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.

• 10166852Oct 31, 2019Brakes, Equipment. Customer Advisory Letter concerning certain Meritor disc brake caliper mounting bolts. An inspection on certain vehicles will be performed.
• 10166801Oct 29, 2019Equipment. WARRANTY INFORMATION LETTER for coverage validation
• 10166800Oct 29, 2019Electrical system, Equipment. Service Bulletin describing changes made to the Powernet Distribution Box (PNDB) for better fuse retention.
• 10166799Oct 29, 2019Equipment. WARRANTY POLICY LETTER- Hold disposition for Parts has been eliminated
• 10166798Oct 29, 2019Equipment. Service bulletin describing that the DiagnoticLink screen images for Chassis ECU programming have ben updated.
• 10166797Oct 29, 2019Body and structure. Service bulletin updating the Important Information section and adding instructions for proper visual inspection distance for paint finish standards.
• 10166782Oct 28, 2019Engine cooling. Technical Service Letter Revision on heavy duty coolant oil module and oil filter change. Older modules will not be compatible with newer module.
• 10166525Oct 25, 2019Equipment, Electrical system. Tool Letter for DAVCO Shop Pro FXP 95-230V compatible for Australia Electrical Systems.
• 10166524Oct 25, 2019Equipment, Electrical system. Tool Letter for DAVCO Shop Pro FXP 95-230V compatible for Chile and Italy Electrical Systems
• 10166512Oct 25, 2019Equipment. Warranty Policy Letter- To assist customers and the service network regarding the Aftermarket Parts Limited Parts Warranty (Parts Warranty).
• 10166510Oct 25, 2019Engine cooling. Customer Service Announcement that eParts is being retired and that PartsPro should be used instead for Detroit Engine Parts Information.
• 10166432Oct 25, 2019Engine cooling. Technical Service Letter communicating that information on DD Heavy Duty Platform Belt and Belt Tensioner can be found on TechLit.
• 10165427Sep 27, 2019Equipment, Engine cooling. Tool Letter for ICC5 Programming Cable
• 10165426Sep 27, 2019Equipment. Warranty Policy Change for Delivery-Related Changes: Electronic Proof of Delivery and Loose Component Claim Filing
• 10165416Sep 27, 2019Fuel system. Service Bulletin for Equiflo Fuel System Breather Tube Inspection
• 10165414Sep 27, 2019Suspension. Service Bulletin for Hendrickson HaulMaax Rear Suspension Transverse Torque Rod Tower Bracket Replacement
• 10165411Sep 27, 2019Engine cooling. Service Bulletin for Air Cleaner Modifications for Dusty Environments
• 10165410Sep 27, 2019Equipment. Service Bulletin on Dealer Product Report
• 10164627Sep 9, 2019Equipment. Customer Service Announcement Letter Revision for Dealers/Distributors Accessing DDEC Backdoor Passwords
• 10164626Sep 9, 2019Transmission and drivetrain, Equipment. Tool Letter for New Final Drive Driver Controlled Differential Lock Spring Compressor. These new axles require a new tool to compress the Driver Controlled Differential Lock (DCDL) spring. To remove and install the DCDL spring, the tool DSN0FDA17001 is needed.
• 10164625Sep 9, 2019Transmission and drivetrain, Equipment. Tool Letter for New Final Drive Pinion Cover Install Tool
• 10164617Sep 9, 2019Body and structure. Communication to assist the field with service vibration issues on DTNA vehicles
• 10164616Sep 9, 2019Electrical system. PowerNet Assessment Tool Repair Procedure
• 10164481Sep 5, 2019Engine cooling. Service Systems Development provided document to service locations on price list reflects current charges to engine horsepower ratings for HDEP and MDEG engine platforms.
• 10164480Sep 5, 2019Engine cooling. Document sent out by Service Systems Development to fix issue related to DD13 engines built between June 5 and July 22, 2019 starting with ESN 471928S0697276,have some incorrect values set which can cause the fan to lock on at all times.
• 10164438Sep 4, 2019Equipment. Warranty Policy Letter to communicate Detroit Return Changes
• 10164437Sep 4, 2019Equipment. Warranty Policy Letter to communicate remarketing handling cap for Detroit DT12 Transmission.
• 10164436Sep 4, 2019Equipment. Warranty Information Letter to announce addition of Thomas Built Bus as a brand with an Authorized Demonstrator Program
• 10164435Sep 4, 2019Suspension. Service Bulletin to fix vehicles which may have an incorrect transverse torque rod tower bracket installed on the rear drive axles at the factory. This can result in cracking at the transverse rod tower where it is welded to the axle housing, premature wearing of the transverse torque rod tapered pin and bushings, and damage to the transverse torque rod frame bracket.
• 10164414Sep 4, 2019Electrical system. Service Bulletin to provide instructions to replace Ignition Control System.The ICU3 is no longer installed in production, and has been superseded by the ICU3S. When replacing an ICU3, the ICU3S must be installed in its place.
• 10164368Sep 3, 2019Equipment. Warranty Information Letter updated to communicate warranty system updates.
• 10163634Aug 7, 2019Engine cooling, Fuel system. Service Information Bulletin for Symptom Diagnostics - Fluid in the Aftertreatment - Diesel Fuel Contamination.
• 10163632Aug 7, 2019Engine cooling, Electrical system. Service Information Bulletin for Communication Loss with a Common Powertrain Controller (CPC) Module (CPC Heartbeat Message is no Longer Arriving)
• 10163630Aug 7, 2019Engine cooling. Service Information Bulletin to updated the Fuel Injector Harness sections and relocated to Engine Electrical section.
• 10163627Aug 7, 2019Equipment, Engine cooling. Service Information Bulletin for DD5 Aftertreatment Systems - DPF End Cap
• 10163625Aug 7, 2019Equipment, Engine cooling. HDEP GHG17 engines are not equipped with turbo wastegates. Steps in this troubleshooting involving wastegates were removed.
• 10163622Aug 7, 2019Engine cooling, Fuel system, Electrical system. The modified parked regeneration strategy has been standard on GHG17 units since the start of GHG17 production and was added to EPA10 and GHG14 units with a software update. The modified regeneration utilizes an improved strategy to clean the DOC inlet face and reduce downtime due to DOC face plugging.
• 10163621Aug 7, 2019Engine cooling. Updates to troubleshooting guides in Diagnostic Link with newest version
• 10163620Aug 7, 2019Equipment, Wheels, Suspension. DTNA Special Tools Group has approved the use of Haweka Axis4000 aftermarket alignment system for use on DTNA products at DTNA service locations. The Axis4000 system uses the reference points required by DTNA for precise, accurate, and repeatable measurements. Axis4000 is a sophisticated, user-friendly system that utilizes computer based camera-radio technology and references the center line of the frame for…
• 10163599Aug 7, 2019Equipment. Warranty Information Letter sent to customers regarding new refrigerator supplier for returning parts.
• 10163421Aug 7, 2019Engine, Fuel system, Equipment. This service kit includes all necessary parts to replace the high pressure fuel rail feed lines, mounting bracket, P-clips and mounting hardware in the event one of these parts are loosened, removed or missing from the engine.
• 10163550Aug 5, 2019Electrical system. Service Bulletin provided to customers regarding ICU3 to ICU3S Replacement
• 10163548Aug 5, 2019Equipment. Training Solution created by DTNA to provide guidance to customers when searching for service information for components and systems not owned by Daimler Trucks North America (DTNA).
• 10163511Aug 5, 2019Body and structure. Warranty Information Letter - Expanded guidelines for paint-related claims sent out to Freightliner, Western star, Thomas Built Bus, Export and Direct warranty customers
• 10193762Mar 5, 2019Equipment, Transmission and drivetrain, Fuel system, Other or unknown. Allison FuelSense 2.0
• 10195484Dec 12, 2017Electrical system. Service Solution SS 1033289 BHM Fault Code SPN 524249 / FMI 7
• 10195640Nov 28, 2017Electrical system. SS 1032728 Bulkhead Module Fault Codes 524280 thru 524286 with FMI 7 Clarification
• 10195561Jul 25, 2017Other or unknown. Service Solution SS 1033180 BHM Fault Code SPN 524251 FMI 7 - Extr...
• 10195659Jul 11, 2017Other or unknown. SS 1032974 High Oil Pressure on 2017 DTNA Vehicles Instrument Cluster Display
• 10195575May 12, 2017Fuel system. Service Solution SS 1033094 KUS Float Tube Fuel Level Sensor Inform...

← All problems reported for the 2020 Freightliner Business Class M2