2015 Mack Leu technical service bulletins

Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.

• Apr 9, 2026 Service bulletinCbr
• Apr 9, 2026 Service bulletinCbr
• Jan 8, 2026 Service bulletinCbr
• Nov 22, 2025 Service bulletinCbr
• Jul 28, 2025 Service bulletinCbr
• Jul 17, 2025 Service bulletinCbr
• May 28, 2025 Service bulletinInactive Code P25AE00 Being Generated After A Hard Pull And A Momentary Drop In Engine Oil Pressure (Low...
• Mar 6, 2025 Service bulletinIf oil dilution is suspected refer to the applicable CBR solution below: ∙ CBR-659􀁡Mack Chassis
• Nov 14, 2024 Service bulletinVehicles may present with oil leak coming from the clutch/flywheel housing and observation of burned...
• Sep 13, 2024 Service bulletinCBR: To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP fi le will need to be downloaded.
• Aug 13, 2024 Service bulletinCbr: 11L, 13L
• Jul 2, 2024 Service bulletinCBR: Telematics Gateway (TGW) Connect Ability Issues
• Jun 19, 2024 Service bulletinCbr
• May 2, 2024 Service bulletinCBR: Vehicles built with an 11 liter engine may experience a complaint of excessive fuel in the oil
• Apr 22, 2024 Service bulletinCBR: Equipped With An Automated Manual Transmission Model D or F ( AMT-D, AMT-F, mDrive) Missing X1 Value...
• Feb 21, 2024 Service bulletinCBR -Telematics Gateway (TGW) Connect Ability Issues
• Feb 16, 2024 Service bulletinCbr
• Feb 16, 2024 Service bulletinCbr
• Feb 16, 2024 Service bulletinCbr
• Jan 18, 2024 Service bulletinCbr: tgw
• Dec 1, 2023 Service bulletinUnknown or other
• Nov 7, 2023 Service bulletinMack Trucks now offer an improved HD Inter-Axle Through Shaft for the CRD 125, 150, 180, and 200 family...
• Sep 5, 2023 Service bulletinAftertreatment Diesel Exhaust Fluid (DEF) Tank, Level Sensor, Replacement
• Aug 14, 2023 Service bulletinBarksdale Leveling Valve, Leak Test
• Jul 24, 2023 Service bulletinCBR: Programming Failure
• Jul 1, 2023 Service bulletinCBR: Mack DEF Dosing Valve Diagnostic Trouble Codes (DTC) P202D00, P208E00, P103B00
• May 31, 2023 Service bulletinService Literature Published and Released in May, 2023
• May 17, 2023 Service bulletinCBR: Automated Manual Transmission ( AMT ) -Transmission Electronic Control Unit ( TECU ) MID130 PSID 29...
• May 10, 2023 Service bulletinCBR: Automated Manual Transmission (AMT) Transmission Kickdown Mode
• May 2, 2023 Service bulletinCBR: Diagnostic Trouble Code (DTC) P215A-64, Fault Code SPN 84 FMI 19
• Apr 18, 2023 Service bulletinNew Vehicle Safety Certification Requirements for Vehicles, U.S. and Canada
• Apr 18, 2023 Service bulletinStock Vehicle Storage and Maintenance
• Apr 18, 2023 Service bulletinVibration Diagnostics
• Feb 28, 2023 Service bulletinMack MMD Alternator Pulley
• Feb 21, 2023 Service bulletinFlywheel Housing Thread Repair
• Feb 10, 2023 Service bulletinMack DEF Pump Troubleshooting Guide
• Sep 22, 2022 Service bulletinTSB-Charge Air Cooler t-clamp install.
