Certain Sonata (DN8) vehicles may experience battery drain due to the air conditioning controller not...
Hyundai technical service bulletin 25-01-075H TSB for 2024-2026 Hyundai Sonata.
- Bulletin number
- 25-01-075H TSB (TEB)
- Component
- Electrical system
- Summary
- Certain Sonata (DN8) vehicles may experience battery drain due to the air conditioning controller not shutting down completely while the vehicle is parked and turned off. This bulletin provides instructions to perform a software update for the ATCU (Air Temperature Control Unit).
Owners of these vehicles have filed 21 complaints in the electrical category.
Vehicles covered
- Hyundai Sonata 2024-2026 202420252026
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