Audi Q4 E-Tron 2022–2024 — technical service bulletin
Bulletin TSB_2078134_3 · NHTSA communication 11028412 · issued Jan 5, 2026
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; D TC P0BBD00 in 008C.
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.