Model year

2014 Mack MRU

Body and fuel not decoded. Owner complaints on file from no date to no date.

Recall campaigns covering this model year755k vehicles or units across those campaigns
Owner complaints0Not enough peers on file
Severity indexNoneCrash, fire, injury or death per 100
First 24 months0Complaints in its first two years
Complaints over time

Complaints about the 2014 Mack MRU by year filed

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

No campaigns match these filters.Reset filters
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

7 recall campaigns cover the 2014 Mack MRU

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 2014 Mack MRU
CampaignFiledSubjectComponentVehiclesRemedy
25V-030Jan 23, 2025Vehicles are missing the anti-lock brake (ABS) warning light and circuitry that controls the anti-lock brake function for an attached trailerBrakes142Repair or modification
15V-275May 11, 2015Excessive engine crankcase pressures may cause the 90-degree elbow of the vent tube assembly to detach from the crankcase ventilation breather,…Engine and cooling2,124Software update
14V-208Apr 18, 2014Hazard warning lights may failLighting44,047Part replacement
14V-137Mar 24, 2014Condensation in the intake manifold may freeze during cold weather conditions and interfere with the proper operation of the intake manifold…Engine and cooling1,934Software update
13V-619Nov 29, 2013When the button is pressed to release the seat belt, the latch plate can become partially engaged with the buckle, making the seat belt difficult…Seat belts39Part replacement
13V-492Oct 17, 2013Pro-torque nut may not have been installed correctly, which may result in a loosening of the nutPowertrain1,155Repair or modification
13V-195May 13, 2013Clevis pin for the brake slack adjuster may be missing a cotter pinBrakes5,203Repair or modification
Source: NHTSA ODI recalls file.
Owner complaints

What owners reported about the 2014 Mack MRU

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.

0 complaints on file.

    Source: NHTSA ODI complaints file.
    Investigations

    NHTSA has not opened an investigation on this model year

    Source: NHTSA ODI investigations file.
    Service bulletins

    211 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.

