Mack Leu Recalls & Complaints by Model Year
NHTSA lists 18 safety recalls and 0 owner complaints across 9 model years of the Mack Leu (2008–2016).
Pick your Mack Leu model year
| Model year | Recalls | Complaints |
|---|---|---|
| 2016 Mack Leu | 2 | 0 |
| 2015 Mack Leu | 5 | 0 |
| 2014 Mack Leu | 6 | 0 |
| 2013 Mack Leu | 6 | 0 |
| 2012 Mack Leu | 8 | 0 |
| 2011 Mack Leu | 8 | 0 |
| 2010 Mack Leu | 6 | 0 |
| 2009 Mack Leu | 4 | 0 |
| 2008 Mack Leu | 5 | 0 |
All Mack Leu recalls (18)
Every NHTSA safety campaign that lists a Mack Leu, most recent first, with the model years each one covers.
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Engine (engine and engine cooling)
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…
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…
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Latch (latches/locks/linkages)
Mack Trucks, Inc. (Mack) is recalling certain model year 2015 Mack LEU trucks manufactured March 31, 2014, to December 12, 2014. In the affected vehicles, a component of the door opening mechanism may be too short and as a result, the door may not be able to be opened by someone inside the truck.
Remedy: Mack will notify owners, and dealers will replace the inner door latches, free of charge. The recall began March 27, 2015. Owners may contact Mack customer service at 1-800-528-6586. Mack's number for this recall is…
Model years: 2015
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Actuator (parking brake)
Mack Trucks, Inc. (Mack) is recalling certain model year 2015 and 2016 CXU and LEU trucks manufactured May 20, 2014, to March 24, 2015, equipped with certain Haldex Life Seal Type 30/30 Long Stroke Air Brake Actuators manufactured from January 9, 2014, through February 3, 2015. The affected actuators may have an incomplete attachment of…
Remedy: Mack will notify owners, and dealers will inspect the brake actuator and replace, as necessary, free of charge. The recall began March 20, 2015. Owners may contact Mack customer service at 1-610-709-2131. Mack's number…
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Flasher unit (exterior lighting)
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.
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,…
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Engine (engine and engine cooling)
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…
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…
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Exhaust system (engine and engine cooling)
Mack Trucks, Inc. (Mack) is recalling certain model year 2010-2015 LEU vehicles manufactured May 14, 2009, through February 14, 2014, and equipped with a Cummins ISL engine. In the affected vehicles, the exhaust pipe may disconnect from the muffler/catalyst.
Remedy: Mack will notify owners. The recall began on April 21, 2014. The recall is expected to begin in late April 2014. Owners may contact Mack Trucks at 1-336-393-2000. Mack's number for this recall is SC0376.
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Axle hubs (power train)
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.
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…
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Service brakes
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 loss…
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…
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Electrical system
Mack Trucks is recalling certain model year 2008-2009 GU, LEU, and MRU trucks, manufactured from December 12, 2007, through May 8, 2008 and equipped with a certain focal mounted retarder control box. The control box may lose its electrical ground.
Remedy: All affected vehicles were sold to one customer that has already been notified. An official owner notification letter will be mailed to the one customer in early November 2012. Mack will replace the suspect control box…
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Alternator/generator/regulator (electrical system)
Mack is recalling certain model year 2010-2012 leu and model year 2011-2012 mru vehicles, manufactured from may 14, 2009, through october 31, 2011, and built to operate on compressed natural gas. On these vehicles the alternator ground cable runs directly to the starter, which defeats the circuit protection.
Remedy: Mack will notify owners, and dealers will relocate the alternator ground cable to the engine ground stud. This service will be performed free of charge. The recall began on april 19, 2012. Owners may contact mack…
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Suspension: front
Mack is recalling certain model year 2009-2011 mru and model year 2010-2011 leu vehicles, manufactured from january 1, 2009, through september 30, 2010 because the front axle may crack and fracture.
Remedy: Mack will notify owners, and replace the axle beams on affected vehicles when sufficient quantities are available. As an interim measure, a mag particle inspection will be provided to mitigate risk and identify…
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Driveline (power train)
Mack trucks is recalling certain model year 2012, chu, cxu, gu, mru, leu, and td trucks equipped with a meritor driveline. The tubing used to assemble the affected drivelines has a nonconforming seam weld with insufficient bonding of the material.
Remedy: Dealers will replace the drivelines free of charge. The safety recall began on july 25, 2011. Owners may contact mack trucks at 1-800-528-6586.
Model years: 2012
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Automatic (service brakes)
Mack trucks is recalling certain model year 2011-2012 chu, cxu, gu, leu and mru trucks manufactured from october 15, 2010, through january 31, 2011, and equipped with gunite automatic slack adjusters. Due to an incomplete "knitting" of the iron at the time of casting, inadequate structural integrity of the slack adjuster housing can…
Remedy: Mack trucks will notify owners and dealers will replace the subject slack adjusters free of charge. The safety recall began on august 24, 2011. Owners may contact mack trucks at 1-800-528-6586.
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Electrical system
Mack trucks is recalling certain model year 2008-2012 mru and leu heavy trucks manufactured from january 3, 2007, through february 3, 2011. The electrical circuitry in these vehicles may not provide adequate overcurrent protection.
Remedy: Dealers will install a relay harness to prevent the mirror switch from overheating. They will also inspect the mirror switch and if signs of overheating are shown, replace that switch. All inspections and repairs will…
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Service brakes, air
Mack trucks is recalling certain model year 2008-2010 trucks which fail to comply with the requirements of federal motor vehicle safety standard no. 121, "air brake systems."
Remedy: Dealers will rework the air system free of charge. The safety recall began o january 12, 2010. Owners may contact mack trucks at 1-800-528-6586.
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Quick release valve (service brakes)
Mack is recalling 338 model year 2009 mru and leu heavy duty trucks manufactured from august 20 through november 26, 2008 equipped with certain haldex quick release valves (qrv). The rubber diaphragm inside the qrv may experience delamination resulting in significant levels of air pressure leakage past and/or through the diaphragm, or…
Remedy: Mack will notify owners and repair the affected vehicle free of charge. The safety recall is expected to begin on or about july 13, 2009. Owners can contact mack toll-free at 1-800-866-1177.
Model years: 2009
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Cruise control (vehicle speed control)
On certain trucks, an incorrect switch may have been used.
Remedy: Dealers will inspect the switch and replace it if necessary. The recall began on january 2, 2008. Owners may contact mack on 1-800-528-6586.
Model years: 2008
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Exterior lighting
On certain trucks, the daytime running lights (drl) module may contain a suspect metal-oxide-semiconductor field effect transistor (mosfet) that could overheat.
Remedy: Dealers will replace the suspect drl module free of charge. The recall began on october 31, 2007. Owners may contact mack trucks at 1-800-528-6586.
Model years: 2008
Other Mack models
- Mack28 complaints
- Anthem (an)12 complaints
- Granite (gr)9 complaints
- CXU6127 complaints
- Ch6 complaints
- Gu6 complaints
- CH6005 complaints
- Cxu5 complaints
Source: NHTSA recall and complaint databases and EPA fuel economy data, October 2026. Complaint counts are owner reports to NHTSA, not verified defects. Recall counts are safety campaigns that list this model year; whether a particular car was already repaired depends on its VIN. How this data is compiled.