2025 Mack Pioneer PR (4) technical service bulletins
161 technical service bulletins and manufacturer communications cover the 2025 Mack Pioneer PR (4).
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- This document provides guidance for addressing the APM DTC C10129B fault, "High/Excessive Flow"
- The purpose of this CBR is to address issues of Automatic High Beam functionality
- This document provides guidance for No-Crank/No-Start or Blank Instrument Cluster following shop...
- The purpose of this CBR is to provide steps on how to utilize the injector widget (within workshop...
- All Mack vehicles built with USA24, and forward emissions may experience damage to the diesel exhaust...
- Trucks equipped with large sleeper cab variants may experience vibration at speeds 62
- Power Cable Alternator Replacement
- Instrument Cluster Going Dark
- Diagnostic instructions for CAN network communication issues.
- The purpose of this CBR is outline the interim software solution for PR(4) and AN(4).
- Jumper Harness Repair for Version 4 Mack Trucks
- Loose CCV mounting bolts and oil leak at CCV due to cracking of the housing
- The purpose of this CBR is to provide support for complaints of trailer braking aggressively.
- This CBR solution outlines the procedures for diagnosing, replacing, calibrating, and programming Flexible...
- The purpose of this CBR is to provide steps on how to correct a customer complaint of a no crank/engine...
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- The purpose of this CBR is to provide steps on how to correct a customer complaint of instrument cluster...
- The purpose of this CBR it to provide release notes for the recent Engine ECU software.
- Contact Workshop; Communication Lost With Ultracapacitor Message With Associated CCIOM DTC U100687 And A...
- The purpose of this cbr is to provide steps on how to protect the alternator power cable connection from...
- The purpose of this CBR is to address issues of exhaust stack rotation on version 4 products.
- Infotainment Update for Missing Apps, Navigation, and Apple/Android CarPlay Issues
- The purpose of this CBR is to help diagnosis issues with the Proactive Engine Restart system and Hood Open...
- The purpose of this CBR is to provide aid in VMCU fault B1524-49 along with a Rain sensor which will not...
- CBR to diagnosis issues with the Proactive Engine Restart system and Hood Open message.
- Fault diagnostic information for Supplemental Restraint / Airbag Inflation System (SRS)
- CBR to provide steps on how to protect the alternator power cable connection from corrosion.
- Tire Pressure Monitoring System U101A / U101B Fault Solution
- CBR to address when you should update to 3.0 service pack software update.
- CBR to provide support for fault codes C106718 and/or C106818.
- Electronically controlled suspension (ECS) calibration procedure.
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- Upper Bunk Restraint System – Plastic Gable Retention Field Fix
- This document provides mandatory interim parameter settings to ensure proper vehicle operation.
- The purpose of this CBR is to address driver complaint of parking heater inoperative.
- The purpose of this CBR is to address reports of regeneration failure when ambient temperature is below 30F.
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- Particulate Filter Restriction
- Low Fuel Pressure
- Reductant Return: No Flow Detected
- Reductant Pressure Sensor
- Exhaust Gas Temperature Sensor Circuit Short to Battery or Open
- Engine Oil Over Temperature
- Reductant Injection Valve Control Bank 1 Unit 1
- Engine Coolant Over Temperature
- Engine Oil Pressure Too Low
- Engine Coolant Level Low
- Adaptive Cruise Control Issue
- Lighting DTC list
- Reverse cameras not properly assigned from the factory.
- The purpose of this CBR is to address the issue with Eco Roll disable switch notworking.
- The purpose of this CBR is to outline the steps for adjusting brake pedal freeplay following Foot Brake...
- This procedure describes the standardized method for repairing failed inserts pulled out of a table surface
- This CBR solution provides guidelines for ensuring the correct position of battery sensor modules and...
- The purpose of this CBR is outline the interim software solution for PR(4) andAN(4). Note that
- Electronic control units on the VN(4), PR (4) and AN (4) contain information that is critical for vehicle...
- This document provides guidance for addressing the APM DTC C10129B fault," High/Excessive Flow" This fault...
- Purpose of this CBR is to address Pop up message for PTO Malfunction when there is no PTO Installed.
- This CBR pertains to two issues that may arise with the Proactive Engine Restart (Remote Engine Start System).
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- The purpose of this CBR is to provide instructions when trying to retrieve DTC and a Communication Failed...
- Mack DEF Level (UQLS) Sensor Troubleshooting Guide
- The purpose of this CBR is to help diagnosis an electrically faulty door latch.
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- If the vehicle door is open and the truck is in neutral, a popup message may appear on the Driver...
- If oil dilution is suspected refer to the applicable CBR solution below: ∙ CBR-659Mack Chassis
- Fuel/propulsion system
- Structure: body
- Frame lean can be caused by several seemingly isolated possibilities
- Vehicles may present with oil leak coming from the clutch/flywheel housing and observation of burned...
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- Service Campaign: Interaxle Driveline Torque
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- CBR: Drivers Information Display (DID) Inoperative/Goes Blank During Vehicle Operation
- CBR: Automated Manual Transmission (AMT) Model D or F (mDrive and I-Shift, AMT-D, AMT-F)
- CBR: To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP fi le will need to be downloaded.
- CBR: The procedure to eliminate the Mack Chassis "Air Restriction Light On" seen in the cluster is to...
- CBR: Vehicles Equipped With A Lift Axle
- CBR: Mack chassis with an mDRIVE transmission, there have been reports of complete shift assemblies and...
- CBR: Overhead Wear Overview
- Cbr: 11L, 13L
- CBR: Turbo Compound 2nd Generation
- CBR: Mack Chassis
- CBR: Drivers Information Display (DID)Inoperative After Cluster Replacement And Programming
- CBR: Mack Anthem (AN) And Pinnacle (PI) -Bendix ABS Fault SPN 807 FMI 13 Blink code 19-4
- CBR: Telematics Gateway (TGW) Connect Ability Issues
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- CBR: Equipped With An Automated Manual Transmission Model D or F ( AMT-D, AMT-F, mDrive) Missing X1 Value...
- CBR: Turbo Compound 2nd Generation
- Service Campaign: Steering Stub Shaft Hardware Replacement
- CBR: Turbo Compound (TC) Hot Side Noise, Diagnostic Information.
- CBR: Vehicles built with an 11 liter engine may experience a complaint of excessive fuel in the oil
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