WenmarOpen by Wenmar Pro

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: Equipment and accessories are shown. Show all

Bulletins, newest first
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.
SB54-3222019-12-20. Service bulletin. EQUIPMENT; VISIBILITY. Service Bulletin for Adjusting Automatic Temperature Control Range with Optimized Idle. Front and rear HVAC systems operate as independent constant outlet temperature control (COTC) systems when Optimized Idle (OI) is not armed.
SS10345752019-11-22. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. Service Solution addressing Intermittent Loss of Heat from HVAC Vents for New Cascadia.
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,
CALFTL32-0022019-11-21. Service bulletin. EQUIPMENT; SUSPENSION:REAR. Customer Advisory Letter for Airliner welded axle seats. The welded axle seats were installed incorrectly on the rear most drive axle for specific vehicles resulting in an incorrect axle pinion angle. The existing welded axle seats will be removed and replaced with new axle seats installed in the correct orientation.
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.
SB32-0402019-11-20. Service bulletin. SUSPENSION:REAR:SPRINGS:AIR SUSPENSION SYSTEM; EQUIPMENT. Service Bulletin for troubleshooting Airliner suspension air-spring bag misalignment. This version updates applicability to New Cascadia.
SB98-0152019-11-20. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT ADAPTIVE/MOBILITY. Service Bulletin for paint finish standards. Delfleet One has been added for aftermarket use. This version replaces service bulletin dated May 5, 2017.
WP19-0192019-11-20. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Warranty Policy letter announcing service locations have 90 calendar days from delivery to open a repair order which Identifies and addresses discrepancies from the sales order.
SB20-0882019-11-02. Service bulletin. STRUCTURE:BODY:HOOD; EQUIPMENT; ENGINE AND ENGINE COOLING. Service Bulletin describes performing an inspection of the cooling baffle to determine the wear condition of the baffle and to ensure the hood is still sealed for maximum cooling.
SB54-3082019-11-02. Service bulletin. EQUIPMENT. Service Bulletin revision to an earlier submission of SB54-308 for October 2019 (19MC2968). The prior submission added new screenshots. This revision adds clarification for vehicle programming.
19-018WI2019-10-31. Service bulletin. EQUIPMENT. WARRANTY INFORMATION LETTER for coverage validation
FP31-0292019-10-30. Service bulletin. STRUCTURE; EQUIPMENT. Parts technical bulletin on replacement service bumpers for New Cascadia.
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.
CAL_PTO2019-10-30. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. Customer Advisory Letter notifying owners of potential PTO and hydraulic system failures for specific vehicles leased to Herc.
SB54-3142019-10-30. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Service Bulletin describing changes made to the Powernet Distribution Box (PNDB) for better fuse retention.
19-016WP2019-10-30. Service bulletin. EQUIPMENT. WARRANTY POLICY LETTER- Hold disposition for Parts has been eliminated
SB54-3082019-10-30. Service bulletin. EQUIPMENT. Service bulletin describing that the DiagnoticLink screen images for Chassis ECU programming have ben updated.
19-015WP2019-10-29. Service bulletin. EQUIPMENT. Warranty Policy Letter- To assist customers and the service network regarding the Aftermarket Parts Limited Parts Warranty (Parts Warranty).
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

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