2025 Mack Pioneer Pr (4) | 2026 Mack Pioneer Pr (4) — Equipment: mechanical
Published November 20, 2025 · Recall initiated: November 20, 2025
Summary
NHTSA records recall 25V801000, published November 20, 2025. Recalling firm: Mack Trucks, Inc.; 2025 Mack Pioneer Pr (4) | 2026 Mack Pioneer Pr (4) — Equipment: mechanical.
What's the hazard
Mack Trucks, Inc. (Mack) is recalling certain 2025-2026 Pioneer vehicles. The load lock clamps, located on the back of the cab, may loosen and cause the load lock bars to become unsecured.
What to do
Dealers will replace the load lock clamps, free of charge. Owner notification letters were mailed December 18, 2026. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0489. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning November 27, 2025.
Get an email if MACK has another recall
Free. We only write when there's a new recall that matches. Unsubscribe in one click.
Recall details
- Brand
- MACK
- Model
- PIONEER PR (4)
- Manufacturer
- Mack Trucks, Inc.
- Lot
- 2025 MACK PIONEER PR (4) | 2026 MACK PIONEER PR (4)
- Risk classification
- V
- Country
- US
Related recalls
- NHTSA2027 Mack Anthem An (4) | 2027 Mack Pioneer Pr (4) — Exterior lightingAugust 7, 2026
- NHTSA2025 Mack Terrapro (Te) — Steering: critical fastenersAugust 6, 2026
- NHTSA2026 Mack Granite (Gr) | 2027 Mack Pinnacle (Pi/Pn) | 2026 Mack Pioneer Pr (4) | 2027 Mack Pioneer Pr (4) |May 29, 2026
- NHTSA2027 Mack Pioneer Pr (4) | 2027 Mack Anthem An (4) | 2026 Mack Anthem An (4) | 2026 Mack Pioneer Pr (4) | 2025April 23, 2026
- NHTSA2025 Mcneilus Volterra Zsl | 2024 Mcneilus Volterra Zsl — EquipmentNovember 20, 2025
- NHTSA2024 Volvo Vnl (4) | 2025 Volvo Vnl (4) | 2026 Volvo Vnl (4) — Equipment: mechanicalNovember 20, 2025
Questions about this recall
Was 2025 Mack Pioneer Pr (4) | 2026 Mack Pioneer Pr (4) — Equipment: mechanical recalled?
Yes. NHTSA published recall 25V801000 on November 20, 2025. Reported hazard: Mack Trucks, Inc. (Mack) is recalling certain 2025-2026 Pioneer vehicles. The load lock clamps, located on the back of the cab, may loosen and cause the load lock bars to become unsecured.
What should I do if I have this product?
Dealers will replace the load lock clamps, free of charge. Owner notification letters were mailed December 18, 2026. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0489. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning November 27, 2025.
How do I know if my unit is part of the recall?
Compare your product details with the notice. Brand: MACK. Model: PIONEER PR (4).