Freightliner Cascadia 2020 — technical service bulletin
Bulletin TechTalk8170 · NHTSA communication 10187997 · issued Feb 21, 2021
Technical service bulletin
communication type
Visibility
component
2020
model years
1
vehicle entries
Official summary
Tech talk discussion on p4 washer fluid low warning with no switch.
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.