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Model year

2020 Freightliner Business Class M2

Truck, diesel, 4x2, built in Mexico. Owner complaints on file from Jul 5, 2022 to May 3, 2024.

Recall campaigns covering this model year12331k vehicles or units across those campaigns
Owner complaints88.0 times the median 2020 truck
Severity index0.02020 trucks average 3.5
First 24 months0Complaints in its first two years
Complaints over time

Complaints about the 2020 Freightliner Business Class M2 peaked in 2024, with 7 filed

Owner complaints about this model year, by the year they were filed with NHTSA.

02468202220232024720252026
Source: NHTSA ODI complaints file. The lighter column runs through October.
Components

Complaints by component

Owner complaints by component. Hover or focus a bar for the crash, fire, injury or death count.

No campaigns match these filters.Reset filters
Source: NHTSA ODI complaints file. A complaint can name more than one component; it is counted under the first.
Recalls

12 recall campaigns cover the 2020 Freightliner Business Class M2

Check a specific vehicle by VIN on NHTSA's site: a campaign may cover only part of a model year's production.

Recall campaigns for the 2020 Freightliner Business Class M2
CampaignFiledSubjectComponentVehiclesRemedy
25V-760Nov 4, 2025Axle clamp fasteners may be loose, which can result in a loss of vehicle controlSuspension18,783Repair or modification
24V-924Dec 11, 2024Engine protection and inducement software may cause the engine to shut down unexpectedlyEngine and cooling139Software update
22V-919Dec 12, 2022Vehicles are equipped with tires that are not compatible with their 8.25-inch rimsTires49Part replacement
22V-817Nov 1, 2022Brake modulator valves on the front axle may corrode and cause the vehicle to pull to the affected side during an Adaptive Cruise Control (ACC)…Driver assistance219,390Software update
22V-118Mar 2, 2022Brake drum may contact the hub assembly, causing the brake drum to crackBrakes11Not stated
21V-326May 7, 2021Sealing washer may not seat correctly in the pilot bore holes, allowing the high pressure fuel rail assembly to leakFuel system9,662Part replacement
20V-527Sep 1, 2020Engine harness wires may chafe at various locations around the air compressor and the frame railElectrical system9,665Repair or modification
20V-466Aug 7, 2020Engine harness may contact and chafe at various locations around the air compressor and the frame railElectrical system5,374Repair or modification
20V-214Apr 14, 2020Rear reflective tape may be partially covered by the mudflap hanger bracket, which may reduce the vehicle's visibility to other drivers on the roadLighting63,175Inspection
20V-176Mar 23, 2020Axles may have insufficient lubrication, which may result in damage to the wheel end bearingsPowertrain1,532Part replacement
20V-127Mar 3, 2020Brake caliper mounting bolts may have been insufficiently tightenedBrakes2,585Repair or modification
19V-443Jun 11, 2019Axles may have insufficient lubrication, which may result in damage to the wheel end bearingsPowertrain809Part replacement
Source: NHTSA ODI recalls file.
Owner complaints

What owners reported about the 2020 Freightliner Business Class M2

The full text of every complaint filed with NHTSA about this model year, newest first. Complaints are filed by owners and are not verified by NHTSA; NHTSA removes personal details before publishing.

8 complaints on file, page 1 of 1.

  1. Filed May 3, 2024Failure Jul 19, 2023Cincinnati, OHUnknown or other

    The DEF header failed on this truck and it causes the vehicle to be disabled. The DEF header is an emissions part. PART NUMBER 04-31354-004 HEADER-SSI,CONC,6 BOLT,CMNS

    NHTSA complaint 11586806
  2. Filed May 3, 2024Failure Jun 21, 2023Cincinati, OHUnknown or other

    The DEF header failed on this truck and it causes the vehicle to be disabled. The DEF header is an emissions part. PART NUMBER 04-31354-004 HEADER-SSI,CONC,6 BOLT,CMNS

