Mack Trucks

Up to 513 vehicles

Marker lights that fail to illuminate can reduce visibility, increasing the risk of a crash.

Covers: 2027 Mack Pioneer PR (4), 2027 Mack Anthem AN (4)

Up to 341 vehicles

A loose steering gearbox can result in a loss of steering, increasing the risk of a crash.

Covers: 2025 Mack Terrapro (TE)

Up to 2,772 vehicles

A loss of anti-lock brakes and electronic stability control increases the risk of a crash or injury.

Covers: 2027 Mack Anthem AN (4), 2026 Mack Pioneer PR (4), 2026 Mack Anthem AN (4), 2025 Mack Pioneer PR (4), 2027 Mack Pioneer PR (4)

Up to 86 vehicles

Turn signals that do not function properly may fail to indicate the driver's intention to change vehicle direction, increasing the risk of a crash.

Covers: 2025 Mack Pioneer PR (4), 2026 Mack Pioneer PR (4), 2027 Mack Pioneer PR (4), 2027 Mack Anthem AN (4)

Up to 775 vehicles

Starting the vehicle while in gear may cause unexpected vehicle movement, increasing the risk of a crash or injury.

Covers: 2024 Mack Terrapro (TE), 2025 Mack Terrapro (TE), 2026 Mack Terrapro (TE), 2027 Mack Terrapro (TE), 2022 Mack Terrapro (TE), 2023 Mack Terrapro (TE)

Up to 679 vehicles

Overheated brakes may cause a tire blowout or fire, increasing the risk of a crash.

Covers: 2010 Mack Granite (GU), 2011 Mack Granite (GU), 2015 Mack Granite (GU), 2012 Mack Granite (GU), 2013 Mack Granite (GU), 2014 Mack Granite (GU), 2016 Mack Granite (GU)

Up to 247 vehicles

High beam headlights that do not switch to low beam as intended can reduce visibility for oncoming traffic, increasing the risk of a crash.

Covers: 2026 Mack Anthem AN (4), 2025 Mack Pioneer PR (4), 2026 Mack Pioneer PR (4)

Up to 46 vehicles

A loose or unsecured load lock bar can result in a loss of cargo, creating a road hazard and increasing the risk of a crash.

Covers: 2026 Mack Pioneer PR (4), 2025 Mack Pioneer PR (4)

Up to 6,541 vehicles

Loss of headlight illumination can reduce visibility, increasing the risk of a crash.

Covers: 2024 Mack Granite (GR), 2025 Mack Granite (GR)

Up to 15,841 vehicles

An improperly welded seat belt anchorage bracket can detach during a crash, increasing the risk of injury.

Covers: 2024 Mack Granite (GR), 2025 Mack Granite (GR), 2024 Mack MD, 2025 Mack Anthem (AN), 2025 Mack MD, 2024 Mack MD (Electric), 2025 Mack Pinnacle (PI/PN), 2019 Mack Anthem (AN) and 14 more

Up to 156 vehicles

Trailer tail lights and turn signals that do not illuminate as intended can reduce visibility to other drivers, increasing the risk of a crash.

Covers: 2025 Mack Pioneer PR (4), 2026 Mack Pioneer PR (4)

Up to 32 vehicles

A loss of steering control increases the risk of a crash.

Covers: 2025 Mack Anthem (AN), 2026 Mack Pioneer PR (4), 2025 Mack Pioneer PR (4)

Up to 36 vehicles

Reduced brake function can extend the distance required to stop, increasing the risk of a crash.

Covers: 2026 Mack Granite GR (4)

Up to 148 vehicles

An engine that does not return to idle quickly enough can cause a loss of vehicle control, increasing the risk of a crash.

Covers: 2024 Mack MD (Electric), 2025 Mack MD (Electric), 2026 Mack MD (Electric)

Up to 8 vehicles

An electrical short can cause an engine stall, increasing the risk of a crash. An electrical short can also cause the cables to overheat, increasing the risk of a fire.

Covers: 2025 Mack Granite (GR), 2025 Mack Anthem (AN)

Up to 5 vehicles

Incorrect weight rating information on the door can result in overloading the axles, increasing the risk of a crash.

Covers: 2026 Mack Granite GR (4)

Up to 42 vehicles

An incorrectly routed seat belt assembly may not restrain an occupant as intended, increasing the risk of injury in a crash.

Covers: 2026 Mack MD

Up to 3 vehicles

A detached idler gear can damage the engine, resulting in a stall and increasing the risk of a crash or injury.

Covers: 2025 Mack Anthem (AN)

Up to 17 vehicles

A short circuit increases the risk of a fire.

Covers: 2023 Mack Lrbe (Electric), 2022 Mack Lrbe (Electric), 2024 Mack Lrbe (Electric), 2025 Mack Lrbe (Electric)

Up to 142 vehicles

Driving without a functioning anti-lock brake system may result in the trailer not braking as intended, increasing the risk of a crash.

