CBR 2599 202608
Service Bulletin/Repair Instructions
The purpose of this CBR is to provide support for complaints of trailer braking aggressively.
Vehicle report
Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
CBR 2599 202608
The purpose of this CBR is to provide support for complaints of trailer braking aggressively.
CBR 2598 202608
The purpose of this CBR is to provide steps on how to utilize the injector widget (within workshop toolbox) to aid with injection system issues.
CBR 2597 202608
The purpose of this CBR is to provide steps on how to correct a customer complaint of "Service Required" message for air filter replacement appears in the cluster. There may be no option in PTT or the cluster to reset the air filter service interval.
CBR 2596 202608
The purpose of this CBR is to provide steps on how to correct a customer complaint of a no crank/engine start condition.
TSB M-590-001 072026
TSB - Wheel Speed Sensor Fitting And Cable Clamping.
CBR 2585-3 072026
CBR - The purpose of this CBR is to provide support for fault codes C106718 and/or C106818.
CBR 2545-3 072026
CBR - The purpose of this CBR is to provide guidance on fault code U114688.
TSB M-371-005 072026
TSB - Jumper Harness Repair.
CBR-2592-1 202606
The purpose of this CBR is to provide steps on how to correct a customer complaint of DTC P107B86 accompanied With intermittent loss of throttle.
CBR-2590-2 202606
The purpose of this CBR is to provide steps on how to correct a customer complaint of instrument cluster going dark (blackout) situation.
CBR-2591-1 202606
The purpose of this CBR it to provide release notes for the recent Engine ECU software.
CBR-2496-16 202606
The purpose of this CBR is outline the interim software solution for PR(4) and AN(4).
CBR-2568-5 202606
Contact Workshop; Communication Lost With Ultracapacitor Message With Associated CCIOM DTC U100687 And A Startability Issue.
CBR-2587-2 202606
The purpose of this cbr is to provide steps on how to protect the alternator power cable connection from corrosion.
CBR-2586-1 202606
The purpose of this CBR is to address issues of exhaust stack rotation on version 4 products.
CBR 2456-6 202605
Infotainment Update for Missing Apps, Navigation, and Apple/Android CarPlay Issues
CBR-2465-7 202606
The purpose of this CBR is to help diagnosis issues with the Proactive Engine Restart system and Hood Open popup message.
CBR-2588-2 202606
The purpose of this CBR is to provide aid in VMCU fault B1524-49 along with a Rain sensor which will not calibrate.
CBR 2465-6 202605
CBR to diagnosis issues with the Proactive Engine Restart system and Hood Open message.
GDC26-02 202605
Fault diagnostic information for Supplemental Restraint / Airbag Inflation System (SRS)
CBR 2587-1 202605
CBR to provide steps on how to protect the alternator power cable connection from corrosion.
CBR 2583-1 202605
Tire Pressure Monitoring System U101A / U101B Fault Solution
CBR 2496-14 202605
CBR to address when you should update to 3.0 service pack software update.
CBR 2585-1 202605
CBR to provide support for fault codes C106718 and/or C106818.
CBR 2584-4 202605
Electronically controlled suspension (ECS) calibration procedure.
CBR 2502-7 202605
Mack Chassis - Battery Sensor Diagnostic, Calibration, and Configuration Procedure
CBR 2568-3 202604
CBR - Communication Lost With Ultracapacitor Message With Associated CCIOM DTC U100687 and a Startability Issue.
GDC26-001 202604
GDC - Transmission Oil Level Sensor
CBR 2574 202604
CBR - Manual TPMS Wheel Sensor Calibration.
CBR 2562-15 202604
CBR - Electric Pneumatic Module (EPM) Fault
CBR 2569-3 202604
CBR - Brake Pad Wear Indicator DTC C107E68.
CBR 2540-7 202604
CBR - Upper Bunk Restraint System – Plastic Gable Retention Field Fix.
CBR 2362-3 202604
CBR - Mack Carrier Nut Adhesive Change.
