Service bulletins for the 2020 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.
260 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
| K63879541 | 2019-05-20. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT:ELECTRICAL. Unable To Retrieve "On Request" Messages For PeopleNet Or Omnitracs Modules Installed On The DL5 Data Link; Third Party Electronic Log Device Not Reporting Certain Data |
|---|---|
| K73535038 | 2019-05-20. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS. Mack Chassis - Equipped With A Cummins 9 Liter Engine - Serpentine Belt Excessively Worn Or Damaged; Fan Belt Shredding Or Fraying Repeatedly |
| K52535491 | 2019-05-20. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE). Diagnostic / Troubleshooting Procedures For EGR System Components; Diagnostic Trouble Codes (DTC) P0401-00, P0402-00, P04DD-00, P1121-00, P1121-98 Or SPN 2659 FMI 16, SPN 2659 FMI 18, SPN 412 FMI 0, SPN 412 FMI 15 - US10, US10+OBD13, US14+OBD*, US17+OBD* With A Variable Geometry Turbocharger (VGT) |
| FSB563-008 | 2019-05-20. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. Plugs, Pressure Protection Manifold |
| SNM19-001 | 2019-04-22. Service bulletin. EQUIPMENT; VISIBILITY. Please be advised the optional Right Hand Side Down View Mirror will not be installed on vehicle models AN, PI, GR from the factory effective immediately. This is a result of a quality issue that has been discovered. |
| FSB563-008 | 2019-04-22. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Plugs, Pressure Protection Manifold |
| K91214678 | 2019-04-22. Service bulletin. EQUIPMENT; POWER TRAIN; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. Automated Manual Transmission (AMT) Faults - Diagnostic Trouble Codes (DTC) P1052-18 Or MID 130 PID 33 FMI 5 Intermittent Fault In Cold Weather - US07 And Newer Emissions, Model Year 2008 And Newer |
| K71313015 | 2019-02-19. Service bulletin. STRUCTURE:BODY:HOOD. Hood Insulation Separating From Hood, Insulation Installation Instructions |
| K15194127 | 2019-02-19. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. Mack Chassis - Fault Code SID 158 FMI 0 Logging In Instrument Cluster ( MID 140, IC ), No Code Description Or Diagnostic Information |
| K17039050 | 2019-02-19. 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 |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.