Volvo S90 2016–2018 — technical service bulletin
Bulletin TJ34647.4.0-2019 · NHTSA communication 10170175 · issued Dec 11, 2019
Technical service bulletin
communication type
Electrical System
component
2016–2018
model years
11
vehicle entries
Official summary
This is a Technical Journal: DIM message about parking brake. Perform software upgrade.
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.