Volkswagen Jetta 2020–2021 — technical service bulletin
Bulletin V0123122072378_1 · NHTSA communication 10247534 · issued Dec 11, 2023
Technical service bulletin
communication type
Unknown OR Other
component
2020–2021
model years
2
vehicle entries
Official summary
Update Programming Engine/Motor Control module for EVAP system vent valve.
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.