Hyundai Sonata 2020 — technical service bulletin
Bulletin 20-HA-003H · NHTSA communication 10182325 · issued Oct 23, 2020
Technical service bulletin
communication type
Visibility
component
2020
model years
1
vehicle entries
Official summary
Certain 2020MY Sonata vehicles (DN8A) may experience an inoperative air conditioning system with cold air not blowing from the vents. This condition may be caused by an electrical terminal connection in the engine room junction box. Follow the procedure in this bulletin to inspect and if necessary, repair the terminal in the engine room junction box.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.