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Service bulletins for the 2017 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.

1143 on file from NHTSA, as of 2026-10-19.

By type

By component

Bulletins, newest first
CALFTL54-010REV32021-03-26. Service bulletin. SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT. Revised Customer Advisory Letter for ABS Warning Light Illumination with ABS code SA 11, SPN 629, FMI 11. REVISED: This CAL revises the CAL issued August 10th, 2020. Western Star 49X vehicles have been added to the CAL scope and instructions for downloading and installing software to address the ABS warning light illumination with ABS code SA 11, SPN 629, FMI 11 have replaced the corrective action of the previous CAL.
CALFTL31-003REV2021-03-26. Service bulletin. TRAILER HITCHES. Revised Customer Advisory Letter for Cascadia, New Cascadia, and 122SD Vehicles with Cracked Fifth Wheel Angles. Additional photos have been added.
SB83-1552021-03-26. Service bulletin. EQUIPMENT. Updated Freightliner Service Bulletin for Espar Service Information. This bulletin replaces the version dated January 1, 2015. New Cascadia has been added to the model list.
SS3071FTL20212021-03-25. Service bulletin. ELECTRICAL SYSTEM. Service Solution for New Cascadia Maintenance Indicator Issues. Some customers have reported incorrect or undesired pop up messages occurring in the ICC5 display and have requested field correction.
SS3070FTL20212021-03-25. Service bulletin. ELECTRICAL SYSTEM; LANE DEPARTURE. Service Solution for P4 New Cascadia Side Guard Radar Harness Moisture Intrusion. The 6-pin connector located at the side radar can show signs of water intrusion if wires are strained at the connector. Wires without strain relief can allow water to intrude past the seals, resulting in corrosion on the terminals and pins within the connector. Active fault codes for lost communication with RDU and SRRM, plus other codes for CPC, CGW and ABS.
SB54-3382021-03-24. Service bulletin. VISIBILITY; EQUIPMENT. Revised 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 12/23/2020. Information has been added about ParkSmart units and the instructions have been streamlined.
SB54-3052021-03-24. Service bulletin. EQUIPMENT. Revised Freightliner Service Bulletin for New Cascadia Key Fob ID Retention. This bulletin replaces the version dated 8/15/2018. The guidance for locating the serial number for key fobs has changed. It is no longer necessary to document the serial number in PartsPro.
SB49-0382021-03-24. Service bulletin. ENGINE AND ENGINE COOLING. Revised Freightliner Service Bulletin for netized Fill Neck for Six-Gallon DEF Tanks. A design change removed the magnets from the fill necks for some 6-gallon diesel exhaust fluid (DEF) tanks. If the vehicle is equipped with a non-magnetic fill neck 04-32529-000, it can be updated to a magnetic neck 04-32529-001. This bulletin replaces the version dated 04/18/2017. Updated availability of magnetic fill neck option for other diesel exhaust fluid (DEF) tank part numbers.
WP21-0072021-03-24. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Warranty Policy Letter for battery tags. DTNA determined that since adopting the AutoMeter BCT-460DTNA Powernet Assessment Tool (AutoMeter) as the required powernet system tester, not all battery tags have to be retained support Warranty-related claims.
sb542982021-03-15. Service bulletin. ENGINE. sb54298 GHG17 Heavy Duty Engine Platform Vehicle Dash Oil
sb35322021-03-15. Service bulletin. STRUCTURE. sb3532 Detroit Drive Axle Identification and Lubrication
0806-172021-03-15. Service bulletin. EQUIPMENT. 0806-17 SPN 101 (MCM)(GHG17)
0805-172021-03-15. Service bulletin. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:THERMAL MANAGEMENT:FLUID/COOLANT. 0805-17 Contaminated Fluids
0803-172021-03-15. Service bulletin. EQUIPMENT. 0803-17 SPN 411 (MCM) (GHG17)
0802-172021-03-15. Service bulletin. EQUIPMENT. 0802-17 SPN 521485 (TCM)
0801-172021-03-15. Service bulletin. ENGINE AND ENGINE COOLING. 0801-17 Symptom Diagnostics: Coolant Loss
17TS12Rev12021-03-15. Service bulletin. ENGINE. 17TS12Rev1 GHG17 Heavy Duty Engine Platform 1-BOX? Aftertreatment System ATS Wire Harness
TechTalk5382K2021-03-05. Service bulletin. ENGINE; ELECTRICAL SYSTEM. Tech Talk discussion on hill start aid disable function.
TechTalk6240K2021-03-05. Service bulletin. ELECTRICAL SYSTEM. Tech Talk discussion on J1939 ISSUES.
TechTalk81132021-03-03. Service bulletin. ENGINE AND ENGINE COOLING. Tech Talk discussion on Cummins 3382 fault.
TechTalk48552021-03-02. Service bulletin. VISIBILITY; ELECTRICAL SYSTEM. Tech Talk continued discussion for P4 Next Gen Cascadia dome lights stay on while driving.
WI21-0042021-03-02. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. Warranty Information Letter for Detroit Resources: Exploded View DD Platform and DT12 Posters. Detroit's TechComm team created visual aids for the network and released exploded view posters for DD platform engines. In early 2021, Detroit added multiple DT12 posters.
ICI21-005 D19M72021-03-02. Service bulletin. ENGINE AND ENGINE COOLING. Important Campaign Information Letter announcing that a revision for Detroit Diesel Field Service Campaign D19M7. This letter is to inform you that Detroit Field Service Campaign D19M7 REV2, Pre-Series Cascadia Emission Label Replacement has been EXTENDED for an additional four months and re-activated on DTNA Connect. Please use the extended termination date for all work under D19M7 REV2 from this point forward.
D19M7REV22021-03-02. Service bulletin. ENGINE AND ENGINE COOLING. Revision for Field Service Campaign for pre-series Cascadia and New Cascadia Emission Label replacement. Additional sections have been updated.
P4HALOGENUPDATE2021-03-02. Service bulletin. VISIBILITY; ELECTRICAL SYSTEM; EXTERIOR LIGHTING. Customer Maintenance Enhancements for the P4 Halogen Lamp replacement procedure.

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