Audi Q4 E-Tron 2022–2024 — technical service bulletin
Bulletin TSB_2078134_2 · NHTSA communication 11027331 · issued Dec 4, 2025
Technical service bulletin
communication type
Electrical System
component
2022–2024
model years
6
vehicle entries
Official summary
This bulletin provides information when the electric drive system warning lamp lights up; P0BBD00.
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.