Which parts fail
Components named in complaints (headlights, tail lights, turn signals, interior lights).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2020 Hyundai Elantra owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2020 Hyundai Elantra. The contact stated while driving approximately 30 MPH at night, the high beam headlight became inoperable. The contact stated that the high beam on the sign was illuminated on the instrument panel. The contact had taken the vehicle to a dealer who diagnosed that the high beam headlights had failed due to a shutter in the headlight housing that opened and closed while needed. The contact was informed that the headlamp housing needed to be replaced. The vehicle was not repaired. The manufacturer was not informed of the failure. The contact researched online and related the failure to Technical Service Bulletin: 20-BE-004H Headlamp Replacement (Exterior Lighting). The failure mileage was approximately 57,000.
A fire started in the passenger headlight assembly. The car had only been running for about 7 minutes directly prior to the fire being noticed. At the time of the fire it was parked & turned off. No injuries. It burned thru/melted part of the bumper & damaged something with the windshield washer fluid. Several people were at risk due to there being a fire! The car was parked at a gas station when the fire broke out. I don't think they have done a thorough investigation yet. It is current at Hyundai of Metairie in Metairie LA. According to the service technician my car is not the only one they have there that had the same thing happen. No warning signs, sounds, or anything else.
The contact owns a 2020 Hyundai Elantra. The contact stated that the driver's side front headlight had failed to illuminate as designed. The vehicle was taken to the dealer where it was diagnosed that the computer system for the headlight had failed causing the headlights to not function as needed. The contact was informed that the headlight unit needed to be replaced. The vehicle had not been repaired due to parts not being available. The manufacturer was made aware of the failure. The failure mileage was 16,581.
Vehicle has ongoing issues with headlights prior to purchasing, they claim to have repaired & satisfied recall, however, they replaced headlights with the same faulty part the replacement lights are the same, with same issues, no high beams they have a steel rod operating a plastic gear that operates a shutter to dim & operates high beam. The problem is with the heat of halogens the rod gets hot and melts the gear connection rendering the shutter inoperable so as it is , we get a year and a half out of them then they are junk. Dealer cost is 900 dollars each just for 1 light. If dealership installs 2000 dollars. The issue is, they didn't reengineer the unit! Just keep selling faulty parts! There is no way we should have to go through this every year and a half. So we're going around with no high beams ( I'm including all owners) many complaints. Foremost, it's an obvious safety concern! …
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 #[redacted] 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. …
The high beams failed and Hyundai will only say that my VIN isn't part of the recall. Service Campaign T5G covers the exact same symptoms that my car is experiencing. Since Hyundai refuses to acknowledge that the safety issue in this campaign affects more than what they've previously admitted, myself and other owners are left to repair the defect at our own expense. A Google search brings up more than a few posts of owners that were also denied the recall because Hyundai says that their 2020 Elantra VIN isn't included in the recall. This shows that Hyundai refuses to acknowledge the full scope of the vehicles that have defect. Proper headlight function is absolutely necessary. High beams not working even cause state inspections to fail. …
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. …
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.
I got this car right at the beginning of 2020, I didn't even KNOW HOW to use my high beams until 2-3 years in. I used them all of 4-6 times and they magically stopped working. I don't need them often so I didn't notice right away. I've known for a while now but didn't know I could submit a form like this. And no way in hell am I paying that much money for something that broke after a few uses. I've heard this is very common for my car make and model; I can hear the doors of the light trying to switch open but they're stuck or something... I'm definitely not the only one having this 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 #[redacted]) is actively endangering the driver and the public.
Headlight complaints in other Elantra years
Frequently asked questions
How common are headlight problems on the 2020 Hyundai Elantra?
NHTSA has 28 complaints about the lights of the 2020 Hyundai Elantra, 11% of the model year's 262 complaints. The component named most often is headlights (1 mentions).
Is there a recall for 2020 Hyundai Elantra headlight problems?
No. NHTSA lists no lights recall for the 2020 Hyundai Elantra, though it has 3 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2020 Hyundai Elantra headlight problems start?
Half of the complaints with a recorded mileage happened before about 23,000 miles, and 75% before 25,000 miles.
Is it dangerous?
Owners linked 0 crashes, 1 fire and 0 injuries to lights problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.