Complaints over time
Complaints about the 2019 Mack LR peaked in 2023, with 1 filed
Owner complaints about this model year, by the year they were filed with NHTSA.
Source: NHTSA ODI complaints file. The lighter column runs through October.
Model year
2019 Mack LR
Truck, diesel, 6x4, built in United States. Owner complaints on file from Jul 24, 2023 to Jul 24, 2023.
Recall campaigns covering this model year21,090 vehicles or units across those campaigns
Owner complaints1Close to the median 2019 truck
Severity index0.02019 trucks average 4.3
First 24 months0Complaints in its first two years
Components
100% of complaints about the 2019 Mack LR name fuel system
Owner complaints by component. Hover or focus a bar for the crash, fire, injury or death count.
Source: NHTSA ODI complaints file. A complaint can name more than one component; it is counted under the first.
Recalls
2 recall campaigns cover the 2019 Mack LR
Check a specific vehicle by VIN on NHTSA's site: a campaign may cover only part of a model year's production.
| Campaign | Filed | Subject | Component | Vehicles | Remedy |
|---|---|---|---|---|---|
| 21V-293 | Apr 26, 2021 | Steering transfer case may have an insufficient amount of oil | Steering | 272 | Part replacement |
| 18V-810 | Nov 15, 2018 | Sidewall steel body cords may be exposed, possibly causing unexpected, rapid air loss while driving | Tires | 818 | Part replacement |
Source: NHTSA ODI recalls file.
Owner complaints
What owners reported about the 2019 Mack LR
The full text of every complaint filed with NHTSA about this model year, newest first. Complaints are filed by owners and are not verified by NHTSA; NHTSA removes personal details before publishing.
1 complaint on file, page 1 of 1.
- Filed Jul 24, 2023Failure May 23, 202340,797 milesMiddle River, MDFuel system, Diesel
The contact owns a 2019 Mack LR64. The contact stated that while driving at an undisclosed speed, the secondary fuel filter detached, and the vehicle stalled. The vehicle was towed to an independent mechanic, where the vehicle was repaired. The fuel filter was replaced. The manufacturer was made aware of the failure. The failure mileage was approximately 40,797.
NHTSA complaint 11534032
Source: NHTSA ODI complaints file.
Investigations
NHTSA has not opened an investigation on this model year
Source: NHTSA ODI investigations file.
Service bulletins
222 manufacturer communications cover this model year
Technical service bulletins and other notices the manufacturer sent to dealers. A bulletin is not a recall; the 60 most recent are listed.
- CBR 2573-1 202604 Apr 9, 2026 · Service Bulletin/Repair Instructions
CBR - Mack Chassis - Through Shaft Bearing Retainer Breakage On Mack Carriers. - CBR 2362-3 202604 Apr 9, 2026 · Service Bulletin/Repair Instructions
CBR - Mack Carrier Nut Adhesive Change. - CBR 126 022026 Feb 4, 2026 · Service Bulletin/Repair Instructions
CBR - The purpose of this solution is to give information on Engine Control Module (EMS) Software content. - CBR 820-9 202601 Jan 8, 2026 · Service Bulletin/Repair Instructions
CBR - Mack Chassis - Engine Brake Only Works With The Brake Pedal, No Function During Cruise. US07 And Newer Emissions, Model Year 2008 And Newer. - CBR 2107-22 202601 Jan 7, 2026 · Service Bulletin/Repair Instructions
CBR - Mack DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions to US22+OBD2023 (DOES NOT APPLY TO AN(4) and PR(4)). - CBR 2171-11 202511 Nov 22, 2025 · Service Bulletin/Repair Instructions
CBR - Mack Temperature Sensor Troubleshooting Guide - CBR 2515-1 102025 Oct 20, 2025 · Service Bulletin/Repair Instructions
CBR - Hard Steering Due to Steering Column Miter Box Corrosion – Inspection and Replacement Procedure - CBR 407 072025 Jul 17, 2025 · Service Bulletin/Repair Instructions
CBR - To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP file will need to downloaded. - CBR 2488 072025 Jul 28, 2025 · Service Bulletin/Repair Instructions
