Polestar Polestar 3 2025–2026 — technical service bulletin
Bulletin 37403 · NHTSA communication 11020566 · issued Jun 6, 2025
Technical service bulletin
communication type
Unknown / Other
component
2025–2026
model years
2
vehicle entries
Official summary
This is a Technical Journal: Polestar 3 VCU Replacement. Before completing the VCU reload please create a Support Needed case for assistance.
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.