Mack recalls
Models
- Granite 52
- Pinnacle 52
- Anthem 29
- Leu 17
- LR 17
- Mru 16
- Pioneer 15
- Terrapro 14
- Chu 13
- MD 12
- Cxu 10
- Gu 7
- CV 6
- Te 6
- Lrbe (Electric) 5
- MR 5
- LE 3
- RD 3
- TD 3
- Titan (TD) 3
- Mack intake and grille bezels may detach from the vehicle. 2025–2026 Mack Anthem, Pioneer
- Mack inaccurate axle load calculations may cause reduced braking performance while transporting smoothbore tanker trailers. 2026 Mack Anthem, Pioneer
- Mack steering gearbox fasteners may loosen. 2025 Mack Terrapro
- Mack center roof marker lights may fail to illuminate. 2027 Mack Anthem, Pioneer
- Mack wheel lug nuts may loosen and allow the wheel to detach. 2026 Mack Anthem, Granite, Pinnacle +1 more DO NOT DRIVE
- Mack rear brake modulators may have unprotected electrical connectors that can short circuit and lead to a loss of the anti-lock brake system (ABS) and electronic stability control (ESC). 2025–2026 Mack Anthem, Pioneer
- Mack trailer turn signals may not function properly. 2025–2027 Mack Anthem, Pioneer
- Mack engine control unit (ECU) software may allow the engine to start when the transmission is not in Neutral. 2022 Mack Terrapro
- Mack vehicles remedied under Recall 15V804 (SC0398) may have had incorrect parts installed during subsequent repairs. 2010 Mack Granite
- Mack load lock clamps, located on the back of the cab, may loosen and cause the load lock bars to become unsecured. 2025 Mack Pioneer
- Mack automatic high beams (AHB) may not switch to low beam headlights as intended. 2025–2026 Mack Anthem, Pioneer
- Mack LED headlights may fail. 2024 Mack Granite
- Mack seat belt anchorage bracket may be improperly welded. 2019–2025 Mack Anthem, Granite, MD +1 more
- Mack when towing a trailer, the trailer lights may fail to illuminate due to an improperly manufactured body control module. 2025 Mack Pioneer
- Mack dynamic steering and oversteer guidance feature may malfunction and cause a loss of steering control. 2025 Mack Anthem, Pioneer
- Mack brake drum and steer axle combination are incompatible, which may cause a loss of brake function. 2026 Mack Granite
- Mack when the Controller Area Network (CAN) communications are interrupted, the throttle signal from the electro mobility control unit may retain the last known throttle setting, and the engine will not return to idle as intended. 2024 Mack MD
- Mack power cables may have been improperly routed, which can cause an electrical short. 2025 Mack Anthem, Granite
- Mack incorrect drive axle brake drums were installed, resulting in an incorrect load rating on the door jamb label. 2026 Mack Granite
- Mack center bench seat belt assembly may be routed incorrectly. 2026 Mack MD
- Mack idler gear bracket fasteners may have been improperly tightened, allowing the idler gear to detach from the engine. 2025 Mack Anthem
- Mack high voltage batteries may have loose hardware that can fall inside the battery pack and create a short circuit. 2022 Mack Lrbe (Electric)
- Mack vehicles are missing the anti-lock brake (ABS) warning light and circuitry that controls the anti-lock brake function for an attached trailer. 2010–2019 Mack Mru, Terrapro
- Mack air tanks have an insufficient volume of air for the brake system. 2024–2025 Mack Pinnacle, Pioneer
- Mack electrical noise and low signal to the power line carrier may cause the ECU to incorrectly process commands or stop working. 2020–2025 Mack Anthem, Granite, Pinnacle +2 more
- Mack tires may not have been DOT tested and confirmed to be sufficient for the vehicles. 2018 Mack Granite
- Mack seat pedestal and seat belt attachment may have been improperly tightened. 2024–2025 Mack Anthem, Granite, Pinnacle +1 more
- Mack tie rod assembly ball stud could have been improperly heat treated and can fail. 2025 Mack Granite, LR, Pioneer
- Mack incorrectly assembled high voltage connector could prevent the mechanical connector lock from properly engaging, allowing the high voltage cable to loosen. 2024 Mack MD DO NOT DRIVE
- Mack tie rod assemblies may contain an improperly heat-treated ball stud that can fail, resulting in a sudden loss of steering control. 2025 Mack Anthem, Pioneer DO NOT DRIVE
- Mack drag link may contain an improperly heat-treated ball stud that can fail, resulting in a sudden loss of steering control. 2025 Mack Anthem, Granite, Te DO NOT DRIVE
- Mack battery management system software may cause the high-voltage battery to shut down, which can result in a sudden loss of steering control and drive power. 2024 Mack MD DO NOT DRIVE
- Mack gross Axle Weight Rating (gawr) listed on the vehicle certification label is incorrect, which can allow the vehicle to be overloaded. 2024 Mack MD, Terrapro
- Mack methane detector may be inoperative due to a missing fuse. 2024 Mack LR
- Mack park brake light may indicate the incorrect brake status due to an incorrect park brake pressure switch. 2024 Mack MD
- Mack gross Axle Weight Rating (gawr) listed on the vehicle certification label is incorrect, which can allow the vehicle to be overloaded. 2024 Mack Granite
- Mack air tanks have an insufficient volume of air for the brake system. 2022 Mack Granite
- Mack steering gear assemblies may have been assembled incorrectly with fewer recirculating balls than are required, which may result in a loss of steering control. 2024 Mack Anthem, Pinnacle, Terrapro
- Mack bearing journals may not be fully seated in the steering knuckle assembly, preventing the proper installation of the wheel end hub assembly. 2024 Mack Granite
- Mack engine may not return to idle within 2 seconds if the accelerator pedal position sensor becomes disconnected. 2023 Mack Anthem, Granite, LR +1 more
- Mack steering wheel attachment bolt may loosen and separate from the steering shaft, causing the steering wheel to detach. 2024 Mack MD DO NOT DRIVE
- Mack rear lifting bracket that attaches to the engine cylinder head may be insufficiently secured, which can allow it to detach. 2024 Mack Granite, Terrapro
- Mack fasteners that connect the power steering assist cylinder to steering arm may be loose or missing. 2024 Mack LR DO NOT DRIVE
- Mack software programming error may cause the electronic stability control (ESC) to be inoperative. 2024 Mack Anthem, Pinnacle
- Mack steering gear fasteners may not be properly tightened. 2024 Mack MD
- Mack turn signals may be positioned incorrectly, reducing their visibility. 2015 Mack Granite
- Mack reinforcing floor welds may be missing from around the passenger seat pedestal, reducing floor strength. 2024 Mack LR
- Mack rivnut threaded inserts inside the high-voltage battery may be over-tightened and break, which could result in a short circuit. 2022 Mack Lrbe (Electric)
- Mack wiper arm retention nuts may be loose, stripping, and causing the windshield wipers to fail. 2023 Mack LR
- Mack power cables that connect to the windscreen heater relay may have a loose connection and cause the relay to fail. 2019 Mack Lrbe (Electric)