Mack Granite recalls

• Wheels#2026265May 29, 2026

  71 units affected

  Issue: On certain trucks, the wheel nut(s) could loosen and cause the wheel(s) to detach. Safety Risk: A wheel separation could cause a loss of control and increase the risk of a crash. Additionally, a wheel that separates could create a road hazard for others. Corrective Actions: To reduce the safety risk, Mack advises you not to drive your truck until the recall repairs have been completed. Mack will notify owners by mail and advise you to contact a dealership to arrange for an inspection of the wheels and hubs. Any damaged parts will be replaced.

• Lights And Instruments#2025607November 3, 2025

  658 units affected

  Issue: On certain trucks, the LED headlights may not have been manufactured properly. As a result, the headlights could stop working. Safety Risk: A loss of headlights can reduce visibility and increase the risk of a crash. Corrective Actions: Mack will notify owners by mail and advise you to take your truck to a dealership to inspect and, if necessary, replace the headlights.

• Seats And Restraints#2025531October 6, 2025

  578 units affected

  Issue: On certain trucks, the passenger-side seat belt anchor may not have been secured to the floor properly. As a result, the seat belt could detach in a crash. Note: For the MD model, this recall also affects certain 2025 model year MD electric vehicles. Safety Risk: A seat belt that detaches could increase the risk of injury in a crash. Corrective Actions: Mack will notify owners by mail and advise you to take your truck to a dealership to reinforce the passenger-side seat belt anchor.

• Brakes#2024632October 24, 2024

  6,855 units affected

  Issue: On certain trucks, poor signal strength could cause the electronic control unit (ECU) to stop working or not to work properly. As a result, some safety systems may not work, including the antilock braking system, automatic traction control, electronic stability control, active cruise control and the collision mitigation system. Safety Risks: Vehicle safety systems that don't work correctly could increase the risk of a crash. Corrective Actions: Mack will notify owners by mail and advise you to take your truck to a dealership to reprogram the ECU software.

• Seats And Restraints#2024435July 31, 2024

  23 units affected

  Issue : On certain trucks, the bolts that attach the driver and front passenger seat and seat belts may not have been tightened properly. As a result, the seat(s) and/or seat belt(s) could loosen or detach in a crash. Note: This recall only affects trucks equipped with optional RollTek seats. Safety Risk: A seat and/or seat belt that loosens or detaches could increase the risk of injury in a crash. Corrective Action: Mack will notify owners by mail and advise you to take your truck to a dealership to replace the driver and front passenger seat and seat belt bolts.

• Brakes#2023628November 22, 2023

  39 units affected

  Issue: Certain trucks may have been built without a quick release valve for the rear brakes. As a result, the rear brakes may release too slowly when the brake pedal is released. Canadian regulations require air brakes to release within a certain time. Safety Risk: Rear brakes that release too slowly could increase the risk of a crash. Corrective Actions: Mack will notify owners by mail and advise you to take your truck to a dealership to inspect and, if necessary, install the quick release valves.

• Lights And Instruments#2023474August 25, 2023

  5,280 units affected

  Issue: On certain trucks, the front turn signals may not be visible from certain angles. As a result, the trucks don't meet the requirements of the Canadian regulations. Safety Risk: Turn signals that aren't visible from certain angles may cause a person not to recognize when a driver intends to turn or change lanes. This could increase the risk of a crash. Corrective Actions: Mack will notify owners by mail and advise you to take your truck to a dealership to install additional front turn signals.

• Lights And Instruments#2022361June 15, 2022

  4,304 units affected

  Issue: On certain trucks, some controls are not identified with the required symbol(s) or word(s). Specifically, the identifications for the HVAC fan control, the position side marker light control, the master lighting switch control and the turn signal control may be missing or mislabeled. Canadian regulations require the use of certain symbols and words for controls. This can help to avoid driver confusion. Safety Risk: These small errors do not affect safety or the function of the controls. Corrective Actions: This is not a recall. Mack has made changes to ensure that the controls for all new trucks are identified with the required symbol(s) and word(s).

