Genesis G80 2017–2020 — technical service bulletin
Bulletin 23-01-037HG · NHTSA communication 10238378 · issued Jun 9, 2023
Technical service bulletin
communication type
Engine and Engine Cooling
component
2017–2020
model years
4
vehicle entries
Official summary
Certain 2017-2020MY G80 vehicles may exceed evaporative emissions standards due to Onboard Refueling Vapor Recovery (ORVR) system. To correct this symptom, install an auxiliary canister assembly between the canister and Canister Close Valve (CCV).
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.