Recall 24V424 affects 7 2025 Mack Anthem (An) and Pioneer Pr (4) trucks for tie rod failure. Do not drive. Mack dealer repair is free.
A sudden loss of steering control increases the risk of a crash, and there is no warning before it happens. Do not drive this vehicle, even for short trips. If it must move, ask the dealer about towing. Repair is free at any franchised Mack dealer.
Mack is recalling 7 2025 Anthem (An) and Pioneer Pr (4) trucks under recall 24V424 because tie rod assemblies contain an improperly heat-treated ball stud that can fail and cause a sudden loss of steering control. Do not drive these trucks until a Mack dealer completes the free repair.
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What's wrong?
The front tie rod assembly on a 2025 Mack Anthem (An) or Pioneer Pr (4) truck is part of the steering linkage at the front axle. It connects the steering system to the front wheels so both wheels turn together when the driver turns the wheel. A ball stud inside the tie rod end lets that linkage pivot while holding the steering connection in place.
On the affected trucks, the ball stud inside the tie rod end was not heat-treated correctly. Heat treatment hardens the metal so it can handle steering loads. Because experimental ball studs were mixed into production parts, the stud can break under use. If that happens, the tie rod assembly loses its connection and the driver can suddenly lose steering control.
There is no warning sign before failure. The truck can steer normally until the ball stud fails, so the problem is not something an owner can confirm by feel, sound, or a dashboard light.
Who's affected?
The drive axle and tie rod are listed separately because the front axle assembly is tied to both the powertrain and steering systems.
| 2025 Mack Anthem (An) | drive axle |
|---|---|
| 2025 Mack Pioneer Pr (4) | drive axle |
| 2025 Mack Pioneer Pr (4) | tie rod (steering linkage) |
| 2025 Mack Anthem (An) | tie rod (steering linkage) |
| Units affected | 7 |
| Field incidents | NHTSA has logged no field incidents to date. |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether your specific truck is included.
What's the safety risk?
A sudden loss of steering control increases the risk of a crash, and there is no warning before it happens. Do not drive this vehicle, even for short trips. If it must move, ask the dealer about towing. Repair is free at any franchised Mack dealer.
What should I do?
- Check your VIN to confirm your 2025 Mack Anthem (An) or Pioneer Pr (4) truck is included in this recall.
- Do not drive the truck until the tie-rod inspection and any needed replacement are complete.
- Arrange a tow if the truck has to be moved to the dealer; do not drive it there yourself.
- Contact a franchised Mack dealer to schedule the free tie-rod inspection and replacement that addresses the ball stud that can fail and cause sudden loss of steering control.
- Bring the recall notice if Mack mailed one. If not, reference recall number 24V424 and Mack recall SC0466 when you call.
- Call Mack customer service at 1-800-866-1177 with questions about scheduling or moving the truck safely.
What happens at the repair
Do not drive the truck until this recall repair is complete. At the dealer, a Mack technician inspects the tie rod ends and replaces any tie rod ends with the defective ball stud condition. The recall repair is free, with parts and labor covered. If you already paid for a related tie rod end repair before the owner notice, Mack's standard reimbursement plan covers qualifying documented expenses. Bring repair invoices and payment records to the service desk, or contact Mack customer service to ask how to submit them.
| Reimbursement | Reimbursement available |
|---|
Timeline
| June 9, 2024 | NHTSA published the recall |
|---|---|
| June 12, 2024 | Dealer notification began |
| June 12, 2024 | Dealer notification ended |
| June 17, 2024 | Owner notification mailed |
| July 5, 2024 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 24V424?
Recall 24V424 covers 7 2025 Mack Anthem (An) and Pioneer Pr (4) trucks with tie rod assemblies that can contain an improperly heat-treated ball stud. If the ball stud fails, the driver can lose steering control. Mack dealers will inspect and replace the tie rod ends for free.
What should I do if my 2025 Mack Anthem (An) or Pioneer Pr (4) is on this recall?
Check your VIN to confirm your specific truck is included in recall 24V424. If it is, do not drive the truck until the dealer completes the remedy. Call a franchised Mack dealer, reference recall 24V424 or Mack recall SC0466, and ask about towing if the truck has to move.
Is the recall repair free?
Yes. Federal recall law requires Mack to repair the defect at no cost. A franchised Mack dealer will inspect the tie rod ends and replace them if required, free of charge.
What does do not drive mean for recall 24V424?
Do not drive the truck until the remedy is complete. This includes short trips to work, a shop, or a dealer. The concern is sudden steering loss from the tie rod assembly, so ask the Mack dealer about towing before moving the truck.
When were owners notified about this Mack recall?
Mack mailed owner notification letters on June 17, 2024. If you bought the truck used or never received a letter, check your VIN and call a franchised Mack dealer with recall 24V424 or Mack recall SC0466.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/24V424000 |
|---|---|
| Mack customer service | 1-800-866-1177 |
| NHTSA recall # | 24V424 |
| NHTSA recall # (full) | 24V424000 |
Source documents
-
Download Quarterly Report (PDF) - Download Recall Investigation Document (PDF) (PDF)
- Download Owner Notification Letter (PDF)
- Download Recall Acknowledgement (PDF)
- Download Recall Report (PDF)
- Download Owner Notice (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 20, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →