2026 Freightliner Business Class M2 technical service bulletins
107 technical service bulletins and manufacturer communications cover the 2026 Freightliner Business Class M2, including one warranty extension.
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Warranty Extension for Frame Rail Paint Standard Warranty Policy Extension
- Customer Advisory Letter for Torque Converter Parameter Mismatch
- Fleet Communications for Adaptive Cruise Control (ACC): Cummins Medium Duty Engines (SF735)
- Fleet Communications for Chelsea PTO Quality Notice (TSB 26-059 FTL, TSB-26-010 WST).
- CX Advocate for Chelsea PTO Quality Notice (TSB 26-059 FTL, TSB-26-010 WST).
- 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 SF735
- Revised Field Service Campaign for Adaptive Cruise Control (ACC): Cummins Medium Duty Engines
- 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 Odometer Pause & PTO Mode Delay with Customer Installed SSPTO &...
- 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
- Warranty Information letter for missing chamber caging bolts
- Technical Service Bulletin for Chelsea PTO Quality Issue
- 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 Progressive Low Voltage Disconnect Parameter Update
- Important Campaign Information for SF735
- 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 Torque Quality
- 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
- Fleet Communications for Hood Tilt CPC update and OI Comfort Mode parameters
- Revised Field Service campaign for Adaptive Cruise Control (ACC): Cummins Medium Duty Engines
- Field Service Campaign for Adaptive Cruise Control (ACC): Cummins Medium Duty Engines
- Field Service Ccampaign for Adaptive Cruise Control (ACC): Cummins Medium Duty Engines
- 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 cab chassis manufacturing
- Fleet Communications for CX Top Quality Issues
- Fleet Communications for Wiring/Airing Routing and Clipping
- Fleet Communications for ECP (Electronic Control Pneumatic) Module Water Ingress
- Fleet Communications for Heater Core Plugging
- Fleet Communications for HVAC Eco Mode
- Technical Service Bulletin Low Coolant Sensor
- CX Advocate for Driveline and mid-ship bearing vibration
- 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 technical questions/issues raised
- CX Advocate for Torque Quality
- CX Advocate for TufTrac Gen2 Suspension Field Issues
- CX Advocate for TufTrac M12 Bolts (TSB-32-057-FTL)
- CX Advocate for Wire/Airing Routing and Clipping
- CX Advocate for Experiencing Excessive Purging from Air Dryer
- US Electric tandem axles with a moffet Email
- 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 Introducing New LED Headlamps on M2 Plus Series
- 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
- Emissions Recall for VECI Label Emissions Recall
- My Communications for Parts Hold on UFU Filter
- MY Communications for Meritor Tandem Drive Axles No Longer Approved in Noise-Sensitive Applications
- Customer letter for Detroit Assurance Kentucky Interstate 71 Road Hazard
- 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
- 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
- Technical Service Bulletin for Disconnection of the Headlight Harness from the Headlight Assembly
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