Volkswagen ID.4 2023 — technical service bulletin
Bulletin TT 94 23 01 · NHTSA communication 10233265 · issued Mar 20, 2023
Technical service bulletin
communication type
Electrical System
component
2023
model years
1
vehicle entries
Official summary
Daytime Running Lamps (DLR) or Parking Light illumination only 1/2 operational with error C123B01
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.