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Service bulletins for the 2025 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.

282 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
MAN 00000728682026-10-05. Other. POWER TRAIN. Detroit Transmissions Manual Update for Symptom Diagnostics — DT12 C/D Box Range Shift to Neutral with Reversing Events (Aborts)
TSB-42-080-FTL2026-08-03. Service bulletin. POWER TRAIN. Revised Technical Service Bulletin for ABS Wheel Speed Fault Code Correction for MBSP Equipped Vehicles. Updated frequently asked questions.
CXA 06_26_H Plate2026-07-06. Other. POWER TRAIN. CX Advocate for Eliminating Retaining H-Plate; Revised to Native Voss Quick­Connect
TSB-26-057-FTL2026-06-01. Service bulletin. POWER TRAIN. Revised Technical Service Bulletin for DT12 OVX Transmission Refresh
TSB-26-001-DDC2026-05-02. Service bulletin. POWER TRAIN. Revised Technical Service Bulletin for DT12 Range Detent Diagnostic
TSB-26-001-DDC2026-04-02. Other. POWER TRAIN. Technical Service Bulletin for DT12 Range Detent Diagnostic
TSB-26-058-FTL2026-03-27. Service bulletin. POWER TRAIN. Technical Service Bulletin for Transmission shift stalk
TSB-26-055-FTL2026-02-03. Service bulletin. POWER TRAIN. Revised Technical Service Bulletin for DT12 Excessive Wear
CXA_01_26_Trans Support2026-02-03. Other. POWER TRAIN. CX Advocate for Aftermarket Transmission Support
TSB-26-055-FTL2026-02-03. Service bulletin. POWER TRAIN. Technical Service Bulletin for DT12 Excessive Wear
TSB-26-052-FTL2026-02-03. Service bulletin. POWER TRAIN. Technical Service Bulletin for DT12 PTO Upfit
FleetCom_Passive Lube2026-01-08. Other. POWER TRAIN. Fleet Communications for Detroit Axle NFD ALM to Passive Lube Management
FleetCom_Oil Plug Loc2026-01-08. Other. POWER TRAIN. Fleet Communications for NFD Lower Oil Plug Location - SP Axles
FleetCom_NFD Axle2026-01-08. Other. POWER TRAIN. Fleet Communications for Detroit NFD Axle - Factory Fluid Change
FleetCom_TCM Clutch2026-01-07. Other. POWER TRAIN. Fleet Communications for TCM Fault 520970/7 – Clutch Unable to Open Fully
FleetCom_Clutch2025-12-06. Other. POWER TRAIN. Fleet Communications for New AMTcc - DTC 520970/7: Clutch Unable to Open Sufficiently
CXA 11_25_AMTcc DTC2025-12-02. Other. POWER TRAIN. CX Advocate for New AMTcc - DTC 520970/7: Clutch Unable to Open Sufficiently
CXA_10_25_Tech Questions2025-11-05. Other. ELECTRICAL SYSTEM; POWER TRAIN. CX Advocate for technical questions/issues raised
CXA_9_25_Tech Questions2025-10-03. Other. POWER TRAIN; ENGINE. CX Advocate for technical questions/issues raised
CXA_8_25_Tech Questions2025-09-02. Other. POWER TRAIN; ENGINE; UNKNOWN OR OTHER. CX Advocate for technical questions/issues raised
CXA_8_25_TCM CAN2025-09-02. Other. POWER TRAIN. CX Advocate for DT12 - TCM CAN communication issues with CPC
TSB26-056-FTL2025-05-02. Service bulletin. POWER TRAIN. Service Solution for DT12 Oil Plug Ports
CXA 2_25_DT12 TCM Param2025-03-04. Other. POWER TRAIN. CX Advocate for DT12 Delayed Acceleration TCM Parameter Issue
SS3165-FTL2025-03-04. Other. POWER TRAIN. Service Solution for New Cascadia With DT12 Transmission Sluggish Throttle Response or Delayed Shift
TSB26-057-FTL2025-03-04. Service bulletin. POWER TRAIN. DT12 OVX Transmission Refresh

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