CBR - A significant GPS reporting issue is affecting fleet operations, with trucks maintaining back-office communication but failing to transmit GPS location data. - CBR 2107-21 202505 May 27, 2025 · Service Bulletin/Repair Instructions
Mack DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions and Newer - CBR 901-5 202505 May 13, 2025 · Service Bulletin/Repair Instructions
Remote Control Central Door Lock, Programming; Key Fob Cannot Be Programmed Or Does Not Work After Programming - Model Year 2018 And Newer - CBR 445- 11 202505 May 1, 2025 · Service Bulletin/Repair Instructions
Vehicles Equipped With a Common Rail Fuel System - Aftermarket Secondary Fuel Filters, Important Information On Approved Filters - US17+OBD16 toUS21+OBD23 - CBR 170-8 202505 May 28, 2025 · Service Bulletin/Repair Instructions
Inactive Code P25AE00 Being Generated After A Hard Pull And A Momentary Drop In Engine Oil Pressure (Low Oil Pressure) (Possible Related Codes - SPN4811 , SPN 100 , PID 100) - CBR-561 202503 Mar 6, 2025 · Service Bulletin/Repair Instructions
If oil dilution is suspected refer to the applicable CBR solution below: ∙ CBR-659Mack Chassis - Oil Diluted With Fuel; Fuel In Oil, Diagnostic Information - All Emissions, All Model Years - CBR-2016 202412 Dec 3, 2024 · Service Bulletin/Repair Instructions
Frame lean can be caused by several seemingly isolated possibilities. The two most common are suspension and frame assembly issues. - CBR-997 202411 Nov 14, 2024 · Service Bulletin/Repair Instructions
Vehicles 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. - CBR-2263 202410 Oct 31, 2024 · Service Bulletin/Repair Instructions
CBR - Mack Chassis - Timing Gear Plate Repair - CBR-731 202409 Sep 16, 2024 · Service Bulletin/Repair Instructions
CBR: 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 - CBR-570 202409 Sep 20, 2024 · Service Bulletin/Repair Instructions
CBR: US17 GHG Common Rail Fuel System Component Electrical Faults - Model Year 2017 To 2024 - CBR-471 202409 Sep 10, 2024 · Service Bulletin/Repair Instructions
CBR: 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. - CBR-407 202409 Sep 13, 2024 · Service Bulletin/Repair Instructions
CBR: To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP fi le will need to be downloaded. - CBR-2391 202408 Aug 6, 2024 · Service Bulletin/Repair Instructions
CBR: Diagnostic Trouble Code (DTC) U010187- Lost Communication With TECU - CBR-561 202408 Aug 13, 2024 · Service Bulletin/Repair Instructions
CBR: 11L, 13L, And 16L Engine Oil Analysis Specifications - US10 And Newer Emissions - CBR-523 202408 Aug 13, 2024 · Service Bulletin/Repair Instructions
CBR: Overhead Wear Overview - Model Year2018 To Current (Common Rail Fuel System ONLY) - CBR-2350 202407 Jul 2, 2024 · Service Bulletin/Repair Instructions
CBR: Telematics Gateway (TGW) Connect Ability Issues - CBR-2383 202406 Jun 19, 2024 · Service Bulletin/Repair Instructions
CBR - Accelerator Pedal: Inspection Instructions - CBR-2139 202405 May 2, 2024 · Service Bulletin/Repair Instructions
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. A new and improved fuel galley plug has been developed to reso… - CBR-2013 202404 Apr 2, 2024 · Service Bulletin/Repair Instructions
CBR: Turbo Compound (TC) Hot Side Noise, Diagnostic Information. - CBR-1008 202404 Apr 22, 2024 · Service Bulletin/Repair Instructions
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-2139 202403 Mar 1, 2024 · Service Bulletin/Repair Instructions
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-2350 202402 Feb 21, 2024 · Service Bulletin/Repair Instructions
CBR -Telematics Gateway (TGW) Connect Ability Issues - CBR-2347 202402 Feb 16, 2024 · Service Bulletin/Repair Instructions
CBR - Active "Set Park Brake" Message On Drivers Information Display (DID). - CBR-202 202402 Feb 16, 2024 · Service Bulletin/Repair Instructions
CBR - Automated Manual Transmission ( AMT ) Flywheel Pilot Bearing Wear On Input Shaft. - CBR-2014 202402 Feb 16, 2024 · Service Bulletin/Repair Instructions
