RECALLS — MACK MRU
Mack MRU recalls
Mack MRU model years 2010–2017 covered by at least one recall campaign. Pick a year to see the Canadian and U.S. campaigns side by side.
Choose a model year
U.S. NHTSA campaigns are listed on each year page, where they are queried live by model year. The Canadian list below covers every year together.
Transport Canada recalls
16- Electrical#2017216
40 units affected
Certain vehicles may have been built with an incorrectly sized alternator cable. This could potentially result in the cable overheating, which may increase the risk of a vehicle fire causing injury and/or damage to property. Correction: Dealers will replace the alternator cable.
- Powertrain#2016495
1,690 units affected
On certain vehicles, the cap nut that retains the interaxle driveshaft yoke to the rear axle input shaft may prematurely loosen. If the nut were to loosen and come off, the yoke could separate from the axle input shaft and cause the drive shaft to disconnect. A disconnected drive shaft would result in a loss of motive power, and create a road hazard, both of which could increase the risk of a crash causing injury and/or damage to property. Correction: Dealers will inspect the torque on the cap nut, and the nut will be replaced if the torque is found under specification. Note: This is an expansion of recall 2016-079.
- Powertrain#2016079
1,068 units affected
On certain vehicles, the cap nut that retains the interaxle driveshaft yoke to the rear axle input shaft may prematurely loosen. If the nut were to loosen and come off, the yoke could separate from the axle input shaft and cause the drive shaft to disconnect. A disconnected drive shaft would result in a loss of motive power, and create a road hazard, both of which could increase the risk of a crash causing injury and/or damage to property. Correction: Dealers will replace the cap nut, and inspect the threads on the input shaft. If the threads are damaged, the input shaft will be replaced.
- Steering#2016078
130 units affected
On certain vehicles, the roll pin may not have been installed on the upper yoke on the steering shaft during assembly. If the roll pin is missing, the steering shaft may disconnect from the yoke. Separation of the shaft from the yoke would result in complete loss of steering, increasing the risk of a crash causing injury and/or damage to property. Correction: Dealers will inspect the steering shaft, and replace it if the roll pin is found missing.
- Engine#2015500
364 units affected
On certain vehicles equipped with natural gas powered engines, the turbocharger oil supply line may make contact with or interfere with one or more of the following: the turbocharger inlet elbow, the OEM clean air intake clamp, or the air fuel control tube. The resulting contact or interference may damage the turbocharger oil supply line, possibly resulting in an oil leak. Oil leaking onto hot engine surfaces could increase the risk of a fire, and could increase the risk of injury and/or property damage. Correction: Dealers will replace the oil line.
- Engine#2015348
258 units affected
On certain vehicles equipped with Cummins Westport ISL-G engines, excessive engine crankcase pressure could cause the vent tube assembly elbow to detach from the breather. This could allow engine oil to come in contact with hot surfaces, increasing the risk of fire resulting in injury and/or damage to property. Correction: Dealers will install clamps at both ends of the elbow of the breather tube assembly and reprogram the Electronic Control Module (ECM) to improve diagnostic capabilities.
- Lights And Instruments#2014146
5,990 units affected
On certain vehicles, the directional/hazard signal flasher may fail. Actuation of the turn signal or hazard lights in this condition would cause them to remain illuminated and not flash as intended. As a result, drivers may not be able to clearly signal their intentions to turn, change lanes or warn others in an emergency situation. Correction: Dealers will replace the turn signal/hazard flasher module.
- Engine#2014090
157 units affected
On certain vehicles equipped with Cummins compressed natural gas engines, incorrect engine ECU programming could cause the exhaust system temperature to become elevated during cold weather operation. This could also cause flames to be emitted from the exhaust. As a result, nearby combustible material could be ignited, increasing the risk of a fire, injury and/or damage to property. Correction: Authorized Cummins service facilities will update software programming.
