2021 Hyundai Elantra Driver assistance Problems

I am filing a complaint regarding a safety recall repair for my vehicle that is not being handled in a timely or reasonable manner by an authorized dealership Delray Hyundai 655 NE Sixth Ave, Delray Beach. Vehicle Information: 2021 Hyundai Elantra SE VIN: [XXX] Recall Information: NHTSA Recall #24V879000 Recall #271 – Backup Camera Inspection/Replacement This recall involves a failure of the backup camera system, which directly impacts visibility while reversing and poses a safety risk. The manufacturer has indicated that a remedy is available; however, the dealership I contacted is refusing to perform recall repairs on weekends and is only offering an appointment more than a month out (scheduled for May 4th). Given that this is a safety-related recall affecting rear visibility, this delay is unreasonable and places me at continued risk while operating the vehicle. I rely on my vehicle daily and should not be required to wait an extended period for a safety recall repair that is already available. Additionally, limiting recall repairs to weekday-only appointments creates an unnecessary barrier for consumers who work standard business hours. I am requesting that this issue be reviewed, and that appropriate action be taken to ensure dealerships are providing timely access to safety recall repairs, especially when the defect impacts vehicle safety. Thank You INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11731788

Incident

Apr 17, 2026

How are you? The problem with our Hyundai involves the engine and engine control system. My vehicle is equipped with the same 2.0-liter Nu GDI engine that Hyundai recalled in other 2021 and 2022 vehicles for engine stalling, internal engine damage, and fire risk. Although my VIN is not currently listed, the engine itself is identical to the recalled engines and is available for inspection. Since early ownership, the vehicle has repeatedly hesitated, surged, and jumped when accelerating from a stop, especially at stoplights and intersections. This unpredictable behavior creates a clear safety risk because the vehicle does not respond consistently in traffic and increases the risk of a collision. These issues are ongoing and reproducible under normal driving conditions. The symptoms have occurred many times and were not isolated events. The vehicle has been presented for service and the issues described. No misuse or maintenance-related cause has been identified. Prior to and during these events, the vehicle has shown reduced power, inconsistent throttle response, and hesitation. At times, warning lights and engine behavior consistent with internal engine distress have appeared. These symptoms match those described by Hyundai, Consumer Reports, and NHTSA in recalls involving this same engine. Hyundai has already acknowledged that this engine defect can lead to stalling, seizure, oil leaks, and fire, and that warning systems may not fully detect the problem until damage has already begun. Because my vehicle uses the same recalled engine and exhibits the same failure characteristics, I believe it should be reviewed as part of a recall expansion or defect investigation.

NHTSA ID

11712831

Incident

Jun 3, 2025

The Forward collision warning light comes on randomly at times and disables the system. It’s done this on 3 occasions. No one has inspected the vehicle. I was told everything was normal. No injuries involved. The problem has occurred 3 times now with code c1620078. The history codes show this has happened to the previous owner as well. I bought it in 7/2025 and it happened driving it home from buying it, in 11/25, and 12/10/25

NHTSA ID

11704616

Incident

Jul 5, 2025

Forward sensors in vehicle have been failing while driving rain or snow since 2021; would go way on its own. Most recent failure has occurred with no debris or obstruction to sensor on a clear and sunny day. The sensor failure has been stagnant and will not go away, increasing a safety concerns while driving.

NHTSA ID

11688392

Incident

Sep 6, 2025

Front sensor problem. Sensor Check Forward Safety System. ABS, Auto Hold light came up out of no where. No damage to sensor.

NHTSA ID

11664871

Incident

Jun 4, 2025

Unintended acceleration is happening. After about 15-30 minutes of driving, accelerating from a stopped position becomes very difficult in the sense that the vehicle does NOT accelerate when gas pedal is pressed. This can be extremely dangerous as you do not know when the vehicle will no longer accelerate and could get hit when crossing an intersection or turning onto any road at all. ESC warning light came on today and vehicle will no longer start but goes into auxiliary mode. This is not the first time, second, third, nor even 5th time a report on this vehicle has been made and with each report more issues are arising with seemingly NO fix in sight.