• Steering#2022295June 7, 2022

  258 units affected

  Issue: On certain trucks, the steering gear may not have been assembled correctly. As a result, the steering gear could break and cause a loss of steering. Safety Risk: A loss of steering control could create the risk of a crash. Corrective Actions: Mack will notify owners by mail and instruct you to take your truck to a dealership to inspect the serial number on the steering gear, and replace it, if necessary.

• Lights And Instruments#2021616October 6, 2021

  119 units affected

  Issue: On certain trucks, the tail lamps do not turn on when the daytime running lamps (DRLs) are on. New Canadian regulations require that, if a vehicle has dash backlighting, the low beam headlamps and tail lamps must automatically switch on when it is dark or the tail lamps must stay on at all times. Safety Risk: Driving without tail lamps in low light conditions could make the truck less visible and increase the risk of a crash. Corrective Actions: Mack will notify owners by mail and instruct you to take your truck to a dealer to update the vehicle software.

• Wheels#2021343June 2, 2021

  84 units affected

  Issue: On certain trucks, the hubcaps may be defective and could come loose or detach while driving. Safety Risk: A hubcap that detaches from the truck could create a road hazard for others. Corrective Actions: Mack will notify owners by mail and instruct you to take your truck to a dealer to remove the hubcaps.

• Lights And Instruments#2021124March 9, 2021

  4,883 units affected

  Issue: On certain trucks, when the manual override is used to switch off the daytime running lamps (DRLs), the lights may not turn on again when you start driving. Canadian regulations require that if DRLs are manually turned off, they must turn on again when you start driving. Safety Risk: Driving without daytime running lights could make the vehicle less visible to others and increase the risk of a crash. Corrective Actions: Mack will notify owners by mail and instruct you to take your truck to a dealer to update the vehicle software.

• Structure#2020551November 12, 2020

  91 units affected

  Issue: On certain trucks, the welds that attach the trailer hitch may crack due to improper welding. As a result, the hitch could detach from the truck while towing a trailer. Note: This recall only affects certain trucks with trailer hitches installed by Commercial Truck Equipment. Safety Risk: A trailer that detaches from a truck could create a risk of a crash. Corrective Actions: Commercial Truck Equipment will notify owners by mail and instruct you to take your truck to a dealer to inspect the trailer hitch and repair or replace it, as necessary. You should stop using the trailer hitch until the inspection and repair have been completed.

• Visual System#2019037January 25, 2019

  761 units affected

  Issue: On certain vehicles, the down-view mirror may detach from the passenger’s door. Safety Risk: A mirror that falls from the vehicle could strike another vehicle or pedestrian. This may create the risk of an injury or crash. Corrective Actions: The company will notify owners by mail. Owners will be instructed to take their vehicle to a dealer to secure the mirror. The dealer will add additional fasteners and a reinforcement plate as needed.

• Tires#2018641November 21, 2018

  73 units affected

  Certain trucks were equipped with Bridgestone M864, M860A or M854 wide-base tires, size 425/65R22.5, that may not conform to the endurance testing requirements of Canada Motor Vehicle Safety Standard (CMVSS) 119 - Tires for vehicles other than passenger cars. A manufacturing problem could cause a bulge or blister to be present in the sidewall of the tires. Over time, this could cause deterioration of the tire’s structure and lead to a sudden tire failure that may increase the risk of a crash causing property damage and/or personal injury. Correction: Dealers will inspect and replace affected tires as necessary.

• Lights And Instruments#2018605November 2, 2018

  98 units affected

  Certain vehicles equipped with a snowplow preparation kit may fail to comply with the requirements of Canada Motor Vehicle Safety Standard (CMVSS) 108 - Lighting System and Retroreflective Devices. The snowplow headlamps can be turned on without other exterior lights, and the high beam indicator does not work when the snowplow high beams are turned on, which is contrary to the requirements of the standard. This could allow the vehicle to be operated with the snowplow headlamps on and marker and tail lamps off, making the vehicle harder to see and potentially increasing the risk of a crash causing injury and/or damage to property. Correction: Dealers will update vehicle software to correct the non-compliance.

Canadian data updated August 24, 2026