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Service bulletins for the 2021 Mack Anthem

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

227 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Bulletins, newest first
KC-6982022-06-07. Service bulletin. ENGINE AND ENGINE COOLING. Mack Chassis - Diesel Exhaust Fluid ( DEF ) System Cleaning/Flush After DEF Pump Failure Or System Contamination
KC-6992022-06-07. Service bulletin. ELECTRICAL SYSTEM. Mack Chassis - Bendix Vendor Configuration Program ( VCP ) Software Download Information
KC-7002022-06-07. Service bulletin. POWER TRAIN. Mack Chassis - Automated Manual Transmission Model F ( AMT-F, mDrive ) - Short Transmission Replacement; Calibration And/Or Shifting Problems Following Replacement Of A Short Transmission - US17+OBD2016 And Newer Emissions, Model Year 2018 And Newer
KC-7142022-06-07. Service bulletin. ENGINE AND ENGINE COOLING. Mack Chassis - Diagnostic Trouble Codes ( DTC's ) - P020113, P020213, P020313, P020413, P020513, P020613, Cylinders 1 Through 6 Injector A Open Circuit
KC-7312022-06-07. Service bulletin. POWER TRAIN. Mack Chassis - Equipped With An Automated Manual Transmission Model D or F (mDrive, AMT-D, AMT-F) - Transmission Oil Leakage From Transmission Input Shaft Seal Or Output Shaft Seal - US10 And Newer Emissions, Common Model Years 2010 And Newer
KC-5872022-06-07. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE. Mack Chassis - SNM15-027 A/C Compressor Inspection Required For Warranty Repairs
SLM22-0042022-05-06. Service bulletin. SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; EQUIPMENT; STEERING. Service Literature Published and Released in April, 2022
KC-6042022-05-06. Service bulletin. ELECTRICAL SYSTEM. Mack Chassis - Accessory / Auxiliary Connection Points ( Power/Ground Points ) - Anthem, Pinnacle, Granite - Model Year 2018 And Newer
S76302022-05-05. Service bulletin. WHEELS; POWER TRAIN:AXLE HUBS. Proprietary Steerable Axle Hubcap Replacement
KC-3652022-04-06. Service bulletin. EQUIPMENT; SUSPENSION; EQUIPMENT:MECHANICAL:INTEGRATED JACK/LEVELER/STABILIZER. Mack Chassis - Technical Service Bulletin M-728-005, Leveling Valve, Leak Test, Air Leaks From The Leveling Valve After The Vehicle Is Parked (Shut Off)
KC-20612022-04-05. Service bulletin. ELECTRICAL SYSTEM; SERVICE BRAKES, AIR. Mack Chassis - Anthem (AN) And Pinnacle (PI) - ABS Modulator Wiring Rubbing Front Shock
KC-21072022-03-03. Service bulletin. ENGINE AND ENGINE COOLING. DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions and Newer
KC-5612022-03-03. Service bulletin. ENGINE AND ENGINE COOLING. Engine Oil Analysis Specifications - US10 And Newer Emissions
KC-5522022-03-03. Service bulletin. ENGINE AND ENGINE COOLING. Aftertreatment Control Module ( ACM ) Diagnostic Trouble Codes ( DTC ) U0001-88 and U0010-88 Lighting The Malfunction Indicator Lamp ( MIL ); Possible Derate Warning – US10 And Newer Chassis
KC-21072022-03-03. Service bulletin. UNKNOWN OR OTHER; ENGINE AND ENGINE COOLING. DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions and Newer
SNM22-0012022-02-06. Service bulletin. ENGINE AND ENGINE COOLING. TC Engine Turbochargers
S75672022-02-06. Service bulletin. FUEL SYSTEM, DIESEL. EPRV Delete & Fuel Rail Pressure Sensor Update
FSB 821-0272022-02-06. Service bulletin. LATCHES/LOCKS/LINKAGES. Hood Latch Assembly, Retrofit
KC-4782022-02-06. Service bulletin. ENGINE AND ENGINE COOLING. Variable Geometry Turbocharger ( VGT ) Function Test ( 2551-08-03-02 ), OBD13 Model Year ( MY ) 2014 And Newer
KC-4262022-02-04. Service bulletin. EQUIPMENT; STRUCTURE:BODY:HOOD; VISIBILITY. Mack Chassis - Anthem (AN) - Hood Mounted Mirror Repair; Mirror Covers Loose, Rattling, Vibrating
KC-4152022-02-04. Service bulletin. ENGINE AND ENGINE COOLING. Diagnostic Trouble Code ( DTC ) P26E8 Intermittently Lighting The Malfunction Indicator Lamp ( MIL ); Possible Derate Warning - US10+OBD13 And Newer Emissions, Model Year 2014 And Newer
KC-4062022-02-04. Service bulletin. FUEL SYSTEM, DIESEL. Dye Test Procedure; Fuel System Leak Check - Common Rail Fuel System - US17+OBD16 And Newer Emissions, Common Model Year 2018 And Newer
KC-4012022-02-04. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. Diagnostic Trouble Codes (DTC) P24F600 Or P24F700 - US14+OBD15 Emissions And Newer, Model Year 2016 And Newer
KC-4062022-02-04. Service bulletin. EQUIPMENT; FUEL SYSTEM, DIESEL. Dye Test Procedure; Fuel System Leak Check - Common Rail Fuel System - US17+OBD16 And Newer Emissions, Common Model Year 2018 And Newer
KC-4022022-02-04. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; ELECTRICAL SYSTEM. Volvo Chassis - Diagnostic Trouble Code (DTC) SA 0 FMI 0 or SPN 0 FMI 0 Present On Fault Code Readout - US10 And Newer Emissions, Model Year 2011 And Newer

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.