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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
K010296372019-02-19. Service bulletin. FUEL SYSTEM, GASOLINE. Diagnostic Trouble Codes (DTC) P0087 Fuel Rail/System Pressure To Low, P016F Closed Loop Fuel Pressure Control At Limit - Pressure Too Low, P228F Fuel Pressure Regulator Exceeded Learning Limits - Too High; Damaged Lip Seal On Secondary Fuel Filter; Possible Uneven Operation - US17+OBD16 And Newer Emissions (Common Rail Fuel System), Model Year 2018 And Newer
K170390502019-02-19. Service bulletin. ELECTRICAL SYSTEM. Bendix ACom® - EC80 ESP Controller; ABS And ATC Lights Illuminated, Fault Codes Present After Making Changes, Calibration Or Programming With Acom
K146374122018-12-17. Service bulletin. FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. Diagnostic Trouble Codes (DTC) P0194-00 - Fuel Rail Pressure Sensor, Circuit Erratic, Intermittent And/Or P016E-00 Closed Loop Fuel Pressure At Control Limit, Pressure Too High - US17+OBD16 (Common Rail Fuel System) Emissions And Newer; Model Year 2017 And Newer
K233150312018-12-17. Service bulletin. FUEL SYSTEM, GASOLINE. Fuel Tank Strap Insulator Design Update; Fuel Tank Strap Appearance Changed
K938233002018-12-17. Service bulletin. POWER TRAIN; ENGINE. Mack Chassis - Pinnacle (CHU,CXU,PI), Anthem (AN), Granite (GU,GR) With Mack Engine ONLY - Power Take Off ( PTO ) Engine Speed Control Inoperative; Engine Speed Does Not Ramp When PTO Is Activated - Model Year 2007 And Newer
FSB728-0052018-12-17. Service bulletin. ENGINE. Leveling Valve, Leak Test
K252291682018-12-17. 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
K044040422018-12-17. Service bulletin. ENGINE. Fault Code SPN 1081 FMI 31 - Engine Wait to Start Lamp, Condition Exists - Model Year 2018
K100751122018-11-19. Service bulletin. LATCHES/LOCKS/LINKAGES:DOORS:LATCH; EQUIPMENT. Remote Control Central Door Lock, Programming; Key Fob Cannot Be Programmed Or Does Not Work After Programming - Model Year 2018 And Newer
K335936042018-11-19. Service bulletin. ELECTRICAL SYSTEM:WIRING; ENGINE. Diagnostic Trouble Codes (DTC) P0069-64, P10EC-00, P0191-00 and P240F-00 In Different Combinations, Occurrences, And Time Stamps (Two To Four Codes), Possible Vehicle Derate - US17+OBD16, US17+OBD18 Emissions, Common Model Years 2018 And 2019
K050234522018-11-19. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. Mack Chassis - Left Hand Drive ( LHD ) - No Airflow From Defrost And Floor Vents - Model Year 2018 And Newer
K210752532018-10-15. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION. 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
K911211662018-10-15. Service bulletin. ENGINE; POWER TRAIN:MANUAL TRANSMISSION. Mack Chassis - Automated Manual Transmission Model F (AMT-F, mDrive) - Possible Infrequent Hiccup/Stumble During Steady Engine/Vehicle Speed; Diagnostic Trouble Code P1074-92 Logging, Appears As Inactive - Common Model Years 2018 And 2019
K595542552018-10-15. Service bulletin. ENGINE. 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 Visit
K934821412018-10-15. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; VEHICLE SPEED CONTROL. Vehicle Overspeed Warning Comes Active At A Lower Speed Than Expected; Vehicle Overspeed Warning In Driver Information Display (DID) - Model Year 2018 And Newer With New Style Instrument Cluster
K122469712018-10-15. Service bulletin. SUSPENSION; POWER TRAIN; STRUCTURE. Grounding Bus Bar On Frame Rail Stud; Inspection To Be Performed For Power And Ground, Data Link DTCs - US13 And Newer Emissions, Common Model Year 2018 And Newer
K490533222018-10-15. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. Vehicle Speed Factor (K-Factor) Programming - Speed Factor Value Incorrect When Calculated In Premium Tech Tool (PTT); Speedometer Reading Incorrectly Following A Change To Vehicle Speed Factor - US17+OBD16 And Newer Emissions, Common Model Year 2018 And Newer
K769925572018-10-15. Service bulletin. FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL; FUEL SYSTEM, GASOLINE. Aftertreatment Hydrocarbon Injector (AHI, 7th Injector) Changes Between US10 And US17 (GHG17, Common Rail Fuel System) - Chassis Experiencing High soot Accumulation, Abnormal ( Too High, Overtemp, Too Low ) Regeneration Temperatures Following An Aftertreatment Hydrocarbon Injector Nozzle Replacement Procedure
K142355172018-09-10. Service bulletin. ENGINE AND ENGINE COOLING. Common Rail Fuel System - Engine Wiring Harness Will Not Reach / Is Not Long Enough To Connect To Electronic Pressure Relief Valve (EPRV) Connector, Wiring Harness Pulled Tight At EPRV; Correct Clocking, Symptoms, Repair - US17+OBD16 And Newer Emissions, Common Model Years 2018 And Newer
K455731622018-09-10. Service bulletin. ENGINE AND ENGINE COOLING. Variable Geometry Turbo (VGT) Calibration: Premium Tech Tool (PTT) Displays "Motor Disabled" Message, Operation Will Not Run, Will Not Complete When Running Operation; Poor Performance Following Calibration - US10 And Newer Emissions, Common Model Years 2014 And Newer
K420650422018-08-20. Service bulletin. ELECTRICAL SYSTEM. Engine Preheat Icon Does Not Illuminate In The Instrument Cluster (IC) During Engine Pre-heat (Intake Air Heater) Operation - Post-Facelift Vehicles, Model Year 2018 And Newer
K903584132018-08-20. Service bulletin. ENGINE AND ENGINE COOLING. Common Rail Fuel System - Diagnostic Trouble Code ( DTC ) P0094-00 Fuel System Leak Detected, Small Leak, Diagnostic Information - US17+OBD16 And US17+OBD18 Emissions, Common Model Years 2018 And 2019
K005851052018-08-20. Service bulletin. ENGINE AND ENGINE COOLING. Diagnostic Trouble Code (DTC) P0087-00 Illuminating The Malfunction Indicator Lamp (MIL) Or Stop Engine Light; Possible Engine Power/Torque Derate - US17+OBD16 And US17+OBD18 Emissions, Common Model Years 2018 And 2019
PI08842018-08-20. Service bulletin. ELECTRICAL SYSTEM. ECM Reprogramming Cummins ISL, GR
FSB221-0122018-08-20. Service bulletin. ENGINE. Oil Fill Adapter, Replacement

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