Hyundai Sonata no deployment problems

Filed Oct 5, 2026 · Airbags · GA

The passenger frontal airbag deployed on its own while the vehicle was being driven, with no collision or impact that the driver is aware of. The driver airbag did not deploy. The incident occurred on October 4, 2026, at about 11:14 PM, shortly after the driver refueled at a gas station and was heading toward the highway. The airbag tore open the dashboard panel and cracked the windshield from the inside where the bag struck the glass. The driver brought the vehicle back to the gas station and it was towed. It has not been driven since. Safety risk: The sudden deployment startled the driver and the cracked windshield reduced visibility while the vehicle was moving. Anyone in the passenger seat would have been struck at close range. Recall history: This vehicle received the Recall 174 / the federal safety agency 18V‑137 airbag control unit remedy (ACU main wiring harness installation, part 91700-4R100-QQH) at a Hyundai dealer in September 2025, at about 305,800 miles. The deployment occurred about 13 months and 18,400 miles later, at 324,243 miles. Warning signs: No airbag warning light or other warning appeared before the deployment. The vehicle was serviced at a Hyundai dealer about one month earlier (oil change and multi-point inspection), and no airbag or restraint-system problem was reported. Inspection: The vehicle is at a Hyundai dealer and is available for inspection. We have asked that the airbag control unit, airbag module, and stored crash data be preserved. A case has been opened with Hyundai Motor America. As of this report, the vehicle has not been inspected by the manufacturer, police, or an insurer, and no dealer has confirmed the cause. Cause: UNKNOWN. Our best assessment is an electrical fault in the airbag control unit or its wiring, which received recall work in 2025.

Filed Jan 23, 2026 · Airbags · TX · crash

I was involved in a low-speed collision at a residential intersection after stopping at a stop sign and beginning to proceed. Going under 5 mph, I braked immediately, but contact occurred. Despite relatively minor front-end damage, the driver steering wheel airbag and driver knee airbag deployed. The passenger front airbag did not deploy, and no side or curtain airbags deployed. There was no significant intrusion into the engine compartment or passenger cabin. I am submitting this report due to concern that the driver airbags deployed in a low-speed impact that did not appear severe enough to warrant deployment. Pictures attached

Filed Jan 16, 2026 · Airbags, Body · AL · crash · 1 injury

I was involved in a severe motor vehicle collision in a 2017 Hyundai Sonata. The airbags failed to deploy during the crash. I sustained serious injuries and was transported from the scene by EMS. This vehicle has known safety recalls, and I believe the airbag non-deployment may indicate a safety defect.

Filed Jan 3, 2026 · Airbags, Driver assistance · PA · crash

Airbags did not deploy no indicator light came on before nor after I was struck from my driver side front area and yes it is available for inspection upon request. My safety along with my sisters safety was put at risk due to the negligence and cheapness of the dealership I purchased the car from also from there misleading information and improper inspection before selling me the car Car has not been reproduced or confirmed The car was inspected by a third party appraisal company for damages amounts There were no lights on at all before the accident and I am pretty certain that the dealership cleaared the codes before selling me the car

Filed Dec 5, 2025 · Airbags · PA · crash

I am reporting a serious safety defect involving a vehicle purchased from [XXX] on [XXX]. The vehicle was later involved in a collision that resulted in a total loss. According to the police report, I was not at fault. During this crash, none of the airbags deployed, which indicates a possible defect or prior undisclosed issue with the airbag system. The vehicle was sold with a warranty and was represented as safe and road-ready. The dealership also provided and managed the full-coverage insurance policy. However, the total-loss claim has been delayed and obstructed, and the dealership has not taken responsibility for ensuring the vehicle’s safety or functionality. There is significant concern regarding the condition of the vehicle prior to sale. Records show that Byrider cleared the vehicle’s computer on July 16, 2025, less than a month before purchase. This may have erased important diagnostic information, including any prior airbag-system faults. Clearing the computer in this manner raises questions about whether a known issue was hidden or whether mandatory diagnostic data was removed before the sale. At the time of purchase, I signed an airbag disclosure form in which Byrider stated: •They had “no knowledge of any reason why the airbag system would not operate properly,” and •They “cannot guarantee that the airbag system will deploy in the event of an accident.” Despite this disclosure, the fact that the airbags did not deploy in a crash severe enough to total the vehicle suggests a significant safety defect, potential misrepresentation, or a failure to comply with federal safety requirements. Airbag non-deployment in a total-loss collision indicates a system failure that poses a serious risk to consumers. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Nov 6, 2025 · Airbags · TX · crash · 3 injuries

