Audi E-Tron 2019–2024 — technical service bulletin
Bulletin AOS-25-21 · NHTSA communication 11017668 · issued Apr 25, 2025
Technical service bulletin
communication type
Electrical System
component
2019–2024
model years
5
vehicle entries
Official summary
This is a notice for software changes with the ODIS diagnostic program to correct the communication during vehicle programming function: The hotfix is for the mean cell voltage function test plan.
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.