Recall Register

2015 Mack MRU: recalls and complaints

NHTSA lists 3 recall campaigns for the 2015 Mack MRU. The newest campaign is 25V030000. NHTSA received the report on 23 Jan 2025. The NHTSA record gives the component Service Brakes, Air / Antilock. NHTSA has no complaint on file for this model year.

The NHTSA recall file shows no do-not-drive advisory and no park-outside advisory on these campaigns.

This page cannot show if a recall applies to one vehicle. The NHTSA VIN lookup shows the unrepaired recalls of one vehicle.

Remedy of the newest campaign, 25V030000, in the NHTSA record

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.
NHTSA VIN lookup

Complaint information entered into NHTSA’s Office of Defects Investigation vehicle owner's complaint database is used with other data sources to identify safety issues that warrant investigation and to determine if a safety-related defect trend exists.

NHTSA publishes these words. Source: NHTSA Datasets and APIs, section Complaints, read on . Complaint file through . Recall file through .

Since the last update

No tracked figure of this page changed in a data update. What the log tracks

All updates to the register

Recall campaigns

3 campaigns, newest first. 4,200 units in total.

  1. 25V030000Received . 142 units.

    Service Brakes, Air / Antilock

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

    Report filed by Mack Trucks, Inc.. Manufacturer campaign number SC0474. Owner notification date in the NHTSA record: .

  2. 15V275000Received . 2,124 units.

    Engine and Engine Cooling / Engine

    Defect, in the NHTSA record
    Mack Trucks, Inc. (Mack) is recalling certain model year 2011-2016 Mack MRU and LEU trucks manufactured June 25, 2010, to April 30, 2015, and 2015-2016 LR6 trucks manufactured from December 18, 2014 through March 6, 2015. Excessive engine crankcase pressures may cause the 90-degree elbow of the vent tube assembly to detach from the crankcase ventilation breather, possibly allowing engine oil to come into contact with hot surfaces.
    Consequence, in the NHTSA record
    If engine oil comes into contact with a hot surface, there could be an increased risk of a fire.
    Remedy, in the NHTSA record
    Cummins will notify owners on behalf of Mack, and Cummins service centers will administer the repairs which include securing the ends of the 90-degree elbow and reprogramming the electronic control module (ECM) with software that can adjust the engine output under misfire conditions to limit crankcase pressures. These repairs will be performed free of charge. The recall began on June 12, 2015. Owners may contact Mack customer service at 1-800-528-6586 or Cummins Inc. at 1-800-343-7357. Mack's number for this recall is SC0391.

    Report filed by Mack Trucks, Inc.. Manufacturer campaign number SC0391. Owner notification date in the NHTSA record: .

  3. 14V137000Received . 1,934 units.

    Engine and Engine Cooling / Engine

    Defect, in the NHTSA record
    Mack Trucks Inc. (Mack) is recalling certain model year 2014-2015 CXU, 2010-2015 LEU, and 2011-2015 MRU vehicles manufactured with certain Cummins Westport Model ISL G and ISX12 G engines. Condensation in the intake manifold may freeze during cold weather conditions and interfere with the proper operation of the intake manifold pressure sensor.
    Consequence, in the NHTSA record
    The improper operation of the sensor could induce elevated exhaust temperatures or flames from the exhaust pipe, increasing the risk of a vehicle fire or burn injury to a person near the exhaust pipe.
    Remedy, in the NHTSA record
    Cummins and Cummins Westport will notify owners, and authorized Cummins service facilities will upload a new ECM calibration, free of charge. The recall began on March 12, 2014. Customers may contact Mack at 1-336-393-2000 or Cummins Inc. at 1-800-343-7357. Mack's number for this recall is SC0377.

    Report filed by Mack Trucks, Inc.. Manufacturer campaign number SC0377.

The campaign number opens the NHTSA record. Each quotation is the text of the NHTSA recall file.

Recall campaign: One recall in the NHTSA recall file, with one campaign number. A campaign can name many makes, models and model years.

Units: The number of vehicles or products that a recall can include. The manufacturer or the firm reports the number to the agency.

Complaints by component

The NHTSA complaint file has no complaint for this model year.

Investigations

The NHTSA investigation file has no investigation that names this model year.

Investigation: A study of a possible safety defect by the NHTSA Office of Defects Investigation. An investigation with no closing date in the NHTSA file is open.

Other model years

The number under each year is the number of recall campaigns.

  1. 20085
  2. 20097
  3. 20107
  4. 201110
  5. 20129
  6. 20136
  7. 20147
  8. 20153
  9. 20162
  10. 20171
  11. 20181

A year without a link has fewer than 2 campaigns and fewer than 25 complaints. It has no page.

Official channels

Cite this page

Recall Register. 2015 Mack MRU: recalls and complaints. https://recallregister.com/vehicle/mack/mru/2015/. Source: NHTSA Office of Defects Investigation, recall, complaint and investigation files. Data through .

Sources

Source
NHTSA Office of Defects Investigation
Licence
US government work, public domain
Recall file through
29 Sep 2026
Complaint file through
15 May 2019
First complaint in the file
1 Jan 1995
Manufacturer in the recall file
Mack Trucks, Inc.

The NHTSA record is the authority. A complaint count is the number of different complaint numbers for the make, the model and the model year. How the register is made. Report an error.

Questions

How many units are in the recall campaigns for the 2015 Mack MRU?
4,200 units in 3 campaigns. A campaign can name other models and model years, and its units include them.
How many recall campaigns does the Mack MRU have for all model years?
NHTSA lists 18 recall campaigns for the Mack MRU, model years 2008 to 2018. 3 of them name the 2015 model year.
Is an NHTSA investigation of the 2015 Mack MRU open?
The NHTSA investigation file has no investigation that names this model year.