catalytic converter failure, and related the failure to NHTSA Campaign Number: 21V301000 (Engine). The local dealer was contacted however, the VIN was not included in NHTSA Campaign Number: 21V301000 (Engine). The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 89,709.

The contact owns a 2020 Hyundai Elantra. The contact stated that while driving at an undisclosed speed, the vehicle hesitated and lost automotive power. No warning lights were illuminated. The local dealer was contacted; however, the vehicle was not diagnosed or repaired. The contact stated that an appointment with the dealer was scheduled to inspect the vehicle. The manufacturer was not made aware of the failure. The failure mileage was approximately 68,000.

The contact owns a 2020 Hyundai Elantra. The contact stated that the vehicle unexpectedly turned off while driving 25 MPH on a local road. The engine symbol was displayed. Additionally, the battery was drained. The vehicle was taken to an independent mechanic, and the battery was replaced three times. Additionally, the computer was replaced, and the contact was informed that the powertrain system had failed. The local dealer was contacted and confirmed that there was no extended warranty on the vehicle. The vehicle was not diagnosed or repaired. The contact called the financial institution and the dealer who sold the vehicle about the warranty. The manufacturer was not notified of the failure. The failure mileage was approximately 70,000.

Engine timing chains are failing in a direct result from recall campaign ID 21V301000 Piston ring noise sensing system which contaminated my oil accelerating wear on my engine chain and sprockets. A failed or ineffective piston ring noise sensing system can let piston/ring damage go unchecked, leading to oil contamination, which in turn wears out or destroys the timing chain system.

The contact owns a 2020 Hyundai Elantra. The contact stated that while driving at an undisclosed speed, there was a low rattling sound coming from the engine compartment. Upon checking the oil, the contact found the oil level was low and added approximately two quarts of oil. The contact stated that 2-quarts of oil were added monthly because the oil level and consistently low. However, there were no signs of an oil leak while the vehicle was parked. The vehicle was not diagnosed or repaired; however, during a routine oil change, the contact was informed that an oil gasket might need to be installed. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was unknown.

My name is [XXX] , and I am the owner of a 2020 Hyundai Elantra SE with approximately 93,000 miles (VIN: [XXX] ). I am writing to express my concern regarding the safety and security of my vehicle, particularly due to the increasing reports of thefts involving similar Hyundai models. As a student, my vehicle is essential for my daily commute and responsibilities. The ongoing theft issues have made me feel very anxious, and I am unsure of the steps I should take to ensure the safety of my car. I would greatly appreciate any guidance or support from Hyundai on how I can improve the security of my vehicle. Please let me know if there are any available updates, recalls, or security measures that I can take advantage of. Thank you for your time and support. I look forward to hearing from you. [XXX] [XXX] . INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I experienced engine failure with this make and model out of no where. Seen online recalls in the past for same make, year, and model. Dealership and and corporate are not helping me one bit, threatening to charge me for storage, lied about my corporate case being denied, when I have email evidence it was still open, and now zero contact back from Hyundai corporation. I'm trying to seek legal advice and would love any help moving forward struggling gravelly from all of this. Thank you so much

NO INCIDENT - HIGH BEAMS INOP.

Burning oil at any unacceptable rate. I have made sure to have preventative maintenance and oil changes done every 3K miles. Hyundai needs to address this problem that appears to be plaguing many drivers.

The contact owns a 2020 Hyundai Elantra. The contact assisted in jumpstarting another vehicle with battery failure. The contact stated that the vehicle failed to start the next day after several attempts. There was no warning light illuminated. The contact stated that the TPMS warning light had been illuminated prior to the failure. Due to the failure, the vehicle was towed to two separate independent mechanics who informed the contact that the engine had failed. The dealer was notified of the failure and the contact was informed that there were no recalls on the vehicle. The manufacturer was not notified of the failure. The vehicle was not repaired and remained with an independent mechanic. The failure mileage was approximately 130,000.

Vehicle was recently purchased and brought in to service recall 22-01-030H (TCU Update and IVT Replacement) Fred Bean Hyundai of Langhorne (1106 E Lincoln Highway, Langhorne, PA, 19047) did the software update, but refuses to honor the IVT replacement as part of the recall, despite the transmission not working and needing to be towed to the dealership. They are attempting to charge me a minimum $5000 to replace the transmission, despite the replacement being covered under this recall campaign. Please contact me and advise if I should pay them and am then entitled to a reimbursement or if I should even have to pay them in the first place. They currently have my vehicle and I can't even drive it off-lot due to failed transmission.

