Volvo EX90 2025–2026 — technical service bulletin
Bulletin 37321.1.0 · NHTSA communication 11031102 · issued Mar 19, 2026
Technical service bulletin
communication type
Structure
component
2025–2026
model years
2
vehicle entries
Official summary
This is a TJ - 1 text Doc plus 1 PDF and 1 M4a attachment - If the vehicle has a symptom of a drone noise according to attached sound file "TJ_37321_1.m4a" when driving, follow advice under "Service". To prevent the noise from occurring, apply a foam piece with part number 32459450 on left and right side of the lidar cover panel according to attachment
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.