• Sep 22, 2022 Service bulletin2008 Document reformatted to be published as a TSB in Impact
• Sep 21, 2022 Service bulletin2008 Document reformatted to be published as a TSB in Impact
• Sep 15, 2022 Service bulletin2008 Document reformated to be published as a TSB in Impact
• Sep 15, 2022 Service bulletin2008 Document reformatted to be published as a TSB in Impact
• Sep 15, 2022 Service bulletin2008 Document reformatted to be published as a TSB in Impact
• Sep 15, 2022 Service bulletin2008 Document reformatted to be published as a TSB in Impact
• Sep 15, 2022 Service bulletin2008 Document reformatted to be published as a TSB in Impact
• Sep 15, 2022 Service bulletin2008 Document reformatted to be published as a TSB in Impact
• Aug 19, 2022 Service bulletin2009 Document reformatted to be published as a TSB in Impact
• Aug 6, 2022 Service bulletin2009 Document reformated to be published as a TSB in Impact
• Aug 6, 2022 Service bulletin2009 Document reformatted to be published as a TSB in Impact
• Jun 28, 2022 Service bulletinVehicles Equipped With An Automated Manual Transmission Model D or F ( AMT-D, AMT-F )
• Jun 28, 2022 Service bulletinUS10 Emission Engines
• Jun 22, 2022 Service bulletinAutomated Manual Transmission ( AMT ) I-Shift / mDRIVE
• Jun 21, 2022 Service bulletinWarranty Automated Manual Transmission ( AMT, I-Shift, mDrive ) Control Housing Assembly; Guidelines For...
• Jun 21, 2022 Service bulletin(Back Office)
• Jun 21, 2022 Service bulletinProgramming Failure
• Jun 6, 2022 Service bulletinPremium Tech Tool (PTT)
• Jun 3, 2022 Service bulletinDEF Pump Troubleshooting Guide
• Jun 3, 2022 Service bulletinSelective Catalytic Reduction (SCR) Muffler Troubleshooting Guide
• Jun 3, 2022 Service bulletinNOx Sensor Troubleshooting Guide
• May 27, 2022 Service bulletinMack Chassis
• May 26, 2022 Service bulletinNOx Sensor Troubleshooting Guide
• May 26, 2022 Service bulletinUse for new vehicles (US21+OBD22
• May 26, 2022 Service bulletinSelective Catalytic Reduction (SCR) Muffler Troubleshooting Guide
• May 26, 2022 Service bulletinDEF Pump Troubleshooting Guide
• May 26, 2022 Service bulletinTemperature Sensor Troubleshooting Guide
• May 25, 2022 Service bulletinMack Chassis
• May 24, 2022 Service bulletinMack Chassis
• May 24, 2022 Service bulletinMack Chassis
• May 24, 2022 Service bulletinMack Chassis Model LEU613 " Cab Right Hand Drive Only " And " Allison Transmission Only " Low Air Alarm &...
• May 20, 2022 Service bulletin(Back Office Only) Mack Chassis
• May 18, 2022 Service bulletinEmcon (Spark Assist) Engine Aftertreatment System Troubleshooting Check Sheet
• May 17, 2022 Service bulletinMack Low Oil Pressure Diagnostic Process For 11 Liter Engines
• May 17, 2022 Service bulletinMack Dealer Support Communication
• May 17, 2022 Service bulletinMack
• May 17, 2022 Service bulletinManual Compression Test Adapter For Engines With Stainless Steel Injector Sleeves (Conical Tip Injectors)
• May 16, 2022 Service bulletinMack SNM15-007 Vocom Adapter ( 88890300 ) May Lock Up When Updating Firmware
• May 16, 2022 Service bulletinLow Voltage Disconnect (LVD), Function Description
• May 16, 2022 Service bulletinElectronically Controlled Suspension (ECS) Losing Air Pressure
• May 16, 2022 Service bulletinNo Start Condition After Over The Air Programing
• May 13, 2022 Service bulletinMack Chassis
• May 13, 2022 Service bulletinDEF Pump Cycling periodically Hours After Key Off
• May 9, 2022 Service bulletinMack Chassis
• May 9, 2022 Service bulletinPremium Tech Tool ( PTT ) Training Materials And Support Tools
• May 5, 2022 Service bulletinMack Chassis
• Mar 24, 2022 Service bulletinMack Chassis
• Mar 23, 2022 Service bulletinRadio, Replacement (revised from FSB 392-004)
• Mar 18, 2022 Service bulletinMack Chassis
• Mar 18, 2022 Service bulletinMack Chassis
• Mar 18, 2022 Service bulletinMack Chassis
• Mar 16, 2022 Service bulletinVolvo Chassis
• Feb 22, 2022 Service bulletinAftertreatment Control Module ( ACM ) Diagnostic Trouble Codes ( DTC ) U0001-88 and U0010-88 Lighting The...
