Complaint volume
236 consumer-submitted complaints are matched to this model year. Treat the count as a research signal, then read the actual summaries for repeated symptoms.
Complaint records
236 consumer-submitted complaints on record for the 2020 Hyundai Elantra, grouped by component category.
Buyer interpretation
Complaint records are most useful when they turn into inspection points, seller questions, and comparison checks against nearby model years.
236 consumer-submitted complaints are matched to this model year. Treat the count as a research signal, then read the actual summaries for repeated symptoms.
The most common categories are engine, power train, exterior lighting. Use those categories as a test-drive checklist instead of judging the vehicle from the total count alone.
Enriched records include 20 crash reports, 6 fire reports, 11 injury reports, and 1 fatality report. These fields come from complaint records and should be read in context.
Mileage is available on 69 complaints, with an average reported failure mileage of 30,137 miles. Compare that with the mileage on the listing.
Build a buyer checklist to turn these issues into questions and inspection points.
236 total complaints on record
| Date | Component | Summary | Severity | Mileage |
|---|---|---|---|---|
| May 2026 | FORWARD COLLISION AVOIDANCE | Around 9 p.m., I was driving home on the XXX highway at about 60 mph. The road was clear, with no obstacles ahead, and it was lightly drizzling in the [XXX] area. Suddenly, the car's emergency braking system activated, then returned to normal. Although it startled me, thankfully there were no cars behind me to avoid a collision. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) | Crash: No Fire: No | Unknown |
| May 2026 | ENGINE | The contact owns a 2020 Hyundai Elantra. The contact stated that while driving, the vehicle unexpectedly stalled. The vehicle was able to restart. The check engine light illuminated. The vehicle was taken to an independent mechanic Camshaft sensor failure. The camshaft sensors were replaced; however, the issue persisted. The vehicle was then taken to the dealer where it was diagnosed with engine failure but the vehicle was not repaired. The manufacturer was notified of the issue. The contact associated the issue with NHTSA Campaign Number 21V301000 (Engine). The approximate failure mileage was 105,000. | Crash: No Fire: No | 105,000 |
| May 2026 | UNKNOWN OR OTHER,SERVICE BRAKES,ENGINE | This complaint documents a recurring automatic transmission failure resulting in three complete vehicle shutdowns during active operation — two at highway speed and one in an active turning lane. The most recent failure occurred within 15 minutes of the vehicle being released from an authorized Hyundai dealership in College Park, Maryland, whose general manager admitted in a recorded call that the vehicle was released knowing the transmission was unrepaired and unsafe. The first failure occurred in 2025 on a highway with no prior warning. The vehicle was towed to the dealership, where the transmission was confirmed defective and repaired under warranty. The second failure occurred in January 2026, again on a highway with no warning. The dealership held the vehicle from January through May 2026 — four months — with no updates despite multiple owner inquiries. In April 2026 the dealership confirmed the transmission had failed again and was seeking Hyundai corporate authorization for the warranty repair. On May 21, 2026 I was told the vehicle was ready and the transmission had been fully repaired under warranty. This was false. On [XXX], within 15 minutes of leaving the dealership, the transmission failed a third time, completely shutting the vehicle down in an active turning lane with no warning. The general manager at Hyundai College Park later admitted in a recorded call that the transmission was never repaired and the vehicle was released only to recover the dealership's rental car, with full knowledge it was unsafe. All three failures were confirmed by the authorized dealer. Component is available for inspection. NHTSA investigation and recall consideration requested. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) | Crash: No Fire: No | Unknown |
