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Service bulletins for the 2022 Mack Granite

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.

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

By type

By component

By trouble code

Bulletins, newest first
KC-2212022-01-06. Service bulletin. LATCHES/LOCKS/LINKAGES. Mack Chassis - Granite 8 Series (GU, GU8, GR, M059, M753, M755) - Hood Guide Backing Plate - Updated Part Information And Installation Procedure;
KC-2152022-01-06. Service bulletin. POWER TRAIN; PARKING BRAKE. Mack Chassis - Granite (GR) Models Equipped With An Allison Transmission And Split Box PTO - "Release Parking Brake" Message Present In Instrument Cluster When Parking Brake Is Released - Model Year 2018 And Newer
KC-1932021-12-07. Service bulletin. ENGINE AND ENGINE COOLING. Mack Chassis - Particulate Matter (PM) Sensor Diagnostic Trouble Codes (DTC) Illuminating The Malfunction Indicator Lamp (MIL); Tech Tip TT-014-2016 - US14+OBD16, US17+OBD16 And Newer Emissions, Common Model Year 2017 And Newer - To Be Used For EVERY
KC-1672021-12-07. Service bulletin. ENGINE AND ENGINE COOLING. Premium Tech Tool (PTT) Error Code 43: Service Regeneration Fails To Start; Service Regen Does Not Complete With Error 43 Displayed - US10+OBD13 And Newer Emissions, Common Model Year 2014 And Newer
KC-1632021-12-07. Service bulletin. FUEL SYSTEM, DIESEL. Diesel Fuel Information - Acceptable Biodiesel, Fuel Blend For Summer And Winter - US07 And Newer Emissions, Model Year 2008 And Newer
KC-1592021-12-07. Service bulletin. ENGINE AND ENGINE COOLING. Trucks Equipped With A Cummins Engine - Engine Preheat Icon Does Not Illuminate In The Instrument Cluster (IC) During Engine Pre-heat (Intake Air Heater) Operation - Vehicles With 2018 Instrument Cluster Update, Model Year 2018 And Newer
KC-1452021-12-07. Service bulletin. POWER TRAIN. Automated Manual Transmission (AMT) (Spigot Bearing) Input Shaft Repair Kit And Shim Kit, Part Number Information, Reference Guide - US07 And Newer Emissions, Model Year 2008 And Newer
KC-1192021-12-07. Service bulletin. POWER TRAIN. Mack Chassis - Equipped With An Automated Manual Transmission (mDrive, AMT) AMT-C, AMT-D Or AMT-F - Transmission Oil Specifications - Model Years 2010 To 2020
KC-702021-12-07. Service bulletin. STRUCTURE:BODY:HOOD; STRUCTURE. Mack Chassis - Model GR/GU - Hood Warpage
KC-1362021-11-05. Service bulletin. ENGINE AND ENGINE COOLING. Aftertreatment Control Module (ACM) Offline/Not Visible/Missing From Control Unit Information in Premium Tech Tool (PTT) - US10+OBD13 And Newer Emissions
KC-1302021-11-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); FUEL SYSTEM, OTHER. Air In The Fuel System Tests, Common Rail Fuel System - US17+OBD16 and Newer Emissions
KC-1242021-11-05. Service bulletin. POWER TRAIN. Automated Manual Transmission Gearbox Will Not Shift To High Range After Gearbox Repair; MID 130 PSID 24 FMI 1, P1072-92 Unintentional Disengagement Of High Range - US07 And Newer Emissions, Model Year 2008 And Newer
KC-1152021-11-05. Service bulletin. POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:INTERNAL:GEARS. Automated Manual Transmission ( AMT ) ( I-Shift, mDRIVE ) Equipped Chassis, OBD13 And Newer - Light Turbo Surge ( Chuff ) During Skip Shifting
KC-82021-11-05. Service bulletin. STRUCTURE. (Back Office Only) Mack Chassis - Granite Models (GR) - Body Raised Out Of Position Message Not Dislaying In Driver Information Display - INT-GEN2
FSB 366-005_M2021-11-05. Service bulletin. FORWARD COLLISION AVOIDANCE; VISIBILITY. Forward Looking Radar Shortage
FSB 211-003_M2021-11-05. Service bulletin. ENGINE AND ENGINE COOLING. Valve Cover Oil Leak at T Joint
S76102021-11-05. Service bulletin. SERVICE BRAKES, AIR; SERVICE BRAKES, AIR:SLACK ADJUSTERS; SUSPENSION:SUBFRAME/MOUNTING BRACKET. Bump Stop Interference with Brake Slack
KC-3282021-10-01. Service bulletin. ELECTRICAL SYSTEM. Diagnostic Trouble Codes (DTC) P208064, P208464, P242B64 and P246F64 Lighting The Malfunction Indicator Lamp (MIL) - US17+OBD19 And Newer Emissions, Model Years 2020 and Newer
KC-21392021-09-02. Service bulletin. ENGINE AND ENGINE COOLING. 11 Liter Engines - Fuel In Oil - Vehicles Built Between October 2020 And June 2021
KC-702021-08-02. Service bulletin. STRUCTURE. Mack Chassis - Model GR/GU - Hood Warpage
S75762021-08-02. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. VECU Software Update
KC-3452021-07-02. Service bulletin. STEERING. Mack Chassis - Models GU / GR - Constant Correction To Center
SNM21-0052021-06-07. Service bulletin. WHEELS. 1-Piece Hub Covers
FSB 511-0102021-05-04. Service bulletin. SERVICE BRAKES, AIR. Disc Brake Rotor, Replacement
KC-702021-04-05. Service bulletin. STRUCTURE. Mack Chassis - Model GR/GU - Hood Warpage

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