NHTSA ID

11662054

Incident

Sep 1, 2024

The camera started to fail for a few days and then it was fine, then the blind spot started to fail and then the camera was useless.

NHTSA ID

11643172

Incident

Sep 10, 2024

High Beam Assist, Check Rear Cross-Traffic Safety System, Check Blind-spot safety system, Check forward safety system, Check Lane Keep Assist System, Traction Control disabled. ALL of those messages came on while driving. Rear backup camera quit working, reverse lights do not engage. No remedy for recall still. Vehicle is unsafe to operate without recall being fixed. This is my only transportation, FIX it!!!

NHTSA ID

11631600

Incident

Sep 1, 2024

Radar equipped to front of vehicle has malfunctioned, disabling all forward safety systems and adaptive cruise control. Without this equipment functioning, cruise control is completely disabled and the vehicle will not automatically brake or provide forward warnings. The vehicle component has not been inspected, but this is a recurring issue amongst other owners of this model. There is a warning lamp that turns out that states "Check Forward Safety System"

NHTSA ID

11626822

Incident

Aug 1, 2024

Back up Camera. When reversing cannot see out back window do to incline of glass making hard to reverse. The problem has not been reproduced or confirmed by a dealer or independent service center. The vehicle or component has not been inspected by the manufacturer, police, insurance representatives or others. There was not any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear.

NHTSA ID

11621366

Incident

Jul 1, 2024

Several times, including yesterday, my forward collision avoidance engaged by braking suddenly and strongly and INAPPROPRIATELY, almost causing me to be rear-ended. I was nowhere near the car in front of me, and fortunately due to traffic was traveling below the speed limit. This seems to happen whenever there is an overpass above the road. I have reported this to Hyundai, and they don't seem very concerned. Very dangerous. I would think there could be a software or sensor update that can correct this situation.

NHTSA ID

11614945

Incident

Sep 15, 2024

Rear backup camera suddenly stopped working and when in reverse the sensors kick in and breaks the vehicle when there's no object or vehicle behind. Also the code for the backup sensor came up but dealer didn't do anything.

NHTSA ID

11604198

Incident

Jul 11, 2024

One day I was on the highway driving and the front collusion safety warning appeared. I thought the warning went off because the sensor was dirty due to dead bugs. However, I pulled over and the sensor did not appear dirty. After awhile the sensor went off on its own. Then a few weeks late the front collusion safety warning appeared again while I was driving on the highway. The warning has not fixed itself. I cannot use my cruise control. I took it to the Hyundai dealership and they told the me senor is off alignment and it will cost $500 to repair because they have to remove the entire bumper. I have seen on Hyundai forums this is a common problem.

NHTSA ID

11603543

Incident

Oct 11, 2023

Over the past 4 months, this car's safety sensors have randomly activated on 4 different occasions. The car will suddenly brake when this occurs, which puts me and the other drivers around me at risk of crashing. Each time, I've taken it to a Hyundai dealership for repairs. They always claim they can't recreate the issue and don't fix anything. I've provided the dealer with pictures and videos of the warning lights on my dashboard. It doesn't seem to help them diagnose the problem.

NHTSA ID

11598893

Incident

Feb 14, 2024

My car has two warning lights on my dashboard. First one is Check Foward Safety system. Second one is Check Smart Cruise Control System. Both of them turned on when I was driving in the middle of a highway. These warning lights activated out of the blue, without any unusual circumstances.I cannot use my smart cruise control system and the car is not able to alert me about forward collision. This issue has already been addressed through a recall for my vehicle's model and year in Korea. My vehicle was produced in Korea and was imported to the United States; however, Hyundai has not issued a recall regarding the same problem in the United States. This is a safety concern, and Hyundai should repair it free of charge, and the company should compensate customers who have already undergone repairs for the repair costs.

