2020 Freightliner Business Class M2 Technical Service Bulletins

254 technical service bulletins (TSBs) are on record for the 2020 Freightliner Business Class M2. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 11033095May 15, 2026Exterior lighting. Technical Service Bulletin for Grote OEM and Alliance Aftermarket Headlamp Replacement
• 11033083May 1, 2026Visibility (wipers, defrost, mirrors). Service Solution for A22-82459-000 Wiper Motor Wiring Connector Pinned Wrong (305)
• 11031974Apr 15, 2026Electrical system. Service Solution for Legacy M2 Bulkhead Module (BHM) Replacement and DiagnosticLink Issues
• 11029512Feb 6, 2026Fuel system. My Communications for update on UFU R61709 Fuel Filters
• 11027500Dec 11, 2025Transmission and drivetrain. Fleet Communications for NFD Lower Oil Plug Location - SP Axles
• 11027493Dec 11, 2025Engine. Fleet Communications for Heater Core Plugging
• 11025871Nov 14, 2025Other or unknown. Revised Field Service Campaign for Beverage Body Frame Rail 50 KSI
• 11025870Nov 14, 2025Other or unknown. Revised Field Service Campaign for Beverage Body Frame Rail 50 KSI
• 11024979Oct 30, 2025Fuel system. My Communications for Update to DTNA parts on UFU R61709
• 11025094Oct 16, 2025Brakes. CX Advocate for Experiencing Excessive Purging from Air Dryer
• 11024958Oct 16, 2025Engine. CX Advocate for ConMet Oil Pan Insert Additional Issues
• 11023660Sep 2, 2025Fuel system. My Communications for UFI 0-Ring Announcement
• 11022333Aug 21, 2025Fuel system. My Communications for UPDATE TO DTNA PARTS QUALITY ALERT STOCK HOLD on UFU R61709
• 11022332Aug 18, 2025Fuel system. My Communications for Parts Hold on UFU Filter
• 11019805Jun 24, 2025Other or unknown. Technical Service Bulletin for New Grill Design
• 11020273Jun 11, 2025Steering. Parts Bulletin for Tie Rod Assembly Part Breakdown
• 11019799Jun 4, 2025Electrical system. Service Solution for Legacy M2 Bulkhead Module (BHM) Replacement and Diagnosticlink Issue
• 11016310Mar 20, 2025Steering. CX Advocate for SAS01T to SAS03T replacement (TSB54-373-FTL, TSB54-097-WST)
• 11016309Mar 20, 2025Engine. CX Advocate for NOx conversion low faults
• 11014819Feb 20, 2025Engine. CX Advocate for turbo oil drain cracking
• 11014818Feb 20, 2025Engine. CX Advocate for NOx conversion low faults
• 11014793Feb 12, 2025Electrical system. Revised Service Solution for M2 Plus Fault Code 232/524000/19- ECU CPC data error
• 11014776Feb 6, 2025Engine. Important Campaign Information letter for SF695 – Campaign Replaced by F1012
• 11014785Feb 4, 2025Steering. Technical Service Bulletin for SAS01T to SAS03T Replacement Information
• 11013206Jan 16, 2025Engine. CX Advocate for turbo oil drain cracking
• 11013205Jan 16, 2025Seats. CX Advocate for repairing seat occupancy sensor (TSB 91-016-FTL)
• 11013204Jan 16, 2025Engine. CX Advocate for NOx conversion low faults
• 11013199Jan 16, 2025Engine. CX Advocate for DD13 Gen 5 engines operating at high altitude experience EGR slow response fault.
• 11013196Jan 16, 2025Engine. CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test submissions for the Clean Truck Check.
• 11012312Dec 7, 2024Transmission and drivetrain. Technical Service Bulletin for Detroit New Final Drive Standard Performance Forward Carrier Change to Top Performance Passive Lube Management
• 11011096Nov 21, 2024Transmission and drivetrain, Engine. CX Advocate for M2 and SD Vehicles Transfer Case Failures Due to Excessive Vehicle Speed (SS 3155-FTL)
• 11011082Nov 21, 2024Engine. CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test submissions for the Clean Truck Check.
• 11011075Nov 20, 2024Seats. Technical Service Bulletin for Repairing Seat Occupancy Sensor for ISRI, SEARS and National Truck Seats
• 11011588Nov 19, 2024Transmission and drivetrain. Revised Technical Service Bulletin for Detroit New Final Drive Standard Performance Forward Carrier Change to Top Performance Passive Lube Management.
• 11011105Nov 14, 2024Visibility (wipers, defrost, mirrors). Service Solution for M2 mirror wind noise
• 11011076Nov 11, 2024Engine. Warranty Information letter for Detroit Line or Line Seal, High Pressure Fuel Injector Standard Repair Time Updates
• 11010136Oct 23, 2024Electrical system. Parts Bulletin for Powertrain Power Distribution Module (PTPDM) Kit Replacement
• 11010151Oct 22, 2024Transmission and drivetrain, Engine. Service Solution for M2 and SD Vehicles Transfer Case Failures Due to Excessive Vehicle Speed
• 11010186Oct 17, 2024Engine. CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test submissions for the Clean Truck Check.
• 11010172Oct 17, 2024Engine. CX Advocate for Legacy M2 – Misrated Engines in Emergency Vehicles (SF695)
• 11010143Oct 1, 2024Engine. Service Solution for Detroit Successful Regen Reference for GHG17 DD Engines
• 11008537Sep 19, 2024Engine. CX Advocate for MDEG Updates
• 11008508Sep 16, 2024Engine. Service Solution for Detroit Successful Regen Reference for GHG17 DD Engines
• 11007498Aug 29, 2024Transmission and drivetrain. 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.
• 11007522Aug 15, 2024Engine. CX Advocate for MDEG Updates
• 11007517Aug 15, 2024Engine. CX Advocate for ConMet Oil Pan Insert Additional Failures
• 11005503Jul 18, 2024Engine. CX Advocate for MDEG Updates
• 11005500Jul 18, 2024Engine. CX Advocate for NOx conversion low faults. Update to CXA 6_24_NOx submission.
• 11005494Jul 18, 2024Engine. CX Advocate for ConMet Oil Pan Insert Additional Failures
• 11005462Jul 17, 2024Engine. Important Campaign Information Letter for SF695 – Cummins Engine Emergency Vehicle Calibration

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