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2025 Mack Anthem (an) TSBs

66 Technical Service Bulletins across 13 categories

Engine

17 bulletins
11037730

Parker engine-mounted hydraulic pump service bulletin.

11036596

Mack Trucks has determined that certain AN model trucks equipped with an MP8 Turbo Compound (TC) engine may experience...

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TC Double Idler Gear failure due to incorrect bearing preload. TC units within this population are suspected to be affected, which could result in failure and potential engine damage. For the affected vehicle population, please follow the instructions provided below to remove the TC unit, replace the double idler gear with a new one, and reinstall the TC unit.

11036580

Mack Trucks Equipped With A Cummins Engine - Engine Preheat Icon Does Not Illuminate In The Instrument Cluster (IC)...

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During Engine Pre-heat (Intake Air Heater) Operation - Vehicles With 2018Instrument Cluster Update, Model Year2018 And Newer

11027007

Vehicles affected by this issue will show coolant runoff on the front rights side of the engine.

11026021

CBR - 13 Liter Engines ONLY - Engine Coolant Pump Housing Leak; Coolant Found Around The Oil Cooler Duct Cover Or In...

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Between The Coolant Pump Housing And Oil Cooler Housing.

11021336

SC - Mack Trucks has determined that certain AN model trucks equipped with an MP8 Turbo Compound (TC) engine may...

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experience TC Double Idler Gear failure due to incorrect bearing preload.

11018804

Inactive Code P25AE00 Being Generated After A Hard Pull And A Momentary Drop In Engine Oil Pressure (Low Oil Pressure)...

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(Possible Related Codes - SPN4811 , SPN 100 , PID 100)

11010857

Vehicles may present with oil leak coming from the clutch/flywheel housing and observation of burned clutch smell or clutch slipping.

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These symptoms can be mistaken as a crankshaft rear main seal leak, when the actual cause is the crankshaft adaptor O-ring.

11010820

CBR - 11L Engine block compatibility and Backward Conversion Parts Requirements

11010819

CBR - 13L Engine - Rear Main Oil Seal Leak Model Year 2025

11009706

CBR - 13L Engine - Rear Main Oil Seal Leak - Model Year 2025

11008377

CBR: Automated Manual Transmission (AMT) Model D or F (mDrive and I-Shift, AMT-D, AMT-F) - Transmission Oil Leakage From...

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Transmission Input Shaft Seal Or Output Shaft Seal - US10 And Newer Emissions, Common Model Years 2010 And Newer

11006925

CBR: 11L, 13L, And 16L Engine Oil Analysis Specifications - US10 And Newer Emissions

11000831

CBR: Vehicles built with an 11 liter engine may experience a complaint of excessive fuel in the oil.

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It is possible that the source of the fuel is the rear fuel galley plug in the cylinder head. A new and improved fuel galley plug has been developed to resolve this issue.

10253809

CBR: Turbo Compound 2nd Generation - EGR And / Or DPF Diagnostic Trouble Codes (DTC), Diagnostic And Repair Information.

10253807

CBR: Turbo Compound (TC) Hot Side Noise, Diagnostic Information.

10252308

CBR: Vehicles built with an 11 liter engine may experience a complaint of excessive fuel in the oil.

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It is possible that the source of the fuel is the rear fuel galley plug in the cylinder head.

Other

12 bulletins
11034135

The purpose of this CBR is to provide steps on how to correct a customer complaint of DTC P107B86 accompanied With...

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intermittent loss of throttle.

11032092

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

11032086

CBR - Mack Carrier Nut Adhesive Change.

11030582

CBR - Parker F3 Hydraulic Pump Troubleshooting.

11030579

CBR - No Start Condition After Over the Air Programing.

11029455

SC - Mack Trucks has determined that certain Mack sleeper cab assemblies were possibly manufactured with an insufficient...

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number of welds across the rear flange of the upper header

11021333

CBR - To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP file will need to downloaded.

11021332

CBR - A significant GPS reporting issue is affecting fleet operations, with trucks maintaining back-office communication...

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but failing to transmit GPS location data.

11018816

Mack Chassis - Rear Axle Overheat

11009707

CBR - One-Box SCR Weld Leaks.

11008366

CBR: To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP fi le will need to be downloaded.

11005410

CBR: Telematics Gateway (TGW) Connect Ability Issues

Body & Paint

6 bulletins
11032094

CBR - Mack Chassis - Dash Panel Cracking at Mounting to BIW.

11028041

CBR - Mack Chassis - AN And GR Models - Door Glass Shattering.

11018811

Remote Control Central Door Lock, Programming; Key Fob Cannot Be Programmed Or Does Not Work After Programming - Model...