• Feb 22, 2022 Service bulletinEngine Oil Analysis Specifications
• Feb 16, 2022 Service bulletinDiagnostic Trouble Code (DTC) P04DB
• Feb 16, 2022 Service bulletinIntake Pre-heater Electrical Schematics (Diagrams)
• Feb 10, 2022 Service bulletinAftertreatment Hydrocarbon Injector (AHI) Troubleshooting Guide
• Jan 26, 2022 Service bulletinVariable Geometry Turbocharger ( VGT ) Function Test ( 2551-08-03-02 ), OBD13 Model Year ( MY ) 2014 And Newer
• Jan 21, 2022 Service bulletinDiagnostic Trouble Codes ( DTC ) P20EE, P207F And P103C, Diagnostic Procedure
• Jan 20, 2022 Service bulletinDiagnostic Trouble Code ( DTC ) P26E8 Intermittently Lighting The Malfunction Indicator Lamp ( MIL );...
• Jan 20, 2022 Service bulletinMack Chassis
• Jan 19, 2022 Service bulletinVolvo Chassis
• Jan 17, 2022 Service bulletinMack Chassis
• Dec 21, 2021 Service bulletinMack Chassis
• Dec 14, 2021 Service bulletinMack Chassis
• Dec 14, 2021 Service bulletinMack Chassis
• Dec 1, 2021 Service bulletinExhaust Gas Temperature Sensor Circuit Range/Performance
• Nov 24, 2021 Service bulletinAutomated Manual Transmission (AMT) (Spigot Bearing) Input Shaft Repair Kit And Shim Kit, Part Number...
• Nov 22, 2021 Service bulletinMack Chassis
• Nov 18, 2021 Service bulletinMack Chassis
• Nov 5, 2021 Service bulletinPremium Tech Tool (PTT) Error Code 43: Service Regeneration Fails To Start; Service Regen Does Not...
• Nov 4, 2021 Service bulletinRevised How And When To Diagnose A US14 / US15 Emissions P2463 Diagnostic Trouble Code ( DTC )
• Nov 4, 2021 Service bulletinDiesel Fuel Information
• Oct 26, 2021 Service bulletinAftertreatment Control Module (ACM) Offline/Not Visible/Missing From Control Unit Information in Premium...
• Oct 22, 2021 Service bulletinAutomated Manual Transmission Gearbox Will Not Shift To High Range After Gearbox Repair; MID 130 PSID 24...
• Oct 20, 2021 Service bulletinAutomated Manual Transmission ( AMT ) ( I-Shift, mDRIVE ) Equipped Chassis, OBD13 And Newer
• Oct 11, 2021 Service bulletinLighting Control Module ( LCM ) Replacement
• Jun 15, 2021 Service bulletinDiagnostic Trouble Codes (DTC) For The Engine Pre-Heat Relay: Supplementary Instructions
• Mar 23, 2021 Service bulletinTransmission Oil Cooler Hose, Replacement
• Sep 9, 2020 Service bulletinMack Chassis " Air Restriction Light On " In The Cluster.
• May 20, 2020 Service bulletinDiagnostic Trouble Codes (DTC) For The Engine Pre-Heat Relay: Supplementary Instructions
• May 2, 2020 Service bulletinAir Pressure Switch, Replacement
• Feb 21, 2020 Service bulletinMack Chassis
• Dec 6, 2019 Service bulletinElectronic Control Unit (ECU) Replacement (EMS, VECU, TECU, LCM)
• Dec 4, 2019 Service bulletinAssembled Camshaft
• Nov 26, 2019 Service bulletinDiagnostic Trouble Code (DTC) P04DB
• Nov 26, 2019 Service bulletinMack Chassis
• Nov 25, 2019 Service bulletinMack Chassis
• Nov 18, 2019 Service bulletinMack Chassis
• Jul 2, 2019 Service bulletinUS07 / US10 D13
• Jun 18, 2019 Service bulletinMack Chassis
• Jun 13, 2019 Service bulletinExhaust Gas Recirculation (EGR) System
• Apr 17, 2019 Service bulletinDiagnostic / Troubleshooting Procedures For EGR System Components; Diagnostic Trouble Codes (DTC)...
