NHTSA vehicle safety data

2018 Mack MRU Recalls & Complaints

The 2018 Mack MRU has 1 NHTSA recall campaign and 1 owner complaint on file as of November 3, 2026. Recall repairs are usually free at an authorized Mack dealer.

NHTSA recall and complaint data for the 2018 Mack MRU. Recall data is refreshed daily from NHTSA.

2018 Mack MRU owner complaints

Owners have filed 1 complaint with NHTSA about the 2018 Mack MRU, describing incidents dated October 5, 2020.

Most-cited components

Wheels 1 complaint

Newest complaints

ODI #11362996 · Filed October 6, 2020
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…

Read the full complaint

Missing ABS Function for Trailer/FMVSS 121

NHTSA #25V030000 · Service Brakes, Air — Antilock · NHTSA notice

Reported January 23, 2025 · Mack Trucks, Inc.

Potentially affected: 142 vehicles

Repair completion: 30.99% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Mack campaign SC0474 · Owners notified April 30, 2025 · Vehicles built June 30, 2010 – December 14, 2017 (per NHTSA)

Defect description

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."

Safety consequence

Driving without a functioning anti-lock brake system may result in the trailer not braking as intended, increasing the risk of a crash.

Manufacturer 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.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153) or go to nhtsa.gov.

try.vin has no NCAP crash-test rating on file for the 2018 Mack MRU. NHTSA rates some vehicles by body style — pickups by cab, vans by roof height — so check nhtsa.gov/ratings.

1 owner complaint has been filed with NHTSA for the 2018 Mack MRU.

Wheels

ODI #11362996

Incident: October 5, 2020 · Filed: October 6, 2020

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

Other Mack MRU model years

Check your 2018 Mack MRU VIN

Not every recall applies to every VIN in a given year. Enter the 17-character VIN from your Mack MRU at nhtsa.gov/recalls to see whether your specific vehicle has an unrepaired recall.

Check a Mack VIN