2025 Mack Anthem (An) problems, complaints & recalls
Safety recalls (8)
Seat Belts:front:anchorage 2025-10-06 · campaign 25V666000 · 15,841 vehicles
Defect: 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.
Fix: 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.
Steering 2025-08-11 · campaign 25V521000 · 32 vehicles
Defect: Mack Trucks, Inc. (Mack) is recalling certain 2025 Anthem and 2025-2026 Pioneer vehicles. The dynamic steering and oversteer guidance feature may malfunction and cause a loss of steering control.
Risk: A loss of steering control increases the risk of a crash.
Fix: The oversteer guidance feature will be disabled through an over-the-air (OTA) update or by a dealer, free of charge. Owner notification letters were mailed August 21, 2025. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0483.
Electrical System:12v/24v/48v Battery 2025-06-10 · campaign 25V382000 · 8 vehicles
Defect: Mack Trucks, Inc. (Mack) is recalling certain 2025 Anthem and Granite vehicles. The power cables may have been improperly routed, which can cause an electrical short.
Risk: 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.
Fix: Dealers will re-route the power cables, free of charge. Owner notification letters were mailed June 16, 2025. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0480.
Engine And Engine Cooling:engine:diesel 2025-04-17 · campaign 25V256000 · 3 vehicles
Defect: Mack Trucks, Inc. (Mack) is recalling certain 2025 Anthem (AN) vehicles. The idler gear bracket fasteners may have been improperly tightened, allowing the idler gear to detach from the engine.
Risk: A detached idler gear can damage the engine, resulting in a stall and increasing the risk of a crash or injury.
Fix: Dealers will inspect and replace the turbo compound units as necessary, free of charge. Owner notification letters are expected to be mailed April 24, 2025. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0477.
Service Brakes, Hydraulic:antilock/Traction Control/Electronic Limited Slip:control Unit/Module 2024-10-23 · campaign 24V792000 · 59,338 vehicles
Defect: 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.
Fix: 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.
Seats:critical Fasteners 2024-07-30 · campaign 24V567000 · 242 vehicles
Defect: Mack Trucks, Inc. (Mack) is recalling certain 2024-2025 Anthem, Granite, and Pinnacle vehicles equipped with RollTek driver's seat assemblies. The seat pedestal and seat belt attachment may have been improperly tightened.
Risk: An improperly tightened seat pedestal and seat belt attachment may not restrain the occupant as intended, increasing their risk of injury during a crash.
Fix: Dealers will replace and tighten the seat pedestal and seat belt attachment bolts, free of charge. Owner notification letters were mailed September 16, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0469.
Power Train:axle Assembly 2024-06-09 · campaign 24V424000 · 7 vehicles ⚠ DO NOT DRIVE
Defect: Mack Trucks, Inc. (Mack) is recalling certain 2025 Anthem and Pinnacle trucks. The tie rod assemblies may contain an improperly heat-treated ball stud that can fail, resulting in a sudden loss of steering control.
Risk: A sudden loss of steering control increases the risk of a crash.
Fix: Owners are advised not to drive their vehicles until the remedy has been completed. Dealers will inspect and replace the tie rod ends as necessary, free of charge. Owner notification letters were mailed June 17, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0466.
Steering:linkages:drag:link:connection 2024-06-04 · campaign 24V398000 · 972 vehicles ⚠ DO NOT DRIVE
Defect: Mack Trucks, Inc. (Mack) is recalling certain 2025 Mack AN, GR, and TE trucks. The drag link may contain an improperly heat-treated ball stud that can fail, resulting in a sudden loss of steering control.
Risk: A sudden loss of steering control increases the risk of a crash.
Fix: Owners are advised not to drive their vehicles until the remedy has been completed. Dealers will inspect and replace the drag links, as necessary, free of charge. Owner notification letters were mailed June 20, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0465.
Service bulletins (66)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Power Train 2026-09-02 · TSB M-913-001 202609 · Service Bulletin/Repair Instructions
parker engine-mounted hydraulic pump service bulletin.
Electrical System 2026-08-10 · CBR 159 202608 · Service Bulletin/Repair Instructions
mack trucks equipped with a cummins engine - engine preheat icon does not illuminate in the instrument cluster (ic) during engine pre-heat (intake air heater) operation - vehicles with 2018instrument cluster update, model year2018 and newer
Engine 2026-08-05 · S4533 202608 · Service Campaign
mack trucks has determined that certain an model trucks equipped with an mp8 turbo compound (tc) engine may experience tc double idler gear failure due to incorrect bearing preload. tc units within this population are suspected to be affected, which could result in failure and potential engine damag
Engine 2026-06-22 · CBR-2592-1 202606 · Service Bulletin/Repair Instructions
the purpose of this cbr is to provide steps on how to correct a customer complaint of dtc p107b86 accompanied with intermittent loss of throttle.
Unknown Or Other 2026-04-30 · CBR 2575-1 202604 · Service Bulletin/Repair Instructions
cbr - mack chassis - dash panel cracking at mounting to biw.
Power Train 2026-04-09 · CBR 2573-1 202604 · Service Bulletin/Repair Instructions
cbr - mack chassis - through shaft bearing retainer breakage on mack carriers.
Showing the 6 most recent of 66 bulletins. Search all of them free at nhtsa.gov.
What owners report
No detailed complaint narratives on file.
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.