Freightliner Cascadia 2008–2010 — technical service bulletin
Bulletin 12C3REV1 · NHTSA communication 10166431 · issued Oct 25, 2019
Technical service bulletin
communication type
Engine and Engine Cooling
component
2008–2010
model years
3
vehicle entries
Official summary
Emission Recall Bulletin for EPA07/EPA10 DD13 Emission Labels In Cascadia 113â  Day Cab Chassis obscured by air cleaner housing.
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.