Audi A4 Allroad 2017–2019 — technical service bulletin
Bulletin A5719562055916_1 · NHTSA communication 10164486 · issued Aug 29, 2019
Technical service bulletin
communication type
Latches/locks/linkages
component
2017–2019
model years
8
vehicle entries
Official summary
This bulletin contains a software update for the DTC B14FF29 and the message "Child lock: malfunction!" appears in the instrument cluster.
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.