RoadVitals

2024 Mack Lr

Recalls, owner-reported complaints, investigations and safety data

NHTSA has issued a “do not drive” advisory affecting this model year.

Campaign 23V713000. Confirm whether your specific vehicle is covered using its VIN before acting on this.

Check your VIN on NHTSA.gov
Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
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Safety recallsA safety recall is issued when a manufacturer or NHTSA determines that a vehicle has a safety-related defect or does not comply with a federal motor vehicle safety standard. Recall repairs are free. Whether a specific vehicle is covered depends on its VIN — a recall listed for a model year does not necessarily apply to every vehicle of that year.
6
Latest Mar 27, 2024
InvestigationsNHTSA opens an investigation to examine whether a safety defect may exist. An open investigation is not a determination that a defect exists, and many investigations close without a recall. Investigations can, however, lead to one.
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Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
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Overview

Our database contains no NHTSA owner-reported complaints for the 2024 Mack Lr. 6 safety recalls have been issued covering this model year; and 80 manufacturer communications are on file.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Safety recalls

6 campaigns cover this model year

View all 6

Recalls apply to specific vehicles, not to every vehicle of a model year. Check your VIN with NHTSA or your manufacturer's dealer to confirm whether a recall affects your vehicle.

Check a VIN on NHTSA.gov
24V232000

ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS

Mar 27, 2024
106 units potentially affected
The defect: Mack Trucks, Inc. (Mack) is recalling certain 2024-2025 LR natural gas vehicles. The methane detector may be inoperative due to a missing fuse.
The risk: An inoperative methane detector can fail to detect a gas leak, increasing the risk of a fire or injury.
The remedy: Dealers will install a fuse, free of charge. Owner notification letters were mailed April 10, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0461.
Mack Trucks, Inc.Manufacturer number SC0461View on NHTSA.gov
23V792000

VEHICLE SPEED CONTROL

Nov 22, 2023
650 units potentially affected
The defect: 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."
The risk: An engine that does not return to idle quickly enough can cause a loss of vehicle control, increasing the risk of a crash.
The 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.Manufacturer number SC0455View on NHTSA.gov
23V713000NHTSA advisory: do not drive

STEERING

Oct 24, 2023
47 units potentially affected
The defect: Mack Trucks, Inc. (Mack) is recalling certain 2024 LR vehicles. The fasteners that connect the power steering assist cylinder to steering arm may be loose or missing.
The risk: The power steering assist cylinder may separate from the steering arm, causing a loss of vehicle control and increasing the risk of a crash.
The remedy: Owners are advised not to drive their vehicles until the repair has been performed. Dealers will inspect and tighten the steering gear fasteners and install a new cotter pin, free of charge. Owner notification letters are expected to be mailed December 15, 2023. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0451.
Mack Trucks, Inc.Manufacturer number SC0451View on NHTSA.gov

Recent owner complaints

Reports submitted to NHTSA, shown in the owner's own words

No owner complaints recorded for this model year

Either none have been filed with NHTSA, or this vehicle is too new for reports to have accumulated.

Manufacturer communications

A bulletin sent by a manufacturer to its dealers. Not a recall, and repairs are not necessarily free.

CBR-2592-1 202606

ENGINE

The purpose of this CBR is to provide steps on how to correct a customer complaint of DTC P107B86 accompanied With intermittent loss of throttle.

CBR 2362-3 202604

POWER TRAIN

CBR - Mack Carrier Nut Adhesive Change.

CBR 2573-1 202604

POWER TRAIN

CBR - Mack Chassis - Through Shaft Bearing Retainer Breakage On Mack Carriers.

SC S4920 202604

SUSPENSION

SC - Trunion Nut Pinch Bolt.

CBR 2712-7 032026

ELECTRICAL SYSTEM

CBR - No Start Condition After Over the Air Programing.

S4342 022026

FUEL/PROPULSION SYSTEM

SC - Mack Trucks has determined that a select group of trucks were built with an AHI Module fuel pressure sensor which does not meet our specifications.

Manufacturers file copies of the bulletins they send to dealers with NHTSA. These often describe diagnostic or repair procedures for a known condition. They are not recalls: repairs described in a bulletin are usually only free if the vehicle is still under warranty or the manufacturer has extended coverage.

Compare model years

Complaint and recall counts across every year of this model

Mack Lr by model year
YearComplaintsRecallsInvestigationsIssue Index
2027000—
2026000—
2025020—
2024Viewing060—
2023020—
2022010—
2021030—
2020010—
2019120—
2018010—
2017010—
2016031—
2015030—
2014010—
2013010—
2012010—
2011010—
2010010—

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers. Older model years have had longer for reports to accumulate.