Volvo EX90 2025–2026 — technical service bulletin
Bulletin 37922.1.1 · NHTSA communication 11037957 · issued Sep 9, 2026
Technical service bulletin
communication type
Unknown / Other
component
2025–2026
model years
2
vehicle entries
Official summary
This is a TJ - Text only no attachments If the customer experiences a "Battery System Fault" warning message and the vehicle will not start, follow the advice under service. Improved software was released with version 3.0.33, Perform a total upgrade to bring the vehicle to the latest software.
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.