Volkswagen Jetta 2020 — technical service bulletin
Bulletin V0121062062519_1 · NHTSA communication 10188572 · issued Mar 3, 2021
Technical service bulletin
communication type
Engine and Engine Cooling
component
2020
model years
1
vehicle entries
Official summary
Update ECM programming for various DTCs
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.