Volkswagen ID.4 2021–2026 — technical service bulletin
Bulletin V9326052081829_1 · NHTSA communication 11035768 · issued Jul 20, 2026
Technical service bulletin
communication type
Electrical System
component
2021–2026
model years
7
vehicle entries
Official summary
Diagnosis of low insulation resistance in the High-Voltage (HV) wiring.
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.