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RecallGazette

Vehicle problems, recalls & safety intelligence

Audi A4 2021technical service bulletin

Bulletin A9121332064292_1 · NHTSA communication 10201517 · issued Sep 16, 2021

Technical service bulletin
communication type
Equipment
component
2021
model years
22
vehicle entries

Official summary

This bulletin contains repair instructions for when adjusting the MMI volume via the steering wheel controls, the volume sporadically and unintentionally goes all the way to min or max.

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.