Volvo S90 2016–2018 — technical service bulletin
Bulletin TJ33854.3.0-2019 · NHTSA communication 10155346 · issued Feb 23, 2019
Technical service bulletin
communication type
Electrical System
component
2016–2018
model years
12
vehicle entries
Official summary
This is Technical Journal: Intermittent low performance + triple ECM DTC. Do not replace any parts for these cases. A new software for the ECM (engine control module) is under development and is planned to be released Q4-2018
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.