2024 Hyundai Sonata electrical system problems
17 owner complaints filed with NHTSA name the electrical system on the 2024 Hyundai Sonata — 40% of all complaints for this model year.
What owners report
“May 23rd, 2026, vehicle dash and navigation screens went black while driving on freeway. May 26th, 2026, vehicle battery completely drained. Purchased new battery and the same thing happened. Took the vehcile 3x to Hyundai dealership, switched out battery for a brand new OEM one. June 10th, vehicle…”
filed Jul 11, 2026
“Intermittent issue. On startup, the hvac system cycles through the modes and gets stuck blowing on mixed mode (face and feet) regardless of what mode is selected. The problem is temporarily fixed by manually tapping the mode button until the desired mode is selected.”
filed Jun 30, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Certain 2024-2026MY Sonata (DN8) and 2024-2026MY Sonata Hybrid (DN8 HEV) vehicles may exhibit intermittent battery discharge condition due to the air conditioning controller not fully powering down after the vehicle is…
LA29-LA30 DCS · Warranty Program/Extension · issued Jul 14, 2026Certain Sonata (DN8) vehicles may exhibit intermittent battery discharge condition due to the air conditioning controller not fully powering down after the vehicle is turned off and parked. This bulletin provides the…
7/13/2026 TSB · Warranty Program/Extension · issued Jul 13, 2026This bulletin provides information related to the navigation and head unit software changes introduced in the 2026 1st Navigation Map and Software Update. The changes may vary depending on vehicle type, model, and…
26-GI-002H TSB · Service Bulletin/Repair Instructions · issued May 27, 2026Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink functions. This may be due to an occasional disconnection on Verizon’s communication network. Follow the procedures in…
26-01-035H TSB · Service Campaign · issued Apr 8, 2026Some Sonata (DN8) and Tucson (NX4/NX4A/NX4M) vehicles equipped with the 2.5L Theta III GDI engine may display a warning lamp and store Diagnostic Trouble Code (DTC) P2B59F0, which relates to the Integrated Thermal…
26-EM-009H TSB · Service Bulletin/Repair Instructions · issued Mar 24, 2026
Electrical System problems in other Sonata years
| Year | Reports | Share |
|---|---|---|
| 2023 Sonata | 12 | 14% |
| 2022 Sonata | 15 | 16% |
| 2021 Sonata | 16 | 13% |
| 2020 Sonata | 35 | 21% |
| 2019 Sonata | 12 | 8% |
| 2018 Sonata | 60 | 16% |
| 2017 Sonata | 65 | 9% |
| 2016 Sonata | 88 | 12% |
| 2015 Sonata | 166 | 15% |
| 2014 Sonata | 135 | 18% |
| 2013 Sonata | 260 | 14% |
| 2012 Sonata | 234 | 15% |
Other reported problem areas on the 2024 Hyundai Sonata
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.