    NHTSA complaint 11586793
  3. Filed May 3, 2024Failure Jun 19, 2023Cincinnati, OHUnknown or other

    The DEF header failed on this truck and it causes the vehicle to be disabled. The DEF header is an emissions part. PART NUMBER 04-31354-004 HEADER-SSI,CONC,6 BOLT,CMNS

    NHTSA complaint 11586786
  4. Filed May 3, 2024Failure May 22, 2023Cincinnati, OHUnknown or other

    The DEF header failed on this truck and it causes the vehicle to be disabled. The DEF header is an emissions part. PART NUMBER 04-31354-004 HEADER-SSI,CONC,6 BOLT,CMNS

    NHTSA complaint 11586782
  5. Filed May 3, 2024Failure Jul 19, 2023Cincinnati, OHUnknown or other

    The DEF header failed on this truck and it causes the vehicle to be disabled. The DEF header is an emissions part. PART NUMBER 04-31354-004 HEADER-SSI,CONC,6 BOLT,CMNS

    NHTSA complaint 11586768
  6. Filed May 3, 2024Failure Jun 21, 2023Cincinnati, OHUnknown or other

    The DEF header failed on this truck and it causes the vehicle to be disabled. The DEF header is an emissions part. PART NUMBER 04-31354-004 HEADER-SSI,CONC,6 BOLT,CMNS

    NHTSA complaint 11586760
  7. Filed May 3, 2024Failure Jun 19, 2023Cincinnati, OHUnknown or other

    The DEF header failed on this truck and it causes the vehicle to be disabled. The DEF header is an emissions part. PART NUMBER 04-31354-004 HEADER-SSI,CONC,6 BOLT,CMNS

    NHTSA complaint 11586758
  8. Filed Jul 5, 2022Failure Jul 1, 2022Dunkirk, OHUnknown or other

    Attached to this is the federal certification label for an Ultra Liner 45 built on the Freightliner chassis. Executive Coach Builders is building this bus, National Bus Sales is selling this bus to schools in Oklahoma and Texas. The states have allowed that, but as an OEM that goes against what is currently allowed.

    NHTSA complaint 11472393
Source: NHTSA ODI complaints file.
Investigations

NHTSA has not opened an investigation on this model year

Source: NHTSA ODI investigations file.
Service bulletins

254 manufacturer communications cover this model year

Technical service bulletins and other notices the manufacturer sent to dealers. A bulletin is not a recall; the 60 most recent are listed.