On September 25, 2023, I was involved in a motor vehicle collision while driving my Hyundai Sonata 2016, during which the front driver-side airbag failed to deploy despite the impact being significant enough to cause injury. This non-deployment represents a malfunction of the airbag system, including its sensors and deployment components, and aligns with issues already reported in class-action complaints involving Hyundai vehicles, making my case further evidence that an airbag defect exists. Because the vehicle was declared a total loss by my insurance company and later sold at auction, the physical component is no longer in my possession now; however, I retain documentation on accident-related records that clearly show the airbag did not deploy. The failure of this critical safety system placed my safety at direct risk because the protective barrier intended to reduce impact forces was absent, resulting in greater injury than would reasonably be expected had the system functioned properly. The problem has not been reproduced yet because the vehicle was transferred to insurance immediately after the incident and was not repairable. But working with accident reconstruction engineers on this matter. Prior to the crash, the vehicle displayed no warning lights, SRS messages, or other symptoms indicating an issue with the airbag system, and at no time before the collision was I alerted to any malfunction that would have suggested the system would fail at the moment it was most needed.

Filed Sep 2, 2025 · Airbags · FL · crash · 1 injury

Airbags failed to deploy. I was involved in a hit and run accident. Vehicle has not been inspected. I had a recall done on it with paperwork confirming it was fixed. I have 4 herniated discs in my back and neck.

Filed Aug 14, 2025 · Airbags, Electrical · TX · crash · 1 injury

Power relay has been replaced several times, air bags did not deploy with either wreck and loss control of steering causing a crash which bent the frame. Hyundai never once contacted me regarding this defective car they replaced motor in because of knock sensor and im lucky to be alive. On one of the accidents in February there was an error message that popped up right before I had the wreck and it was an error message wrong with the cars transmission system or something like that I had the dealership who said there was no codes on that car and I had my own personal mechanic who had codes pop up on that car that the dealership hid

Filed Aug 8, 2025 · Airbags, Driver assistance · TX · crash · 7 injuries

During a front end collision the car did not auto brake and the air bags did not deploy. The car has been totaled and is currently at a dealership for insurance appraisal.

Filed Nov 30, 2023 · Airbags, Brakes · 185,000 miles · KY · crash · 2 injuries

The contact owns a 2004 Hyundai Sonata. The contact stated her fiance was driving 20-25 MPH on a steep hill with her in the front passenger's side seat. The contact stated that her fiance depressed the brake pedal to come to a complete stop at the stop sign, but the brake pedal went down to the floorboard, and the vehicle failed to respond. The contact's fiance veered to the left and intentionally hit a telephone pole to avoid crashing into a parked vehicle, and to prevent a more severe accident from occurring as the road was significantly steep. The brake warning light was illuminated. The air bags failed to deploy. The contact sustained a seatbelt mark. The contact's fiance was not wearing a seatbelt and hit his head against the windshield. The contact's fiance sustained a concussion, a laceration on the chin, a chipped front left upper tooth and bruises on the bottom teeth. The ambulance transported both the contact and her fiance to the hospital, where they received medical assistance. A police report was filed. The vehicle was towed to a tow yard. The dealer was not notified of the failure. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure, and a case was opened. The failure mileage was approximately 185,000.