Volkswagen Atlas 2018–2019 — technical service bulletin
Bulletin V0120012058261_1 · NHTSA communication 10171801 · issued Feb 18, 2020
Technical service bulletin
communication type
Equipment
component
2018–2019
model years
2
vehicle entries
Official summary
Catalytic converter hardware improved for long-term durability. ECM software improved to reduce thermal stress on catalytic converter, prevent erroneous EVAP leak faults, and prevent erroneous fuel trim faults.
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.