Freightliner Cascadia 2019–2021 — technical service bulletin
Bulletin TechTalk8126 · NHTSA communication 10188122 · issued Feb 10, 2021
Technical service bulletin
communication type
Engine and Engine Cooling
component
2019–2021
model years
3
vehicle entries
Official summary
Tech Talk discussion on D20M8 having updates greater than Recall requires in server.
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.