    • CBR 2573-1 202604 Apr 9, 2026 · Service Bulletin/Repair Instructions
      CBR - Mack Chassis - Through Shaft Bearing Retainer Breakage On Mack Carriers.
    • CBR 2362-3 202604 Apr 9, 2026 · Service Bulletin/Repair Instructions
      CBR - Mack Carrier Nut Adhesive Change.
    • CBR 820-9 202601 Jan 8, 2026 · Service Bulletin/Repair Instructions
      CBR - Mack Chassis - Engine Brake Only Works With The Brake Pedal, No Function During Cruise. US07 And Newer Emissions, Model Year 2008 And Newer.
    • CBR 407 072025 Jul 17, 2025 · Service Bulletin/Repair Instructions
      CBR - To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP file will need to downloaded.
    • CBR 2488 072025 Jul 28, 2025 · Service Bulletin/Repair Instructions
      CBR - A significant GPS reporting issue is affecting fleet operations, with trucks maintaining back-office communication but failing to transmit GPS location data.
    • CBR-561 202503 Mar 6, 2025 · Service Bulletin/Repair Instructions
      If oil dilution is suspected refer to the applicable CBR solution below: ∙ CBR-659􀁡Mack Chassis - Oil Diluted With Fuel; Fuel In Oil, Diagnostic Information - All Emissions, All Model Years
    • CBR-997 202411 Nov 14, 2024 · Service Bulletin/Repair Instructions
      Vehicles may present with oil leak coming from the clutch/flywheel housing and observation of burned clutch smell or clutch slipping. These symptoms can be mistaken as a crankshaft rear main seal leak, when the actual cause is the crankshaft adaptor O-ring.
    • CBR-407 202409 Sep 13, 2024 · Service Bulletin/Repair Instructions
      CBR: To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP fi le will need to be downloaded.
    • CBR-561 202408 Aug 13, 2024 · Service Bulletin/Repair Instructions
      CBR: 11L, 13L, And 16L Engine Oil Analysis Specifications - US10 And Newer Emissions
    • CBR-2350 202407 Jul 2, 2024 · Service Bulletin/Repair Instructions
      CBR: Telematics Gateway (TGW) Connect Ability Issues
    • CBR-2383 202406 Jun 19, 2024 · Service Bulletin/Repair Instructions
      CBR - Accelerator Pedal: Inspection Instructions
    • CBR-2139 202405 May 2, 2024 · Service Bulletin/Repair Instructions
      CBR: Vehicles built with an 11 liter engine may experience a complaint of excessive fuel in the oil. It is possible that the source of the fuel is the rear fuel galley plug in the cylinder head. A new and improved fuel galley plug has been developed to reso…
    • CBR-1008 202404 Apr 22, 2024 · Service Bulletin/Repair Instructions
      CBR: Equipped With An Automated Manual Transmission Model D or F ( AMT-D, AMT-F, mDrive) Missing X1 Value In VDA And Default Settings Guidelines, ParameterP1AOB; Fault Code P1052-54, Error 40,Or Error 18 Encountered During Clutch Or Tran.
    • CBR-2350 202402 Feb 21, 2024 · Service Bulletin/Repair Instructions
      CBR -Telematics Gateway (TGW) Connect Ability Issues
    • CBR-2347 202402 Feb 16, 2024 · Service Bulletin/Repair Instructions
      CBR - Active "Set Park Brake" Message On Drivers Information Display (DID).
    • CBR-202 202402 Feb 16, 2024 · Service Bulletin/Repair Instructions
      CBR - Automated Manual Transmission ( AMT ) Flywheel Pilot Bearing Wear On Input Shaft.
    • CBR-2014 202402 Feb 16, 2024 · Service Bulletin/Repair Instructions
      CBR - Driveline Noise, Suspension Ride Height Too High, Suspension Will Not Exhaust - Chassis Built 2016w01 And Newer.
    • CBR-2333 202401 Jan 18, 2024 · Service Bulletin/Repair Instructions
      CBR: TGW Will Not Connect After SIM Card Replacement
    • EC0028M 202312 Dec 1, 2023 · Service Bulletin/Repair Instructions
      Emissions Campaign: Mack Trucks has determined that certain 2014 - 2018 commercial model year CXU, GU, LEU, LR, MRU Vehicles require a replacement Diesel Particulate Filter (DPF) along with updated software.
    • M-465-001 202311 Nov 7, 2023 · Service Bulletin/Repair Instructions
      TSB: Mack Trucks now offer an improved HD Inter-Axle Through Shaft for the CRD 125, 150, 180, and 200 family carriers. The new HD shaft went into production on January 23rd, 2023 for 2.54 - 3.50 axle ratios and April 1st, 2023 for 3.56 - 3.98 ratios. The ne…
    • CBR-995 202310 Oct 19, 2023 · Service Bulletin/Repair Instructions
      CBR: Telematics Gateway ( TGW, MID 142 ) Losing Communication With The Instrument Cluster ( IC ) - Counts Of Fault Code (FC) MID 140 PSID 239 FMI 12 Data Link, MID 142 Faulty Device or Component Logging, Possibly Following Engine Start.
    • M-258-014 202309 Sep 5, 2023 · Service Bulletin/Repair Instructions
      TSB: Aftertreatment Diesel Exhaust Fluid (DEF) Tank, Level Sensor, Replacement
    • M728-005A 202308 Aug 14, 2023 · Service Bulletin/Repair Instructions
      TSB: Barksdale Leveling Valve, Leak Test
    • CBR-2112 202307 Jul 24, 2023 · Service Bulletin/Repair Instructions
      CBR: Programming Failure - Chassis With Cummins Engine And An Allison Transmission
    • CBR-2303 202307 Jul 1, 2023 · Service Bulletin/Repair Instructions
      CBR: Mack DEF Dosing Valve Diagnostic Trouble Codes (DTC) P202D00, P208E00, P103B00 - US10+OBD13 And Newer Emissions
    • KC-503-Ver3 May 17, 2023 · Service Bulletin/Repair Instructions
      CBR: Automated Manual Transmission ( AMT ) -Transmission Electronic Control Unit ( TECU ) MID130 PSID 29 FMI 7 /P10AE81 Fault Codes Being Generated
    • KC-2229-Ver2 May 10, 2023 · Service Bulletin/Repair Instructions
      CBR: Automated Manual Transmission (AMT) Transmission Kickdown Mode
    • KC-474-Ver5 May 2, 2023 · Service Bulletin/Repair Instructions
