2018 MACK MRU — Problems, Recalls & Safety Data
N/A
Safety Rating
1
Owner Complaint
1
Recall
16
Service Bulletins
0
Investigations
Overview of the 2018 MACK MRU
The 2018 MACK MRU has received a total of 1 safety complaint filed with the National Highway Traffic Safety Administration (NHTSA). There has been 1 recall campaign affecting this vehicle, covering issues with SERVICE BRAKES, AIR:ANTILOCK. 16 technical service bulletins have been issued by Mack Trucks, Inc. for this model year. The most commonly reported problem area is the Wheels (1 complaint).
Recalls for the 2018 MACK MRU
NHTSA has recorded 1 recall for the 2018 MACK MRU, potentially affecting up to 142 vehicles.
Recall 25V030000 — SERVICE BRAKES, AIR:ANTILOCK
| 142 vehicles affected
Defect: Mack Trucks, Inc. (Mack) is recalling certain 2010-2018 MRU and 2019-2025 Terrapro towing vehicles. The vehicles are missing the anti-lock brake (ABS) warning light and circuitry that controls the anti-lock brake function for an attached trailer. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 121, "Air Brake Systems."
Consequence: Driving without a functioning anti-lock brake system may result in the trailer not braking as intended, increasing the risk of a crash.
Remedy: Dealers will add an ABS warning light and circuitry, free of charge. Owner notification letters were mailed April 28, 2025. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0474.
View full details →Owner Complaints for the 2018 MACK MRU
1 complaint has been filed with NHTSA for the 2018 MACK MRU. Below is a breakdown by vehicle component.
| Component | Complaints | Crashes | Fires | Injuries | Deaths |
|---|---|---|---|---|---|
| Wheels | 1 | 0 | 0 | 0 | 0 |
Most Recent Complaints
2018 MACK GRU WITH 40K HAS TWO CRACKED FRONT WHEELS MADE BY ALCOA. WE HAVE 10 OTHER TRUCKS 2012 TO 2019 WITH SAME WHEELS AND NO CRACKS. AFTER LITTLE RESEARCH ON THE INTERNET IT IS OBVIOUS MANY OTHER PEOPLE ARE HAVING THIS PROBLEM ON BUSES, RVS, AND TRUCKS. STRANGE WE WOULD HAVE 2 ON SAME TRUCK AND NO OTHERS. IT IS EASY TO ASSUME THE ALUMINUM ALLOY IS NOT RIGHT. VERY DANGEROUS!!!! PICTURES ATTACHED, YOU ARE WELCOME TO WHEELS, NOT LOOKING FOR ANYTHING, JUST GIVING INFORMATION
Safety Rating for the 2018 MACK MRU
NHTSA has not yet tested the 2018 MACK MRU in its New Car Assessment Program.
Technical Service Bulletins for the 2018 MACK MRU
Mack Trucks, Inc. has issued 16 technical service bulletins (TSBs) for the 2018 MACK MRU. TSBs are notices sent by manufacturers to their dealers describing a known issue and the recommended repair procedure.
CBR-561 202503 — ENGINE
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-2391 202408 — ELECTRICAL SYSTEM
CBR: Diagnostic Trouble Code (DTC) U010187- Lost Communication With TECU
KC-503-Ver3 — POWER TRAIN
CBR: Automated Manual Transmission ( AMT ) -Transmission Electronic Control Unit ( TECU ) MID130 PSID 29 FMI 7 /P10AE81 Fault Codes Being Generated
M-851-001 — STRUCTURE
2008 Document reformatted to be published as a TSB in Impact. Crack in cab at engine tunnel.
M-561-001 — SERVICE BRAKES, AIR
2009 Document reformated to be published as a TSB in Impact. Air Piping Diagrams.
KC-311 — ELECTRICAL SYSTEM
Diagnostic Trouble Code (DTC, Fault Code) MID 140 PSID 210 FMI 12, Faulty Unit or Component Present On DTC Readout; Vehicle Operation Not Affected: No Physical Symptoms Or Warning Lights In Instrument Cluster - Model Year 2018
FSB 237-021v2 — FUEL SYSTEM, DIESEL
Revision: Valve, Common Rail, Removal
K75110032 — EQUIPMENT
FSB 233-007, Fuel Filter Housing, Replacement; Extra Port On Fuel Filter Housing When Replacing With New Part - Vehicles Manufactured Between 14 November 2016 And 31 December 2019
K53580514 — EQUIPMENT
Brake Drum Inspection - Checking Runout, Wear, And Other Characteristics
K31822325 — EQUIPMENT
Mack Chassis - Differential Carrier Models CRD 125 And CRD 150 - New Differential Axle Seal Installation Tool; New Tool Required For New Input And Output Seal Installation
Showing 10 of 16 technical service bulletins.
NHTSA Investigations for the 2018 MACK MRU
There are no NHTSA defect investigations on record for this vehicle.
Other Model Years of the MACK MRU
- 2013 MACK MRU — 0 complaints
- 2014 MACK MRU — 0 complaints
- 2015 MACK MRU — 0 complaints
- 2016 MACK MRU — 0 complaints
- 2017 MACK MRU — 0 complaints
- 2018 MACK MRU (current)
Other MACK Models
- MACK MACK — 35 total complaints
- MACK ANTHEM (AN) — 12 total complaints
- MACK CXU612 — 12 total complaints
- MACK CX613 — 10 total complaints
- MACK GRANITE (GR) — 10 total complaints
- MACK CH600 — 9 total complaints
- MACK GU — 9 total complaints
- MACK RD — 8 total complaints