2024 Hyundai Sonata: Electrical System complaints
Owner-reported issue (NHTSA complaints, not a recall)
Symptoms
NHTSA has 18 owner complaints for the 2024 Hyundai Sonata that list the electrical system component. Complaints are individual owner reports, not verified defects.
Examples:
- NHTSA complaint ODI #11756636 (filed 08/13/2026): “The entire dash cluster including the radio display cuts off and back on while driving. the only way i can describe it, is that the car seems to act like it was turned off then back on again. initial lights when you start the car come on, seatbelt lights, initial startup dash lights, headlight indic…”
- NHTSA complaint ODI #11749769 (filed 07/11/2026): “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 …”
- NHTSA complaint ODI #11747323 (filed 06/30/2026): “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.…”
Likely causes
These complaints do not establish a single root cause; read the examples above and get a diagnosis.
Fix, in plain English
No single fix is established by these reports. Check your VIN for open recalls at nhtsa.gov/recalls, ask a dealer about technical service bulletins (TSBs) or extended warranty coverage, then have the system diagnosed.
DIY difficulty: Moderate
Finding and splicing chewed wiring is doable with a multimeter and patience but can be time-consuming; harness replacement is pro work. (Our assessment.)
Cost
No sourced cost range for this issue. Get a written quote after diagnosis.
Typical parts (search links, no affiliate codes)
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Sources
Page last updated .