Audi A3 2013–2015 — technical service bulletin
Bulletin Circular37K8REV2 · NHTSA communication 10188612 · issued Mar 9, 2021
Technical service bulletin
communication type
Power Train
component
2013–2015
model years
5
vehicle entries
Official summary
Transmission control module (TCM) software designed and certified for a similar model/model year was used in vehicles affected by this action. It is undetermined whether there could be an impact to emissions. Updated claiming and parts information to add optional part numbers
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.