2023 MACK LR
2 recalls, 0 complaints - 49 TSBs
23V792000 Nov 22, 2023
VEHICLE SPEED CONTROL
Defect Description
Mack Trucks, Inc. (Mack) is recalling certain 2023-2024 GR, AN, LR, and Terrapro vehicles. The engine may not return to idle within 2 seconds if the accelerator pedal position sensor becomes disconnected. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety ... Read more
Consequence
An engine that does not return to idle quickly enough can cause a loss of vehicle control, increasing the risk of a crash.
Remedy
Mack will replace the throttle pedal and update the vehicle software, free of charge. Owner letters were mailed February 27, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0455.
23V465000 Jul 3, 2023
VISIBILITY:WINDSHIELD WIPER/WASHER:LINKAGES
Defect Description
Mack Trucks, Inc. (Mack) is recalling certain 2023-2024 LR garbage trucks. The wiper arm retention nuts may be loose, stripping, and causing the windshield wipers to fail.
Consequence
Inoperative windshield wipers can reduce visibility, increasing the risk of a crash.
Remedy
Dealers will inspect, tighten the retention nuts, and replace the windshield wiper arms as necessary, free of charge. Owner notification letters were mailed August 22, 2023. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0445.
No complaints found for this vehicle.
Technical Service Bulletins, 2023 MACK LR
49 manufacturer communications from 39 unique bulletins. TSBs describe known problems and recommended fixes from the manufacturer.
Most Affected Components
| Component | Bulletins |
|---|---|
| 060000 ENGINE AND ENGINE COOLING | 15 |
| 110000 ELECTRICAL SYSTEM | 11 |
| 100000 POWER TRAIN | 10 |
| 020000 SUSPENSION | 3 |
| 063100 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL | 1 |
| 080000 FUEL SYSTEM, DIESEL | 1 |
| 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL | 1 |
| 061600 ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM) | 1 |
CBR-1008 202404
Apr 22, 2024
100000 POWER TRAIN
CBR: Equipped With An Automated Manual Transmission Model D or F ( AMT-D, AMT-F, mDrive) Missing X1 Value In VDA And Default Settings Guidelines, ParameterP1AOB; Fault Code P1052-54, Error 40,Or Error 18 Encountered During Clutch Or Tran.
CBR-2258 202404
Apr 11, 2024
100000 POWER TRAIN
CBR: Diagnostic Trouble Code (DTC) P107471 -AMT-F
CBR-2013 202404
Apr 2, 2024
060000 ENGINE AND ENGINE COOLING
CBR: Turbo Compound (TC) Hot Side Noise, Diagnostic Information.
CBR-2139 202403
Mar 1, 2024
060000 ENGINE AND ENGINE COOLING
CBR: Vehicles built with an 11 liter engine may experience a complaint of excessive fuel in the oil. It is possible that the source of the fuel is the rear fuel galley plug in the cylinder head.
CBR-2258 202402
Feb 27, 2024
100000 POWER TRAIN
CBR - Diagnostic Trouble Code (DTC) P107471 - AMT-F
CBR-2350 202402
Feb 21, 2024
110000 ELECTRICAL SYSTEM
CBR -Telematics Gateway (TGW) Connect Ability Issues
CBR-2347 202402
Feb 16, 2024
110000 ELECTRICAL SYSTEM
CBR - Active "Set Park Brake" Message On Drivers Information Display (DID).
CBR-202 202402
Feb 16, 2024
100000 POWER TRAIN
CBR - Automated Manual Transmission ( AMT ) Flywheel Pilot Bearing Wear On Input Shaft.
CBR-2014 202402
Feb 16, 2024
020000 SUSPENSION
CBR - Driveline Noise, Suspension Ride Height Too High, Suspension Will Not Exhaust - Chassis Built 2016w01 And Newer.
CBR-2333 202401
Jan 18, 2024
110000 ELECTRICAL SYSTEM
CBR: TGW Will Not Connect After SIM Card Replacement
CBR-2320 202312
Dec 1, 2023
060000 ENGINE AND ENGINE COOLING
CBR: For vehicles equipped with an 11L engine, the plastic saddle bracket holding the a/c line on the left side of the engine may move excessively and rub the area where it secures the line.
