Volvo XC90 2018–2020 — technical service bulletin
Bulletin TJ34857.4.2-2020 · NHTSA communication 10173753 · issued Mar 20, 2020
Technical service bulletin
communication type
Equipment Adaptive/mobility
component
2018–2020
model years
3
vehicle entries
Official summary
This is a Technical Journal: ECM-P04F000, Evap System, High Pressure Purge Line
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.