• Recalls
• Technical Service Bulletins (TSBs)

2025 MACK LR Technical Service Bulletins

Technical Service Bulletin information provided by National Highway Traffic Safety Administration

• ENGINE

  RECORD_ID: 5024690

  NHTSA Item Number: 11010857

  Replacement Service Bulletin Number: N/A

  Date Added: Dec 1, 2024

  Bulletin Number: CBR-997 202411

  Date Posted: Nov 13, 2024

  MFRINTERNALCAMPAIGNID_SOFTWAREVERSION: N/A

  COMMUNICATIONTYPE: Service Bulletin/Repair Instructions

  Make: MACK

  Model: LR

  Year: 2025

  Component Name: ENGINE

  MFRCOMPONENTSYSTEM: N/A

  MFRCOMPONENTSUBSYSTEM: N/A

  Summary: 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

• ENGINE

  RECORD_ID: 5024583

  NHTSA Item Number: 11010820

  Replacement Service Bulletin Number: N/A

  Date Added: Nov 26, 2024

  Bulletin Number: CBR-2417 202411

  Date Posted: Nov 5, 2024

  MFRINTERNALCAMPAIGNID_SOFTWAREVERSION: N/A

  COMMUNICATIONTYPE: Service Bulletin/Repair Instructions

  Make: MACK

  Model: LR

  Year: 2025

  Component Name: ENGINE

  MFRCOMPONENTSYSTEM: N/A

  MFRCOMPONENTSUBSYSTEM: N/A

  Summary: CBR - 11L Engine block compatibility and Backward Conversion Parts Requirements

• ENGINE

  RECORD_ID: 4991321

  NHTSA Item Number: 11009705

  Replacement Service Bulletin Number: N/A

  Date Added: Nov 3, 2024

  Bulletin Number: CBR-2263 202410

  Date Posted: Oct 30, 2024

  MFRINTERNALCAMPAIGNID_SOFTWAREVERSION: N/A

  COMMUNICATIONTYPE: Service Bulletin/Repair Instructions

  Make: MACK

  Model: LR

  Year: 2025

  Component Name: ENGINE

  MFRCOMPONENTSYSTEM: N/A

  MFRCOMPONENTSUBSYSTEM: N/A

  Summary: CBR - Mack Chassis - Timing Gear Plate Repair

• POWER TRAIN

  RECORD_ID: 4937080

  NHTSA Item Number: 11008377

  Replacement Service Bulletin Number: N/A

  Date Added: Oct 2, 2024

  Bulletin Number: CBR-731 202409

  Date Posted: Sep 15, 2024

  MFRINTERNALCAMPAIGNID_SOFTWAREVERSION: N/A

  COMMUNICATIONTYPE: Service Bulletin/Repair Instructions

  Make: MACK

  Model: LR

  Year: 2025

  Component Name: POWER TRAIN

  MFRCOMPONENTSYSTEM: N/A

  MFRCOMPONENTSUBSYSTEM: N/A

  Summary: CBR: Automated Manual Transmission (AMT) Model D or F (mDrive and I-Shift, 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

• ELECTRICAL SYSTEM

  RECORD_ID: 4936894

  NHTSA Item Number: 11008368

  Replacement Service Bulletin Number: N/A

  Date Added: Oct 2, 2024

  Bulletin Number: CBR-471 202409

  Date Posted: Sep 9, 2024

  MFRINTERNALCAMPAIGNID_SOFTWAREVERSION: N/A

  COMMUNICATIONTYPE: Service Bulletin/Repair Instructions

  Make: MACK

  Model: LR

  Year: 2025

  Component Name: ELECTRICAL SYSTEM

  MFRCOMPONENTSYSTEM: N/A

  MFRCOMPONENTSUBSYSTEM: N/A

  Summary: CBR: The procedure to eliminate the Mack Chassis "Air Restriction Light On" seen in the cluster is to confirm that the parameter YYT is set to "Enable" with Premium Tech Tool.

