Certain Sonata (DN8) and Sonata Hybrid (DN8 HEV) vehicles may experience battery drain due to the air...

Bulletin number

25-01-075H/076H DCS (TEB TEBA)

Component

Electrical system

Summary

Certain Sonata (DN8) and Sonata Hybrid (DN8 HEV) vehicles may experience battery drain due to the air conditioning controller not shutting down completely while the vehicle is parked and turned off. TSBs 25-01-075H (for Sonata vehicles) & 25-01-076H (Sonata Hybrid vehicles) provides instructions to perform a software update for the ATCU (Air Temperature Control Unit).

Owners of these vehicles have filed 26 complaints in the electrical category.