Freightliner Cascadia 2017–2021 — technical service bulletin
Bulletin CALFTL42-002 · NHTSA communication 10176744 · issued Jun 25, 2020
Technical service bulletin
communication type
Service Brakes, Hydraulic
component
2017–2021
model years
5
vehicle entries
Official summary
Customer Advisory Letter for Antilock Brake System (ABS) Modulator Valve Replacement work instructions.
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.