Audi A3 2020–2027 — technical service bulletin
Bulletin TSB_2074475_5 · NHTSA communication 11036918 · issued Aug 21, 2026
Technical service bulletin
communication type
Steering
component
2020–2027
model years
22
vehicle entries
Official summary
This bulletin provides service information when DTC U0101000 is logged, lost communication with the TCM in diagnostic address 23.
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.