Hyundai Genesis 2015–2016 — technical service bulletin
Bulletin 23-01-037H · NHTSA communication 10235569 · issued Apr 25, 2023
Technical service bulletin
communication type
Engine and Engine Cooling
component
2015–2016
model years
2
vehicle entries
Official summary
Certain 2015-2016MY Hyundai Genesis (DH) 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.