Paint is peeling off vehicle.

The contact owns a 2020 Hyundai Elantra. The contact stated that while driving at various speeds, the RPM elevated to a high level while depressing the accelerator pedal. There was no warning light illuminated. The failure persisted while depressing the accelerator pedal without a warning light being illuminated. The contact used a code reader to diagnose the vehicle; however, no fault codes were found. The vehicle was taken to a dealer and was diagnosed with transmission failure. The vehicle remained in the possession of the dealer unrepaired. The manufacturer was not notified of the failure. The failure mileage was 70,000.

On January 1, 2025, I discovered my vehicle had been stolen after finding broken glass in my driveway and immediately reported the incident to the police, who arrived within approximately 20 minutes; neighbors later provided camera footage of the theft, and I also observed other nearby vehicles with similar damage, including a broken rear window and another Hyundai Elantra that appeared abandoned. The following day, police informed me the vehicle had been recovered, and upon inspection I found the rear driver-side window completely broken and the ignition area under the steering wheel damaged. Couple months later I received a recall notice for the antitheft system on my 2020 Hyundai Elantra (VIN [XXX] ). When I brought the vehicle to the dealership on April 1, 2026, I was informed that the recall cannot be completed unless an additional part is replaced, at a cost of approximately $1,178. This part was damaged during a prior theft incident. My vehicle was stolen last year and later recovered, and it sustained damage during that incident. However, I understand that safety recalls are required to be repaired at no cost to the owner under federal law. I am concerned that I am being asked to pay for repairs in order to complete a safety recall, and that my vehicle remains vulnerable without the recall remedy being performed. I am also concerned about the safety and legal compliance of continuing to operate the vehicle under these conditions. I am attaching supporting documents as proof of the vehicle theft, along with the reports provided by the dealer. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

transmission failed while driving & now doesn’t drive.

Engine is stalling and consuming oil at a higher then normal rate. Knock sensor is having issues at 24k miles both part of recall campaign 974 and recall 203. Took the auto to dealer for service and was told Hyundai would not honor the recall due to a branded title which now puts me in a scenario of possibly engine stall in the middle of highway traffic.

On [XXX] at about 1:40 p.m. I was driving to work, and got distracted and had a front-end collision with a tree that was about 1-3 feet next to the side of the road. Extensive damage to the vehicle, and personal injuries occurred (mild concussion, stress fracture of left forearm, bruising/abrasion on ride side torso, sprained left thumb, and abrasions on head). Both the driver and passenger airbags did not deploy which contributed to me almost flying through the windshield. The emergency responders and tow truck operator were very surprised I wasn't in critical condition or dead and noted that the airbags failing was a serious issue and I was lucky. This was reported to the manufacturer and geico insurance on December 20th, and I am currently awaiting to hear back from both to get the inspections scheduled. The vehicle is currently located at OC's Auto at 598 Armistead Blvd, Holt FL 32564. I have already signed papers giving permission for inspections by the insurance company if they request it, but currently inspections haven't been done yet to determine damage estimates or to investigate the airbags. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Engine stalled out, oil light and engine repair light both on, call will not turn over

The high beam shutter that switches from high to low is not working. The car has 68,000 and I don't think this is something that should not work at that low mileage considering it is not in use all the time. I just dont see how it stops working all of a sudden when most of the time drivers do not use their high beams everyday. I just got inspected because its required in our state and both mechanics confirmed this problem. We bought a new bulb and that is when we found out the problem.

Took car into closest mechanic on Saturday 11/09/24 and was informed that both engine mounts were completely shot. Mechanic informed me car was unsafe to drive. Had the car repaired as Hyundai service center was closed. I contacted Hyundai on Monday 11/11/24 to let them know what happened. Received call yesterday from case manager that since I didn't take car to Hyundai facility they would not reimburse me the money paid on the repair. Mechanic at service station said it was unsafe to drive the car of his property. The mechanic also told me he has never seen either engine mount completely shot in care that was only 4 years old.