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RecallGazette

Vehicle problems, recalls & safety intelligence

Audi A4 2017–2021technical service bulletin

Bulletin A3923542048671_6 · NHTSA communication 10236591 · issued May 9, 2023

Technical service bulletin
communication type
Electrical System
component
2017–2021
model years
49
vehicle entries

Official summary

This bulletin provides a software update for when "All Wheel Drive Malfunction Message" is displayed in the instrument cluster and DTC U030000 is logged.

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.