Audi A5 2025–2026 — technical service bulletin
Bulletin TSB_2078846_2 · NHTSA communication 11027407 · issued Dec 18, 2025
Technical service bulletin
communication type
Power Train
component
2025–2026
model years
12
vehicle entries
Official summary
This bulleitn provides information when there is a yellow warning lamp, drive system fault with DTC P284D00.
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.