2021–2022 Mack Anthem (an), 2021–2022 Mack Granite (GR), 2021–2022 Mack LR and 3 other models Recall: Steering gears may have been assembled incorrectly, which can cause the…
NHTSA campaign 22V401000 · Steering · filed Jun 7, 2022 · verified Jul 30, 2026
The defect
Mack Trucks, Inc. (Mack) is recalling certain 2021-22 Granite, Anthem, LR, Pinnacle, and Terrapro tractor trailers. The steering gears may have been assembled incorrectly, which can cause the gear to fracture.
The risk
A fractured steering gear can cause a loss of steering control, increasing the risk of a crash.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
Dealers will replace the steering gear, free of charge. Owner notification letters were mailed on July 29, 2022. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0437.
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
Affected vehicles
Related recalls
More Mack Anthem (an) recalls
- 2026 Mack Anthem (an) and 4 other models — Wheel lug nuts may loosen and allow the wheel to detach
- 2019–2025 Mack Anthem (an) and 4 other models — Seat belt anchorage bracket may be improperly welded
- 2025 Mack Anthem (an) and 1 other model — Dynamic steering and oversteer guidance feature may…
- 2025 Mack Anthem (an) and 1 other model — Power cables may have been improperly routed, which can…
- 2025 Mack Anthem (an) — Idler gear bracket fasteners may have been improperly…
Other campaigns involving Mack vehicles
Source: NHTSA recall database, campaign 22V401000 (manufacturer number SC0437). Data last verified Jul 30, 2026.