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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

Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
FleetCom_Oil Plug Loc2026-01-08. Other. POWER TRAIN. Fleet Communications for NFD Lower Oil Plug Location - SP Axles
TSB26-056-FTL2025-05-02. Service bulletin. POWER TRAIN. Service Solution for DT12 Oil Plug Ports
TSB35-039-FTL2025-01-03. Service bulletin. POWER TRAIN. Technical Service Bulletin for Detroit New Final Drive Standard Performance Forward Carrier Change to Top Performance Passive Lube Management
TSB35-032-FTL2025-01-03. Service bulletin. POWER TRAIN. Technical Service Bulletin for Detroit Drive Axle Identification and Lubrication
TSB54-366-FTL2025-01-03. Service bulletin. POWER TRAIN; LANE DEPARTURE: BLIND SPOT DETECTION; ENGINE. Technical Service Bulletin for J1939 Communication Errors with Cummins Engine Automated or Allison Transmission and Bendix Side Radar
TSB35-039-FTL2024-12-06. Service bulletin. POWER TRAIN. Revised Technical Service Bulletin for Detroit New Final Drive Standard Performance Forward Carrier Change to Top Performance Passive Lube Management.
TSB35-032-FTL2024-12-04. Service bulletin. POWER TRAIN. Technical Service Bulletin for Detroit Drive Axle Identification and Lubrication
CXA 11_21_P4 J1939 Commun2024-12-04. Other. LANE DEPARTURE: BLIND SPOT DETECTION; ENGINE; POWER TRAIN. CX Advocate for P4 J1939 Communication Errors (TSB54-366-FTL)
TSB54-366-FTL2024-11-07. Service bulletin. ENGINE; POWER TRAIN; LANE DEPARTURE: BLIND SPOT DETECTION. Technical Service Bulletin for J1939 Communication Errors with Cummins Engine Automated or Allison Transmission and Bendix Side Radar
CXA 9_24_NFD fill plug2024-10-04. Other. POWER TRAIN. CX Advocate for NFD fill plugs
TSB35-039-FTL2024-09-07. Service bulletin. POWER TRAIN. Revised Technical Service Bulletin for Detroit New Final Drive Standard Performance Forward Carrier Change to Top Performance Passive Lube Management. Description of Revisions: The bulletin replaces the version dated 05/14/2024. Creation date has been updated.
CXA 7_24_Differential Cov2024-08-02. Other. POWER TRAIN. CX Advocate for differential maintenance
TSB35-039-FTL2024-08-02. Service bulletin. POWER TRAIN. Revised Technical Service Bulletin for Detroit New Final Drive Standard Performance Forward Carrier Change to Top Performance Passive Lube Management. Description of Revisions: The bulletin replaces the version dated 05/14/2024. Creation date has been updated.
CXA 06_24_Clutch Bolts2024-07-09. Other. POWER TRAIN. CX Advocate communication for clutch bolts
TSB35-042-FTL2024-06-05. Service bulletin. POWER TRAIN. Technical Service Bulletin for New Final Drive Over Heat Diagnostic
TSB35-039-FTL2024-06-05. Service bulletin. POWER TRAIN. Technical Service Bulletin for Detroit New Final Drive Standard Performance Forward Carrier Change to Top Performance Passive Lube Management
SB54-3482022-06-04. Service bulletin. POWER TRAIN. Updated Freightliner Service Bulletin for Meritor Rear Axle Temperature Parameters. This bulletin replaces the version dated 1/22/2022. The build date in General Information has been added.
ICI22-0172022-05-03. Service bulletin. POWER TRAIN. Important Campaign Information Letter for DDC D21M1 Termination Date Extended. This letter is to inform you that a revised bulletin for Detroit Diesel Field Service Campaign D21M1, DT12 Transmission Drive Shaft Cover Plug Reseal has been EXTENDED for an additional three months. Please use the extended termination date for all work under D21M1 from this point forward. REVISION: D21M1 termination date extended to July 1, 2022.
SB26-0542022-04-01. Service bulletin. POWER TRAIN. Revised Freightliner Service Bulletin for DT12 Transmission Control Harness Chafing the Transmission Control Module
SB54-3482022-02-05. Service bulletin. POWER TRAIN. Meritor Rear Axle Temperature Parameters On Cascadia vehicles equipped with Meritor drive axles, the high temperature warning parameter is set too low for some applications, for vehicles equipped with synthetic oil, and for certain conditions that are not harmful to the axle.
SB26-0542022-01-04. Service bulletin. POWER TRAIN. DT12 Transmission Control Harness Chafing the Transmission Control Module. Classic and New Cascadia vehicles equipped with DT12 transmissions, built from approximately January 2017 to mid-March 2021, may experience rubbing/chafing on the chassis harness near the transmission.
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.
SS10334182021-06-09. Service bulletin. POWER TRAIN. SS1033418 New Cascadia with Cummins Engine will not frank after flashing the SSAM
FAB2092021-05-19. Service bulletin. POWER TRAIN. Freightliner Action Bulletin FAB209 DT12 PTO
FAB1582021-05-18. Service bulletin. POWER TRAIN. Freightliner Action Bulletin FAB158 Cummins Eaton SmartAdvantage

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