Audi A4 2020 — technical service bulletin
Bulletin A9124602067021_5 · NHTSA communication 10249225 · issued Jan 25, 2024
Technical service bulletin
communication type
Equipment
component
2020
model years
7
vehicle entries
Official summary
This bulletin provides information for when there is a malfunction with the garage door opener, Sirius XM, Online radio, or other malfunctions; DTC B129B11, B129C22, B123C13, U044700, or B200000.
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.