Mack recalls 644 Granite, Pioneer, Anthem and Pinnacle trucks because wheel lug nuts may loosen
The wheel lug nuts on these trucks may loosen and let a wheel come off, which can cause a loss of vehicle control or leave a road hazard, raising the risk of a crash or injury.
What to do
Do not drive the vehicle until the repair is done. Dealers will inspect the wheel and hub surfaces, remove any masking material and replace worn parts for free; call Mack customer service at 1-800-866-1177 and cite recall number SC0495.
Look up your car to see every recall for its make, model and year.
Recall details
- Product
- Mack Granite (Gr), Pioneer Pr (4), Anthem (An) and 2 more 2026–2027
- Company
- Mack Trucks, Inc.
- Hazard
- Wheel detachment can cause a loss of vehicle control or create a road hazard, increasing the risk of a crash or injury.
- Units
- 644 vehicles
- Owner notification
- June 17, 2026
- Reported to NHTSA
- May 28, 2026
- Identifiers
- NHTSA campaign number: 26V351000
- Manufacturer campaign number: SC0495
- Model years: 2026–2027
The headline, summary and steps above are written in plain English from the official notice below. Identifiers are copied exactly as the agency published them. Always check the official notice before you act.
Official notice
The notice's own wording from NHTSA.
- Component
- WHEELS:LUGS/NUTS/BOLTS/STUDS
- Defect
- Mack Trucks, Inc. (Mack) is recalling certain 2026 Anthem (AN), 2026-2027 Pioneer PR (4), Pinnacle (PI/PN), Granite (GR), and 2027 Anthem AN (4) vehicles. The wheel lug nuts may loosen and allow the wheel to detach.
- Consequence
- Wheel detachment can cause a loss of vehicle control or create a road hazard, increasing the risk of a crash or injury.
- Corrective action
- Owners are advised not to drive their vehicles until the repair has been performed. Dealers will inspect the wheel and hub mating surfaces, remove any masking material, and replace any worn components if necessary, free of charge. Owner notification letters were mailed June 22, 2026. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0495. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on May 31, 2026.
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