2015 MACK MRU — Problems, Recalls & Safety Data
N/A
Safety Rating
0
Owner Complaints
3
Recalls
9
Service Bulletins
0
Investigations
Overview of the 2015 MACK MRU
The 2015 MACK MRU has received a total of 0 safety complaints filed with the National Highway Traffic Safety Administration (NHTSA). There have been 3 recall campaigns affecting this vehicle, covering issues with SERVICE BRAKES, AIR:ANTILOCK, ENGINE AND ENGINE COOLING:ENGINE. 9 technical service bulletins have been issued by Mack Trucks, Inc. for this model year.
Recalls for the 2015 MACK MRU
NHTSA has recorded 3 recalls for the 2015 MACK MRU, potentially affecting up to 4,200 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 →Recall 15V275000 — ENGINE AND ENGINE COOLING:ENGINE
| 2,124 vehicles affected
Defect: 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...
Consequence: If engine oil comes into contact with a hot surface, there could be an increased risk of a fire.
Remedy: 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...
View full details →Recall 14V137000 — ENGINE AND ENGINE COOLING:ENGINE
| 1,934 vehicles affected
Defect: 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: 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: 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...
View full details →Owner Complaints for the 2015 MACK MRU
No complaints have been filed with NHTSA for the 2015 MACK MRU.
Safety Rating for the 2015 MACK MRU
NHTSA has not yet tested the 2015 MACK MRU in its New Car Assessment Program.
Technical Service Bulletins for the 2015 MACK MRU
Mack Trucks, Inc. has issued 9 technical service bulletins (TSBs) for the 2015 MACK MRU. TSBs are notices sent by manufacturers to their dealers describing a known issue and the recommended repair procedure.
M-392-004B — UNKNOWN OR OTHER
Radio, Replacement (revised from FSB 392-004)
KC-73 — EQUIPMENT
Mack Chassis - Disabling The Driver ID; Removing the Driver ID Prompt - US07 To US14+OBD16 Emissions, Model Years 2008 To 2017
K18901293 — ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR
Mack Chassis - Diagnostic Trouble Code ( DTC ) P226D Intermittently Lighting The Malfunction Indicator Lamp ( MIL ) - US14+OBD15 And US14+OBD16 Emissions (Non-Common Rail Fuel System), Commonly Model Years 2015 and 2016
K18901293 — EQUIPMENT
Mack Chassis - Diagnostic Trouble Code ( DTC ) P226D Intermittently Lighting The Malfunction Indicator Lamp ( MIL ) - US14+OBD15 And US14+OBD16 Emissions (Non-Common Rail Fuel System), Commonly Model Years 2015 and 2016
K50433055 — STRUCTURE
Mack Chassis - Diagnostic Trouble Code ( DTC ) P0471 Illuminating The Malfunction Indicator Lamp (MIL) - US17+OBD16 (GHG17, Common Rail Fuel System) Chassis ONLY
FSB284-066 — ELECTRICAL SYSTEM
ECM and ACM, Reprogramming, OBD2014
FSB652-005 — SUSPENSION
On some MACK CHU, CXU, GU, TD, LEU, LR, and MRU trucks built from 01/14/2013 and 01/20/2017, the V-Stay carrier bolt hole in the mRide suspension may become stripped, causing the V-Stay torque rod bolt to pull free from the carrier housing.
FSB 233 006 Mack — EQUIPMENT
Engine fuel filters (part number 21380521) with week number date codes ?15_33? (August 10, 2015) through ?15_39? (September 27, 2015) should not be installed on an engine without first being inspected. The week number date code is marked on the outside of the filter, the number on top is the...
FSB 884-007 — SEAT BELTS
ON CERTAIN MACK MRU TRUCKS MANUFACTURED FROM 06/04/2014 THROUGH 06/18/2014, THE DRIVER SIDE SEAT BELT BOLTS MAY LOOSEN OVER TIME AND POTENTIALLY CAUSE THE SEAT BELT TO DETACH FROM THE SEAT FRAME, CAB WALL, AND CAB FLOOR. DURING SEAT BELT INSTALLATION, THE TOOL USED TO INSTALL THE SEAT BELT BOLTS...
NHTSA Investigations for the 2015 MACK MRU
There are no NHTSA defect investigations on record for this vehicle.
Other Model Years of the MACK MRU
- 2010 MACK MRU — 0 complaints
- 2011 MACK MRU — 0 complaints
- 2012 MACK MRU — 0 complaints
- 2013 MACK MRU — 0 complaints
- 2014 MACK MRU — 0 complaints
- 2015 MACK MRU (current)
- 2016 MACK MRU — 0 complaints
- 2017 MACK MRU — 0 complaints
- 2018 MACK MRU — 1 complaint
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