2025 Freightliner Business Class M2 technical service bulletins
196 technical service bulletins and manufacturer communications cover the 2025 Freightliner Business Class M2, including 2 warranty extensions.
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Warranty Information letter for Detroit Line or Line Seal, High Pressure Fuel Injector Standard Repair...
- Warranty Policy Letter for Steering Wheel Centering Policy Amendment
- Customer Advisory Letter for Torque Converter Parameter Mismatch
- Revised important Campaign Information letter for Loves Travel Shops Authorized Campaign Program for SF732
- Detroit Transmissions Manual Update for Symptom Diagnostics — DT12 C/D Box Range Shift to Neutral with...
- Important Campaign Information letter for SF732 Revised Bulletin
- Revised Field Service Campaign for Power Acumen Fuse
- Technical Service Bulletin for Front Lighting Ground Splice Pack Failure
- Revised Warranty Information letter for missing chamber caging bolts
- Truck Equipment Manufacturer Solution for PTO Mode Delay for Driving PTO
- Truck Equipment Manufacturer upfit guide for Detroit Assurance Forward Radar Relocation and Adjustment
- CX Advocate for Lost/Damaged Replacement F1011/F1015 Labels
- Field Service campaign for Power Acumen Fuse
- Revised Technical Service Bulletin for Removing Odometer Pause Wiring Modifications
- Warranty Information letter for missing chamber caging bolts
- Truck Equipment Manufacturer Solution for Detroit Assurance Parameters for an Obstructed Multi-Purpose...
- Warranty Information letter for Reman Parts Usage Policy Reminder
- Technical Service Bulletin for Grote OEM and Alliance Aftermarket Headlamp Replacement
- Technical Service Bulletin for Isolator Radiator Mounting, Behr/Mahle
- Truck Equipment Manufacturer Solution for RSS with PTO Engagement
- Service Solution for A22-82459-000 Wiper Motor Wiring Connector Pinned Wrong (305)
- Service Solution for Progressive Low Voltage Disconnect Parameter Update
- Revised Technical Service Bulletin for DT12 Range Detent Diagnostic
- My Communications for ConMet Quality Alert -- ABP 10045888 -- Seal Service Kit
- Parts Bulletin for Discontinued Camera Cable and Replacement Options
- Fleet Communications for solenoid issues
- CX Advocate for 1810/02 ABS longitudinal acceleration fault (TSB-54-104-WST,TSB-54-379-FTL)
- CX Advocate for Cummins B6.7 belt issues
- CX Advocate for discolored coolant surge tanks (24CSA-20)
- Fleet Communications for Hood Tilt CPC update and OI Comfort Mode parameters
- Fleet Communications for TSB-54-379-FTL & TSB-54-104-WST ESC warning lamp and ECU replacement
- Fleet Communications for parts bulletin on Fluorosilicone Fuel Tank Cap Seals
- Parts Bulletin for Fluorosilicone Fuel Tank Cap Seals
- My Communications for Alliance EX Value Brake Drum
- My Communications for update on UFU R61709 Fuel Filters
- My Communications for fifth wheel leg height changes
- Revised Technical Service Bulletin for ESC Warning Lamp and ECU Replacement
- Technical Service Bulletin for ESC Warning Lamp and ECU Replacement
- CX Advocate for Aftermarket Transmission Support
- Technical Service Bulletin for Transmission shift stalk
- Fleet Communications for ECP (Electronic Control Pneumatic) Module Water Ingress
- Fleet Communications for Heater Core Plugging
- Fleet Communications for NFD Lower Oil Plug Location
- Technical Service Bulletin Low Coolant Sensor
- CX Advocate for ECP (Electronic Control Pneumatic) Modules, possible water ingress
- Revised Emissions Recall for VECI Label Emissions Recall
