2017 Hyundai Sonata: airbag warning light

Filed Jun 22, 2026 · Electrical, Engine · CA

My 2017 Hyundai Sonata SE, equipped with the Theta II 2.4L GDI engine, is experiencing severe powertrain failures including rhythmic metallic engine knocking, catastrophic oil consumption, and un-commanded surges/jumping in speed while driving. These symptoms manifested following an unauthorized engine replacement performed by Hyundai of El Cajon under Repair Order [XXX], where the dealer covertly outsourced my vehicle to a third-party shop (Legacy Motor Works) to install an unverified used salvage engine block rather than a certified factory assembly. This vehicle is a Class Vehicle under In re: Hyundai and Kia Engine Litigation (Case No. [XXX]), and the KSDS software update (Campaign 953) was successfully completed on my vehicle in 2019. The engine knock, surging, and oil consumption are consistent with the known connecting rod bearing failure defect described in the federal safety agency investigation PE17-007. The dealership is currently denying warranty coverage, citing a mileage limit that does not exist under my Lifetime Powertrain Warranty, and they are withholding physical documentation of the repair terms. The vehicle is also experiencing secondary safety failures, including a continuous airbag SRS warning light (two years) and electrical shorts caused by the salvage-yard alternator installation, which have destroyed 4 to 5 car batteries. This engine failure represents a significant safety hazard, as the vehicle periodically loses power and surges without driver input. I am requesting that the federal safety agency investigate this pattern of warranty denial, parts-sourcing fraud, and the safety risks posed by this substandard engine installation. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jul 20, 2025 · Airbags · CA

The airbag light has been on for years. Also, the controllers on the steering wheel stopped working, first left side, 6 months later followed by right side. I’ve been told it’s due to a faulty ring inside or under the steering wheel. Worried to drive with faulty airbag.

Filed Apr 8, 2024 · Airbags · CT

UNKNOWN. Airbag light on for no reason

Filed Sep 28, 2023 · Airbags · 38,000 miles · IA

The contact owns a 2017 Hyundai Sonata. The contact stated that the air bag warning light was illuminated. The contact stated that he was concerned for his safety while operating the vehicle. An undisclosed dealer was notified of the failure and the contact was informed that the vehicle was not covered under warranty and the contact was advised take the vehicle to the dealer. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 38,000.

Filed Sep 2, 2022 · Airbags · IA

Airbag warning light activated on vehicle on or around August 15th of this year. Vehicle was in normal operating condition, and had not been involved in any accident. Vehicle was taken to Hyundai dealer for service. Dealer diagnosed issue as failed driver's side airbag. Airbag replacement was required at owner expense, not covered under manufacturer warranty (as confirmed with the manufacturer). I am concerned as consumer that the standard safety equipment of the vehicle failed under normal operating conditions, requiring expensive repair in order for consumer to restore safety of the driver. Vehicle has been repaired at dealership and can be made available for inspection if desired.

Filed Sep 23, 2021 · Locks · FL

The contact owns a 2017 Hyundai Sonata. The contact stated that as she attempted to place her groceries into her vehicle, the trunk failed to open as needed. The contact was finally able to open the trunk; however, the trunk failed to shut with the trunk warning light illuminated on the instrument panel. The contact had taken the vehicle an independent mechanic who was able to make a temporary repair to the trunk latch. The contact then received a recall notification for the federal safety agency Campaign Number: 21V619000 (Latches/Locks/Linkages) however, upon speaking with the manufacturer, the contact was notified that the parts were not yet available. The contact also mentioned that the passenger’s side air bag was exposed; however, no airbag warning light was illuminated on the instrument panel. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The vehicle had yet to be repaired. The failure mileage was unknown. Parts distribution disconnect.

Filed Jun 17, 2019 · Airbags · 67,879 miles · TN

Tl* the contact owns a 2017 hyundai sonata. While driving approximately 55 MPH, the air bag warning indicator began to flash and remained lit. The vehicle was taken to an independent mechanic, but the cause of the failure could not be determined. The dealer and manufacturer were not notified of the failure. The vehicle was not repaired. The approximate failure mileage was 67,879.