Audi A4 2020–2021 — technical service bulletin
Bulletin A9123182060197_4 · NHTSA communication 10241439 · issued Aug 8, 2023
Technical service bulletin
communication type
Electrical System
component
2020–2021
model years
12
vehicle entries
Official summary
This bulletin provides information for when there is an SOS emergency call malfunction; DTC B19BD11 or B18BD13 is stored in the telematics control module.
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.