The 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.
The risk
Wheel detachment can cause a loss of vehicle control or create a road hazard, increasing the risk of a crash or injury.
The remedy
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.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Mack Anthem (an) | 2026 |
| Mack Anthem AN (4) | 2027 |
| Mack Granite (gr) | 2026, 2027 |
| Mack Pinnacle (pi/pn) | 2026, 2027 |
| Mack Pioneer PR (4) | 2026, 2027 |
Components: WHEELS:LUGS/NUTS/BOLTS/STUDS
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Mack Anthem (an) | 2026 | 0 | 1 |
| Mack Anthem AN (4) | 2027 | 0 | 6 |
| Mack Granite (gr) | 2026 | 0 | 1 |
| Mack Granite (gr) | 2027 | 0 | 1 |
| Mack Pinnacle (pi/pn) | 2026 | 0 | 1 |
| Mack Pinnacle (pi/pn) | 2027 | 0 | 1 |
| Mack Pioneer PR (4) | 2026 | 0 | 9 |
| Mack Pioneer PR (4) | 2027 | 0 | 6 |
Other wheels recalls in 2026
12 of the 666 recall campaigns reported to NHTSA in 2026 concerned the wheels; Mack Trucks, Inc. filed 118 campaigns in all.
| 26V693000 20 Oct 2026 | Hyundai Motor America |
| 26V682000 16 Oct 2026 | Porsche Cars North America, Inc. |
| 26V640000 2 Oct 2026 | Rosenbauer America |
| 26V456000 16 Jul 2026 | Chrysler (FCA US, LLC) |
| 26V350000 28 May 2026 | Volvo Trucks North America |
| 26V304000 14 May 2026 | General Motors, LLC |
| 26V255000 21 Apr 2026 | Tesla, Inc. |
| 26V235000 14 Apr 2026 | Ford Motor Company |
NHTSA recalls (public domain) · all recalls of 2026