• SERVICE BRAKES

  RECORD_ID: 4936787

  NHTSA Item Number: 11008366

  Replacement Service Bulletin Number: N/A

  Date Added: Oct 2, 2024

  Bulletin Number: CBR-407 202409

  Date Posted: Sep 12, 2024

  MFRINTERNALCAMPAIGNID_SOFTWAREVERSION: N/A

  COMMUNICATIONTYPE: Service Bulletin/Repair Instructions

  Make: MACK

  Model: LR

  Year: 2025

  Component Name: SERVICE BRAKES

  MFRCOMPONENTSYSTEM: N/A

  MFRCOMPONENTSUBSYSTEM: N/A

  Summary: CBR: To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP fi le will need to be downloaded.

• ENGINE

  RECORD_ID: 4874565

  NHTSA Item Number: 11006925

  Replacement Service Bulletin Number: N/A

  Date Added: Sep 3, 2024

  Bulletin Number: CBR-561 202408

  Date Posted: Aug 12, 2024

  MFRINTERNALCAMPAIGNID_SOFTWAREVERSION: N/A

  COMMUNICATIONTYPE: Service Bulletin/Repair Instructions

  Make: MACK

  Model: LR

  Year: 2025

  Component Name: ENGINE

  MFRCOMPONENTSYSTEM: N/A

  MFRCOMPONENTSUBSYSTEM: N/A

  Summary: CBR: 11L, 13L, And 16L Engine Oil Analysis Specifications - US10 And Newer Emissions

• ENGINE

  RECORD_ID: 4874490

  NHTSA Item Number: 11006924

  Replacement Service Bulletin Number: N/A

  Date Added: Sep 3, 2024

  Bulletin Number: CBR-523 202408

  Date Posted: Aug 12, 2024

  MFRINTERNALCAMPAIGNID_SOFTWAREVERSION: N/A

  COMMUNICATIONTYPE: Service Bulletin/Repair Instructions

  Make: MACK

  Model: LR

  Year: 2025

  Component Name: ENGINE

  MFRCOMPONENTSYSTEM: N/A

  MFRCOMPONENTSUBSYSTEM: N/A

  Summary: CBR: Overhead Wear Overview - Model Year2018 To Current (Common Rail Fuel System ONLY)