      CBR: Diagnostic Trouble Code (DTC) P215A-64, Fault Code SPN 84 FMI 19
    • M-170-003 Apr 18, 2023 · Service Bulletin/Repair Instructions
      TSB: Vibration Diagnostics
    • M-170-002 Apr 18, 2023 · Service Bulletin/Repair Instructions
      TSB: New Vehicle Safety Certification Requirements for Vehicles, U.S. and Canada
    • S7627 Feb 28, 2023 · Service Bulletin/Repair Instructions
      Mack MMD Alternator Pulley
    • KC-2165 Feb 10, 2023 · Service Bulletin/Repair Instructions
      Mack DEF Pump Troubleshooting Guide - US10+OBD13 And Newer Emissions
    • KC-2248 Feb 21, 2023 · Service Bulletin/Repair Instructions
      Flywheel Housing Thread Repair
    • M-728-001 Sep 22, 2022 · Service Bulletin/Repair Instructions
      2008 Document reformatted to be published as a TSB in Impact. Air suspension ride height.
    • M-823-002 Sep 21, 2022 · Service Bulletin/Repair Instructions
      2008 Document reformatted to be published as a TSB in Impact. Grille bar, replacment.
    • M-258-000 Sep 21, 2022 · Service Bulletin/Repair Instructions
      2008 Document reformatted to be published as a TSB in Impact. Water entering the DPF.
    • M-390-001 Sep 15, 2022 · Service Bulletin/Repair Instructions
      2008 Document reformatted to be published as a TSB in Impact. Electrical equipment panel label.
    • M-258-011 Sep 15, 2022 · Service Bulletin/Repair Instructions
      2008 Document reformatted to be published as a TSB in Impact. Differential pressure sensor hose.
    • M-851-001 Sep 15, 2022 · Service Bulletin/Repair Instructions
      2008 Document reformatted to be published as a TSB in Impact. Crack in cab at engine tunnel.
    • M-222-001 Sep 15, 2022 · Service Bulletin/Repair Instructions
      2008 Document reformatted to be published as a TSB in Impact. Loose oil filter spud.
    • M-260-001 Sep 15, 2022 · Service Bulletin/Repair Instructions
      2008 Document reformatted to be published as a TSB in Impact. Cooling system connections.
    • M-721-004 Sep 15, 2022 · Service Bulletin/Repair Instructions
      2008 Document reformatted to be published as a TSB in Impact. Chassis lean.
    • M-801-001 Sep 15, 2022 · Service Bulletin/Repair Instructions
      2008 Document reformatted to be published as a TSB in Impact. Paint protection.
    • M-563-001 Sep 15, 2022 · Service Bulletin/Repair Instructions
      2008 Document reformated to be published as a TSB in Impact. Field repair for the treadle valve.
    • M-374-001 Sep 15, 2022 · Service Bulletin/Repair Instructions
      2008 Document reformated to be published as a TSB in Impact. Revised battery ti battery cable
    • M-265-002 Sep 22, 2022 · Service Bulletin/Repair Instructions
      TSB-Charge Air Cooler t-clamp install.
    • M-255-016 Aug 19, 2022 · Service Bulletin/Repair Instructions
      2009 Document reformatted to be published as a TSB in Impact. Turbo Actuator Connector Repair.
    • M-451-002 Aug 6, 2022 · Service Bulletin/Repair Instructions
      2009 Document reformatted to be published as a TSB in Impact. Axle Carrier Pinion Angles
    • M-561-001 Aug 6, 2022 · Service Bulletin/Repair Instructions
      2009 Document reformated to be published as a TSB in Impact. Air Piping Diagrams.
    • KC-2112 Jun 21, 2022 · Service Bulletin/Repair Instructions
      Programming Failure - Chassis With Cummins Engine And An Allison Transmission
    • KC-2116 Jun 3, 2022 · Service Bulletin/Repair Instructions
      NOx Sensor Troubleshooting Guide - US10+OBD13 And Newer Emissions.
    • KC-2143 Jun 21, 2022 · Service Bulletin/Repair Instructions
      (Back Office) - Cruise Control Inoperative After Updating Software VECU5 Without ESP Package (UESP).
    • KC-2158 Jun 3, 2022 · Service Bulletin/Repair Instructions
      Selective Catalytic Reduction (SCR) Muffler Troubleshooting Guide - US10+OBD13 And Newer Emissions.
    • KC-2165 Jun 3, 2022 · Service Bulletin/Repair Instructions
      DEF Pump Troubleshooting Guide - US10+OBD13 And Newer Emissions.
    • KC-405 Jun 21, 2022 · Service Bulletin/Repair Instructions
      Warranty Automated Manual Transmission ( AMT, I-Shift, mDrive ) Control Housing Assembly; Guidelines For Filing A Claim For Chassis Return Visit With Transmission Issues After A Repair Requiring Control Housing Removal And Reinstallation - US07 And N.
    • KC-735 Jun 6, 2022 · Service Bulletin/Repair Instructions
      Premium Tech Tool (PTT) - Message For Data Mismatch, Product Configuration Mismatch; Instruction To Run An Accessory Kit Displayed When Attempting To Run Diagnostics For Diagnostic Trouble Codes (DTC) Or Programming - US10+OBD13 And Newer Emissions,
    • KC-745 Jun 22, 2022 · Service Bulletin/Repair Instructions
      Automated Manual Transmission ( AMT ) I-Shift / mDRIVE - Ribbon Harness Replacement - Speed Sensor Bolts, Possible Fault Codes P1058 - 21 Or MID 130 PID 161 FMI 1
    • KC-750 Jun 28, 2022 · Service Bulletin/Repair Instructions
      US10 Emission Engines - Diagnostic Trouble Code ( DTC ) SPN 1231 FMI 9 Troubleshooting.
    • KC-751 Jun 28, 2022 · Service Bulletin/Repair Instructions
      Vehicles Equipped With An Automated Manual Transmission Model D or F ( AMT-D, AMT-F ) - Transmission Oil Leakage From Transmission Input Shaft Seal Or Output Shaft Seal - US10 And Newer Emissions, Common Model Years 2010 And Newer.
    • KC-663 May 18, 2022 · Service Bulletin/Repair Instructions
      Emcon (Spark Assist) Engine Aftertreatment System Troubleshooting Check Sheet - US07 Emissions
    Source: NHTSA manufacturer communications files.