- Powertrain#2013346
61 units affected
On certain vehicles, spindle nuts may have been installed incorrectly and could loosen, possibly resulting in the hub, wheel and tire assembly separating from the vehicle. This could increase the risk of a crash causing injury and/or property damage. Also, should a wheel separate from the vehicle, it could pose a danger to nearby motorists or bystanders, which could result in injury and/or property damage. Correction: Dealers will inspect and repair vehicles as required.
- Brakes#2013161
906 units affected
On certain trucks, the cotter pin which retains the brake slack adjuster’s clevis pin may have been omitted during vehicle assembly. As a result, the clevis pin could loosen and fall out, causing a loss of brake function at the affected wheel. This could cause the vehicle to pull to one side under braking, or increase stopping distance, which could result in a crash causing property damage and/or personal injury. Correction: Dealers will verify cotter pin installation on each brake slack adjuster. Replacement cotter pins and/or clevis pins will be installed as needed.
- Wheels#2012346
On certain vehicles, the wheel rims may have been manufactured incorrectly and could fail. A wheel separating from the vehicle could cause a loss of control and a crash. In addition, the errant wheel assembly could strike a vehicle, stationary object, or a bystander. These issues could result in property damage and/or personal injury. Correction: Dealers will inspect and, if necessary, replace the wheel rims. Note: Further evaluation revealed that no Canadian vehicles are involved.
- Suspension#2012065
182 units affected
On certain trucks, the front axle beam may have been manufactured incorrectly. In certain application the load on the axle could allow stress cracks to form which, over time, may cause the axle beam to fail. This could result in a vehicle crash causing property damage and/or personal injury. Correction: Dealers will inspect and, if required, replace the axle beam.
- Steering#2011262
154 units affected
On certain trucks, the steering gear mounting bolts may not have received adequate tightening torque during vehicle assembly. Should the bolts loosen, the steering gear could separate from its mounting bracket, which may affect steering performance. A loss of steering control could result in a crash causing property damage and/or personal injury. Correction: Dealers will replace the steering gear mounting bolts.
- Powertrain#2011205
584 units affected
On certain trucks, the driveshaft may not have been welded correctly during the manufacturing process. This could allow the driveshaft to fracture along the length of the tube seam weld when torque is applied. The fractured tube can twist or sever, which could result in additional damage to the driveline, the vehicle to which it is attached, and any additional nearby components. Should the brake air lines become damaged, it could allow spring brake application, causing immediate brake lock-up. If this occurs while the vehicle is in motion, it could result in a crash. Also, failure of the driveshaft would result in lost vehicle propulsion which, in conjunction with traffic and road conditions, and the driver's reactions, could increase the risk of a crash. Either condition could result in property damage and/or personal injury. Correction: Dealers will replace the driveshaft assembly.
- Brakes#2011182
329 units affected
On certain vehicles, the slack adjuster housings may have been manufactured incorrectly, which could allow the housings to fracture and fail. As a result, the wheel brake to which the slack adjuster is attached would no longer function, which could increase vehicle stopping distances. Should a steer axle slack adjuster fail, it could also cause the vehicle to pull to one side during braking. Either problem could result in a crash causing property damage and/or personal injury. Correction: Dealers will inspect and, if necessary, replace the slack adjusters.
- Electrical#2011148
109 units affected
On certain vehicles, the rearview mirror switch (mounted on the dashboard) may overheat, causing the plastic to melt. An overheated switch may not allow rearview mirror remote adjustability and, as such, the driver may not have full use of the mirrors. In addition, excessive heat can cause smoke within the instrument panel, which could distract the vehicle operator and result in a crash causing property damage and/or personal injury. Correction: Dealers will inspect the rearview mirror switch and install a relay wiring harness. Switches that show signs of overheating will be replaced.
Canadian data updated August 24, 2026
Does this recall apply to my vehicle?
Matched by make, model, and model year. Many recalls affect only specific VIN ranges — confirm with your dealer using your full VIN.
What to do
Recall repairs are free at a franchised dealer in both countries. To confirm a recall applies to your specific vehicle, contact your manufacturer or dealer with your full VIN, or use the official channel:
- NHTSA recall lookup (search by VIN) — U.S. National Highway Traffic Safety Administration
- Defects and recalls database — Transport Canada