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Service bulletins for the 2019 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.

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

By type

By component

Bulletins, newest first
DCFuelAnalytics2020-11-26. Service bulletin. FUEL SYSTEM, GASOLINE. Detroit Connect Customer Communication for vehicle trips not populating in the Vehicle History Trips page. This may affect Fleet Fuel Analysis and Fuel Economy Calculations.
TechTalk78422020-11-04. Service bulletin. ENGINE AND ENGINE COOLING. Tech Talk discussion on DD15 - SPN 100 FMI 1 - Engine Oil Pressure Too Low.
TechTalk78402020-11-04. Service bulletin. SERVICE BRAKES, HYDRAULIC; SERVICE BRAKES, AIR. Tech Talk discussion on New Cascadia brakes aren't working. Issue resolved when faulty foot valve was replaced.
TechTalk67832020-11-04. Service bulletin. SUSPENSION. Tech talk discussion on P4 adding suspension gauge.
TechTalk77372020-11-03. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Tech Talk discussion on Diagnostic Link connection issues with D20M8.
TechTalk76952020-11-03. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Tech Talk discussion on Virtual Tech connection issues.
TechTalk77852020-11-03. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING. Tech Talk discussion on DL8 CGW connection issues for D20M8.
TechTalk77642020-11-03. Service bulletin. ELECTRICAL SYSTEM. Tech Talk discussion on D20M8 - SPN521004/FMI 14.
TechTalk77622020-11-03. Service bulletin. VEHICLE SPEED CONTROL. Tech Talk discussion on Cruise Control Intermittently Dropping Out.
TechTalk77502020-11-03. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING. Tech Talk discussion on DETROIT D20M8 ASM DELETED.
TechTalk77412020-11-03. Service bulletin. ENGINE AND ENGINE COOLING. Tech Talk discussion on p4 radiator hose collapsing.
TechTalk77352020-11-03. Service bulletin. FUEL SYSTEM, OTHER; ENGINE AND ENGINE COOLING. Tech Talk discussion on 1 Aftertreatment System Problem Detected.
TechTalk65302020-11-02. Service bulletin. EQUIPMENT; TRAILER HITCHES; EQUIPMENT ADAPTIVE/MOBILITY. Tech Talk discussion on P4 ICU TRAILER DISCONNECT WARNING.
TechTalk40232020-11-01. Service bulletin. ELECTRICAL SYSTEM. Tech Talk discussion on vehicle shutting off while driving.
SB54-2782020-10-28. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Updated Freightliner Service Bulletin for Powernet Troubleshooting Guide - Batteries, Path, Alternator, and Starter. This bulletin replaces the version dated 5/31/2017. Information is added about the BCT-460DTNA PowerNet Assessment Tool. When troubleshooting Powernet issues, use the BCT-460DTNA PowerNet Assessment Tool. As of May 29, 2018, the AutoMeter® is the only Daimler-approved tool for troubleshooting vehicle Powernet issues.
17TS-05REV22020-10-21. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM:SOFTWARE. Revised Technical Service Letter for Detroit DT12 TCM GHG17 Only; Bootloader Update. On Detroit DT12 equipped vehicles, it may be necessary to complete an additional step in the programming process when updating the TCM software.
CALFTL60-0032020-10-19. Service bulletin. STRUCTURE; ENGINE AND ENGINE COOLING. Customer Advisory Letter for New Cascadia Cummins ISX12N Natural Gas Cab Mount Heat Shield Installation.
CALFTL32-0082020-10-19. Service bulletin. SUSPENSION. Customer Advisory Letter for Drive Axle Leaf Spring Pin Hex Nut Torque Inspection. Select New Cascadia vehicles may have been delivered to customers with insufficient torque applied to the hex nuts at the front of the spring hanger.
SB09-0382020-10-19. Service bulletin. ENGINE AND ENGINE COOLING. Freightliner Service Bulletin for Air Cleaner Support Bracket Bolt Replacement. On New Cascadia vehicles, the air filter housing rear mounting bracket bolts may be found to be loose or missing. If allowed to continue, this can lead to complete bolt failure which will allow the filter housing to rest on and possibly wear through the valve cover.
ICI20-0332020-10-19. Service bulletin. ELECTRICAL SYSTEM. Important Campaign Information Letter for SF576, SF610, & SF611 - Revised Bulletins. This letter is to inform you that revised bulletins for FOTA Field Service Campaigns SF576, SF610, and SF611 are available on DTNAConnect. Please print and use the revised bulletin for all work under SF576, SF610, & SF611 from this point forward. REVISION: The work instructions on all campaigns have been updated, a new campaign group with new parts were added to SF576 and an SRT was added to SF611.
SF611REV2020-10-19. Service bulletin. ELECTRICAL SYSTEM. Revised Field Service Campaign for Cascadia CTP Reset. Certain vehicles equipped with DTNA's proprietary Common Telematics Platform (CTP) are not communicating and, therefore, are unable to benefit from over-the-air software updates. The CTP will be reset and some will also be initialized.
SF610REV2020-10-19. Service bulletin. ELECTRICAL SYSTEM. Revised Field Service Campaign for Cascadia CTP Initialization. Certain vehicles equipped with DTNA's proprietary Common Telematics Platform (CTP) are not communicating and, therefore, are unable to benefit from over-the-air software updates. The CTP will be initialized.
SF576REV42020-10-19. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Revised Field Service Campaign sent out to customers to fix Common Telematics Platform (cTP), and Truck Data Center (TDC) communication issues. Certain vehicles built with DTNA's proprietary Common Telematics Platform (CTP), and Truck Data Center (TDC) are not communicating or have outdated software that cannot be updated and, therefore, are unable to benefit from over-the-air software updates.
20TS-062020-10-13. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING. DDC Technical Service Letter for GHG17 DD Platform Heavy Duty Oil Pan Drain Plug Inserts. Some GHG17 DD Platform Heavy Duty oil pans may experience an issue with the oil pan drain plug insert spinning during removal or installation while completing an oil change. Leaking may also be observed at the drain plug and/or other plugs in the oil pan.
SB54-3362020-10-12. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Updated Freightliner Service Bulletin for Rewiring the MPC2 Camera Fuse. This bulletin replaces the version dated 9/15/20. Information has been added about raising the system voltage to normal range to clear the "Lost Communication to MPC" code. The multipurpose camera 2 (MPC2) power is supplied via fuse 14 (F14) in New Cascadia vehicles built before August 24, 2020. With this configuration, fault code 232/524127/9 - "Lost Communication to MPC" becomes active during low voltage disconnect (LVD) situations when load shedding is required to maintain critical systems. These instructions provide the procedure for moving the MPC2 power supply from fuse 14 (F14) to fuse 35 (F35). Moving the MPC2 power supply requires the installation of a new etched vehicle power distribution module (VPDM) cover to document the new MPC2 location.

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