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Service bulletins for the 2016 Mack LR

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

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
FSB 468 0012021-08-09. Service bulletin. WHEELS; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; AIR BAGS; EQUIPMENT. On MACK vehicles built between July 6, 2015 and January 15, 2016 equipped with a MACK CRD 150 carrier, the mounting bolt hole on the driver side of the power divider housing which lines up with the fill plug is drilled through to the fill plug hole. This can create a path for a leak around the threads of the mounting bolt. The remaining five mounting bolt holes are blind. When a leak is found in this area, verify that all six mount bolts around the flange are tight. If any of the mounting bolts are found to be loose, the power divider lockout (PDLO) assembly must be removed and the gasket replaced. If all the bolts are tight, the bolt at the 3:00 position should be removed and cleaned along with the mounting hole with a residue free cleaning spray like contact cleaner.
FSB 233 006 Mack2021-08-09. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:FILTER/SCREEN; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. Engine fuel filters (part number 21380521) with week number date codes ?15_33? (August 10, 2015) through ?15_39? (September 27, 2015) should not be installed on an engine without first being inspected. The week number date code is marked on the outside of the filter, the number on top is the year and the number below identifies the week. Due to a manufacturing issue, fuel does not flow through the filter which results in a no-start/run condition immediately after installation.
CBR-152021-07-06. Service bulletin. ENGINE AND ENGINE COOLING. Diagnostic Trouble Codes (DTC) For The Engine Pre-Heat Relay: Supplementary Instructions
FSB 237-0212021-04-05. Service bulletin. ENGINE AND ENGINE COOLING; FUEL SYSTEM, DIESEL; EQUIPMENT; ELECTRICAL SYSTEM. Valve, Common Rail, Removal
K533380752020-06-03. Service bulletin. ENGINE AND ENGINE COOLING. Diagnostic Trouble Codes (DTC) For The Engine Pre-Heat Relay: Supplementary Instructions - US10+OBD13 And Newer Emissions, Model Year 2014 And Newer
K889928922020-01-13. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. Assembled Camshaft - Injector Lobe Rotation Inspection For Possible Spun Camshaft Lobe; Diagnostic Trouble Codes (DTC) P0257-00, P2A17-00, Or P2A1F-00, Possible Lack Of Power - US17+OBD16 and Newer Emissions
K238845372019-12-09. Service bulletin. ENGINE AND ENGINE COOLING. Diagnostic Trouble Code (DTC) P04DB - Crankcase Ventilation Disconnected; US10+OBD13 To US14+OBD16 Emissions (Non-Common Rail Fuel System), Common Model Years 2014 To 2017
K869000432019-07-15. Service bulletin. ENGINE AND ENGINE COOLING. Exhaust Gas Recirculation (EGR) System - Fault Codes SPN 412 FMI 0,2,5; Diagnostic Trouble Codes (DTC) P040A, P040B, P1121 - Temperature Sensor Inspection
K176967922019-02-19. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. Diagnostic Trouble Code (DTC) P24F6-00, Exhaust Aftertreatment Fuel Air Purge Valve Stuck Open Or DTC P24F7-00, Exhaust Aftertreatment Fuel Air Purge Valve Stuck Closed - US14+OBD15 Emissions And Newer, Model Year 2016 And Newer
K101361302018-08-20. Service bulletin. ENGINE. Diagnostic Trouble Codes ( DTC ) P2080, P2084, P242B Lighting The Malfunction Indicator Lamp ( MIL ) - US14+OBD13 And OBD15 Emissions (Commonly Model Years 2015 And 2016)
K459415122018-07-16. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM; ENGINE AND ENGINE COOLING. Mack Chassis - Diagnostic Trouble Code ( DTC ) P0128, Diagnostic And Repair - US14 +OBD15, Common Model Year 2016
K230562142018-07-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. Mack Chassis - Diagnostic Trouble Code ( DTC ) P205B Lighting The Malfunction Indicator Lamp ( MIL ) - US14+OBD15 Emissions, Common Model Year 2016 ONLY
K597524302018-07-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; FUEL SYSTEM, DIESEL. Mack Chassis - Diagnostic Trouble Code ( DTC ) P20CF, Diagnosis And Repair - US14+OBD15 Emissions, Common Model Year 2016
K273169442018-07-16. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. Mack Chassis - Diagnostic Trouble Code ( DTC ) P208A Lighting The Malfunction Indicator Lamp ( MIL ) - US14+OBD13 And US14+OBD15 Emissions, Common Model Years 2015 And 2016
K860946412018-07-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. Mack Chassis - Diagnostic Trouble Code ( DTC ) P226C Intermittently Lighting The Malfunction Indicator Lamp ( MIL ) - US14+OBD13, US14+OBD15 And US14+OBD16 Emissions , Common Model Years 2015 to 2017
K232588632018-07-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. Mack Chassis - Diagnostic Trouble Codes ( DTC ) P10FE And P24A4 Lighting The Malfunction Indicator Light ( MIL ) - US14+OBD13, US14+OBD15 And US14+OBD16 Emissions, Common Model Years 2015 To 2017
K954220632018-07-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. Mack Chassis - Diagnostic Trouble Code ( DTC ) P2459 Lighting The Malfunction Indicator Lamp ( MIL ); Possible Frequent Regeneration Requests - US14+OBD15 And US14+OBD16 Emissions, Common Model Years 2016 And 2017
K183046132018-07-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL. Mack Chassis - Diagnostic Trouble Code ( DTC ) P249C Intermittently Lighting The Malfunction Indicator Lamp ( MIL ) - US14+OBD15 And US14+OBD16 (Non-Common Rail Fuel System) Emissions, Common Model Years 2016 and 2017
K189012932018-07-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. Mack Chassis - Diagnostic Trouble Code ( DTC ) P226D Intermittently Lighting The Malfunction Indicator Lamp ( MIL ) - US14+OBD15 And US14+OBD16 Emissions (Non-Common Rail Fuel System), Commonly Model Years 2015 and 2016
K725110052018-07-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. Mack Chassis - Diagnostic Trouble Code ( DTC ) P0422 Lighting The Malfunction Indicator Light ( MIL ) - US14+OBD15 And US14+OBD16 Emissions, Common Model Years 2016 And 2017
K731208372018-07-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL. Mack Chassis - Diagnostic Trouble Code ( DTC ) P0507 Lighting The Malfunction Indicator Lamp ( MIL ) - US14+OBD13, US14+OBD15, US14+OBD16 Emissions (Non-Common Rail Fuel System), Common Model Years 2015 To 2017
FSB284-0642018-07-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE. ECM and ACM Reprogramming, OBD2015
K585577842018-06-18. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; EQUIPMENT. Fuel Injector Offset Learning Diagnostic Trouble Codes ( DTC ) / Fault Codes Logged In Engine Control Module ( EMS ); Possible Rough / Uneven Idle - US14+OBD15 Emissions (Commonly Model Year 2016)
K189012932018-06-18. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. Mack Chassis - Diagnostic Trouble Code ( DTC ) P226D Intermittently Lighting The Malfunction Indicator Lamp ( MIL ) - US14+OBD15 And US14+OBD16 Emissions (Non-Common Rail Fuel System), Commonly Model Years 2015 and 2016
K183046132018-06-18. Service bulletin. ENGINE; ELECTRICAL SYSTEM. Mack Chassis - Diagnostic Trouble Code ( DTC ) P249C Intermittently Lighting The Malfunction Indicator Lamp ( MIL ) - OBD15 And US14+OBD16 (Non-Common Rail Fuel System) Chassis

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