Genesis G80 2017–2018 — technical service bulletin
Bulletin 20-EM-003HG · NHTSA communication 10183956 · issued Nov 6, 2020
Technical service bulletin
communication type
Electrical System
component
2017–2018
model years
3
vehicle entries
Official summary
Certain G80 and G90 Genesis vehicles may experience DTC code P0597 for â Thermostat Heater Control Circuit/Openâ . This bulletin provides information on replacing the electric thermostat. No drivability issues are associated with this condition.
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.