2020 Hyundai Elantra Electrical Problems

I have a 2020 Hyundai Elantra Limited that was purchased new in December of 2020, has 17,764 miles, and no damage. At the end of May/early June of 2026, the car gave warning messages for the following: check forward collision avoidance assist system, check lane keep assist system, and check high beam assist system. The car was inspected by the dealership, from which it was purchased, on June 29, 2026. The technician report says error codes C1604 and C1606 were found and that the car required replacement of the front camera system at the cost of $1991.49. Front camera failure negates the ability to use the advanced safety features of this car. These features are so important to alert and, more importantly, assist the driver avoid accidents and improve all motorists safety. I have read numerous complaints depicting the same problem with this front camera system. Hyundai issued TSB 20-BE-006H due to multiple problems just like the one that happened to me. I have corresponded with Hyundai about this situation and my concerns on why a car with this few miles and no damage had a failure of this magnitude. They are unwilling to assist due to the warranty expiring 6 months ago. For components this important to the safety of all drivers, I would like to see a recall established to hold Hyundai accountable for faulty components. Safety should not be limited by a warranty and last longer than 5 1/2 years. Than you for your consideration.

NHTSA ID

11748184

Incident

Jun 1, 2026

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.

NHTSA ID

11733271

Incident

Jun 1, 2025

Mileage

70,000 mi

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 !

NHTSA ID

11729565

Incident

Apr 5, 2026

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

NHTSA ID

11724397

Incident

Mar 16, 2023

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.

NHTSA ID

11722670

Incident

Jun 1, 2023

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!

NHTSA ID

11713238

Incident

Aug 1, 2025

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.

NHTSA ID

11704779

Incident

Sep 1, 2025

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.

NHTSA ID

11686593

Incident

Sep 3, 2025

Mileage

110,000 mi

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)

NHTSA ID

11677141

Incident

Jul 30, 2025

The backup camera no longer works. The screen remains blank or turns blue.

NHTSA ID

11677110

Incident

Jul 29, 2024

NO INCIDENT - HIGH BEAMS INOP.

NHTSA ID

11676006

Incident

Mar 13, 2025

Vehicle had several non-starts. I took it to the dealer a couple of times and they could not duplicate the problem. This problem continued for a couple years before I took it to an independent mechanic. Said mechanic put it on a lift and found a loose power cable barely connected to the starter. Luckily this never caused a short, spark, or fire. From my searching online it appears this is a non-infrequent issue with Hyundai's.

NHTSA ID

11649056

Incident

Jan 9, 2024

driver side brake light went out I did have it repaired right away since I knew it was a safety hazard for anyone behind me. And sometimes I do see the same model on the road with the same issue. I don't think the running light is a safety issue but also have a problem with that going out also.

NHTSA ID

11647678

Incident

Sep 2, 2024

The camera keeps flickering and does not stay on.

NHTSA ID

11627887

Incident

Jul 1, 2024

The warning lamp (engine light) illuminated blinking on and off. Engine code P1327 read on the diagnostic check, riding on the expressway was a little uncomfortable, engine was losing power which is unsafe at high speeds. I’ve contacted the nearest Hyundai dealer and scheduled an appointment for the car repair. I take care of the car and any repairs for maintenance and I never have any problems whatsoever until day. After doing research Hyundai had or has a recall for my vehicle with the VIN NUMBER starting with KMH, for engine replacement and I want to know if Hyundai can fix this issue.

NHTSA ID

11614269

Incident

Sep 12, 2024

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.

NHTSA ID

11610088

Incident

Aug 8, 2024

Car is almost stalling Randomly on the highway . The rpm’s go up and car won’t speed up slows down . Stalls very randomly I am terrified to drive it , I used to have so much confidence on a newer Hyundai .

NHTSA ID

11597478

Incident

Jun 26, 2024

The contact owns a 2020 Hyundai Elantra. The contact stated that the vehicle failed to start without approximately 15-20 attempts. The vehicle had since failed to start completely. There were no warning lights illuminated. The vehicle was towed to an independent mechanic where it was diagnosed that the starter had failed causing the engine to seize. The contact was informed that the engine needed to be replaced. The vehicle was then towed to the dealer and the contact was informed that there were two open recalls on the vehicle. The vehicle received the recall repairs however, the starter was not replaced. The manufacturer was made aware of the failure and the two unrelated recalls were confirmed with the VIN. Additionally, it was also confirmed that the replacement of the engine was no longer covered under warranty. The approximate failure mileage was 87,000.

