Polestar Polestar 2 2021–2026 — technical service bulletin
Bulletin 37413 · NHTSA communication 11021912 · issued Jul 23, 2025
Technical service bulletin
communication type
Unknown / Other
component
2021–2026
model years
6
vehicle entries
Official summary
This is a Technical Journal: PS IHU - Prior Approval. In most cases, the IHU does not need to be replaced and can be retained by following the fault tracing in VIDA. If the normal fault tracing is unsuccessful, and the next step is to replace the IHU, this TJ must be followed
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.