2013 MACK MRU — Problems, Recalls & Safety Data
N/A
Safety Rating
0
Owner Complaints
6
Recalls
13
Service Bulletins
0
Investigations
Overview of the 2013 MACK MRU
The 2013 MACK MRU has received a total of 0 safety complaints filed with the National Highway Traffic Safety Administration (NHTSA). There have been 6 recall campaigns affecting this vehicle, covering issues with SERVICE BRAKES, AIR:ANTILOCK, ENGINE AND ENGINE COOLING:ENGINE, EXTERIOR LIGHTING:TURN SIGNAL:FLASHER UNIT. 13 technical service bulletins have been issued by Mack Trucks, Inc. for this model year.
Recalls for the 2013 MACK MRU
NHTSA has recorded 6 recalls for the 2013 MACK MRU, potentially affecting up to 54,605 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 14V208000 — EXTERIOR LIGHTING:TURN SIGNAL:FLASHER UNIT
| 44,047 vehicles affected
Defect: Mack Trucks Inc. (Mack) is recalling certain model year 2010-2014 CHU, CXU, and MRU, 2007 CT and CV, 2008-2014 GU, and 2011-2014 LEU, and TD trucks manufactured February 28, 2006, through November 8, 2013, and equipped Hamsar Electronic Flasher. The hazard warning lights may fail.
Consequence: A failure of the hazard warning lights could reduce the trucks visibility, increasing the risk of a crash.
Remedy: Mack will notify owners, and dealers will replace the electronic flasher unit, free of charge. The recall will begin by mid-June 2014. Interim letters went out to owners on June 23, 2014. The recall began on July 25, 2014. Owners...
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 →Recall 13V492000 — POWER TRAIN:AXLE HUBS
| 1,155 vehicles affected
Defect: Mack Trucks is recalling certain model year 2013-2014 CHU, CXU, GU, LEU, and MRU vehicles manufactured with pro-torque axle spindle nuts from August 28, 2012, through August 16, 2013. The pro-torque nut may not have been installed correctly, which may result in a loosening of the nut.
Consequence: If the nut comes loose, the hub assembly may separate from the vehicle, increasing the risk of a crash.
Remedy: Mack Trucks will notify owners, and dealers will inspect and repair the vehicles, as necessary, free of charge. The recall began on November 12, 2013. Mack's recall number is SC0371. Owners may contact Mack Trucks at 1-336-393-2000.
View full details →Recall 13V195000 — SERVICE BRAKES
| 5,203 vehicles affected
Defect: Mack Trucks, Inc. is recalling certain model year 2013-2014 CHU, CXU, GU, MRU, and LEU trucks manufactured July 16, 2012, through march 18, 2013 and equipped with drum brakes. The clevis pin for the brake slack adjuster may be missing a cotter pin. If the cotter pin is not installed, the clevis pin may loosen and fall out causing a...
Consequence: A loss of brake function at one wheel will lead to increased stopping distances and pulling to the left or right when braking, which may increase the risk of a crash.
Remedy: Mack Trucks, Inc. will notify owners, and dealers will inspect the brake slack adjusters and install the brake hardware, as necessary, free of charge. An interim was mailed to owners on June 20, 2013. A second notice was mailed to...
View full details →Owner Complaints for the 2013 MACK MRU
No complaints have been filed with NHTSA for the 2013 MACK MRU.
Safety Rating for the 2013 MACK MRU
NHTSA has not yet tested the 2013 MACK MRU in its New Car Assessment Program.
Technical Service Bulletins for the 2013 MACK MRU
Mack Trucks, Inc. has issued 13 technical service bulletins (TSBs) for the 2013 MACK MRU. TSBs are notices sent by manufacturers to their dealers describing a known issue and the recommended repair procedure.
CBR 820-9 202601 — ENGINE
CBR - Mack Chassis - Engine Brake Only Works With The Brake Pedal, No Function During Cruise. US07 And Newer Emissions, Model Year 2008 And Newer.
M-392-004B — EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.
Radio, Replacement (revised from FSB 392-004)
K17028411 — EQUIPMENT
Electronic Control Unit (ECU) Replacement (EMS, VECU, TECU, LCM) - Programming (Conversion Kit) Requirements When Installing An ECU With A Newer Part Number - US04 To US10 Chassis (9-Pin Diagnostic Connector)
K08315540 — ENGINE AND ENGINE COOLING
Mack Chassis - LEU, MRU, LR - Frequent Requests For Regeneration, ( Hourly To Daily ); Possible High Soot Load Warnings And Fault Codes Or Accelerated Soot Accumulation - Previously Tech Tip TT-020-2015 - US10 And Newer (Includes GHG17/US17, Common Rail) Emissions, Common Model Years 2011 And Newer
K54101221 — EQUIPMENT ADAPTIVE/MOBILITY
** Tech Tip ** TT - 001 - 2015 - How And When To Diagnose A P0402 Code
K95422063 — EQUIPMENT ADAPTIVE/MOBILITY
Mack Chassis - Diagnostic Trouble Code ( DTC ) P2459 Lighting The Malfunction Indicator Lamp ( MIL ); Possible Frequent Regeneration Requests - OBD15 And US14+OBD16 (Non-Common Rail) Chassis
K18412228 — ENGINE
Mack Chassis - Telematics Gateway ( TGW, MID 142 ) Losing Communication With The Instrument Cluster ( IC ) - Counts Of Fault Code (FC) MID 140 PSID 239 FMI 12 Data Link, MID 142 Faulty Device or Component Logging, Possibly Following Engine Start; TGW Possibly Missing From Product Information...
K84262037 — UNKNOWN OR OTHER
Issues with the Charge Air System may result in the presence of oil in the Charge Air Cooler ( CAC ) or intake piping.
PI 0862 — EQUIPMENT ADAPTIVE/MOBILITY
V-Stay Rod Cover, Replacement. Some MACK GU, MRU, LEU trucks built from 03/19/2012 to 08/30/2015 and equipped with mRide suspensions may Inadvertently lose the v-stay rod cover (part number 21896762) from the v-stay rod.
FSB-284-061 — ENGINE
MACK TRUCK: SHOULD REPROGRAMMED ENGINE ECU AND AFTERTREATMENT CONTROL MODULE (ACM) DUE TO PREMIUM TECH TOOL EXPERIENCE AN ERROR CODE 38 FOR SCR OVERTEMP AND ENGINE ECU SOFTWARE NEEDS CHECKING FOR ANY TROUBLESHOOTING IS PERFORMED. MODEL 2013-15 CHU, CXU, GU, LEU, MRU, TD. *PE
Showing 10 of 13 technical service bulletins.
NHTSA Investigations for the 2013 MACK MRU
There are no NHTSA defect investigations on record for this vehicle.
Other Model Years of the MACK MRU
- 2008 MACK MRU — 0 complaints
- 2009 MACK MRU — 0 complaints
- 2010 MACK MRU — 0 complaints
- 2011 MACK MRU — 0 complaints
- 2012 MACK MRU — 0 complaints
- 2013 MACK MRU (current)
- 2014 MACK MRU — 0 complaints
- 2015 MACK MRU — 0 complaints
- 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