2025 Hyundai Elantra problems

Filed Sep 14, 2026 · Airbags, Driver assistance · PA · crash · 2 injuries

My 2026 Hyundai Elantra at 3,300 miles experienced a severe frontal impact with 6g logitudinal deceleration due to uncommanded acceleration and complete brake blindness. Depiste this severe impact, neither airbags nor seatbelt pretensioners deployed. At -2.5 sec. prior to impact, the Forward Collision Avoidance Assist data drops off and goes completely silent. There were no warnings or alerts on the vehicle instrument cluster. This proves catastrophic CAN-bus network crash. Because the network crashes, the engine control unit (ECU) became digitally blind and incapable of registering the driver's physical brake applications. EDR telemetry captured erractic signal cascade from -1 sec to 0 sec impact. The accelerator pedal jumped to 70%, dropped to 0% at -0.5sec and teleported to 100% at 0 sec while the engine RPM increases from 2100 to 2400. No human foot can physically strobe a pedal from 70% to 0% and back to 100% in 0.5 sec while the engine RPM steadily increases. Hyundai deceptively using data generated by a glitched, crashed system to blame driver error and evade product liability. Hyundai even claimed non-deployment of airbag system was "appropriate" at 6g longitudinal deceleration for a frontal impact. Damages to the vehicle was estimated at $10,254.67 by State Farm Ins. Police report confirmed via traffic camera footage that my car stopped at a solid red light behind another vehicle, then it suddenly moved forward, just as the driver described. The driver's foot was phyically on the brake pedal, the engine revved up, the car moved foward on its own and crashed into the vehicle in front despite the brake pedal was depressed throughout the entire episode.

Filed Jul 11, 2026 · Electrical, Engine · CA

The control panel /radio panel has had a glitch or blacked out screen where it wouldn't come back on for a few hours and I could smell electrical or plastic burning after it did come back on after that the radio started changing channel on its own while screen glitched on and of with saturated static wrench on my dash comes on periodically. The tires pressure unit never has the same amount of air in it according to the gauge. Even though I have made it so that they were all equal several different times. The car feels like it misfires when that it's 9500° outside and you go for any sort of extended drive past 10-15, mi. When the air conditioner is on high, the fuel economy doesn't seem to match the way it's supposed to and some of the programming is missing since the last time it was serviced out of the control panel. Some options that we're supposed to have been there aren't there anymore and I'm pretty sure that when I use the remote to roll down my windows they're all supposed to roll down. Well only one of them does and it doesn't roll it back up the way it's supposed to when that it is foggy out. My camera system says that I'm about to get into a crash and starts blinking at me and beeping and flashing saying that I'm about to crash because my forward safety system or my rear safety system is not working properly. And yes I've let them know about these things My car has less than 25,000 mi on it and the problem started probably 3 months after I got it. When I first got it there was a bunch of little pits in the glass or I want to say hairline bubbles. I don't know what else to call them but they replaced my windshield. They didn't replace the back window that still has them

Filed Jul 5, 2026 · Seat belts · TN

The rear driver‑side seat belt in my 2025 Hyundai Elantra will not extend or retract. The seat belt was used under normal conditions, with no excessive force, misuse, or accident that would cause damage. It suddenly stopped functioning and is now completely inoperable. A non‑functioning seat belt is a serious safety hazard because passengers cannot be properly restrained. I brought the vehicle to the dealership, but they refused to repair or replace the seat belt under warranty. They claimed the belt was “overextended,” despite the fact that it was only used normally and has never been involved in any incident that would cause such damage. The dealer’s refusal to address a critical safety component leaves the vehicle unsafe for passengers. I am reporting this issue because seat belt failure should not occur under normal use, and the manufacturer/dealer is declining to correct the defect.

Filed Jun 29, 2026 · Acceleration, Airbags · 3,300 miles · PA · crash · 1 injury

The contact owns a 2025 Hyundai Elantra. The contact stated that while stopped at a red light with the precise pressure on the brake pedal, the RPM became elevated, the brake pedal was released, and as a result, the vehicle increased in speed and crashed into the rear of another vehicle. The contact's entire front side impacted the rear of another vehicle. No property damage was reported. The contact stated the vehicle came to a complete stop upon impact and shut off. The contact stated the air bags did not deploy. The vehicle was towed to the residence. The contact stated that no warning illuminated before and after the incident. A Police report was filed. The contact sustained an injured knee, neck, and back and has experienced emotional distress. Medical attention was not received. The dealer was notified of the failure. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 3,300.

