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Service bulletins for the 2020 Freightliner Cascadia

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

661 on file from NHTSA, as of 2026-10-19.

By type

By component

Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
SF5972020-02-15. Service bulletin. ELECTRICAL SYSTEM. Field Service Campaign for Freightliner Cascadia Passenger-Side Dome Light. Certain Freightliner Cascadia vehicles may have an inoperable dome light which normally activates upon opening the right-side (passenger) door. Vehicles will be inspected by opening the right-side (passenger) door, and if dome light is inoperable, a modification will be made to the wiring harness.
SB54-2902020-02-15. Service bulletin. ELECTRICAL SYSTEM. Service Bulletin for Guidelines for Repairing or Replacing an Electrical Harness. Use the guidelines in this bulletin to determine if a damaged electrical harness should be repaired or replaced.
20CSA-022020-02-01. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Customer Service Announcement reminding service locations to update their DiagnosticLink software. To maintain access to the Detroit server, all DiagnosticLink computers must be updated with the current version of DiagnosticLink software. all DiagnosticLink 8.08 installed versions will be disabled as of Tuesday, January 28, 2020.
SS10340682020-01-19. Service bulletin. ELECTRICAL SYSTEM. Service Solution for Meritor Wabco OnGuard Radar Service Alignment. If the radar sensor needs to be aligned, the radar sensor mounting system has become damaged or has loosened, or new radar sensor software has been installed, a Radar Sensor Service Alignment will need to be performed.
SB54-2902020-01-17. Service bulletin. ELECTRICAL SYSTEM. Service Bulletin on guidelines for repairing or replacing an electrical harness.
17TS-12REV2020-01-03. Service bulletin. ELECTRICAL SYSTEM:WIRING; ENGINE AND ENGINE COOLING; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. Technical Service Letter for GHG17 Heavy Duty Engine Platform 1-BOX Aftertreatment System (ATS) Wire Harness experiencing chaffing caused by vibration and dirt collecting in the harness conduit.
WI19-0222020-01-02. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT; ELECTRICAL SYSTEM. Warranty Information Letter announcing Detroit NOx Sensor Circuit Improvements for GHG17 After Treatment Systems
SB54-3232019-12-20. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Service Bulletin for New Cascadia Pana-Pacific 540 Radio Controls Not Operating Normally. Pana-Pacific DEA540 radios (A22-74389-000) may cease to respond to volume control settings from the steering wheel switches or the controls on the radio faceplate, resulting in erratic volume control.
SS10345682019-11-22. Service bulletin. EXTERIOR LIGHTING; EQUIPMENT; ELECTRICAL SYSTEM. Service Solution communicating how to minimize the risk of a heat damaged headlamp, or progressive damage to a vehicle due to an improperly installed halogen headlamp bulb,
CALFTL54-0052019-11-21. Service bulletin. VISIBILITY; EXTERIOR LIGHTING; ELECTRICAL SYSTEM. Customer Advisory Letter communicating how to minimize the risk of a heat damaged headlamp, or progressive damage to a vehicle due to an improperly installed halogen headlamp bulb,
SB54-3182019-11-20. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; STEERING; ELECTRICAL SYSTEM. Service Bulletin for New Cascadia describing cab-to-chassis redundant ground strap installation to prevent damage to cab wiring.
SB54-2392019-11-20. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT; ELECTRICAL SYSTEM. Service Bulletin for Cascadia Cabin CAN ECU Compatibility. Compatible software levels are required for the proper operation of the vehicle.
SS10345442019-10-31. Service bulletin. ELECTRICAL SYSTEM. Service Solution to fix switch malfunction
SB54-3182019-10-30. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Service bulletin describing procedures to install a cab-to-chassis redundant ground strap from the Main Ground Junction Box (MGJB) to the frame.
SB54-3212019-10-30. Service bulletin. EQUIPMENT; STEERING: STEERING WHEEL/HANDLE BAR; ELECTRICAL SYSTEM. Service bulletin describing the procedures for service harness installation and steering wheel clockspring replacement.
SB54-3142019-10-30. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Service Bulletin describing changes made to the Powernet Distribution Box (PNDB) for better fuse retention.
19TL-212019-10-28. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. Tool Letter announcing an ICC5 programming cable will be available once new programming software is finalized.
19TL-202019-10-26. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Tool Letter for DAVCO Shop Pro FXP 95-230V compatible for Australia Electrical Systems.
19TL-192019-10-26. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Tool Letter for DAVCO Shop Pro FXP 95-230V compatible for Chile and Italy Electrical Systems
D19R32019-10-01. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. DDC Emission Recall for GHG17 DD Platform Model Years 2019 Software Reprogramming
DOC-10344882019-09-30. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM. Service Solution to fix radio issues
19CSA-12 BCT2019-09-09. Service bulletin. ELECTRICAL SYSTEM. PowerNet Assessment Tool Repair Procedure
19TS-8 Cascadia2019-09-09. Service bulletin. ELECTRICAL SYSTEM. Service Solution to fix incorrect ICUC Fuel Economy Reading
CAL 540 Radios2019-09-09. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Some 540 model radios are experiencing issue related to volume control and other controls.
sb820192019-09-05. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY/WIPER. Service Bulletin to address wiper issue. On some Cascadia vehicles, when a request for wiper activation is made the wipers may not function. This can result from an overcurrent condition, which causes the wipers to stop functioning and immediately set fault code SPN 522215 FMI 6.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.