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Year 2018 And Newer

11013548

This CBR solution provides detailed instructions for diagnosing and addressing window glass shattering issues, including...

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replacement specifications, interference checks, fastener verification, and reinforcement tab adjustments to ensure proper installation and functionality.

11005412

CBR: Mack Chassis - Day Cab Glass Breakage

11003043

CBR - Mack Chassis - Day Cab Glass Breakage

Electrical

6 bulletins
11029453

SC - Mack Trucks has determined that a select group of trucks were built with an AHI Module fuel pressure sensor which...

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does not meet our specifications.

11026025

CBR - Mack Temperature Sensor Troubleshooting Guide

11022289

CBR - When an OTA (Over-The-Air) job starts to program the VECU blocks the starter relay out, if the job ends in a...

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Critical failure, the vehicle will remain in Safe State.

11018813

Mack DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions and Newer

11017735

SC - Mack Trucks has determined that certain Anthem and Granite model trucks have a mislabeled Electronic Fuse & Relay...

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Center (EFRC) Cover.

11014710

Mack Trucks has determined that a select group of trucks were built with an AHI Module fuel pressure sensor which does...

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not meet our specifications.

Fuel System

5 bulletins
11027018

SC - Electric Exhaust Heater Control Unit Update

11016347

Cummins Exhaust Aftertreatment System (EATS) catalysts may experience cracking, which may be attributed to excessive...

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vertical vibration in the exhaust stack. To mitigate this issue, a modification to the exhaust stack length is required.

11016342

If oil dilution is suspected refer to the applicable CBR solution below: CBR-659Mack Chassis - Oil Diluted With Fuel;...

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Fuel In Oil, Diagnostic Information - All Emissions, All Model Years

11014712

Mack Trucks has determined that certain Mack sleeper cab assemblies were possibly manufactured with an insufficient...

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number of welds across the rear flange of the upper header. The reduced number of welds could lower the designed cab integrity.

11006924

CBR: Overhead Wear Overview - Model Year2018 To Current (Common Rail Fuel System ONLY)

Transmission

5 bulletins
11016348

If the vehicle door is open and the truck is in neutral, a popup message may appear on the Driver Information Display...

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(DID) instructing the operator to shift into neutral. If this message appears while the vehicle is already in neutral, the Instrument Cluster (IC)requires a software update.

11009705

CBR - Mack Chassis - Timing Gear Plate Repair

11006923

CBR: Mack chassis with an mDRIVE transmission, there have been reports of complete shift assemblies and TECUs being...

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replaced due to technicians being unable to pinpoint the source of the air leak.

11000836

CBR: ZF/TRW Steering Gear Side Cover Leak

10253804

CBR: Equipped With An Automated Manual Transmission Model D or F ( AMT-D, AMT-F, mDrive) Missing X1 Value In VDA And...

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Default Settings Guidelines, ParameterP1AOB; Fault Code P1052-54, Error 40,Or Error 18 Encountered During Clutch Or Tran.

Pre-Delivery & Maintenance

4 bulletins
11024784

CBR - Wiper Linkage Inspection.

11008394

Service Campaign: Interaxle Driveline Torque

11005416

Service Campaign: Interaxle Driveline Torque

11003042

CBR - Accelerator Pedal: Inspection Instructions

Infotainment

4 bulletins
11008380

CBR: Drivers Information Display (DID) Inoperative/Goes Blank During Vehicle Operation

11005411

CBR: Drivers Information Display (DID)Inoperative After Cluster Replacement And Programming

11003037

CBR - Drivers Information Display (DID) Inoperative/Goes Blank During Vehicle Operation

11003035

CBR - Drivers Information Display (DID) Inoperative After Cluster Replacement And Programming

Suspension

2 bulletins
11030583

CBR - Z Spring Bracket Wear.

11012156

Frame lean can be caused by several seemingly isolated possibilities.

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The two most common are suspension and frame assembly issues.

Tires & Wheels

2 bulletins
11023452

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

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Note that this document is subject to updates and currently covers Service Pack updates to B2_T2_1.2.

11008382

CBR: Vehicles Equipped With A Lift Axle - Wheel Speed Fault Code SPN 793, SPN 794 Set When Axle Is Up

Air Bags & Safety

1 bulletin
11024786

SC - The vehicles seat belt tether may have been assembled with incorrect hardware.

Lighting

1 bulletin
11008368

CBR: The procedure to eliminate the Mack Chassis "Air Restriction Light On" seen in the cluster is to confirm that the...

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parameter YYT is set to "Enable" with Premium Tech Tool.

Brakes

1 bulletin
11005407

CBR: Mack Anthem (AN) And Pinnacle (PI) -Bendix ABS Fault SPN 807 FMI 13 Blink code 19-4