CBR - Driveline Noise, Suspension Ride Height Too High, Suspension Will Not Exhaust - Chassis Built 2016w01 And Newer. - CBR-2333 202401 Jan 18, 2024 · Service Bulletin/Repair Instructions
CBR: TGW Will Not Connect After SIM Card Replacement - CBR-2320 202312 Dec 1, 2023 · Service Bulletin/Repair Instructions
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 · Service Bulletin/Repair Instructions
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 - 3.98 ratios. The ne… - CBR-399 202310 Oct 19, 2023 · Service Bulletin/Repair Instructions
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 · Service Bulletin/Repair Instructions
TSB: Aftertreatment Diesel Exhaust Fluid (DEF) Tank, Level Sensor, Replacement - S7567 202309 Sep 4, 2023 · Service Bulletin/Repair Instructions
Service Campaign: Electronic Pressure Relief Valve (EPRV) Delete & Fuel Rail Pressure Sensor Update - M728-005A 202308 Aug 14, 2023 · Service Bulletin/Repair Instructions
TSB: Barksdale Leveling Valve, Leak Test - CBR-2112 202307 Jul 24, 2023 · Service Bulletin/Repair Instructions
CBR: Programming Failure - Chassis With Cummins Engine And An Allison Transmission - CBR-2303 202307 Jul 1, 2023 · Service Bulletin/Repair Instructions
CBR: Mack DEF Dosing Valve Diagnostic Trouble Codes (DTC) P202D00, P208E00, P103B00 - US10+OBD13 And Newer Emissions - KC-2094 Rev 3 Jun 22, 2023 · Service Bulletin/Repair Instructions
Infotainment System - Volume Drop During A Phone Call, Phone Connected Via Bluetooth - KC-2292 Jun 13, 2023 · Service Bulletin/Repair Instructions
Vehicles Equipped With Chalmers Suspension - Frame Bracket Hardware Loose or Interfering - KC-2116 Rev 9 Jun 16, 2023 · Service Bulletin/Repair Instructions
Mack NOx Sensor Troubleshooting Guide - US10+OBD13 And Newer Emissions - KC-2116 Rev 8 Jun 5, 2023 · Service Bulletin/Repair Instructions
Mack NOx Sensor Troubleshooting Guide - US10+OBD13 And Newer Emissions - KC-2158 Rev 6 Jun 5, 2023 · Service Bulletin/Repair Instructions
CBR - Mack Selective Catalytic Reduction (SCR) Muffler Troubleshooting Guide - US10+OBD13 And Newer Emissions - SLM23-005 May 31, 2023 · Service Bulletin/Repair Instructions
Service Literature Published and Released in May, 2023 - KC-331-Ver6 May 22, 2023 · Service Bulletin/Repair Instructions
CBR: Model Year 2017 to Current - Fuel Filter Change ( Primary And Secondary ) For The EM - USA17 Emission Engines - KC-503-Ver3 May 17, 2023 · Service Bulletin/Repair Instructions
CBR: Automated Manual Transmission ( AMT ) -Transmission Electronic Control Unit ( TECU ) MID130 PSID 29 FMI 7 /P10AE81 Fault Codes Being Generated - KC-2229-Ver2 May 10, 2023 · Service Bulletin/Repair Instructions
CBR: Automated Manual Transmission (AMT) Transmission Kickdown Mode - KC-474-Ver5 May 2, 2023 · Service Bulletin/Repair Instructions
CBR: Diagnostic Trouble Code (DTC) P215A-64, Fault Code SPN 84 FMI 19 - KC-2263-Ver5 May 16, 2023 · Service Bulletin/Repair Instructions
CBR: Timing Gear Plate Repair. This solution provides supplementary information to be used when installing a Timing Gear Plate with Integrated Seal. - KC-2264 Apr 20, 2023 · Service Bulletin/Repair Instructions
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-2269 Apr 18, 2023 · Service Bulletin/Repair Instructions
CBR: 11L Engines, Non-Common Rail - Air Compressor Coolant Pipe, Parts Substitution - US14+OBD13 To US14+OBD16 - S7627 Feb 28, 2023 · Service Bulletin/Repair Instructions
Mack MMD Alternator Pulley - S7567 Feb 28, 2023 · Service Bulletin/Repair Instructions
Electronic Pressure Releif Valve (EPRV) Delete & Fuel Rail Pressure Sensor - KC-2244 Feb 22, 2023 · Service Bulletin/Repair Instructions
Mack Model TE,LR - Frame Over Height - KC-2165 Feb 10, 2023 · Service Bulletin/Repair Instructions
Mack DEF Pump Troubleshooting Guide - US10+OBD13 And Newer Emissions
Source: NHTSA manufacturer communications files.