2010 Mack Leu Recalls

Recalls on record Updated July 2026

The 2010 Mack Leu has 6 NHTSA recall campaigns affecting an estimated 11,926 vehicles. Recall repairs are always free at any authorized dealer. Last updated July 5, 2026.

Recall campaigns

ENGINE AND ENGINE COOLING 14V137000 2014-03-24 1,934 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…

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 number for this recall is SC0377.

ENGINE AND ENGINE COOLING 14V088000 2014-02-21 958 affected
Defect

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.

Consequence

If the exhaust pipe separates from the muffler on a twin-steer configured vehicle where the vehicle is operated from the right side, the operator may be exposed to carbon monoxide levels which may cause personal injury.

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.

ELECTRICAL SYSTEM 12V096000 2012-03-08 318 affected
Defect

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.

Consequence

IN THE EVENT OF AN ELECTRICAL SHORT, A VEHICLE FIRE MAY RESULT.

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 TRUCKS AT 1-800-866-1177.

SUSPENSION 12V067000 2012-02-21 4,032 affected
Defect

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.

Consequence

COMPLETE FRACTURES CAN CAUSE THE DRIVER TO LOSE CONTROL OF THE VEHICLE, INCREASING THE RISK OF A CRASH.

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 VEHICLES WITH CRACKED AXLE BEAMS. THIS SERVICE WILL BE PERFORMED FREE OF CHARGE. THE SAFETY RECALL BEGAN…

ELECTRICAL SYSTEM 11V212000 2011-04-01 3,763 affected
Defect

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.

Consequence

IN THE EVENT OF AN ELECTRICAL OVERAGE, THE FUSE THAT SHOULD PREVENT THE OVER CURRENT FROM REACHING THE MIRROR SWITCH CIRCUIT MAY FAIL, SUCH THAT THE MIRROR SWITCH CAN OVERHEAT. AN OVERHEATED SWITCH COULD CAUSE A VEHICLE FIRE.

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 BE PERFORMED FREE OF CHARGE. THE SAFETY RECALL BEGAN ON JUNE 30, 2011. OWNERS MAY CONTACT MACK…

SERVICE BRAKES, AIR 09V395000 2009-10-06 921 affected
Defect

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."

Consequence

FAILURE TO CONFORM TO THE REQUIREMENTS INCREASES THE APPLICATION AND RELEASE TIME OF THE SERVICE BRAKES, WHICH COULD POTENTIALLY RESULT IN A VEHICLE CRASH.

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.

Sources & methodology

Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL, FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 2010 Mack Leu as of July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page contains ads and affiliate links. Full methodology.