2026 Mack Anthem (an) TSBs
28 Technical Service Bulletins across 9 categories
Categories
Other
8 bulletinsThe 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.
CBR - Mack Chassis - Through Shaft Bearing Retainer Breakage On Mack Carriers.
CBR - Mack Carrier Nut Adhesive Change.
CBR - Parker F3 Hydraulic Pump Troubleshooting.
CBR - No Start Condition After Over the Air Programing.
CBR - To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP file will need to downloaded.
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.
Mack Chassis - Rear Axle Overheat
Engine
5 bulletinsParker engine-mounted hydraulic pump service bulletin.
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
Vehicles affected by this issue will show coolant runoff on the front rights side of the engine.
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.
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)
Body & Paint
3 bulletinsCBR - Mack Chassis - AN And GR Models - Door Glass Shattering.
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
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.
Electrical
3 bulletinsCBR - Mack Temperature Sensor Troubleshooting Guide
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.
Mack DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions and Newer
Lighting
3 bulletinsMack Trucks has identified that certain truck models may have been assembled with incorrect center bearing mounting...
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hardware and could have been torqued incorrectly. Improper torque can increase the risk of hardware failure. To address this issue, please follow the instructions in this document to replace and correctly torque the center bearing and center bearing mounting bracket hardware.
SC - Mack Trucks has determined that certain AN models were assembled without a crossmember that was needed for the...
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pusher axle.
SC - Mack Trucks has identified that certain truck models may have been assembled with incorrectly torqued interaxle...
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prop shaft U-joint hardware.
Suspension
2 bulletinsCBR - Z Spring Bracket Wear.
Frame lean can be caused by several seemingly isolated possibilities.
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The two most common are suspension and frame assembly issues.
Fuel System
2 bulletinsCummins 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.
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
Pre-Delivery & Maintenance
1 bulletinCBR - Wiper Linkage Inspection.
Transmission
1 bulletinIf 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.