| May 2026 | POWER TRAIN | I bought a 2020 Hyundai Elantra in 2024 with 67k miles on it. After driving 22k miles the check engine light went on and when it was brought in to get it checked the transmission went out. I did not buy a warranty so I understood it would not be covered. The issue I had was it was very hard to get information on the condition of the car that was sold to me. What I found out was that the transmission fluid was likley not changed ever and definetly not checked before the car was sold since the check engine light was not on and the engine sounded fine when I bought it. Which when I did meet with the service manager was informed of. The service manager noted that the IVT transmission has a long history of going out and is a bad design. He stated that most cars are not being made with it anymore and that this is well known problem. My biggest issue is that they knew this when it was sold and since the car was already over 60k when they got it should have at least checked the fluid or put in new fluid due to the history of transmission problems on the car. It is very likely this was not done to the likelihood the fluid was already bad and the transmission would have gone out so they wanted to pass it on to the customer. I know it is on me to know about a car when it is purchased but did not think of checking specifically on what type of transmission was in the car and now always will. I have had two Hyundai and both went over 200k without problem. To have one go 89k and go out was totally unexpected and there were no warnings except a check engine light. The service manager was nice but told me there was nothing that could be done. | Crash: No Fire: No | Unknown |
| May 2026 | POWER TRAIN,ENGINE | The contact owns a 2020 Hyundai Elantra. The contact stated that while driving at an unknown speed and at a stop, the vehicle lunged forward. The RPM increased and decreased without applying the accelerator pedal. The check engine light was illuminated. A mobile mechanic reset the codes but was unable to determine the failure. The vehicle was taken to an independent mechanic who referred him to the local dealer. The local dealer was contacted, who stated there was a transmission pressure sensor issue. which prevents the service from being performed under Hyundai Service Campaign 863 T5B Bulletin: 20-01-028H. The manufacturer was contacted, but no additional assistance was provided. The failure mileage was approximately 76,000. | Crash: No Fire: No | 76,000 |
| May 2026 | POWER TRAIN,VEHICLE SPEED CONTROL | The Contact owns a 2020 HYUNDAI Elantra. The contact stated while operating the vehicle at an undisclosed speed, he noticed that his RPM were going back and forth while on cruise control, after removing cruise control the vehicle stayed the same. The vehicle was pulled over and restarted but the vehicle was hesitating to accelerate and noticed a issue with the gears not. The vehicle was towed to a independent mechanic but was not fully diagnosed due to the transmission driving forward when in neutral. The dealer was notified of the failure and a appointment was set for a later date. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 106,000. | Crash: No Fire: No Towed | 106,000 |
| May 2026 | SERVICE BRAKES | I am submitting this complaint to document ongoing brake related concerns on my 2020 Hyundai Elantra that may affect vehicle safety. Since April 2024, I have experienced repeated brake rotor warpage that causes vibration during braking, reduced braking consistency, and a noticeable change in stopping behavior. These symptoms raise concerns about braking performance and overall vehicle control. I reported the issue to Hyundai Motor America and followed their required warranty process, including an inspection at High Desert Hyundai. The dealership indicated the condition should be covered under warranty, but I was charged twice for what should have been a no cost warranty inspection. HMA later denied warranty coverage based on an undefined claim of “outside influence” without providing any criteria, explanation, or evidence supporting that conclusion. The denial prevented me from understanding the basis of their determination or how it applied to the brake condition. HMA then directed me into the BBB Auto Line program under case number HYU2605570 as the next step for disputing the decision. Throughout this process, Hyundai did not provide any additional information or documentation explaining the cause of the brake condition or addressing the safety concerns I raised. Because braking performance affects stopping distance and vehicle control, I am reporting this issue to NHTSA so the agency is aware of the repeated brake vibration and rotor warpage, the inconsistent braking behavior, and the lack of clarity from the manufacturer regarding the cause. I possess all invoices, communications, photographs, and documentation related to the inspections and interactions with the dealership, HMA, and BBB Auto Line, and I have maintained these records since April 2024. I also filed a complaint with the NHTSA for this same reason on February 4, 2025, complaint no. 11638352, for reference. | Crash: No Fire: No | Unknown |
| Apr 2026 | BACK OVER PREVENTION | The contact owns a 2020 Hyundai Elantra. The stated that the backup camera was inoperable. No warning lights were illuminated. The contact stated that failure was related to NHTSA Campaign Number: 24V879000 (Back Over Prevention). The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was contacted, who confirmed there was no recall. But no assistance was provided. The failure mileage was approximately 19,100. | Crash: No Fire: No | 19,100 |