  • TSB-54-384-FTL May 15, 2026 · Service Bulletin/Repair Instructions
    Technical Service Bulletin for Grote OEM and Alliance Aftermarket Headlamp Replacement
  • SS 583814 May 1, 2026 · Other
    Service Solution for A22-82459-000 Wiper Motor Wiring Connector Pinned Wrong (305)
  • SS 3124-FTL Apr 15, 2026 · Other
    Service Solution for Legacy M2 Bulkhead Module (BHM) Replacement and DiagnosticLink Issues
  • MyCom_02062026-1 Feb 6, 2026 · Other
    My Communications for update on UFU R61709 Fuel Filters
  • FleetCom_Oil Plug Loc Dec 11, 2025 · Other
    Fleet Communications for NFD Lower Oil Plug Location - SP Axles
  • FleetCom_Heater Core Dec 11, 2025 · Other
    Fleet Communications for Heater Core Plugging
  • SF671-DLR LTR Nov 14, 2025 · Service Campaign
    Revised Field Service Campaign for Beverage Body Frame Rail 50 KSI
  • SF671-Bulletin Nov 14, 2025 · Service Campaign
    Revised Field Service Campaign for Beverage Body Frame Rail 50 KSI
  • CXA 10_25_Air Dryer Purge Oct 16, 2025 · Other
    CX Advocate for Experiencing Excessive Purging from Air Dryer
  • MYCOM_10302025-1 Oct 30, 2025 · Other
    My Communications for Update to DTNA parts on UFU R61709
  • CXA_10_25_Conmet Oil Pan Oct 16, 2025 · Other
    CX Advocate for ConMet Oil Pan Insert Additional Issues
  • MYCOM_09022025-1 Sep 2, 2025 · Other
    My Communications for UFI 0-Ring Announcement
  • MYCOM_08212025-1 Aug 21, 2025 · Other
    My Communications for UPDATE TO DTNA PARTS QUALITY ALERT STOCK HOLD on UFU R61709
  • MYCOM_08182025-1 Aug 18, 2025 · Other
    My Communications for Parts Hold on UFU Filter
  • PB33-004-FTL Jun 11, 2025 · Service Bulletin/Repair Instructions
    Parts Bulletin for Tie Rod Assembly Part Breakdown
  • TSB88-048-FTL Jun 24, 2025 · Service Bulletin/Repair Instructions
    Technical Service Bulletin for New Grill Design
  • SS3124-FTL Jun 4, 2025 · Other
    Service Solution for Legacy M2 Bulkhead Module (BHM) Replacement and Diagnosticlink Issue
  • CXA 3_25_SAS01T to SAS03T Mar 20, 2025 · Other
    CX Advocate for SAS01T to SAS03T replacement (TSB54-373-FTL, TSB54-097-WST)
  • CXA 3_25_NOx Mar 20, 2025 · Other
    CX Advocate for NOx conversion low faults
  • CXA 2_25_Turbo Oil Drain Feb 20, 2025 · Other
    CX Advocate for turbo oil drain cracking
  • CXA 2_25_NOx Feb 20, 2025 · Other
    CX Advocate for NOx conversion low faults
  • SS3143-FTL Feb 12, 2025 · Other
    Revised Service Solution for M2 Plus Fault Code 232/524000/19- ECU CPC data error
  • TSB54-373-FTL Feb 4, 2025 · Service Bulletin/Repair Instructions
    Technical Service Bulletin for SAS01T to SAS03T Replacement Information
  • ICI25-004 Feb 6, 2025 · Other
    Important Campaign Information letter for SF695 – Campaign Replaced by F1012
  • CXA 1_16_Turbo Oil Drain Jan 16, 2025 · Other
    CX Advocate for turbo oil drain cracking
  • CXA 1_16_Seat Occupancy Jan 16, 2025 · Other
    CX Advocate for repairing seat occupancy sensor (TSB 91-016-FTL)
  • CXA 1_16_NOx Jan 16, 2025 · Other
    CX Advocate for NOx conversion low faults
  • CXA 1_16_DD13 Altitude Jan 16, 2025 · Other
    CX Advocate for DD13 Gen 5 engines operating at high altitude experience EGR slow response fault.
  • CXA 1_16_CARB Truck Chec Jan 16, 2025 · Other
    CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test submissions for the Clean Truck Check.
  • TSB35-039-FTL Dec 7, 2024 · Service Bulletin/Repair Instructions
    Technical Service Bulletin for Detroit New Final Drive Standard Performance Forward Carrier Change to Top Performance Passive Lube Management
  • TSB35-039-FTL Nov 19, 2024 · Service Bulletin/Repair Instructions
    Revised Technical Service Bulletin for Detroit New Final Drive Standard Performance Forward Carrier Change to Top Performance Passive Lube Management.
  • SS1032998-FTL Nov 14, 2024 · Other
    Service Solution for M2 mirror wind noise
