Audi A4 2020 — service campaign
Bulletin Circular 91MM 20251015 · NHTSA communication 11025260 · issued Oct 15, 2025
Service campaign
communication type
Unknown OR Other
component
2020
model years
8
vehicle entries
Official summary
Updated work instructions: Clarified instructions if green emergency call LED is not illuminated before the software update Added reference to a TSB if there are issues with the emergency call system after the software update
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.