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Service bulletins for the 2019 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.

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

By type

By component

By trouble code

Bulletins, newest first
KC-1992022-01-06. Service bulletin. ENGINE AND ENGINE COOLING. 13 Liter Engines ONLY - Engine Coolant Pump Housing Leak; Coolant Found Around The Oil Cooler Duct Cover Or In Between The Coolant Pump Housing And Oil Cooler Housing - Model Years 2019 And 2020
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-1682021-12-07. Service bulletin. FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING. Mack Chassis - Diagnostic Trouble Code ( DTC ) P0420 Illuminating The Malfunction Indicator Lamp (MIL) - US17+OBD16 And US17+OBD18 (GHG17) Emissions (Common Rail Fuel System) - Commonly Model Years 2018 And 2019
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-1572021-12-07. Service bulletin. FUEL SYSTEM, DIESEL. Mack Chassis - Diagnostic Trouble Code ( DTC ) P009E-73 - Fuel Pressure Relief Control Performance / Stuck Off - US17+OBD16 And US17+OBD18 ( GHG17 ) Emissions (With Common Rail Fuel System), Commonly Model Years 2018 And 2019
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-1262021-11-05. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE. Engine Control Module (EMS) Software (MSW) Information - November 2019; Improvement List (Change Log) And Explanations For Issues And Diagnostic Trouble Codes (DTC, Fault Codes) US17+OBD2016 And US17+OBD18 Emissions, Model Years 2018 And 2019
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
FSB 211-003_M2021-11-05. Service bulletin. ENGINE AND ENGINE COOLING. Valve Cover Oil Leak at T Joint
S75742021-08-03. Service bulletin. ELECTRICAL SYSTEM. TECU SOFTWARE UPDATE
KC-702021-08-02. Service bulletin. STRUCTURE. Mack Chassis - Model GR/GU - Hood Warpage
CBR-152021-07-06. Service bulletin. ENGINE AND ENGINE COOLING. Diagnostic Trouble Codes (DTC) For The Engine Pre-Heat Relay: Supplementary Instructions
KC-3452021-07-02. Service bulletin. STEERING. Mack Chassis - Models GU / GR - Constant Correction To Center
S7567 v22021-06-07. Service bulletin. FUEL SYSTEM, GASOLINE. RD: EPRV Delete & Fuel Rail Pressure Sensor Update
SC04222021-04-06. Service bulletin. ELECTRICAL SYSTEM; EXTERIOR LIGHTING; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Canada Non-Compliance DRL overide
FSB 491-0322021-04-05. Service bulletin. EQUIPMENT; POWER TRAIN. Transmission Oil Cooler Hose, Replacement
FSB 258-0412021-04-05. Service bulletin. FUEL SYSTEM, DIESEL; ENGINE. Diesel Exhaust Fluid (DEF) Crystallisation, Dosing valve, Clean
S75672021-04-05. Service bulletin. FUEL SYSTEM, DIESEL. RD: EPRV Delete & Fuel Rail Pressure Sensor Update

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