  • CXA 11_21_M2, SD Transfer Nov 21, 2024 · Other
    CX Advocate for M2 and SD Vehicles Transfer Case Failures Due to Excessive Vehicle Speed (SS 3155-FTL)
  • CXA 11_21_CARB Truck Chec Nov 21, 2024 · Other
    CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test submissions for the Clean Truck Check.
  • WI24-019 Nov 11, 2024 · Warranty Program/Extension
    Warranty Information letter for Detroit Line or Line Seal, High Pressure Fuel Injector Standard Repair Time Updates
  • TSB91-016-FTL Nov 20, 2024 · Service Bulletin/Repair Instructions
    Technical Service Bulletin for Repairing Seat Occupancy Sensor for ISRI, SEARS and National Truck Seats
  • CXA_10_17_CARB Truck Chec Oct 17, 2024 · Other
    CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test submissions for the Clean Truck Check.
  • CXA 10_17_Misrated engine Oct 17, 2024 · Other
    CX Advocate for Legacy M2 – Misrated Engines in Emergency Vehicles (SF695)
  • SS3155-FTL Oct 22, 2024 · Other
    Service Solution for M2 and SD Vehicles Transfer Case Failures Due to Excessive Vehicle Speed
  • SS1023366-Detroit Oct 1, 2024 · Other
    Service Solution for Detroit Successful Regen Reference for GHG17 DD Engines
  • PB01-009 Oct 23, 2024 · Other
    Parts Bulletin for Powertrain Power Distribution Module (PTPDM) Kit Replacement
  • CXA 9_24_MDEG Updates Sep 19, 2024 · Other
    CX Advocate for MDEG Updates
  • SS1023366-Detroit Sep 16, 2024 · Other
    Service Solution for Detroit Successful Regen Reference for GHG17 DD Engines
  • CXA 8_24_MDEG Updates Aug 15, 2024 · Other
    CX Advocate for MDEG Updates
  • CXA 8_24_Conmet Oil Pan Aug 15, 2024 · Other
    CX Advocate for ConMet Oil Pan Insert Additional Failures
  • TSB35-039-FTL Aug 29, 2024 · Service Bulletin/Repair Instructions
    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.
  • CXA 7_24_MDEG Updates Jul 18, 2024 · Other
    CX Advocate for MDEG Updates
  • CXA 7_24_NOx Jul 18, 2024 · Other
    CX Advocate for NOx conversion low faults. Update to CXA 6_24_NOx submission.
  • CXA 7_24_Conmet Oil Pan Jul 18, 2024 · Other
    CX Advocate for ConMet Oil Pan Insert Additional Failures
  • TSB35-039-FTL Jul 1, 2024 · Service Bulletin/Repair Instructions
    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.
  • ICI24-029 Jul 17, 2024 · Other
    Important Campaign Information Letter for SF695 – Cummins Engine Emergency Vehicle Calibration
  • CALFTL13-002 Jul 17, 2024 · Service Bulletin/Repair Instructions
    Customer Advisory Letter for Proactive Air Compressor, Resonator, and Suction Line Replacement
  • CXA 06_24_Clutch Bolts Jun 21, 2024 · Other
    CX Advocate communication for clutch bolts
  • CXA 06_24_NOx Jun 21, 2024 · Other
    CX Advocate communication for NOx conversion low faults
  • SF671_V2-DLR LTR Jun 21, 2024 · Service Campaign
    Revised Field Service Campaign for Beverage Body Frame Rail 50 KSI. REVISION: 3 new SRTs and repair procedures have been created to address specific issues that arise during the repair.
  • SF671_V2-Bulletin Jun 21, 2024 · Service Campaign
    Revised Field Service Campaign for Beverage Body Frame Rail 50 KSI. REVISION: 3 new SRTs and repair procedures have been created to address specific issues that arise during the repair.
  • ICI24-025 Jun 21, 2024 · Service Campaign
    Revised Important Campaign Inofrmation letter for SF671 - Bulletin Revision. REVISION: 3 new SRTs and repair procedures have been created to address specific issues that arise during the repair.
  • VSWP Customer Letter May 21, 2024 · Other
    Customer letter regarding variable speed water pump.
  • SF672 POSTCARD LARGE May 21, 2024 · Service Campaign
    Field Service Campaign Owner Reminder Postcard large population
  • SF672 POSTCARD SMALL May 21, 2024 · Service Campaign
    Field Service Campaign Owner Reminder Postcard small population
Source: NHTSA manufacturer communications files.