• ELECTRICAL SYSTEM

  RECORD_ID: 4815682

  NHTSA Item Number: 11005410

  Replacement Service Bulletin Number: N/A

  Date Added: Jul 31, 2024

  Bulletin Number: CBR-2350 202407

  Date Posted: Jul 1, 2024

  MFRINTERNALCAMPAIGNID_SOFTWAREVERSION: N/A

  COMMUNICATIONTYPE: Service Bulletin/Repair Instructions

  Make: MACK

  Model: LR

  Year: 2025

  Component Name: ELECTRICAL SYSTEM

  MFRCOMPONENTSYSTEM: N/A

  MFRCOMPONENTSUBSYSTEM: N/A

  Summary: CBR: Telematics Gateway (TGW) Connect Ability Issues

• ELECTRICAL SYSTEM

  RECORD_ID: 4778267

  NHTSA Item Number: 11003042

  Replacement Service Bulletin Number: N/A

  Date Added: Jul 2, 2024

  Bulletin Number: CBR-2383 202406

  Date Posted: Jun 18, 2024

  MFRINTERNALCAMPAIGNID_SOFTWAREVERSION: N/A

  COMMUNICATIONTYPE: Service Bulletin/Repair Instructions

  Make: MACK

  Model: LR

  Year: 2025

  Component Name: ELECTRICAL SYSTEM

  MFRCOMPONENTSYSTEM: N/A

  MFRCOMPONENTSUBSYSTEM: N/A

  Summary: CBR - Accelerator Pedal: Inspection Instructions

• VEHICLE SPEED CONTROL

  RECORD_ID: 4778266

  NHTSA Item Number: 11003042

  Replacement Service Bulletin Number: N/A

  Date Added: Jul 2, 2024

  Bulletin Number: CBR-2383 202406

  Date Posted: Jun 18, 2024

  MFRINTERNALCAMPAIGNID_SOFTWAREVERSION: N/A

  COMMUNICATIONTYPE: Service Bulletin/Repair Instructions

  Make: MACK

  Model: LR

  Year: 2025

  Component Name: VEHICLE SPEED CONTROL

  MFRCOMPONENTSYSTEM: N/A

  MFRCOMPONENTSUBSYSTEM: N/A

  Summary: CBR - Accelerator Pedal: Inspection Instructions

• UNKNOWN OR OTHER

  RECORD_ID: 4778265

  NHTSA Item Number: 11003042

  Replacement Service Bulletin Number: N/A

  Date Added: Jul 2, 2024

  Bulletin Number: CBR-2383 202406

  Date Posted: Jun 18, 2024

  MFRINTERNALCAMPAIGNID_SOFTWAREVERSION: N/A

  COMMUNICATIONTYPE: Service Bulletin/Repair Instructions

  Make: MACK

  Model: LR

  Year: 2025

  Component Name: UNKNOWN OR OTHER

  MFRCOMPONENTSYSTEM: N/A

  MFRCOMPONENTSUBSYSTEM: N/A

  Summary: CBR - Accelerator Pedal: Inspection Instructions

• FUEL/PROPULSION SYSTEM

  RECORD_ID: 4720801

  NHTSA Item Number: 11000831

  Replacement Service Bulletin Number: N/A

  Date Added: Jun 3, 2024

  Bulletin Number: CBR-2139 202405

  Date Posted: May 1, 2024

  MFRINTERNALCAMPAIGNID_SOFTWAREVERSION: N/A

  COMMUNICATIONTYPE: Service Bulletin/Repair Instructions

  Make: MACK

  Model: LR

  Year: 2025

  Component Name: FUEL/PROPULSION SYSTEM

  MFRCOMPONENTSYSTEM: N/A

  MFRCOMPONENTSUBSYSTEM: N/A

  Summary: 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 res

• ENGINE

  RECORD_ID: 4720785

  NHTSA Item Number: 11000831

  Replacement Service Bulletin Number: N/A

  Date Added: Jun 3, 2024

  Bulletin Number: CBR-2139 202405

  Date Posted: May 1, 2024

  MFRINTERNALCAMPAIGNID_SOFTWAREVERSION: N/A

  COMMUNICATIONTYPE: Service Bulletin/Repair Instructions

  Make: MACK

  Model: LR

  Year: 2025

  Component Name: ENGINE

  MFRCOMPONENTSYSTEM: N/A

  MFRCOMPONENTSUBSYSTEM: N/A

  Summary: 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 res

• ENGINE AND ENGINE COOLING

  RECORD_ID: 4683753

  NHTSA Item Number: 10253807

  Replacement Service Bulletin Number: N/A

  Date Added: Apr 30, 2024

  Bulletin Number: CBR-2013 202404

  Date Posted: Apr 1, 2024

  MFRINTERNALCAMPAIGNID_SOFTWAREVERSION: N/A

  COMMUNICATIONTYPE: Service Bulletin/Repair Instructions

  Make: MACK

  Model: LR

  Year: 2025

  Component Name: ENGINE AND ENGINE COOLING

  MFRCOMPONENTSYSTEM: N/A

  MFRCOMPONENTSUBSYSTEM: N/A

  Summary: CBR: Turbo Compound (TC) Hot Side Noise, Diagnostic Information.

• POWER TRAIN

  RECORD_ID: 4683602

  NHTSA Item Number: 10253804

  Replacement Service Bulletin Number: N/A

  Date Added: Apr 30, 2024

  Bulletin Number: CBR-1008 202404

  Date Posted: Apr 21, 2024

  MFRINTERNALCAMPAIGNID_SOFTWAREVERSION: N/A

  COMMUNICATIONTYPE: Service Bulletin/Repair Instructions

  Make: MACK

  Model: LR

  Year: 2025

  Component Name: POWER TRAIN

  MFRCOMPONENTSYSTEM: N/A

  MFRCOMPONENTSUBSYSTEM: N/A

  Summary: 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.

• ENGINE AND ENGINE COOLING

  RECORD_ID: 4643758

  NHTSA Item Number: 10252308

  Replacement Service Bulletin Number: N/A

  Date Added: Apr 1, 2024

  Bulletin Number: CBR-2139 202403

  Date Posted: Feb 29, 2024

  MFRINTERNALCAMPAIGNID_SOFTWAREVERSION: N/A

  COMMUNICATIONTYPE: Service Bulletin/Repair Instructions

  Make: MACK

  Model: LR

  Year: 2025

  Component Name: ENGINE AND ENGINE COOLING

  MFRCOMPONENTSYSTEM: N/A

  MFRCOMPONENTSUBSYSTEM: N/A

  Summary: 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.