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
| FTLCAE172-2017 | 2021-05-17. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION; EQUIPMENT. New Accuride Aluminum Wheels |
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| FTLCAE167-2016 | 2021-05-17. Service bulletin. VISIBILITY; EQUIPMENT:APPLIANCE:AIR CONDITIONER; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Important Update for Parked HVAC System Options |
| TK-APU | 2021-05-10. Service bulletin. ELECTRICAL SYSTEM. Evolution APU No Regen. |
| TechTalk566085K | 2021-05-06. Service bulletin. ENGINE AND ENGINE COOLING. Tech talk discussion on HC DOSER WILL NOT ACTIVATE DURING REGEN. |
| SS3076-FTL2021 | 2021-05-01. Service bulletin. VISIBILITY. Service Solution for P4 Main Mirror Arm Covers Loose - Falling Off. Lower arm cover 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. |
| SS3075-FTL2021 | 2021-05-01. Service bulletin. POWER TRAIN. Service Solution for FTL DT12 Trans Control Harness Chaffing - PT Can faults. Transmission will not shift into Gear while driving or will not start and trigger multiple PT CAN Fault Codes. |
| D21M1 | 2021-05-01. Service bulletin. POWER TRAIN. Detroit Field Service Campaign for DT12 Transmission Drive Shaft Cover Plug Reseal. Daimler Trucks North America LLC, on behalf of its DETROIT Powertrain Division, is initiating Field Service Campaign D21M1 on certain DT12 transmissions in order to reseal the bypass plugs of the drive shaft cover located in front housing. |
| SB54-322 | 2021-04-28. Service bulletin. VISIBILITY. Updated Freightliner Service Bulletin for Adjusting Automatic Temperature Control Range with Optimized Idle. This bulletin replaces the version dated 12/06/2019. Tables 3 and 4 have been updated. Steps to change and match HVAC desired settings have been updated. |
| 16TS-08REV | 2021-04-24. Service bulletin. ENGINE AND ENGINE COOLING. Detroit Technical Service Letter for DD13 Cylinder Head and Cylinder Head Gasket Change. |
| CALFTL54-016 | 2021-04-24. Service bulletin. ELECTRICAL SYSTEM. Customer Advisory Letter for Battery Cable Access (BCA) 29A Cable Inspection. |
| WI21-009 | 2021-04-24. Service bulletin. ENGINE AND ENGINE COOLING. Warranty Information letter announcing that DTNA is increasing the Standard Diagnostic Times (SDTs) shown. The updated after treatment system (ATS) diesel exhaust fluid (DEF) pump times will be applied to repair orders opened on or after April 12, 2021. |
| WI21-008 | 2021-04-23. Service bulletin. EQUIPMENT. Warranty Information Letter announcing DTNA is adjusting the Standard Repair Times (SRTs) shown. The updated times will be applied to repair orders opened on or after April 5, 2021. |
| DT12 Trans Chafe | 2021-04-08. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; POWER TRAIN. DTNA received a field notification on multiple units regarding diagnostic fault codes that were found to be causing issues to the After Treatment Control Module (ACM). These fault codes indicated that the ACM communication message was not received by the Motor Control Module (MCM) which in certain cases, led to a 25% engine de-rate situation. Further diagnosis revealed that the DT12 wiring harness was chafing and contacting the transmission TCU case. To reduce potential chafing areas, the proposed short-term containment was to route the wiring harness using additional tie straps. This communication applies to Freightliner and Western Star vehicles built with DT12 transmissions. |
| CALFTL54-004 | 2021-03-31. Service bulletin. ELECTRICAL SYSTEM. Customer Advisory Letter for Customer Access to Fused Battery Power and Ground inside a Cascadia Cab vehicles built without a cab load disconnect switch (CLDS). |
| D21M3 | 2021-03-31. Service bulletin. POWER TRAIN. Detroit Field Service Campaign for DT12 Gear Grind During Downshift Software Update. |
| CALFTL54-015 | 2021-03-26. Service bulletin. ELECTRICAL SYSTEM. Customer Advisory Letter for Disabling the Park Brake Drag ICU Warning Message. |
| CALFTL49-003 | 2021-03-26. Service bulletin. ENGINE AND ENGINE COOLING. Customer Advisory Letter for DEF Header Replacement. |
| CALFTL54-010REV3 | 2021-03-26. 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. |
| CALFTL31-003REV | 2021-03-26. 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. |
| SB83-155 | 2021-03-26. 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. |
| SS3071FTL2021 | 2021-03-25. 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. |
| SS3070FTL2021 | 2021-03-25. 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. |
| SB54-338 | 2021-03-24. 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. |
| SB54-305 | 2021-03-24. 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. |
| SB49-038 | 2021-03-24. 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. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.