• Apr 16, 2019 Service bulletinMack Chassis
• Apr 3, 2019 Service bulletinExpired
• Dec 20, 2018 Service bulletinBendix ACom®
• Dec 6, 2018 Service bulletinMack Chassis
• Dec 5, 2018 Service bulletinDiagnostic Trouble Codes (DTC) P0194-00
• Nov 26, 2018 Service bulletinMack Chassis
• Sep 25, 2018 Service bulletinTech Tip TT
• Sep 14, 2018 Service bulletinExpired
• Jul 3, 2018 Service bulletinDiagnostic Trouble Codes ( DTC ) P2080, P2084, P242B Lighting The Malfunction Indicator Lamp ( MIL )
• Jun 19, 2018 Service bulletinMack Chassis
• Jun 19, 2018 Service bulletinMack Chassis
• Jun 19, 2018 Service bulletinMack Chassis
• May 15, 2018 Service bulletinMack Chassis
• Apr 23, 2018 Service bulletinMack Chassis
• Apr 20, 2018 Service bulletinMack Chassis
• Apr 20, 2018 Service bulletinMack Chassis
• Apr 19, 2018 Service bulletinMack Chassis
• Apr 19, 2018 Service bulletinMack Chassis
• Apr 18, 2018 Service bulletinMack Chassis
• Apr 17, 2018 Service bulletinMack Chassis
• Apr 2, 2018 Service bulletinECM and ACM, Reprogramming, OBD2014
• Mar 15, 2018 Service bulletinTech Tip TT
• Mar 12, 2018 Service bulletinMack Chassis
• Mar 5, 2018 Service bulletinDiagnostic Trouble Code ( DTC ) P0422 Lighting The Malfunction Indicator Light (MIL )
• Feb 28, 2018 Service bulletinDiagnostic Trouble Code ( DTC ) P02FA Illuminating The Malfunction Indicator Lamp (MIL)
• Feb 27, 2018 Service bulletinDiagnostic Trouble Code ( DTC ) P0420 Illuminating The Malfunction Indicator Lamp (MIL)
• Feb 27, 2018 Service bulletinDiagnostic Trouble Code ( DTC ) P0471 Illuminating The Malfunction Indicator Lamp (MIL)
• Feb 27, 2018 Service bulletinParticulate Matter ( PM ) Sensor Diagnostic Trouble Codes ( DTC ) Illuminating The Malfunction Indicator...
• Feb 26, 2018 Service bulletinDiagnostic Trouble Code ( DTC ) P009E
• Feb 22, 2018 Service bulletinDiagnostic Trouble Codes ( DTC ) P208E And P103B Logging With Possible Derate ( SCR Inducement )
• Feb 20, 2018 Service bulletinFuel Injector Offset Learning Diagnostic Trouble Codes ( DTC ) / Fault Codes Logged In Engine Control...
• Jan 30, 2018 Service bulletinDiagnostic Trouble Code ( DTC ) P009E
• Jan 30, 2018 Service bulletinECM and ACM Reprogramming, OBD2015
• Jan 25, 2018 Service bulletinMack Chassis
• Jan 12, 2018 Service bulletinMack Chassis
• Jan 10, 2018 Service bulletinMack Chassis
• Jan 10, 2018 Service bulletinMack Chassis
• Jan 9, 2018 Service bulletinDiagnostic Trouble Code ( DTC ) P0422 Lighting The Malfunction Indicator Light ( MIL )
• Jan 4, 2018 Service bulletinMack Chassis
• Jan 2, 2018 Service bulletinExpired
• Dec 19, 2017 Service bulletinDiagnostic Trouble Codes ( DTC ) P208E And P103B Logging With Possible Derate (SCR Inducement )
• Dec 5, 2017 Service bulletinMack Trucks has received reports from the aftermarket regarding oil leaks at the CCV housing inlet tube...
