Audi A5 2025–2026 — technical service bulletin
Bulletin TSB_2079926_2 · NHTSA communication 11027415 · issued Dec 18, 2025
Technical service bulletin
communication type
Electrical System
component
2025–2026
model years
18
vehicle entries
Official summary
This bulletin provides information when various assist systems not working - software update - cluster 3 - 03.10.00/C (28.13.01) KD2.
Vehicles covered
- 2025 Audi A5
- 2026 Audi A5
- 2025 Audi A6 Sportback E-Tron
- 2025 Audi Q5
- 2026 Audi Q5
- 2025 Audi Q5 Sportback
- 2026 Audi Q5 Sportback
- 2025 Audi Q6 E-Tron
- 2025 Audi Q6 Sportback E-Tron
- 2025 Audi S5
- 2026 Audi S5
- 2025 Audi S6 Sportback E-Tron
- 2025 Audi SQ5
- 2026 Audi SQ5
- 2025 Audi SQ5 Sportback
- 2026 Audi SQ5 Sportback
- 2025 Audi SQ6 E-Tron
- 2025 Audi SQ6 Sportback E-Tron
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.