NHTSA ID

11564362

Incident

Jan 2, 2024

Mileage

87,000 mi

PLEASE SEE ATTACHED PDF FILES

NHTSA ID

11520477

Incident

Sep 1, 2022

Tens of thousands of Hyundai's and Kia's are being stolen in under 2 minutes due to a design flaw Hyundai and Kia engineers failed to address. With a quick removal of steering column cover and a USB male end, thieves can steal your vehicle. This puts the public and law enforcement at risk as these thieves flee from police at high rates of speed and use these stolen Kia's and Hyundai's to commit other crimes.

NHTSA ID

11474015

Incident

Jul 14, 2022

Approximetly 8 months after purchase car stalled while sitting at RR tracks and traffic light. Replaced battery after stranded due to dead battery. After putting twenty dollars of gas car engine sputtered very loud as if it was running out of fuel this continues to occur. At departure engine stalls restarts and stalls repeats hyndai unavailable for at least 30 days and would not provide loaner or alternative for car with under 60k miles disabled. Enterprise car sales would not assist in trade or repair. Engine light appears then disappears. Headlights feature stopped working it is manual operation only. Collision warning activated on an empty roadway. Tire light illuminated Replaced 1 of 4 older mismatched tires. Car is unsafe due to early occurances of electrical, mechanical, engine and computer fail without warning. Enterprise car sales will not take car as trade in, Hyndai service appointments booked 30 to 45 day waiting period with no alternative repair or loaner car I have been affected financially and loan is defaulted since I am unable to work. Excessive time spent trying to trade in car, find repair facility, roadside. Car towed due to stalled unable to drive unsure about using car with no warning disabling issues.

NHTSA ID

11466818

Incident

May 31, 2022

My vehicle was stolen, due to known design flaws of Hyundai/Kia.

NHTSA ID

11442038

Incident

Nov 11, 2021

TL* THE CONTACT OWNED A 2020 HYUNDAI ELANTRA. THE CONTACT STATED THAT THE VEHICLE WOULD INTERMITTENTLY STALL UPON PLACING THE GEAR SHIFTER INTO REVERSE WITHOUT WARNING. THE CONTACT HAD TAKEN THE VEHICLE TO HYUNDAI OF JEFFERSON CITY (3215 MISSOURI BLVD, JEFFERSON CITY, MO 65109) WHERE THE RANGE SENSOR WAS REPLACED. THE CONTACT STATED THAT HE SOLD THE VEHICLE THE DAY AFTER THE SENSOR WAS REPLACED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VEHICLE WAS REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 2,000. THE VIN WAS NOT AVAILABLE.

NHTSA ID

11408131

Incident

Feb 2, 2021

Mileage

2,000 mi

I BELIEVE SOMEONE ELSE HAS LINKED INTO MY CAR USING AN APP, AND HAS ACCESS TO OPEN IT AND ALSO TAKE CONTROL OF THE BRAKES, ETC...

NHTSA ID

11374238

Incident

Sep 1, 2020

I STARTED TO HEAR A GRIDDING NOISE THAT WAS PROGRESSIVELY BECOMING LOUDER WHEN TURNING LEFT OR RIGHT WHILE DRIVING, FAST OR SLOW, HIGHWAY OR STREET, DOES NOT MATTER. I TOOK THE CAR IN AND THE DEALERSHIP HAD IT FOR A WEEK WHILE REPLACING THE STEERING ASSEMBLY COLUMN (NOT 100% SURE ON EXACT NAMES OF PARTS REPLACED). I GET THE CAR BACK AND THE STEERING PROBLEMS ARE WORSE. NOW THE STEERING WHEEL IS MOVING AROUND WHILE DRIVING. THAT LEVER THAT ALLOWS YOU TO ADJUST THE STEERING WHEEL DOES NOT WORK. I CALL HYUNDAI AND AM TOLD THEY ARE BOOKED AND CAN NOT GET MY CAR IN FOR ALMOST A WEEK. IT GETS TO THE POINT THAT DRIVING IS ALMOST IMPOSSIBLE SO I DECIDE TO TAKE THE CAR IN A FEW DAYS EARLY. AS I'M DRIVING ON THE HIGHWAY GOING ABOUT 70MPH THE STEERING WHEEL DROPS AND IS FLOPPING AROUND AND ALL POWER TO THE CAR GOES OFF MAKING STEERING EVEN WORSE THAN WHAT I THOUGHT WAS THE WORST IT CAN GET. NOW THE CAR IS IN THE SHOP FOR THE SECOND TIME FOR STEERING PROBLEMS AND NOW AN ELECTRICAL PROBLEM.

NHTSA ID

11319425

Incident

Mar 23, 2020

Mileage

11,000 mi