Freightliner Cascadia 2020 — technical service bulletin
Bulletin CALFTL42-007 · NHTSA communication 10225490 · issued Oct 6, 2022
Technical service bulletin
communication type
Service Brakes, Air
component
2020
model years
1
vehicle entries
Official summary
Customer Advisory Letter for Brake System Modulator Valve Evaluation.
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.