• Nov 21, 2017 Service bulletinIssues with the Charge Air System may result in the presence of oil in the Charge Air Cooler ( CAC ) or...
• Nov 3, 2017 Service bulletinDuring extended periods of idling, engine speed may increase for a short time without any external command...
• Oct 31, 2017 Service bulletinOn some MACK CHU, CXU, GU, TD, LEU, LR, and MRU trucks built from 01/14/2013 and 01/20/2017, the V-Stay...
• Aug 28, 2017 Service bulletinEffective September 2016, a revised composite bevel gear compartment cover with steel threaded fill plug...
• Sep 7, 2016 Service bulletinMack trucks has received reports from the aftermarket regarding oil leaks at the ccv housing inlet tube...
• Jul 13, 2016 Service bulletinBuggy spring bracket, replacement, rear transmission support brackets are breaking on some mack leu and lr...
• Jun 28, 2016 Service bulletinCcv housing inlet tube, replacement
• May 25, 2016 Service bulletinInteraxle yoke retaining nut recall.
• May 9, 2016 Service bulletinDiagnostic trouble codes (DTCS), low oil pressure, cxu, gu, leu, mru.
• May 9, 2016 Service bulletinDiagnostic Trouble Codes (DTCs), Low Oil Pressure, CXU, GU, LEU, MRU
• Apr 27, 2016 Service bulletinMack trucks inc
• Mar 1, 2016 Service bulletinEngine fuel filters (part number 21380521) with week number date codes ?15_33? (August 10, 2015) through...
• Mar 1, 2016 Service bulletinOn MACK vehicles built between July 6, 2015 and January 15, 2016 equipped with a MACK CRD 150 carrier, the...
• Dec 14, 2015 Service bulletinV-stay rod cover, replacement
• Oct 8, 2015 Service bulletinV-stay rod cover, replacement
• Oct 8, 2015 Service bulletinV-Stay Rod Cover, Replacement
• Oct 1, 2015 Service bulletinSummary to be provided on a future date.
• Aug 28, 2015 Service bulletinRegeneration temperatures
• Aug 6, 2015 Service bulletinDiagnostic trouble codes (DTCS), low oil pressure
• Aug 1, 2015 Service bulletinMack truck: should reprogrammed engine ECU and aftertreatment control module (ACM) due to premium tech...
• Jul 1, 2015 Service bulletinMack truck: during extremely cold ambient temperatures, at start up, some trucks may experience throttle...
• Jun 5, 2015 Service bulletinMP7 345R throttle delay at cold start, certain mack MP7 345R engines built between february 7, 2014 and...
• May 28, 2015 Service bulletinHigh soot output. on cold start up in ambient temperatures of -4°C (25°F) or less, mack engines may...
• May 11, 2015 Service bulletinCoolant level sensor, replacement
• May 11, 2015 Service bulletinHeater blower motor relay, replacement
• Apr 23, 2015 Service bulletinEngine harness changes
• Apr 1, 2015 Service bulletinMack trucks 2015 model years: bulletin information regarding new engine harness changes MP7, MP8,US2014...
• Apr 1, 2015 Service bulletinOBD2013 software updates
• Feb 18, 2015 Service bulletinControl module software updates
• Feb 8, 2015 Service bulletinControl Module Software Updates
• Jan 14, 2015 Service bulletinControl module software updates
• Dec 4, 2014 Service bulletinAnti-lock brake system (ABS) sensor connector, replacement
• Nov 17, 2014 Service bulletinOBD2013 software updates
• Sep 15, 2014 Service bulletinControl module software updates
• Mar 25, 2014 Service bulletinInterference between the brake lining and the spring cap was discovered on some mack chu, cxu, gu, td,...
• Feb 17, 2014 Service bulletinOn certain mack cng (compressed natural gas) mru/leu models, built between 11/10/13 and 2/14/14, may have...