2027 Mack Pioneer PR (4) technical service bulletins
48 technical service bulletins and manufacturer communications cover the 2027 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.
- The purpose of this CBR is to provide steps on how to correct a customer complaint of "Service Required"...
- 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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