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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
K153254242018-05-29. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS; ELECTRICAL SYSTEM:SOFTWARE. Mack Chassis - Diagnostic Trouble Code ( DTC ) P026C Lighting The Malfunction Indicator Light ( MIL ) - US14+OBD13, US14+OBD15 And US14+OBD16 - Commonly Model Years 2015 To 2017 (Non-Common Rail Fuel System) Chassis
K389395292018-05-29. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; ELECTRICAL SYSTEM:SOFTWARE. Mack Chassis - Diagnostic Trouble Code ( DTC ) P05EB, Diagnostic And Repair Information - US14+OBD15 And US14+OBD16 (Commonly Model Years 2016 And 2017)
K035733292018-04-23. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. Diagnostic Trouble Codes ( DTC ) P2080, P2084, P242B Lighting The Malfunction Indicator Lamp ( MIL ) - US14+OBD13 And OBD15 Emissions (Commonly Model Years 2015 And 2016)
K244831572018-03-19. Service bulletin. ENGINE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Diagnostic Trouble Codes ( DTC ) P208E And P103B Logging With Possible Derate ( SCR Inducement ) - OBD15, US14+OBD16 Emissions And Newer Rewrote test procedure for better clarity.
FSB2840642018-03-12. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; ENGINE; ELECTRICAL SYSTEM:SOFTWARE. ECM and ACM Reprogramming, OBD2015
K430562542018-03-12. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. Mack Chassis - Aftertreatment Control Module ( ACM ) not visible in Premium Tech Tool ( PTT ).Added more checks and procedures
K954220632018-03-12. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ENGINE AND ENGINE COOLING:ENGINE:DIESEL; FUEL SYSTEM, DIESEL; ENGINE. Mack Chassis - Diagnostic Trouble Code ( DTC ) P2459 Lighting The Malfunction Indicator Lamp ( MIL ); Possible Frequent Regeneration Requests - OBD15 And Newer Chassis
K860946412018-03-12. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ENGINE. Mack Chassis - Diagnostic Trouble Code ( DTC ) P226C Intermittently Lighting The Malfunction Indicator Lamp ( MIL ) - OBD15 And OBD16 Conventional Chassis.Updated to reflect release of FSB284-064 (Above)
K459415122018-03-12. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. Mack Chassis - Diagnostic Trouble Code ( DTC ) P0128, Diagnostic And Repair - US14+OBD13 (Commonly Year Model 2015) And Newer.Updated to reflect release of FSB284-064 (Above)
FSB8730212018-03-12. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. HVAC Filter Blocked, Repair, LR
K110653982018-01-16. Service bulletin. ENGINE. Mack Trucks has received reports from the aftermarket regarding oil leaks at the CCV housing inlet tube and at the split line between the upper and lower housings on chassis builds between January 1, 2014 and January 26, 2016 with MP7, MP8, and MP10 engines. It has been determined that the O-ring installed on the inlet tube is the source of the leak and oil may leak down the back of the housing giving the impression that the housing split line is also leaking.
FSB 257-004A2016-10-27. Service bulletin. ENGINE AND ENGINE COOLING. MACK TRUCKS HAS RECEIVED REPORTS FROM THE AFTERMARKET REGARDING OIL LEAKS AT THE CCV HOUSING INLET TUBE AND AT THE SPLIT LINE BETWEEN THE UPPER AND LOWER HOUSINGS ON CHASSIS BUILDS BETWEEN JANUARY 1, 2014 AND JANUARY 26, 2016 WITH MP7 ENGINES. IT HAS BEEN DETERMINED THAT THE O-RING INSTALLED ON THE INLET TUBE IS THE SOURCE OF THE LEAK AND OIL MAY LEAK DOWN THE BACK OF THE HOUSING GIVING THE IMPRESSION THAT THE HOUSING SPLIT LINE IS ALSO LEAKING.
FSB 233-006A2016-10-27. Service bulletin. FUEL/PROPULSION SYSTEM; ENGINE. ENGINE FUEL FILTERS. 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.
PI 08662016-10-24. Service bulletin. ENGINE. ENGINE CONTROL MODULE (ECM), REPROGRAMMING.
FSB 386-0092016-10-20. Service bulletin. ENGINE AND ENGINE COOLING. COOLANT LEVEL SENSOR, REPLACEMENT. THE COOLANT LEVEL SENSOR (PART NUMBER 21257608) ON SOME MACK CABOVER TRUCKS BUILT BETWEEN 10/04/2008 AND 02/20/2015 MAY FAIL INTERNALLY. FAILURE OF THE SENSOR CAN CAUSE THE MALFUNCTION INDICATOR LIGHT (MIL) TO ILLUMINATE AND CAN CAUSE AN UNPLANNED STOP IN CASES WHERE THE ENGINE PARAMETER "ENGINE SHUTDOWN WITH LOW COOLANT" IS ENABLED.

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