Freightliner Cascadia 2020 — technical service bulletin
Bulletin CALFTL54-017 · NHTSA communication 10199362 · issued Jul 13, 2021
Technical service bulletin
communication type
Lane Departure
component
2020
model years
1
vehicle entries
Official summary
Customer Advisory Letter for New Cascadia Side Radar Wiring Harness Inspection. If the wiring harness is not routed properly, harness chaffing may occur on certain New Cascadia vehicles equipped with Detroit Assurance 5.0 Side Guard Assist
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.