2027 Mack Pioneer PR (4) TSBs

Instrument Cluster Going Dark

Diagnostic instructions for CAN network communication issues.

The purpose of this CBR is to provide steps on how to utilize the injector widget (within workshop toolbox) to aid with...

CBR - The purpose of this CBR is to provide support for fault codes C106718 and/or C106818.

CBR - The purpose of this CBR is to provide guidance on fault code U114688.

The purpose of this CBR is to provide steps on how to correct a customer complaint of instrument cluster going dark...

Contact Workshop; Communication Lost With Ultracapacitor Message With Associated CCIOM DTC U100687 And A Startability...

CBR to provide support for fault codes C106718 and/or C106818.

CBR - Mack Chassis - Through Shaft Bearing Retainer Breakage On Mack Carriers.

CBR - Communication Lost With Ultracapacitor Message With Associated CCIOM DTC U100687 and a Startability Issue.

CBR - Mack Carrier Nut Adhesive Change.

CBR - Check Radar Pop Up Message.

CBR - No Start Condition After Over the Air Programing.

Jumper Harness Repair for Version 4 Mack Trucks

Power Cable Alternator Replacement

This CBR solution outlines the procedures for diagnosing, replacing, calibrating, and programming Flexible Switch Panels...

The purpose of this CBR is to provide aid in VMCU fault B1524-49 along with a Rain sensor which will not calibrate.

The purpose of this cbr is to provide steps on how to protect the alternator power cable connection from corrosion.

CBR to provide steps on how to protect the alternator power cable connection from corrosion.

Mack Chassis - Battery Sensor Diagnostic, Calibration, and Configuration Procedure

CBR - Manual TPMS Wheel Sensor Calibration.

CBR - Electric Pneumatic Module (EPM) Fault

CBR - Trailer, 12Volt Right/Left Direction Indicator Circuit Warning - AN (4) - PR.

Loose CCV mounting bolts and oil leak at CCV due to cracking of the housing.

The purpose of this CBR is to provide steps on how to correct a customer complaint of a no crank/engine start condition.

The purpose of this CBR it to provide release notes for the recent Engine ECU software.

The purpose of this CBR is to help diagnosis issues with the Proactive Engine Restart system and Hood Open popup...

CBR to diagnosis issues with the Proactive Engine Restart system and Hood Open message.

The purpose of this CBR is outline the interim software solution for PR(4) and AN(4).

The purpose of this CBR is outline the interim software solution for PR(4) and AN(4).

Tire Pressure Monitoring System U101A / U101B Fault Solution

The purpose of this CBR is to provide support for complaints of trailer braking aggressively.

CBR - Brake Pad Wear Indicator DTC C107E68.

Fault diagnostic information for Supplemental Restraint / Airbag Inflation System (SRS)

CBR - Upper Bunk Restraint System Plastic Gable Retention Field Fix.

CBR to address when you should update to 3.0 service pack software update.

CBR - Key Fob Calibration and/or Replacement.

The purpose of this CBR is to provide steps on how to correct a customer complaint of "Service Required" message for air...

The purpose of this CBR is to address issues of exhaust stack rotation on version 4 products.

Electronically controlled suspension (ECS) calibration procedure.

Infotainment Update for Missing Apps, Navigation, and Apple/Android CarPlay Issues

GDC - Transmission Oil Level Sensor