Volkswagen ID.4 2021–2026 — technical service bulletin
Bulletin V9325082080145_2 · NHTSA communication 11028497 · issued Jan 27, 2026
Technical service bulletin
communication type
Electrical System
component
2021–2026
model years
7
vehicle entries
Official summary
DTC B203400 Excessive Temperature
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.