Volvo EX90 2025–2026 — technical service bulletin
Bulletin 37473 · NHTSA communication 11022811 · issued Aug 28, 2025
Technical service bulletin
communication type
Unknown OR Other
component
2025–2026
model years
2
vehicle entries
Official summary
This is a Technical Journal - EX90 - Failed Software Download Causing Invalid Certificates If a Total Upgrade, PDS, or TCAM reload fails on any ECU, the TCAM may end up with invalid certificates. To ensure proper functionality after successfully recovering the car with a new software download, follow these steps to verify certificate validity
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.