CBR 2573-1 202604
CBR - Mack Chassis - Through Shaft Bearing Retainer Breakage On Mack Carriers.
CBR 2570-1 032026
CBR - EBS - Electro-Pneumatic Module - Signal Compare Failure DTC C109562 - AN (4) - PR.
CBR 2712-7 032026
CBR - No Start Condition After Over the Air Programing.
CBR 2564-1 032026
CBR - Check Radar Pop Up Message.
CBR 2565-1 032026
CBR - Trailer, 12Volt Right/Left Direction Indicator Circuit Warning - AN (4) - PR.
CBR 2246-5 032026
CBR - Z Spring Bracket Wear.
CBR 2514 022026
CBR - This procedure provides a temporary corrective action for the “Lost Communication to Alternator” message and Vehicle Master Control Unit (VMCU) DTC C103508 caused by a software issue.
S4757 022026
SC - Certain model AN(4)’s and PR’s could experience DEF leaks or crystallization due to the installation of incorrect fasteners for the Urea Dosage Valve.
CBR 2522-5 202601
CBR - Frequent Parked Regeneration Requests - Models PR (4), AN (4).
CBR 2443-3 202601
CBR - Trailer Tandem Adjustment Procedure - PR (4) - AN (4).
CBR 2496-9 202601
CBR - The purpose of this CBR is outline the interim software solution for PR(4) and AN(4).
CBR 2540-5 202601
CBR - Upper Bunk Restraint System – Plastic Gable Retention Field Fix.
CBR 2545-1 202601
CBR - U114688 VMCU Communication Fault - AN (4) - PR (4).
CBR 2502-2 202601
CBR - Mack Chassis - Battery Sensor Diagnostic and Calibration Procedure - PR (4) - AN (4).
CBR 2516-6 202601
CBR - CMS Black Screen Troubleshooting - PR (4) - AN (4).
SC S4742 202601
CBR MCO/VECI Label Reprint.
SC S4751 202601
CBR - Driver Environment Control Module Replacement.
CBR 2540 202512
Upper Bunk Restraint System – Plastic Gable Retention Field Fix
CBR 2542 202512
This document provides mandatory interim parameter settings to ensure proper vehicle operation.
CBR 2526 202512
The purpose of this CBR is to address driver complaint of parking heater inoperative.
CBR 199 202512
Vehicles affected by this issue will show coolant runoff on the front rights side of the engine.
CBR 2532-1 202511
CBR - Automatic High Beam PR(4) - AN(4).
CBR 2514-2 202511
CBR - Lost Communication to Alternator Message - DTC C103508.
CBR 2526-4 202511
CBR - Parking Heater Inoperative - PR(4) - AN (4).
CBR 2467-5 202511
CBR - Service Required Message PR(4), AN(4).
CBR 2516-3 102025
CBR - CMS Black Screen Troubleshooting.
CBR 2480-7
CBR - Resolution Process for Locked Control Unit(s)
CBR 2514-1 102025
CBR - Lost Communication to Alternator Message.
CBR 2503 092025
The purpose of this CBR is to outline the steps for adjusting brake pedal freeplay following Foot Brake Modulator (FBM) replacement or when diagnostic code C10C3-77is present.
CBR 2502 092025
This CBR solution provides guidelines for ensuring the correct position of battery sensor modules and battery sensor harnesses on the Mack PR (4) and AN (4) chassis, as well as the Battery Sensor Diagnostic and Calibration Procedure.
CBR 2497 092025
Electronic control units on the VN(4), PR (4) and AN (4) contain information that is critical for vehicle functionality, maintaining vehicle life data, and maintaining vehicle compliance. Because of this, swapping ECUs from truck to truck even for diagnostic purposes may cause functional or compliance complications that may or may not be apparent.
CBR 2172-5 082025
CBR - When an OTA (Over-The-Air) job starts to program the VECU blocks the starter relay out, if the job ends in a Critical failure, the vehicle will remain in Safe State.
Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.