M-465-001 202311
Nov 7, 2023
100000 POWER TRAIN
TSB: Mack Trucks now offer an improved HD Inter-Axle Through Shaft for the CRD 125, 150, 180, and 200 family carriers. The new HD shaft went into production on January 23rd, 2023 for 2.54 - 3.50 axle ratios and April 1st, 2023 for 3.56 - 3.
CBR-399 202310
Oct 19, 2023
110000 ELECTRICAL SYSTEM
CBR: 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
CBR-399 202310
Oct 19, 2023
117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
CBR: 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
M-258-014 202309
Sep 5, 2023
061200 ENGINE AND ENGINE COOLING:ENGINE:DIESEL
TSB: Aftertreatment Diesel Exhaust Fluid (DEF) Tank, Level Sensor, Replacement
M-258-014 202309
Sep 5, 2023
060000 ENGINE AND ENGINE COOLING
TSB: Aftertreatment Diesel Exhaust Fluid (DEF) Tank, Level Sensor, Replacement
CBR-2131 202308
Aug 14, 2023
110000 ELECTRICAL SYSTEM
CBR: Intermittent Diagnostic Trouble Codes U02A3,U029D, U029E - USE FOR NEW VEHICLES (US21+OBD22 Emissions)
CBR-2131 202308
Aug 14, 2023
060000 ENGINE AND ENGINE COOLING
CBR: Intermittent Diagnostic Trouble Codes U02A3,U029D, U029E - USE FOR NEW VEHICLES (US21+OBD22 Emissions)
M728-005A 202308
Aug 14, 2023
020000 SUSPENSION
TSB: Barksdale Leveling Valve, Leak Test
CBR-2112 202307
Jul 24, 2023
060000 ENGINE AND ENGINE COOLING
CBR: Programming Failure - Chassis With Cummins Engine And An Allison Transmission
CBR-2112 202307
Jul 24, 2023
100000 POWER TRAIN
CBR: Programming Failure - Chassis With Cummins Engine And An Allison Transmission
CBR-2112 202307
Jul 24, 2023
110000 ELECTRICAL SYSTEM
CBR: Programming Failure - Chassis With Cummins Engine And An Allison Transmission
CBR-2303 202307
Jul 1, 2023
060000 ENGINE AND ENGINE COOLING
CBR: Mack DEF Dosing Valve Diagnostic Trouble Codes (DTC) P202D00, P208E00, P103B00 - US10+OBD13 And Newer Emissions
CBR-2303 202307
Jul 1, 2023
063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CBR: Mack DEF Dosing Valve Diagnostic Trouble Codes (DTC) P202D00, P208E00, P103B00 - US10+OBD13 And Newer Emissions
KC-2289
Jun 27, 2023
060000 ENGINE AND ENGINE COOLING
Diagnostic Trouble Code (DTC) P103200: Particulate Matter Sensor Removed from Exhaust - US21+OBD22 Emissions
KC-2094 Rev 3
Jun 22, 2023
353600 EQUIPMENT:ELECTRICAL:INFOTAINMENT
Infotainment System - Volume Drop During A Phone Call, Phone Connected Via Bluetooth
KC-2094 Rev 3
Jun 22, 2023
110000 ELECTRICAL SYSTEM
Infotainment System - Volume Drop During A Phone Call, Phone Connected Via Bluetooth
S3236
Jun 16, 2023
060000 ENGINE AND ENGINE COOLING
Campaign - On certain Mack truck models built with a MP8 engines, there were some inconsistencies with the engine valve and injector adjustments.