NHTSA ID

11596221

Incident

Apr 11, 2024

Forward collision sensor suddenly failed to function properly. This issue was NOT caused by any damage or a collision; it happened while driving on the highway. Hyundai does not fix this under any warranty, even though the issue was not caused by damage. It appears to be a bad quality/faulty sensor.

NHTSA ID

11583833

Incident

Mar 5, 2024

Pop up display "Check Forward Safety System and Check Smart Cruise Control System" during driving on the free way with no reason. 3 month ago same thing happened. fixed that problem with re-calibration to the front sensor. But. same problem happen today. This problem is recalled in south korea on last year.

NHTSA ID

11576260

Incident

Mar 8, 2024

vehicle only has 14k miles and is showing an error message for "check forward safety system" and "check smart cruise control system" after some research found this is a very common issue with multiple Elantra's where the front radar goes bad causing safety systems such as automatic braking/acceleration, and cruise control to not work. this is a big safety issue that has been reported by many drivers. the error happened going a steady 40mph with no other cars around on an open road. nothing was hit the radar just suddenly failed

NHTSA ID

11562509

Incident

Dec 25, 2023

While my son was driving on the highway, the smart cruise control suddenly stopped working with "Check forward safety system" and "Check smart cruise control system".

NHTSA ID

11559939

Incident

Nov 27, 2023

When driving at 55MPH with cruise control on, the car suddenly accelerated to 75MPH, this happened on the open road and was able to keep under control. Auto has less than 10,000 miles. I will be contacting Hyundai customer service for a case number on this incident. First indication of a problem was cruise control, auto braking failed iin June of 2023. This follows a replacement of defective front radar unit by Hyundai which was replaced at 8295 miles on July 26, 2023. This problem first occurred in late June/early July of 2023. There was no warning.

NHTSA ID

11558627

Incident

Dec 5, 2023

I bought my 2021 hyuandai elantra on September 7 2023 almost 2 months ago and the emergency braking system comes on pretty often while driving my vehicle on the road and freeway so the brakes will lock on me whenever the car is in drive which could cause a serious crash and probably cause damage over time to brake pads and other things this problem has occurred over 5 times within 2 months

NHTSA ID

11558126

Incident

Sep 20, 2023

On three occasions while turning out into an intersection my steering wheel will lock up and my forward collision warning system will engage and my just stop in the road. Out of those three times, my car has been towed to the dealership twice. The dealer has been working very hard to identify the issue while working with Hyundai tech services. They have poured countless hours and money into this car and still have not been able to identify and correct it. My vehicle has become a deathtrap waiting to happen.

NHTSA ID

11541394

Incident

Jun 2, 2023

Forward Collision warning system continues to engage dangerously and inappropriately, almost causing me to be hit from behind, as I always leave plenty of room in front. This is very scary and very dangerous. Software updates have not remedied the situation. Hyundai motors seems completely uninterested.

NHTSA ID

11540066

Incident

Aug 5, 2023

Driving on highway, dashboard reported "Check Forward Safety System" and "Check Smart Cruise Control System". The car then disabled both while I was driving. This has happened 6 times to me. The first time I brought it to dealer and they stated it was a calibration problem. They reset it and I had no problems for a while. The problem has occurred 5 times more and will stay on for about a week or so and then just go away. It works again and then occurs again. So, it is intermittent and recurring. Each time the diagnostic code reported by the software to my phone is C162078. I see the 2018 Kona had the same exact problem and a software update TSB was put out there. ( https: [XXX] ) INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11538377

Incident

Mar 9, 2023

My father was involved in a car crash, front end into a wall. Apparently, the front end collison warning did not sound and the auto braking system never engaged. Prior to the accident, the front end collsion warning would come on intermittently, but the dealer checked it out and stated it was working normally (San Bruno Hyundai). AFter the collision repair, the warning light comes on and the car has been at Bakersfield Hyundai now for over a week, but they can't find anything wrong with the warning system, but the system does not function (no warning of collision and auto braking does not engage). Our accident total was $10,000, lucky, no one was seriously injured.

NHTSA ID

11537265

Incident

Apr 19, 2023