2025 Mack LR technical service bulletins

Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.

• Jun 22, 2026 Service bulletinThe purpose of this CBR is to provide steps on how to correct a customer complaint of DTC P107B86...
• Apr 9, 2026 Service bulletinCbr
• Apr 9, 2026 Service bulletinCbr
• Apr 2, 2026 Service campaignSc
• Mar 19, 2026 Service bulletinCbr
• Feb 1, 2026 Service campaignSc
• Jan 9, 2026 Service bulletinCbr
• Nov 22, 2025 Service bulletinCbr
• Aug 22, 2025 Service bulletinCbr
• Jul 28, 2025 Service bulletinCbr
• Jul 17, 2025 Service bulletinCbr
• May 28, 2025 Service bulletinInactive Code P25AE00 Being Generated After A Hard Pull And A Momentary Drop In Engine Oil Pressure (Low...
• May 27, 2025 Service bulletinMack DEF Level (UQLS) Sensor Troubleshooting Guide
• May 13, 2025 Service bulletinRemote Control Central Door Lock, Programming; Key Fob Cannot Be Programmed Or Does Not Work After Programming
• Mar 6, 2025 Service bulletinIf oil dilution is suspected refer to the applicable CBR solution below: ∙ CBR-659􀁡Mack Chassis
• Feb 28, 2025 Service bulletinFuel/propulsion system
• Dec 3, 2024 Service bulletinFrame lean can be caused by several seemingly isolated possibilities
• Nov 14, 2024 Service bulletinVehicles may present with oil leak coming from the clutch/flywheel housing and observation of burned...
• Nov 6, 2024 Service bulletinCbr - 11L
• Oct 31, 2024 Service bulletinCbr
• Sep 16, 2024 Service bulletinCBR: Automated Manual Transmission (AMT) Model D or F (mDrive and I-Shift, AMT-D, AMT-F)
• Sep 13, 2024 Service bulletinCBR: To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP fi le will need to be downloaded.
• Sep 10, 2024 Service bulletinCBR: The procedure to eliminate the Mack Chassis "Air Restriction Light On" seen in the cluster is to...
• Aug 13, 2024 Service bulletinCBR: Overhead Wear Overview
• Aug 13, 2024 Service bulletinCbr: 11L, 13L
• Jul 2, 2024 Service bulletinCBR: Telematics Gateway (TGW) Connect Ability Issues
• Jun 19, 2024 Service bulletinCbr
• May 2, 2024 Service bulletinCBR: Vehicles built with an 11 liter engine may experience a complaint of excessive fuel in the oil
• Apr 22, 2024 Service bulletinCBR: Equipped With An Automated Manual Transmission Model D or F ( AMT-D, AMT-F, mDrive) Missing X1 Value...
• Apr 2, 2024 Service bulletinCBR: Turbo Compound (TC) Hot Side Noise, Diagnostic Information.
• Mar 1, 2024 Service bulletinCBR: Vehicles built with an 11 liter engine may experience a complaint of excessive fuel in the oil