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.

Source: NHTSA complaint ODI #11764142 · view all complaints for this vehicle at nhtsa.gov

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

Source: NHTSA complaint ODI #11749730 · view all complaints for this vehicle at nhtsa.gov

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.

Source: NHTSA complaint ODI #11747113 · view all complaints for this vehicle at nhtsa.gov

Excessive vibration starting at 50 MPH. Its so bad that you hand becomes numb after one hour of driving. The vibration and shake gets so bad over 65 MPH that it becomes unless for a long trip. Vibration is happening on a 2025 Hyundai Elantra hybrid blue trim after 2,000 milles on a brand new vehicle purcahsed 2 months ago from Platinum Hyundai in Tracy, CA. Took it back to the same dealer twice for repairs. First they did wheel balance, and second time they did alignment. After both repair they said issue was fixed, but nothing changed, as it continues the same level of vibration over 50 MPH. Issue still presist and now Platinum Hyundai dealership in Tracy, CA says that is normal. If you are having same issue, please file complaints with NHTSA, so maybe they can do a recall on the vehicles. Hyundai Corporation of America is useless, as selling defective vehicles! THIS IS PERFECT EXAMPLE WHY I SHOULD HAVE BOUGHT AMERICAN QUALITY MADE VEHICLES, instead of JUNK FROM HYUNDAI!

Source: NHTSA complaint ODI #11713138 · view all complaints for this vehicle at nhtsa.gov

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.

Source: NHTSA complaint ODI #11748350 · view all complaints for this vehicle at nhtsa.gov

Vehicle’s sunroof glass spontaneously exploded while driving. No rock or other foreign object impacted it. Interior shade below glass was closed at the time of the incident. Loud pop heard. Glass appeared blown up and out from explosion. Vehicle was a rental vehicle owned by Enterprise Car Rental.

Source: NHTSA complaint ODI #11682837 · view all complaints for this vehicle at nhtsa.gov

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.

Source: NHTSA complaint ODI #11744652 · view all complaints for this vehicle at nhtsa.gov