Mack recalls — Page 2
- Mack circuit connecting the horn button to the horn is missing, making the horn inoperative. 2024 Mack LR
- Mack coolant line in the high voltage battery pack may not be fully seated and locked, which can result in the loss of coolant and an electrical short circuit. 2022 Mack Lrbe (Electric)
- Mack front-drive steer axle fasteners may not have been tightened sufficiently and could come loose, resulting in a complete separation of the axle assembly joints. 2023 Mack Granite
- Mack cabin heater relay may fail, causing the coolant heater to overheat. 2019 Mack Lrbe (Electric)
- Mack mack Trucks, Inc. 2021 Mack LR
- Mack engine control module (ECM) may experience an internal short-circuit, which can result in an unexpected engine shut down. 2023 Mack MD
- Mack steering gears may have been assembled incorrectly, which can cause the gear to fracture. 2021–2022 Mack Anthem, Granite, LR +3 more
- Mack air tanks have an insufficient volume of air for the brake system. 2022 Mack Granite
- Mack during certain driving maneuvers, the power steering system may lose pressure, causing a loss of power steering assist. 2021 Mack LR
- Mack brake control valve air leak into the attached exhaust hose can create excessive back pressure, causing the parking brake to release unexpectedly. 2008–2019 Mack Mru, Te, Terrapro
- Mack machining defect may cause pressure to build in the power steering pump and break the shaft seal, resulting in a loss of power steering assist. 2021 Mack Granite, LR
- Mack cotter pin that retains the brake pedal clevis pin may not have been properly installed, which could result in an unsecured brake pedal. 2020 Mack MD DO NOT DRIVE
- Mack rear drive axle may have the incorrect type of brake cam installed, which could result in inoperative rear axle brakes. 2021 Mack Granite, LR, Te
- Mack spring hanger brackets on the front suspension may have loose bolts. 2022 Mack MD
- Mack lower rear pivot cap screws may not be long enough to sufficiently engage the locking feature of the corresponding nuts. 2020 Mack Granite
- Mack hubcap compression spring can cause the hubcap to separate. 2021 Mack Anthem, Granite, Pinnacle
- Mack steering transfer case may have an insufficient amount of oil. 2019 Mack LR
- Mack vehicles may not stay in their lane at certain speeds. 2018 Mack Anthem, Granite, Pinnacle
- Mack headlamps may not be properly aimed, possibly reducing the driver's visibility. 2019 Mack Te
- Mack castle nuts and cotter pins used to connect the steering drag link to the pitman arm and steering arm may have not been correctly installed, potentially causing separation of the drag link. 2020 Mack Anthem, Granite, Pinnacle
- Mack axles missed the heat treating operation during manufacturing, reducing their strength and possibly causing the axle beams to fracture. 2015 Mack Pinnacle
- Mack conspicuity reflectors at the back of the cab may be blocked by the exhaust system. 2020 Mack Anthem, Pinnacle
- Mack mack Trucks Inc. 2014–2018 Mack Anthem, Pinnacle
- Mack passenger side door down view mirror may detach from the door. 2019 Mack Anthem, Granite, Pinnacle
- Mack internal component in the clutch assembly may fail, possibly resulting in unintended vehicle movement. 2018 Mack Anthem, Pinnacle
- Mack sidewall steel body cords may be exposed, possibly causing unexpected, rapid air loss while driving. 2019 Mack Granite, LR, Te
- Mack pinch bolt on the upper steering shaft may not have been tightened, possibly resulting in the steering shaft separating and causing a loss of steering. 2019 Mack Anthem, Granite, Pinnacle
- Mack snow plow headlights can be turned on without other exterior lights, and high beam indicator will not work when the snow plow high beams are on. 2019 Mack Granite
- Mack fifth wheel may have an outboard slider bracket that is too narrow, possibly allowing the trailer to separate from the tractor. 2019 Mack Anthem
- Mack electrical overload condition may cause the light control module (LCM) to fail, resulting in the loss of the exterior lighting, interior dashboard lighting, and the windshield wipers. 2018 Mack Anthem, Granite, Pinnacle
- Mack castellated nut and cotter pin on the steer axles may not have been properly torqued, allowing the tie rod to loosen within the steer axle. 2016 Mack Pinnacle
- Mack alternator cable may be insufficiently thick to handle the current, and, as a result, may overheat. 2011–2015 Mack LR, Terrapro
- Mack affected vehicles were built with front wheel hubs that cannot support the gross axle weight rating of the front axle. 2012–2013 Mack Granite, Pinnacle, Titan (TD)
- Mack tires on the affected vehicles may have cured improperly causing an incomplete adhesion, possibly resulting in a partial tread separation. 2017 Mack Pinnacle
- Mack are equipped with certain Meritor FF967 non-drive front steer axles that may have been incorrectly heat treated. 2013 Mack Pinnacle
- Mack bolt connecting the upper steering shaft to the lower steering shaft may not properly secure the upper steering shaft, which can lead to separation of the steering shaft. 2016 Mack Titan (TD) DO NOT DRIVE
- Mack affected trucks may be missing a roll pin to secure the upper steering yoke to the steering shaft. 2016 Mack Granite, Terrapro
- Mack cap nut that retains the interaxle driveshaft yoke to the rear axle input shaft may loosen. 2012–2015 Mack Granite, LR, Pinnacle +2 more
- Mack due to a brake imbalance between the steer and drive axle brakes, the rear brakes may overheat. 2010 Mack Granite
- Mack affected trucks have engines with a turbocharger oil supply line that may contact or interfere with the turbocharger inlet elbow, clean air intake clamp, or the air fuel control tube, and result in an oil leak. 2010 Mack Granite, LR, Terrapro
- Mack affected axles are equipped with hex nuts on the flange yoke that may not have been properly tightened. 2014 Mack Granite
- Mack affected trucks are equipped with Fontaine Ultra LT Fifth Wheel connectors, which, due to cumulative damage to the fifth wheel and its locking mechanism, have a locking mechanism that may fail to operate or to properly engage. 2011 Mack Pinnacle
- Mack affected trucks may be equipped with an air brake system reservoir that does not have a sufficient volume. 2011 Mack Granite
- Mack in the affected vehicles, the brake chambers may have been incorrectly mounted resulting in internal contamination of the air brake calipers. 2013 Mack Pinnacle
- Mack chassis harness and air lines may not be properly clipped to the crossmember, which can allow the cables and air lines to fall and get twisted in the driveline. 2009–2014 Mack Granite, Pinnacle, Titan
- Mack 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 oil to come into contact with hot surfaces. 2011–2015 Mack LR6, Leu, Mru
- Mack affected vehicles have a switch to release the fifth wheel latch that may invertently be pushed and cause the trailer to unintentionally disconnect from the tractor after the parking brake has been released. 2012 Mack Pinnacle
- Mack these trucks may be equipped with an 88 liter air reservoir for the brakes instead of a 96 liter air reservoir. 2014 Mack Pinnacle
- Mack 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. 2015 Mack Leu
- Mack affected actuators may have an incomplete attachment of the internal rubber diaphragm to the actuation mechanism of the parking brake section of the Life Seal actuator. 2015–2016 Mack Cxu, Leu, Pinnacle