- Important Campaign Information for F1011 & F1015 Campaigns Revised
- My Communications for Update to DTNA parts on UFU R61709
- Service Solution for M2 Plus, 108,114SD Plus and New Cascadia Vehicles, SSL and SSR Non-Functional
- CX Advocate for ConMet Oil Pan Insert Additional Issues
- CX Advocate for Removing Odometer Pause Wiring Modifications (TSB-54-375-FTL, TSB-54-100-WST)
- CX Advocate for technical questions/issues raised
- CX Advocate for TufTrac M12 Bolts (TSB-32-057-FTL)
- CX Advocate for Experiencing Excessive Purging from Air Dryer
- Technical Service Bulletin for Enabling Virtual Regen Request Switch in ICU Menu
- Technical Service Bulletin for Disconnection of the Headlight Harness from the Headlight Assembly
- Technical Service Bulletin for TufTrac M12 Bolts
- CX Advocate for SF715 Stalk Switch Left and Right Inoperative
- Warranty Information letter for Power Steering Tank Venting Diagnostic Procedures Revision
- My communications for DTNA Announces Extended Coverage Policy Updates
- My Communications for UFI 0-Ring Announcement
- Technical Service Bulletin for DT12 Range Detent Diagnostic
- Field Service campaign for stalk switches
- Important Campaign Information letter for F1015 Campaign Revised
- My Communications for UPDATE TO DTNA PARTS QUALITY ALERT STOCK HOLD on UFU R61709
- CX Advocate for KY AEB Notice
- CX Advocate for DT12
- Technical Service Bulletin for Removing Odometer Pause Wiring Modifications
- Emissions Recall for VECI Label Emissions Recall
- My Communications for Parts Hold on UFU Filter
- Revised Customer Service Annoucement for No Trouble Found Heavy Duty Engine Product (HDEP) Oil Separator Leaks
- Customer letter for Detroit Assurance Kentucky Interstate 71 Road Hazard
- CX Advocate for Detroit Assurance MPC/DFC/RLS Bracket Double Sided Adhesive Failures
- CX Advocate for DEF Regen Inhibit Dash Switch Indicator (SF716)
- Technical Service Bulletin for New Grill Design
- CX Advocate for Headlamp Wiring Routing Concern (TSB54-374-FTL)
- Parts Bulletin for Tie Rod Assembly Part Breakdown
- Field Service Campaign for DEF Regen Inhibit Dash Switch Indicator
- Service Solution for DT12 Oil Plug Ports
- Features and Benefits for Detroit Connect Base Service Renewal
- Features and Benefits for Detroit Connect UpfrontService Extension
- CX Advocate for TPMS water intrusion
- CX Advocate for Progressive Low Voltage Disconnect Parameter Update
- CX Advocate for NOx conversion low faults
- CX Advocate for SAS01T to SAS03T replacement (TSB54-373-FTL, TSB54-097-WST)
- CX Advocate for wheel seals
- Service Solution for Tire Pressure Monitoring System (TPMS) Water Intrusion Through Perimeter Seal
- CX Advocate for M2 and SD+ Bodybuilder Marker Lights Turn Off While Truck Lights Remain On
- CX Advocate for M2 Plus, 47X, 49X Fault Code 232/524000/19- ECU CPC data error
- CX Advocate for M2+ With Basic ABS And No XBR Content Losing Throttle In Sharp Turns
- CX Advocate for Cummins Engine with Wired Regen Inhibit Switch (SF703)
- CX Advocate for turbo oil drain cracking
- Revised Service Solution for M2 Plus Fault Code 232/524000/19- ECU CPC data error
- Technical Service Bulletin for Gen 5 DD13 Turbocharger Oil Return Line Cracks
- Technical Service Bulletin for SAS01T to SAS03T Replacement Information
- Detroit Field Service campaign for 2024 HDEP ACM Software Reprogramming.
- Revised Customer Advisory Letter for 114SD’s Ordered with 2-Cylinder Air Compressors Delivered Without...
- CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test...
- CX Advocate for DD13 Gen 5 engines operating at high altitude experience EGR slow response fault.
