2018 MACK LR Problems, Recalls & Safety Rating

Overview of the 2018 MACK LR

The 2018 MACK LR has received a total of 0 safety complaints filed with the National Highway Traffic Safety Administration (NHTSA). There has been 1 recall campaign affecting this vehicle, covering issues with ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR. 13 technical service bulletins have been issued by Mack Trucks, Inc. for this model year.

Recalls for the 2018 MACK LR

NHTSA has recorded 1 recall for the 2018 MACK LR, potentially affecting up to 3,282 vehicles.

Recall 17V261000 — ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR

June 16, 2017 | 3,282 vehicles affected

Defect: Mack Trucks, Inc. (Mack) is recalling certain 2015-2018 LR and 2011-2018 TerraPro (LEU and MRU) trucks. The alternator cable may be insufficiently thick to handle the current, and, as a result, may overheat.

Consequence: If the alternator cable overheats, it would increase the risk of a fire.

Remedy: Mack will notify owners, and dealers will replace the alternator cable, free of charge. The recall began on June 16, 2017. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0407.

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Owner Complaints for the 2018 MACK LR

No complaints have been filed with NHTSA for the 2018 MACK LR.

Safety Rating for the 2018 MACK LR

NHTSA has not yet tested the 2018 MACK LR in its New Car Assessment Program.

Technical Service Bulletins for the 2018 MACK LR

Mack Trucks, Inc. has issued 13 technical service bulletins (TSBs) for the 2018 MACK LR. TSBs are notices sent by manufacturers to their dealers describing a known issue and the recommended repair procedure.

CBR 2171-11 202511 — ENGINE

November 22, 2025

CBR - Mack Temperature Sensor Troubleshooting Guide

M0068 — EQUIPMENT

November 12, 2019

EC0020C Cabover, Analysis & SCR Hardware Replacement - 2 Box

K10075112 — EQUIPMENT

October 23, 2018

Remote Control Central Door Lock, Programming; Key Fob Cannot Be Programmed Or Does Not Work After Programming - Model Year 2018 And Newer

K24992549 — ELECTRICAL SYSTEM

August 21, 2018

Engine Control Module (EMS) Software (MSW) Information; Improvement List (Change Log) And Explanations For Issues And Diagnostic Trouble Codes (DTC, Fault Codes) US17+OBD2016 Emissions, Model Year 2018 (Common Rail Fuel System ONLY)

K90358413 — ENGINE AND ENGINE COOLING

July 20, 2018

Common Rail Fuel System - Diagnostic Trouble Code ( DTC ) P0094-00 Fuel System Leak Detected, Small Leak, Diagnostic Information - US17+OBD16 And US17+OBD18 Emissions, Common Model Years 2018 And 2019

PI0883 — ELECTRICAL SYSTEM

July 3, 2018

ECM and ACM, Software Updates

K00491826 — ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

June 19, 2018

Mack Chassis - Diagnostic Trouble Codes ( DTC ) P208E And P103B Logging With Possible Derate ( SCR Inducement ) - US14+OBD13, US14+OBD15, US14+OBD16 And US17+OBD16 And Newer Emissions, Common Year Models 2015 And Newer

K12902414 — ELECTRICAL SYSTEM

April 23, 2018

Engine Speed Does Not Ramp Up From Body Builder Module Request; Requests Sent Via Data Link / Body Link Connector, Not By Switch Or Hardwired Circuit - Generation 2 (INT-GEN2) And Newer (Commonly Model Year 2018)

K23232043 — ENGINE AND ENGINE COOLING:EXHAUST SYSTEM

April 17, 2018

Mack Chassis - Diagnostic Trouble Code ( DTC ) P02FA Illuminating The Malfunction Indicator Lamp (MIL) - US17+OBD16 And US17+OBD18 (GHG17) Emissions (With Common Rail Fuel System), Commonly Model Years 2018 And 2019

K23232043 — EXTERIOR LIGHTING