KC-2116 Rev 9
Jun 16, 2023
060000 ENGINE AND ENGINE COOLING
Mack NOx Sensor Troubleshooting Guide - US10+OBD13 And Newer Emissions
KC-2292
Jun 13, 2023
020000 SUSPENSION
Vehicles Equipped With Chalmers Suspension - Frame Bracket Hardware Loose or Interfering
KC-2279
Jun 6, 2023
100000 POWER TRAIN
iLok Fastener Torque
KC-2043 Rev 4
Jun 6, 2023
061600 ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
Engine Control Module (EMS) Software (MSW) Information - Improvement List, Through June 2023 - US21+OBD2020 Emissions
KC-2043 Rev 4
Jun 6, 2023
110000 ELECTRICAL SYSTEM
Engine Control Module (EMS) Software (MSW) Information - Improvement List, Through June 2023 - US21+OBD2020 Emissions
KC-2116 Rev 8
Jun 5, 2023
060000 ENGINE AND ENGINE COOLING
Mack NOx Sensor Troubleshooting Guide - US10+OBD13 And Newer Emissions
KC-2158 Rev 6
Jun 5, 2023
110000 ELECTRICAL SYSTEM
CBR - Mack Selective Catalytic Reduction (SCR) Muffler Troubleshooting Guide - US10+OBD13 And Newer Emissions
KC-2158 Rev 6
Jun 5, 2023
063100 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL
CBR - Mack Selective Catalytic Reduction (SCR) Muffler Troubleshooting Guide - US10+OBD13 And Newer Emissions
KC-2158 Rev 6
Jun 5, 2023
060000 ENGINE AND ENGINE COOLING
CBR - Mack Selective Catalytic Reduction (SCR) Muffler Troubleshooting Guide - US10+OBD13 And Newer Emissions
SLM23-005
May 31, 2023
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
Service Literature Published and Released in May, 2023
KC-2050
May 30, 2023
060000 ENGINE AND ENGINE COOLING
CBR: Diagnostic Trouble Code (DTC) P225C00 : NOx1 Sensor Stuck High - US17+OBD2019 And Newer Emissions
KC-331-Ver6
May 22, 2023
080000 FUEL SYSTEM, DIESEL
CBR: Model Year 2017 to Current - Fuel Filter Change ( Primary And Secondary ) For The EM - USA17 Emission Engines
KC-2012-Ver3
May 18, 2023
030000 BRAKES (PWS)
CBR: SNM 20-005 - HD Disc Brake Rotor Upgrade
KC-503-Ver3
May 17, 2023
100000 POWER TRAIN
CBR: Automated Manual Transmission ( AMT ) -Transmission Electronic Control Unit ( TECU ) MID130 PSID 29 FMI 7 /P10AE81 Fault Codes Being Generated
KC-2263-Ver5
May 16, 2023
060000 ENGINE AND ENGINE COOLING
CBR: Timing Gear Plate Repair. This solution provides supplementary information to be used when installing a Timing Gear Plate with Integrated Seal.
KC-2229-Ver2
May 10, 2023
100000 POWER TRAIN
CBR: Automated Manual Transmission (AMT) Transmission Kickdown Mode
KC-2226-Ver3
May 3, 2023
110000 ELECTRICAL SYSTEM
CBR: Diagnostic Trouble Code (DTC) U1FFF68 - Factory Mode Active, Event Information - Model Year (MY) 2023
KC-474-Ver5
May 2, 2023
100000 POWER TRAIN
CBR: Diagnostic Trouble Code (DTC) P215A-64, Fault Code SPN 84 FMI 19
KC-2264
Apr 20, 2023
110000 ELECTRICAL SYSTEM
CBR: Mack Chassis - Allison Reduced Engine Load At A Stop (RELS) Diagnostic Trouble Code P071a Or P07ce - GR,TE,LR Models - Non-Split/Drop Box PTO
KC-2272
Apr 19, 2023
060000 ENGINE AND ENGINE COOLING
CBR: Diagnostic Trouble Code (DTC) P008A - Low Pressure Fuel System Pressure - Too Low
M-773-005a
Apr 18, 2023
200000 WHEELS
TSB: Hub Cap, Leaking
MACK LR - All Years Overview
Complete safety history for the MACK LR across all model years (2010, 2025).
30
Total Recalls
1
Total Complaints
0
Investigations
0
Reported Crashes
0
Reported Fires
0
Reported Deaths
MACK LR - Year by Year
Compare recalls and complaints across model years. Click any year to see full details.