- CX Advocate for repairing seat occupancy sensor (TSB 91-016-FTL)
- Service Solution for M2+ PTO Mode Delay for Split Shaft PTO Operation
- Customer Advisory Letter for 114SD’s Ordered with 2-Cylinder Air Compressors Delivered Without Pressure...
- Technical Service Bulletin for Detroit New Final Drive Standard Performance Forward Carrier Change to Top...
- Service Solution for M2+ With Basic ABS Losing Throttle On Sharp Turns
- Updated Detroit Ferightliner Action Bulletin for Detroit Connect Safety Plus
- CX Advocate for Crew Cab Rear Door Locks (SF701)
- CX Advocate for HDEP Running Change
- CX Advocate for M2+ dome light
- Service Solution for M2, SD Park brake check valve may be improperly plumbed causing brakes to drag
- Service Solution for M2 and SD+ Bodybuilder Marker Lights Turn Off While Truck Lights Remain On
- Technical Service Bulletin for Repairing Seat Occupancy Sensor for ISRI, SEARS and National Truck Seats
- Revised Technical Service Bulletin for Detroit New Final Drive Standard Performance Forward Carrier Change...
- Detroit Freightliner Action Bulletin for Detroit Connect Safety Plus
- Important Campaign Information letter for SF691 Campaign Suspended
- Service Solution for M2 mirror wind noise
- Field Service Campaign for Cummins Engine with Wired Regen Inhibit Switch
- Important Campaign Information letter for SF691
- Parts Bulletin for Powertrain Power Distribution Module (PTPDM) Kit Replacement
- Revised Field Service Campaign for M2 Plus Work Brake
- CX Advocate for No Virtual Regen Request Switch with Cummins (TSB54-371-FTL)
- CX Advocate for Work Brake Update (SF691)
- CX Advocate for overview of the remanufacturing process.
- Field Service Campaign for Crew Cab Rear Door Locks
- Customer Service Annoucement for Heavy-Duty Engine Product (HDEP) Oil Separator Leaks
- Customer Service Annoucement for Discolored Coolant Surge Tank on Heavy Duty Engine Product (HDEP)
- My Communications for OnGuard Discontinuation on all Daimler Truck products
- Service Solution for Detroit Successful Regen Reference for GHG17 DD Engines
- CX Advocate for MDEG Updates
- CX Advocate for unwanted park brake warning (TSB54-365-FTL)
- Service Solution for M2 Plus Crew Cab Dome Light Does Not Activating With Rear Doors
- Service Solution for M2 & SD Freightliner End of FrameLighting Doesn't Sync with Body Lighting
- Detroit Emissions Recall Campaign for DD13 CARB 24 ACM Software Reprogramming
- Revised Technical Service Bulletin for Detroit New Final Drive Standard Performance Forward Carrier Change...
- Technical Service Bulletin for Disabling the ‘Park Brake Set / Door Open’ Warning and Changing the Part...
- CX Advocate for benefits of Autoelevate and hydrocarbon faults
- CX Advocate for AutoElevate Disablement Gen5 Engines
- Draft Fuel Injection Cleaning Machine (FICM) Setup Instructions
- Fuel Injection Cleaning Machine Priming Procedures
- Cleaning Gen5 Engine Fuel Injectors
- Fuel Injector Cleaner Updated Procedure
- Service Solution for ECP Solenoid Interim Service Replacement Parts
- CX Advocate for NOx conversion low faults
- My Communications for DTNA Tire Communication Update
- Field Service Campaign for M2 Plus Work Brake
- CX Advocate communication for NOx conversion low faults
- CX Advocate communication for oil lines disconnecting
- CX Advocate communication for clutch bolts
- Technical Service Bulletin for New Final Drive Over Heat Diagnostic
- Service Solution for M2+ Split Shaft PTO Configuration with DD13 engines
- Customer letter regarding variable speed water pump.
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