2023 Mack LR
Safety record from NHTSA: recalls, owner complaints, investigations and service bulletins.
Have the VIN?
These records cover every 2023 Mack LR. To see whether one car still needs a recall repair, decode its VIN or check it with NHTSA.
Recalls
2 recalls name the 2023 Mack LR. Newest first.
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 Standard number 124, "Accelerator Control Systems."
Risk and remedy
Risk
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.
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.
Risk and remedy
Risk
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.
Service bulletins
Technical service bulletins and other communications the manufacturer sent dealers about this vehicle. Ask a dealer for the full document by its number.
- 11010857Vehicles may present with oil leak coming from the clutch/flywheel housing and observation of burned clutch smell or clutch slipping. These symptoms can be mistaken as a crankshaft rear main seal leak, when the actual cause is the crankshaft adaptor O-ring.
- 11010820CBR - 11L Engine block compatibility and Backward Conversion Parts Requirements
- 11009705CBR - Mack Chassis - Timing Gear Plate Repair
- 11008392Service Campaign: TGW3 Non-Communication
- 11008379CBR: Diagnostic Trouble Code (DTC) P107471 - AMT-F
- 11008377CBR: Automated Manual Transmission (AMT) Model D or F (mDrive and I-Shift, AMT-D, AMT-F) - Transmission Oil Leakage From Transmission Input Shaft Seal Or Output Shaft Seal - US10 And Newer Emissions, Common Model Years 2010 And Newer
- 11008374CBR: US17 GHG Common Rail Fuel System Component Electrical Faults - Model Year 2017 To 2024
- 11008368CBR: The procedure to eliminate the Mack Chassis "Air Restriction Light On" seen in the cluster is to confirm that the parameter YYT is set to "Enable" with Premium Tech Tool.
- 11008366CBR: To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP fi le will need to be downloaded.
- 11006927CBR: Diagnostic Trouble Code (DTC) U010187- Lost Communication With TECU
- 11006925CBR: 11L, 13L, And 16L Engine Oil Analysis Specifications - US10 And Newer Emissions
- 11006924CBR: Overhead Wear Overview - Model Year2018 To Current (Common Rail Fuel System ONLY)
- 11006860Service Campaign: Mack trucks has determined that certain AN, GR, PI, TE, and LR model trucks built with TGW3 have stopped communicating after production.
- 11005410CBR: Telematics Gateway (TGW) Connect Ability Issues
- 11003042CBR - Accelerator Pedal: Inspection Instructions
- 11002843CBR - Brake Caliper Concerns And Premature Brake Pad Wear - Model Year 2023 - 2024
- 11000831CBR: 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. A new and improved fuel galley plug has been developed to resolve this issue.
- 10253810CBR: Diagnostic Trouble Code (DTC) P107471 -AMT-F
- 10253807CBR: Turbo Compound (TC) Hot Side Noise, Diagnostic Information.
- 10253804CBR: 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.
- 10252308CBR: 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.
- 10251333CBR -Telematics Gateway (TGW) Connect Ability Issues
- 10251331CBR - Active "Set Park Brake" Message On Drivers Information Display (DID).
- 10251330CBR - Diagnostic Trouble Code (DTC) P107471 - AMT-F
- 10251329CBR - Automated Manual Transmission ( AMT ) Flywheel Pilot Bearing Wear On Input Shaft.
- 10251328CBR - Driveline Noise, Suspension Ride Height Too High, Suspension Will Not Exhaust - Chassis Built 2016w01 And Newer.
- 10249553CBR: TGW Will Not Connect After SIM Card Replacement
- 10248101CBR: 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.
- 10246086TSB: 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 - 3.98 ratios. The new HD through shaft is an upgrade over the current standard shaft and can now be used as a replacement part instead of the standard shaft. The new HD shaft has a new design to increase strength, longevity and life over the standard shaft.
- 10244808CBR: 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
- 10243453TSB: Aftertreatment Diesel Exhaust Fluid (DEF) Tank, Level Sensor, Replacement
- 10241946TSB: Barksdale Leveling Valve, Leak Test
- 10241914CBR: Intermittent Diagnostic Trouble Codes U02A3,U029D, U029E - USE FOR NEW VEHICLES (US21+OBD22 Emissions)
- 10240231CBR: Programming Failure - Chassis With Cummins Engine And An Allison Transmission
- 10240202CBR: Mack DEF Dosing Valve Diagnostic Trouble Codes (DTC) P202D00, P208E00, P103B00 - US10+OBD13 And Newer Emissions
- 10238836Diagnostic Trouble Code (DTC) P103200: Particulate Matter Sensor Removed from Exhaust - US21+OBD22 Emissions
- 10238834Infotainment System - Volume Drop During A Phone Call, Phone Connected Via Bluetooth
- 10238830Vehicles Equipped With Chalmers Suspension - Frame Bracket Hardware Loose or Interfering
- 10238827iLok Fastener Torque
- 10238826Engine Control Module (EMS) Software (MSW) Information - Improvement List, Through June 2023 - US21+OBD2020 Emissions
Every Mack LR model year
Bars are owner complaints, dots mark years with recalls. Select a year to open its report.