Genesis G80 2017–2018 — technical service bulletin
Bulletin 19-AT-004HG · NHTSA communication 10158795 · issued Mar 5, 2019
Technical service bulletin
communication type
Engine and Engine Cooling
component
2017–2018
model years
4
vehicle entries
Official summary
This bulletin provides the procedure to replace the O-ring to the automatic transmission fluid (ATF) warmer connector on some vehicles which may exhibit a coolant leak between the ATF connector and engine side heater pipe.
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.