NHTSA recall 23V713000
NHTSA advises: do not drive until the repair is done.
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 | 23V713000 |
| Manufacturer's number | SC0451 |
| Manufacturer | Mack Trucks, Inc. |
| Reported | 2023-10-24 |
| Owners notified | 2023-10-26 |
| Component | STEERING |
| Units potentially affected | 47 |
| Part numbers | 22132225 |
| Report | Quarterly report 7, for 2025 quarter 2 |
|---|---|
| Filed with NHTSA | 2025-07-07 |
| Vehicles in the campaign | 47 |
| Reported remedied | 47 (100%) |
| Reported unreachable | 0 |
| Reported removed | 0 |
These are the manufacturer's totals for the whole campaign at the end of 2025 quarter 2, 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 LR vehicles. The fasteners that connect the power steering assist cylinder to steering arm may be loose or missing.
What can happen
The power steering assist cylinder may separate from the steering arm, causing a loss of vehicle control and increasing the risk of a crash.
The remedy
Owners are advised not to drive their vehicles until the repair has been performed. Dealers will inspect and tighten the steering gear fasteners and install a new cotter pin, free of charge. Owner notification letters are expected to be mailed December 15, 2023. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0451.
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 LR |
|---|
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
| CBR 2440-3 202601 | 2026-02-03. Service bulletin. CBR - Mack Chassis - Model LR - Linear Assist Cylinder Repair. |
|---|---|
| S3857 202402 | 2024-03-06. Service bulletin. Service Campaign - MMD Suspension Bracket Torque. |
| S3815 202401 | 2024-02-02. Service bulletin. Service Campaign: LR Power Steering Assist Cylinder Castle Nut 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.