2024 Mack Terrapro (te) problems, complaints & recalls

2024 Mack Terrapro (te) recalls (7)

• Recall 26V139000Mar 11, 2026775 vehicles
  ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE

  Mack Trucks, Inc. (Mack) is recalling certain 2022-2027 TerraPro trucks. The engine control unit (ECU) software may allow the engine to start when the transmission is not in Neutral. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 102, "Transmission Shift Lever Sequence, Starter Interlock, and Transmission Braking Effect."

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

  Remedy: Dealers will update the ECU software, free of charge. Owner notification letters were mailed April 14, 2026. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0492. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov March 18, 2026.

• Recall 25V030000Jan 23, 2025142 vehicles
  SERVICE BRAKES, AIR:ANTILOCK

  Mack Trucks, Inc. (Mack) is recalling certain 2010-2018 MRU and 2019-2025 Terrapro towing vehicles. The vehicles are missing the anti-lock brake (ABS) warning light and circuitry that controls the anti-lock brake function for an attached trailer. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 121, "Air Brake Systems."

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

  Remedy: Dealers will add an ABS warning light and circuitry, free of charge. Owner notification letters were mailed April 28, 2025. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0474.

• Recall 24V792000Oct 23, 202459,338 vehicles
  ELECTRICAL SYSTEM:SOFTWARE · SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE

  Mack Trucks, Inc. (Mack) is recalling certain 2020-2025 Anthem, Granite, TerraPro and Pinnacle vehicles, equipped with Bendix EC80 Advanced Electronic Control Units (ECU). Electrical noise and low signal to the power line carrier may cause the ECU to incorrectly process commands or stop working.

  Risk: 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.

  Remedy: Dealers will reprogram the ECU software, free of charge. Owner notification letters were mailed December 9, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0472.

• Recall 24V333000May 14, 202426 vehicles
  EQUIPMENT:OTHER:LABELS

  Mack Trucks, Inc. (Mack) is recalling certain 2024-2025 MD and Terrapro vehicles. The Gross Axle Weight Rating (GAWR) listed on the vehicle certification label is incorrect, which can allow the vehicle to be overloaded. As such, these vehicles fail to comply with the requirements of 49 CFR Part 567, "Certification."

  Risk: An overloaded vehicle can increase the risk of a crash.

  Remedy: Dealers will remove and replace the label, free of charge. Owner notification letters were mailed May 28, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0463.

• Recall 23V899000Dec 26, 2023284 vehicles
  STEERING

  Mack Trucks, Inc. (Mack) is recalling certain 2024 Anthem, Pinnacle, and Terrapro vehicles. The steering gear assemblies may have been assembled incorrectly with fewer recirculating balls than are required, which may result in a loss of steering control.

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

  Remedy: Dealers will inspect and replace the defective gears as necessary, free of charge. Owner notification letters were mailed February 9, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0457.

• Recall 23V792000Nov 22, 2023650 vehicles
  VEHICLE SPEED CONTROL

  Mack Trucks, Inc. (Mack) is recalling certain 2023-2024 GR, AN, LR, and Terrapro vehicles. The engine may not return to idle within 2 seconds if the accelerator pedal position sensor becomes disconnected. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 124, "Accelerator Control Systems."

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

  Remedy: Mack will replace the throttle pedal and update the vehicle software, free of charge. Owner letters were mailed February 27, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0455.

• Recall 23V731000Oct 31, 202312 vehicles
  ENGINE

  Mack Trucks, Inc. (Mack) is recalling certain 2024 Granite and TerraPro vehicles. The rear lifting bracket that attaches to the engine cylinder head may be insufficiently secured, which can allow it to detach.

  Risk: 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.

  Remedy: Dealers will inspect and replace the flanged stud in the rear lifting bracket, as necessary, free of charge. Owner notification letters were mailed December 9, 2023. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0452.

Recent 2024 Mack Terrapro (te) complaints

Excerpts of the newest owner complaints, lightly cleaned of personal details. Complaints are unverified owner reports.

No narrative complaints on file.

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Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data, as of Oct 10, 2026. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology