The contact owns a 2024 Hyundai Sonata. The contact stated while driving 35 MPH, the check engine warning light illuminated. The vehicle was taken to the dealer to be diagnosed. The vehicle was diagnosed with fuel injector failure. The vehicle was repaired but the failure persisted. The contact stated that on another occasion, the check engine warning light illuminated, and the contact turned off the vehicle. The contact restarted the vehicle after several minutes and the vehicle started working properly. The vehicle was then taken to a dealer and was diagnosed with fuel consumption failure. The vehicle was repaired for the most recent failure. The contact then stated that the check engine warning light illuminated on and off a third time. The manufacturer was made aware of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 15,395.

Source: NHTSA complaint ODI #11642278 · view all complaints for this vehicle at nhtsa.gov

The speedometer in this car is extremely inaccurate and inconsistent with its accuracy. On some occasions, the speedometer can indicate a +-2mph variance at any given speed (good), while other times, the speedometer can indicate a +-6mph variance at any given speed. (bad) The vehicles true speed was verified by GPS speed data and by manually calculating given each individual wheel speed in the car. Both measured speeds confirmed that the vehicles speedometer was off by 5-6mph. No modifications performed to the car. This is a serious safety hazard as the driver is given inaccurate information regarding the actual speed of the vehicle and can lead to accidents.

Source: NHTSA complaint ODI #11633455 · view all complaints for this vehicle at nhtsa.gov

With a front seat passenger, using the autos seat belt, at the height of 5’ 6” and a 145lbs. The airbag off light will come on, indicating the airbag system has been turned off. This is intermittent and at times the issue can be resolved with pulling the vehicle over. Turning the engine off, asking the passenger to step out of the vehicle (at times on the shoulder of a major interstate), closing the front passenger door. To then reopen the car door, set again in the front passenger seat, secure seat belt and the driver starts the car. Sometimes this will cause the light to go off, indicating the airbag system is on. However, this does NOT always work. During a normal transit the airbag will randomly come on and off.

Source: NHTSA complaint ODI #11598135 · view all complaints for this vehicle at nhtsa.gov

Fractured windshield from rock strike. Not Hyundai responsiblity. 2 1/2 feet from mirror thru driver view. ISSUE IS: Safelite does not have aftermarket glass. Car is 5 months old. Hyundai says they have zero replacement glass in United States. I can order ($1500), and wait appx 2-3 months. It is illegal both in CA where I reside and federally to drive with fractured windshield. How is it that auto manufacturers are able to not keep safety items reasonably in stock? Covid is long over, I’m tired of hearing “supply chain” excuse. A brief online review shows Kia/Hyundai has had windscreen issues ongoing for years. I’m not even certain that all of my mirror resident safety features are working properly.

Source: NHTSA complaint ODI #11614510 · view all complaints for this vehicle at nhtsa.gov