Filed Jun 16, 2026 · CA

The vehicle splash safety shield has been a big problem . A few times it has made bump noises while slowly driving through speed bumps slowly or on street where there is a low crossway. Today it started making noise and I did not realize that it had loosen . While parking it made a grinding noise underneath the front. While angling to park it jammed underneath the car and would not allow the car to move forward or back. I’m lucky it didn’t happened while driving in the street or fwy. A friend help me to remove it from underneath. The safety shield is not strong nor sturdy I have the damaged splash safety shield in my possession.

Filed Apr 9, 2026 · Driver assistance · 10,308 miles · OH

The contact rented a 2025 Hyundai Elantra. The contact stated that while driving 80 MPH with the cruise control activated, the braking system failed to engage, causing the contact to manually depress the brake pedal to stop the vehicle. A dealer was contacted. The vehicle was not taken to a dealer or independent mechanic to be diagnosed or repaired. The failure had occurred three times. The manufacturer was notified of the failure and opened a case. The approximate failure mileage was 10,308.

Filed Mar 23, 2026 · Fuel system · GU · 1 injury

The contact owns a 2025 Hyundai Elantra from a loaner vehicle program. While driving at an undisclosed speed, the contact started to choke. There was no warning light illuminated. The contact’s hands became very sticky. While continuing to drive, the contact developed a severe headache, and the contact’s hands started swelling, and there were yellow marks on the fingers, bumps on the forehead, and swollen lips. Due to the symptoms, the contact sought medical attention at an emergency room. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The contact stated that the vehicle was unsafe to drive due to the health-related complications experienced. The contact believed that the vehicle might have been improperly provided with a failing chemical, Xenon gas, which caused the health issues. The contact stated that using the heater caused a chemical reaction, resulting in fumes that were inhaled. The failure mileage was not available.

Filed Feb 2, 2026 · Brakes · CA

Anytime vehicle is over 35mph brakes fail, vehicle has to coast to a lower speed before you can engage braking. When you attempt to brake at the higher speeds, it click click clicks repeatedly while depressed fully, a mild grind and force against foot from pedal once you coast enough it suddenly will make the sounds less then all the sudden brakes work. Called one dealer (Hyundai sherman oaks CA) and as soon as we said brakes don't work over 35mph were hung up on, twice. The exact same words. Then downtown LA Hyundai basically said we don't accept tow one right now which obviously a non braking car won't drive. Hyundai of America is the ones that called downtown and connected us to them aware of the issues and time frame as we had just purchased the car from carvana and it was this way on delivery. Now returning vehicle to carvana since we can't seem to get a dealer to repair even though it has warranty.

Filed Feb 2, 2026 · Airbags · MD

I am writing to formally report a safety concern regarding my vehicle involved in a car accident on December 19, 2025. Details of the incident: Vehicle Make/Model/Year:Elantra SEL Sport 2025 Vehicle Identification Number (VIN): [XXX] Date of Accident: December 19, 2025 Location of Accident: Dec 16,2025. Silver Spring, MD the Takoma Park. City of Takoma Park Police 7500 Maple ave Takoma 20912 Nature of Accident: Rear-end collision; the back of my vehicle was pushed in. Airbags: Did not deploy during the collision. Injuries Sustained: Significant back injury requiring medical attention. Despite the collision, the vehicle’s airbags failed to deploy, which I believe is a safety defect. I am concerned that this poses a serious risk to myself and other passengers. I am requesting that the federal safety agency: Investigate the potential airbag defect in my vehicle. Determine if there are recalls, safety notices, or manufacturer defects associated with this make and model. Provide guidance on any additional actions I should take regarding safety and potential claims. Attachments: Photos of vehicle damage Accident report / police report XXX Medical documentation of injuries I appreciate your prompt attention to this matter. Please let me know if you require any additional information. Sincerely, INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Feb 1, 2026 · Engine · OH · crash · 2 injuries

Car was operating fine, then when we got on the highway, we noticed the check engine light had come on but were unable to get off the highway. The vehicle then began slowing down despite pressing down on the gas pedal. Vehicle continued to slow to about 15mph and we were hit by another car.