2020 Mack Anthem (an) problems, complaints & recalls

2020 Mack Anthem (an) recalls (6)

• Recall 25V666000Oct 6, 202515,841 vehicles
  SEAT BELTS:FRONT:ANCHORAGE

  Mack Trucks, Inc. (Mack) is recalling certain 2020-2025 Mack MD, 2019-2025 Anthem, Granite, 2024 MD Electric, and 2025 Pinnacle trucks equipped with a passenger bench seat. The seat belt anchorage bracket may be improperly welded. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 210, "Seat Belt Assembly Anchorages."

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

  Remedy: Dealers will install a reinforcement plate, free of charge. Owner letters were mailed January 21, 2026. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0485. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning October 13, 2025.

• 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 21V233000Apr 1, 2021557 vehicles
  ELECTRONIC STABILITY CONTROL (ESC):CONTROL MODULE:SOFTWARE

  Mack Trucks, Inc. (Mack) is recalling certain 2018-2022 Anthem (AN), Granite (GR/GU), and Pinnacle (CHU/CXU/PI) vehicles equipped with "camelback" rear suspension and electronic stability control. The vehicles may not stay in their lane at certain speeds. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 136, "Electronic Stability Control Systems on Heavy Vehicles."

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

  Remedy: Mack will notify owners, and dealers will reprogram the vehicle control units, free of charge. The recall began on April 21, 2021. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0423.

• Recall 19V896000Dec 16, 201980 vehicles
  STEERING:LINKAGES:DRAG:LINK:CONNECTION

  Mack Trucks, Inc. (Mack) is recalling certain 2020 Anthem (AN), Granite (GR), and Pinnacle (PI) vehicles. The 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.

  Risk: If the drag link separates, loss of steering control my occur, increasing the risk of a crash.

  Remedy: Mack will notify owners, and dealers will inspect the drag link attachment points, repairing them, as necessary, free of charge. The recall began January 14, 2020. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0420.

• Recall 19V209000Mar 18, 201943 vehicles
  EXTERIOR LIGHTING

  Mack Trucks, Inc. (Mack) is recalling certain 2020 Anthem and Pinnacle trucks. The conspicuity reflectors at the back of the cab may be blocked by the exhaust system. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 108, "Lamps, Reflective Devices, and Assoc. Equipment."

  Risk: If the reflectors are blocked, the vehicle's visibility to other drivers may be reduced, increasing the risk of crash.

  Remedy: Mack has notified owners, and dealers will install additional reflectors on the back of the cab, free of charge. The recall began April 10, 2019. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0418.

• Recall 19V054000Jan 24, 20193,906 vehicles
  VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR

  Mack Trucks, Inc. (Mack) is recalling certain 2019-2020 Mack Anthem, Granite, Pinnacle vehicles. The passenger side door down view mirror may detach from the door.

  Risk: If the mirror detaches from the door, the mirror may strike another vehicle or pedestrian, increasing the risk of injury or crash.

  Remedy: Mack will notify owners, and dealers will properly attach the mirror, free of charge. The recall began March 19, 2019. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0416.

Recent 2020 Mack Anthem (an) complaints

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

1. Filed Jul 21, 2026UTSuspensionTransmission & DrivetrainWheels & Tires

   This vehicle was sold to me as a new truck by Mountain West Truck Center in Salt Lake City, UT, with Federal Excise Tax paid accordingly. Prior to sale, the truck had undergone structural frame repair at Tec Equipment, an authorized Mack/Volvo dealer and repair facility in Reno, Nevada. During that repair, Huck bolts — permanent, engineered structural fasteners used to secure the frame and axle assemblies to OEM specification — were removed and replaced with non-equivalent…

   NHTSA complaint #11751705 · source
2. Filed Dec 29, 2025SCCrashTowedAirbagsSteering

   While driving on the Interstate I apparently lost control and hit a guardrail at approx 40-45mph. The impact stopped the truck causing severe damage to the vehicle the front right 1/2 of the vehicle including bumper, quarter panel with enough impact to break the front axle. I was found unconsious and spent 6 days in the hospital. I have fractures in my back and believe that possibly the airbag should have deployed? The vehicle is available at this time for inspection. I have…

   NHTSA complaint #11707679 · source
3. Filed Mar 9, 202035,000 miMALighting

   Led marker lamps are in a sealed unit which are not serviceable roadside, leading to low visibility under certain lighting and approach conditions to other vehicles. Also creates violations while on the road under section 393 as the driver and/ or road service vendor cannot service a part without returning to a dealer or stocking supplier. This is dangerous both in traveling and stationary positions.

   NHTSA complaint #11316944 · source

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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