Covers: 2021 Mack Terrapro (TE), 2020 Mack Terrapro (TE), 2019 Mack Terrapro (TE), 2023 Mack Terrapro (TE), 2024 Mack Terrapro (TE), 2025 Mack Terrapro (TE), 2022 Mack Terrapro (TE), 2010 Mack MRU and 8 more

Up to 21 vehicles

Insufficient air volume can reduce braking performance and increase the risk of a crash.

Covers: 2024 Mack Pinnacle (PI/PN), 2025 Mack Pinnacle (PI/PN)

Up to 59,338 vehicles

Safety systems that depend on the ECU (Automatic Traction Control, ABS, Electronic Stability Control, Active Cruise Control, and Collison Mitigation System) may have diminished or lost functionality, increasing the risk of a crash.

Covers: 2022 Mack Pinnacle (PI/PN), 2021 Mack Terrapro (TE), 2020 Mack Terrapro (TE), 2024 Mack Pinnacle (PI/PN), 2020 Mack Pinnacle (PI/PN), 2023 Mack Terrapro (TE), 2024 Mack Terrapro (TE), 2023 Mack Pinnacle (PI/PN) and 17 more

Up to 49 vehicles

Insufficient tires can fail, increasing the risk of a crash.

Covers: 2021 Mack Granite (GR), 2020 Mack Granite (GR), 2019 Mack Granite (GR), 2023 Mack Granite (GR), 2022 Mack Granite (GR), 2018 Mack Granite (GU), 2025 Mack Granite (GR), 2024 Mack Granite (GR)

Up to 242 vehicles

An improperly tightened seat pedestal and seat belt attachment may not restrain the occupant as intended, increasing their risk of injury during a crash.

Covers: 2024 Mack Pinnacle (PI/PN), 2025 Mack Pinnacle (PI/PN), 2025 Mack Granite (GR), 2025 Mack Anthem (AN), 2024 Mack Granite (GR), 2024 Mack Anthem (AN)

Up to 59 vehicles

The ball stud can separate from the vehicle becoming a road hazard, increasing the risk of a crash.

Covers: 2025 Mack LR, 2025 Mack Granite (GR), 2025 Mack Pinnacle (PI/PN)

Up to 26 vehicles

An overloaded vehicle can increase the risk of a crash.

Covers: 2024 Mack MD, 2025 Mack MD, 2024 Mack Terrapro (TE)

Up to 106 vehicles

An inoperative methane detector can fail to detect a gas leak, increasing the risk of a fire or injury.

Covers: 2024 Mack LR, 2025 Mack LR

Up to 23 vehicles

An overloaded vehicle can increase the risk of a crash.

Covers: 2024 Mack Granite (GR)

Up to 117 vehicles

The park brake light may indicate that the park brake is applied when it is not, possibly resulting in a vehicle roll away and increasing the risk of a crash.

Covers: 2024 Mack MD

Up to 10 vehicles

Insufficient air volume can reduce braking performance and increase the risk of a crash.

Covers: 2024 Mack Granite (GR), 2023 Mack Granite (GR), 2022 Mack Granite (GR)

Up to 284 vehicles

A loss of steering control increases the risk of a crash.

Covers: 2024 Mack Pinnacle (PI), 2024 Mack Terrapro (TE), 2024 Mack Anthem (AN)

Up to 5 vehicles

An improperly installed wheel end hub assembly can leak oil, causing the axle spindles to loosen or fracture and increasing the risk of a crash.

Covers: 2024 Mack Granite (GR)

Up to 650 vehicles

An engine that does not return to idle quickly enough can cause a loss of vehicle control, increasing the risk of a crash.

Covers: 2023 Mack Anthem (AN), 2023 Mack Granite (GR), 2024 Mack LR, 2023 Mack LR, 2023 Mack Terrapro (TE), 2024 Mack Terrapro (TE), 2024 Mack Granite (GR), 2024 Mack Anthem (AN)

Up to 12 vehicles

A rear lifting bracket that detaches while the engine is being lifted can result in the engine falling or swinging, increasing the risk of injury.

Covers: 2024 Mack Terrapro (TE), 2024 Mack Granite (GR)

Up to 13 vehicles

Driving with an inoperative electronic stability control system can increase the risk of a crash.

Covers: 2024 Mack Anthem (AN), 2024 Mack Pinnacle (PI)

Up to 395 vehicles

Loose steering gear fasteners may result in a loss of vehicle control, increasing the risk of a crash.

Covers: 2024 Mack MD

Up to 27,418 vehicles

Low turn signal visibility may not alert other drivers to a turning vehicle, increasing the risk of a crash.

Covers: 2015 Mack Granite (GU), 2019 Mack Granite (GU), 2021 Mack Granite (GU), 2015 Mack Granite (GR), 2016 Mack Granite (GU), 2022 Mack Granite (GR), 2016 Mack Granite (GR), 2020 Mack Granite (GU) and 10 more

Up to 19 vehicles

The pedestal may buckle during a crash, preventing the passenger seat from properly restraining a passenger.

Covers: 2024 Mack LR

Up to 11 vehicles

An electrical short circuit increases the risk of a fire.

Covers: 2023 Mack Lrbe, 2022 Mack Lrbe

Up to 204 vehicles

Inoperative windshield wipers can reduce visibility, increasing the risk of a crash.

Covers: 2024 Mack LR, 2023 Mack LR

Up to 47 vehicles

A relay that fails in the closed position will continue to power the cabin heater, overheating the relay and increasing the risk of a fire.

Covers: 2023 Mack Lrbe, 2019 Mack Lrbe, 2022 Mack Lrbe, 2020 Mack Lrbe, 2021 Mack Lrbe

Up to 5 vehicles

A vehicle with an inoperative horn cannot alert other drivers, increasing the risk of a crash.

Covers: 2024 Mack LR

Up to 4 vehicles

A battery short circuit increases the risk of a fire.

Covers: 2023 Mack Lrbe, 2022 Mack Lrbe

Up to 17 vehicles

Steer axle assembly separation can result in a loss of vehicle control, increasing the risk of a crash.

Covers: 2023 Mack Granite (GR)

Up to 43 vehicles

A coolant heater that overheats can increase the risk of fire.

Covers: 2022 Mack Lrbe, 2021 Mack Lrbe, 2019 Mack Lrbe, 2023 Mack Lrbe

Up to 1 vehicle

A battery short circuit increases the risk of a fire.

Covers: 2021 Mack LR Electric

Up to 150 vehicles

An unexpected engine shut down can increase the risk of a crash.

Covers: 2023 Mack MD

Up to 5,644 vehicles

A fractured steering gear can cause a loss of steering control, increasing the risk of a crash.

Covers: 2022 Mack LR, 2021 Mack Anthem (AN), 2022 Mack Anthem (AN), 2021 Mack LR, 2022 Mack Terrapro (TE), 2021 Mack Granite (GR), 2022 Mack Granite (GR), 2021 Mack TE and 2 more

Up to 14 vehicles

Insufficient air volume can reduce braking performance and increase the risk of a crash.

Covers: 2022 Mack Granite (GR), 2023 Mack Granite (GR)

Up to 33 vehicles

Loss of power steering assist increases the risk of a crash.

Covers: 2023 Mack LR Electric, 2021 Mack LR Electric, 2022 Mack LR Electric

Up to 20,668 vehicles

The unexpected release of the parking brake may allow the vehicle to rollaway, increasing the risk of a crash.

Covers: 2017 Mack Terrapro (MRU), 2016 Mack Terrapro (MRU), 2012 Mack Terrapro (MRU), 2013 Mack Terrapro (MRU), 2014 Mack Terrapro (MRU), 2015 Mack Terrapro (MRU), 2019 Mack Terrapro (MRU), 2018 Mack Terrapro (MRU) and 8 more

Up to 79 vehicles

A loss of power steering assist increases the risk of a crash.

Covers: 2021 Mack Granite (GR), 2021 Mack LR

Up to 60 vehicles

Loose suspension bolts can detach, possibly resulting in a loss of vehicle control and increasing the risk of a crash.

Covers: 2022 Mack MD

Up to 124 vehicles

Inoperative rear axle brakes can increase the distance required to stop, increasing the risk of a crash.

Covers: 2021 Mack Granite (GR), 2021 Mack LR, 2021 Mack TE

Up to 8 vehicles

The short screws can cause the hardware to separate from the suspension system and become a road hazard, increasing the risk of a crash or injury.

Covers: 2021 Mack Granite (GU), 2020 Mack Granite (GU)

Up to 307 vehicles

A separated hubcap can create a road hazard, increasing the risk of a crash.

Covers: 2021 Mack Granite (GR), 2021 Mack Granite (GU), 2021 Mack Pinnacle (PI), 2021 Mack Anthem (AN), 2022 Mack Pinnacle (CHU), 2022 Mack Granite (GR), 2021 Mack Pinnacle (CHU), 2021 Mack Pinnacle (CXU) and 4 more

Up to 272 vehicles

The internal bearings may fail without sufficient lubrication, causing steering lock-up and increasing the risk of a crash.

Covers: 2020 Mack LR, 2019 Mack LR

Up to 557 vehicles

A vehicle that drifts out of its lane increases the risk of a crash.

Covers: 2021 Mack Granite (GR), 2021 Mack Granite (GU), 2018 Mack Pinnacle (PI), 2018 Mack Anthem (AN), 2018 Mack Granite (GR), 2020 Mack Anthem (AN), 2020 Mack Pinnacle (CXU), 2020 Mack Granite (GR) and 22 more