NHTSA recall 23V899000
A recall listed here may apply to a vehicle of this year, make and model. Only the manufacturer can say whether it applies to one vehicle: check the VIN with the official lookups.
| Published by | NHTSA (United States) |
|---|---|
| Campaign number | 23V899000 |
| Manufacturer's number | SC0457 |
| Manufacturer | Mack Trucks, Inc. |
| Reported | 2023-12-26 |
| Owners notified | 2024-02-09 |
| Component | STEERING |
| Units potentially affected | 284 |
| Part numbers | 23851030, 21129326,23851046, 23851052 |
| Report | Quarterly report 8, for 2025 quarter 4 |
|---|---|
| Filed with NHTSA | 2026-01-05 |
| Vehicles in the campaign | 284 |
| Reported remedied | 207 (72%) |
| Reported unreachable | 0 |
| Reported removed | 0 |
These are the manufacturer's totals for the whole campaign at the end of 2025 quarter 4, as filed with NHTSA. They do not say whether one vehicle has been remedied: check the VIN with the official lookups. The reports are from data as of 2026-10-19.
What is wrong
Mack Trucks, Inc. (Mack) is recalling certain 2024 Anthem, Pinnacle, and Terrapro vehicles. The steering gear assemblies may have been assembled incorrectly with fewer recirculating balls than are required, which may result in a loss of steering control.
What can happen
A loss of steering control increases the risk of a crash.
The remedy
Dealers will inspect and replace the defective gears as necessary, free of charge. Owner notification letters were mailed February 9, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0457.
Notes
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.
| 2024 MACK ANTHEM (AN) | Listed as a series or trim of this model. |
|---|---|
| 2024 MACK PINNACLE (PI/PN) | Listed as a series or trim of this model. |
| 2024 MACK TERRAPRO (TE) | Listed as a series or trim of this model. |
A vehicle with no link is not in this site's catalog, which covers cars, multipurpose vehicles and trucks by model year. The campaign is from data as of 2026-10-19.
Bulletins for the same vehicles and component
| S3284 202408 | 2024-09-04. Service campaign. Service Campaign: Mack trucks has determined that certain AN, GR, and PI models were built using the incorrect power steering cooler hose clamps. |
|---|---|
| S3949 202406 | 2024-07-03. Service campaign. SC - Steering Stub Shaft Hardware Replacement |
| CBR-2375 202405 | 2024-06-04. Service bulletin. CBR: ZF/TRW Steering Gear Side Cover Leak |
| S3949 202404 | 2024-05-01. Service bulletin. Service Campaign: Steering Stub Shaft Hardware Replacement |
| S3857 202402 | 2024-03-06. Service bulletin. Service Campaign - MMD Suspension Bracket Torque. |
| S3275 | 2023-07-06. Service bulletin. Campaign - Mack trucks has determined that certain AN, GR, and PI models were built using the incorrect power steering cooler hose clamps. |
A bulletin is the manufacturer's note to its dealers. It is not part of this recall.