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Service bulletins for the 2023 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.

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

By type

By component

Bulletins, newest first
FleetCom_Heater Core2026-01-08. Other. ENGINE. Fleet Communications for Heater Core Plugging
FleetCom_ECU Faults2026-01-08. Other. ELECTRICAL SYSTEM. Fleet Communications for Corrosion Protecton/Glyptal Application
FleetCom_Frnt Susp Spring2026-01-08. Other. SUSPENSION. Fleet Communications for Cascadia Front Suspension Spring Pin Bushings
FleetCom_DT12 Range Shift2026-01-08. Other. POWER TRAIN. Fleet Communications for CY2023 C/D DT12 Range Detent Pin
FleetCom_ABS Wheel Spd2026-01-08. Other. SERVICE BRAKES. Fleet Communications for ABS Wheel Speed Sensor Faults
FleetCom_TCM Clutch2026-01-07. Other. POWER TRAIN. Fleet Communications for TCM Fault 520970/7 – Clutch Unable to Open Fully
TSB54-377-FTL2026-01-07. Service bulletin. ENGINE. Technical Service Bulletin Low Coolant Sensor
FleetCom_SS 3174-FTL2025-12-06. Other. ELECTRICAL SYSTEM. Fleet Communication for SS 3174-FTL
FleetCom_Clutch2025-12-06. Other. POWER TRAIN. Fleet Communications for New AMTcc - DTC 520970/7: Clutch Unable to Open Sufficiently
FleetCom_AMP Draw2025-12-06. Other. ELECTRICAL SYSTEM. Fleet Communications for Key off amp draw
FleetCom_SS 3163-FTL2025-12-06. Other. ENGINE. Fleet Communications for Power Steering Reservoir Fill Cap Venting
FleetCom_Low Coolant2025-12-05. Other. ENGINE. Fleet Communications for Low Coolant Sensor
FleetCom_Bosch Steer Gear2025-12-05. Other. STEERING. Fleet communications for Bosch Steering Gear Replacements
TSB54-364-FTL2025-12-02. Service bulletin. FORWARD COLLISION AVOIDANCE: WARNINGS. Revised Technical Service Bulletin for Wabco OnGuard Display Discrepancy
CXA 11_25_ECU Faults2025-12-02. Other. ELECTRICAL SYSTEM. CX Advocate for Intermittent Connections and ECU Fault Codes
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_Front Shock2025-11-06. Other. SUSPENSION. CX Advocate for 18k Front Suspension Shock Absorbers
CXA 10_25_Discolored Cool2025-11-06. Other. ENGINE. CX Advocate for Plastic Opaque Surge Tank Staining
CXA 10_25_Air Dryer Purge2025-11-06. Other. SERVICE BRAKES. CX Advocate for Experiencing Excessive Purging from Air Dryer
MYCOM_10302025-12025-11-05. Other. FUEL/PROPULSION SYSTEM. My Communications for Update to DTNA parts on UFU R61709
FAB3442025-11-05. Other. FORWARD COLLISION AVOIDANCE: WARNINGS; LANE DEPARTURE: ASSIST; LANE DEPARTURE: WARNING. Features and Benefits for SafetyDirect 5.1
SS3076-FTL2025-11-05. Other. VISIBILITY/WIPER. Service Solution for P4 Main Mirror Arm Covers Loose - Falling Off
CXA_10_25_TufTrac M122025-11-05. Other. SUSPENSION. CX Advocate for TufTrac M12 Bolts (TSB-32-057-FTL)
CXA_10_25_Tech Questions2025-11-05. Other. ELECTRICAL SYSTEM; POWER TRAIN. CX Advocate for technical questions/issues raised
CXA_10_25_Low Coolant2025-11-05. Other. ENGINE. CX Advocate for P4, WST X-Series, DD Engines Low/Critical Low Coolant Warnings

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