| Apr 2026 | EXTERIOR LIGHTING | Unknown and about 4 months ago my headlights stopped working one would go out I’d replace the bulb then the other goes out then a different bulb in my headlight would go out I’d replace it and it would go out again then the connectors were unresponsive then my height beams won’t engage leaving me with little to no light in order to operate my vehicle at night and oddly enough they would disengage while driving leaving me visually impaired while driving | Crash: No Fire: No | Unknown |
| Apr 2026 | ENGINE | My engine failed due to a known piston problem code P1327. The recall 203 was performed 7/1/22 which put in a sensor so the dealership said that Hyundai said they do not have to fix it because it is out of warranty at 141,000 miles and was manufactured in South Korea so they say it doesn't qualify for the extended warranty Recall 203 Dealer Best Practice Date: October 12, 2021 Subject: HMA Recall 203 – Nu 2.0L Atkinson Engine Inspection and Replacement - (TSB #21-01-054H-1) - Remedy Available v3 Updates To This Document Date • TSB# 21-01-054H-1 – The TSB supersedes TSB # 21-01-054H to revise the Parts and Warranty Information sections, specifically related to add engine and service kit part numbers and op codes for engine replacement. 10/12/21. My car is available for inspection. The sensor light came on on the highway when the engine was already out of oil which caused the failure. The car could have caught fire or stalled on the highway which is the safety issue. The vehicle was inspected by Tires Plus and got the P1327 code and also the Wallace Hyundai dealer in Ft. Pierce, FL which got same code. | Crash: No Fire: No | Unknown |
| Apr 2026 | ELECTRICAL SYSTEM,ENGINE | 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. | Crash: No Fire: No | 70,000 |
| Apr 2026 | ENGINE | 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. | Crash: No Fire: No | Unknown |
| Apr 2026 | ELECTRICAL SYSTEM,ENGINE,FUEL/PROPULSION SYSTEM | 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 ! | Crash: No Fire: No | Unknown |
| Apr 2026 | ENGINE | 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) | Crash: No Fire: No | Unknown |
| Apr 2026 | AIR BAGS,FORWARD COLLISION AVOIDANCE | I no longer have this vehicle, as I traded it in once I was able to lower some of my negative equity. During owning the 2020 Hyundai Elantra, a deer it the side of my vehicle and knocked me into the center of the road while I was driving. No airbags had come out, nor was any sensor activated. About 6-8 months later, I was driving down the same road and a deer had run across the road. The forward collision sensor did not alert me (I was paying attention to the road, but would have absolutely heard it), and my airbags did not deploy. My car suffered over $9,000 in damage and I had a concussion. | Crash: Yes Fire: No Towed | Unknown |
| Apr 2026 | STEERING | 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) | Crash: No Fire: No | Unknown |
| Mar 2026 | ENGINE AND ENGINE COOLING | 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. | Crash: No Fire: No | Unknown |
| Mar 2026 | POWER TRAIN,ENGINE,FUEL/PROPULSION SYSTEM | 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 | Crash: No Fire: No | Unknown |
| Mar 2026 | ELECTRICAL SYSTEM | Headlight high beam do not work after 2 years. Regular lights work but when turning on the high beam the sign comes on but the high beam does not come on | Crash: No Fire: No | Unknown |
| Mar 2026 | ENGINE | 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. | Crash: No Fire: No | Unknown |
| Mar 2026 | ELECTRICAL SYSTEM,BACK OVER PREVENTION,FORWARD COLLISION AVOIDANCE | The headlights failed their soldered incorrectly. It looks like a child did it. The back camera has yet to work since shows black screen, and then the lane Assistant shuts off in the middle of the road and there’s nothing blocking it. lights went out and kept going out no matter how many times I replaced the bulb when I was on the highway. I took it into Firestone and they stated that the company fucked up the wiring system. | Crash: No Fire: No | Unknown |
| Feb 2026 | UNKNOWN OR OTHER | 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! | Crash: No Fire: No | Unknown |
| Feb 2026 | ENGINE | 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. | Crash: No Fire: No Towed | Unknown |
| Feb 2026 | ENGINE | My car just lost all power and stopped on the side of the road after making a weird noise under the hood | Crash: No Fire: No | Unknown |
| Feb 2026 | EXTERIOR LIGHTING | 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) | Crash: No Fire: No | Unknown |