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Service bulletins for the 2018 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.

1044 on file from NHTSA, as of 2026-10-19.

By type

By component

Bulletins, newest first
SS3076-FTL20212021-12-02. Service bulletin. VISIBILITY. Updated Service Solution for Main Mirror Arm Covers Loose -Falling Off. Lower arm covers designs have clips that hold the cover on but over time the clips can fail and allow the covers to become loose or fall off.
CTP1Updates2021-10-06. Service bulletin. EQUIPMENT. DetroitConnect follow-up customer communication for certain vehicles unable to complete over the air updates including parameters and DDEC over the air.
CTP1Updates2021-10-06. Service bulletin. EQUIPMENT. DetroitConnect customer communication for certain vehicles unable to complete over the air updates including parameters and DDEC over the air.
MYCOM_091321-32021-10-06. Service bulletin. EQUIPMENT. My Communication for Detroit Connect Over the Air Issue Update. This is an update for the previously communicated Over the Air functionality issue on CTP1s. We are currently testing a solution for the issue that is affecting these CTP1 telematics devices. While testing is not complete initial results are promising. The solution will require a soft ware update which is currently planned for October/November.
SS3091-FTL 20212021-09-29. Service bulletin. LANE DEPARTURE. Service Solution for Damaged SGA Wires at GrabHandle Located on Right A Pillar. The field had reported failed VRDU modules related to wires damage for the SGA.
SS10342162021-08-31. Service bulletin. FORWARD COLLISION AVOIDANCE. Service Solution for Detroit Assurance Radar Front End Shipping Label. It has been reported that in some cases shipping labels may have been affixed to the inside center of the front cover on aftermarket parts. The shipping label has since been moved to the outer edge of the front cover, which should not affect the RDF's ability to properly sense obstacles located in front of the vehicle.
SB60-1752021-08-28. Service bulletin. VISIBILITY. Freightliner Service Bulletin for Auxiliary Mirror Vibration. Cascadia trucks built from January 1, 2017 through June 16, 2020 may be equipped with auxiliary mirrors that vibrate or wobble. A service kit (part number 22-77791-500) is available to resolve the issue.
SB54-3472021-08-28. Service bulletin. VISIBILITY. Freightliner Service Bulletin for Rain Sensor not Detecting Material on the Windshield. The rain light sensor (RLS) requires proper mounting and clear windshield visibility for auto wipe to function properly. It is always recommended when checking for proper operation of the RLS, that the sensor be properly fastened to its mounting bracket and that the gel is free of fingerprints and foreign material. Also ensure that no air bubble larger than 1 mm is present in the gel.
SB54-3452021-08-28. Service bulletin. POWER TRAIN. Freightliner Service Bulletin for Detroit New Final Drive (NFD) Rear Axle Temperature Parameters. Some New Cascadia trucks equipped with Detroit Diesel New Final Drive (NFD) axles have a high temperature warning parameter. The warning is set too low for some applications, and under certain conditions that are not harmful to the axle, the high temperature warning will appear on the dash and indicate an error requiring service.
SB54-3442021-08-28. Service bulletin. FORWARD COLLISION AVOIDANCE. Freightliner Service Bulletin for Detroit Assurance 4.0 Software v20.05. Cascadia trucks built from January 1, 2017 through September 9, 2019 and equipped with Detroit Assurance correctly initiate an active brake assist (ABA) event when a vehicle or obstacle is detected in front of the truck. Some of those trucks may continue decelerating to a complete stop, even after the vehicle or obstacle detected in front of the Detroit Assurance-equipped truck has moved away.
SS3085FTL-20212021-08-28. Service bulletin. EQUIPMENT. Service Solution for Cummins PTO functionality error software level 81Z-006. Cascadia/Western Star 49X with Cummins engines combined with software level 81Z-006. A programming bug in the central gateway (CGW) for software level 81Z-006 will not allow completion of the preset #2 PTO engine speed. During PTO speed request for anything greater than the #1 set speed , if the Cummins ECU software determines that the increase in speed isn't ramping fast enough, it will refer to an engine torque control setting instead of the engine speed control setting.
SS2083FTL20212021-07-22. Service bulletin. SUSPENSION. Service Solution for Aero Height Control Interfering with RDF Alignment and 42/523004/13 and 232/524042/9 Active for vehicles equipped with Hadley Smart Valve. The Aerodynamic Height Control feature on the New Cascadia is a feature that raises and lowers the air suspension with relation to vehicle speed in order to reduce drag and achieve better fuel efficiency. The Hadley Smart Valve (HSV) is the module that makes this possible by applying and exhausting air from the rear axle suspension as necessary.
SS3082FTL20212021-07-22. Service bulletin. FUEL SYSTEM, GASOLINE. Service Solution for New Cascadia Fuel Sending Unit Connector Loose.
SS3081FTL20212021-07-22. Service bulletin. LANE DEPARTURE; FORWARD COLLISION AVOIDANCE. Service Solution for VRDU Fault Code 232/524000/19and 232/524049/19 – ECU CPC Data Error. This VRDU code typically sets after the VRDU gets reprogrammed and parameters to clear out. To prevent this from happening in the future, follow the programming guide laid out in SB 54-308.Parameter changes during flashing can occur if the programming steps are not followed.
SB54-3342021-06-29. Service bulletin. FORWARD COLLISION AVOIDANCE; ENGINE AND ENGINE COOLING. Freightliner Service Bulletin for Detroit Assurance 4.0 Software v20.05. New Cascadia trucks built from January 1, 2017 through September 9, 2019 and equipped with Detroit Assurance correctly initiate an active brake assist (ABA) event when a vehicle or obstacle is detected in front of the truck. Some of those trucks may continue decelerating to a complete stop, even after the vehicle or obstacle detected in front of the Detroit Assurance-equipped truck has moved away.
SB54-3382021-06-29. Service bulletin. VISIBILITY. Updated Freightliner Service Bulletin for Updating HVAC ECU Software to Fix Front HVAC Evaporator Freezing and Improve Espar Heater Cool Down. This bulletin replaces the version dated 03/03/2021. Information on software versions and the number of software updates needed has been updated.
SS36722021-06-10. Service bulletin. UNKNOWN OR OTHER. SAM Cab & SAM Chassis Wall Charts
SS37042021-06-10. Service bulletin. ELECTRICAL SYSTEM. Cascadia Fault codes 6.0
SS4690762021-06-10. Service bulletin. UNKNOWN OR OTHER. Odometer racks up mileage when the vehicle is stationary - Cascadia
SS10230692021-06-09. Service bulletin. UNKNOWN OR OTHER. Cascadia - Engine Will Not Crank (No Starter Output from SAM Cab)
SS10329742021-06-09. Service bulletin. UNKNOWN OR OTHER. SS 1032974 High Oil Pressure on 2017 DTNA Vehicles Instrument Cluster Display
SS4690682021-06-09. Service bulletin. ELECTRICAL SYSTEM. SS 469068 Cascadia SAM Cab, SAM Chassis, MSF and CGW Hardware Compatibility
SS10330492021-06-09. Service bulletin. UNKNOWN OR OTHER. SS 1033049 Transmission Oil Cooler Line Clip - New Cascadia
SS10330472021-06-09. Service bulletin. UNKNOWN OR OTHER. Service Solution SS 1033047 M2 Battery Drain Problem – Mismatched I...
SS10331212021-06-09. Service bulletin. ELECTRICAL SYSTEM. SS 1033121 Adding a Fan Override Switch (Legacy Cascadia)

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