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Vehicle recall · NHTSA · Published August 11, 2025

MACK ANTHEM (AN) (2025) recall — Steering

Mack is recalling 2025 Anthem and 2025-2026 Pioneer trucks with potential steering loss. Owners must disable oversteer guidance via OTA update or dealer fix to prevent crash risk.

🇺🇸 NHTSA recall #25V521000VehicleMack ›
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No email on file for this recall — reach the company by phone or its official page instead.No contact details on file — see the official NHTSA notice.
✎ GovInfoNow plain-language explainer

What happened, in plain English

Mack is recalling certain 2025 Anthem and 2025-2026 Pioneer trucks because their steering system may malfunction, causing loss of control and increasing crash risk. Owners must update the vehicle's software or visit a dealer to disable the oversteer feature. Read more at govinfonow.com/recall/1342257-mack-anthem-2025-steering-recall-risk-of-crash-due-to.

Source Summary by GovInfoNow · govinfonow.com/recall/1342257-mack-anthem-2025-steering-recall-risk-of-crash-due-to · Updated October 8, 2026 · Official notice: NHTSA #25V521000

Cite this page

“Mack Anthem 2025 Steering Recall: Risk of Crash Due to Loss of Control.” GovInfoNow, updated October 8, 2026. https://govinfonow.com/recall/1342257-mack-anthem-2025-steering-recall-risk-of-crash-due-to. Based on NHTSA recall #25V521000 (https://www.nhtsa.gov/recalls?nhtsaId=25V521000).

Why it’s dangerous

The oversteer guidance feature may malfunction, causing the vehicle to lose steering control. This could lead to a crash if the driver cannot maintain proper vehicle handling.

Who’s affected

Owners of 2025 Anthem and 2025-2026 Pioneer trucks are affected. Drivers of these specific truck models face the highest risk due to potential steering loss.

How to tell if you have this one

Check your vehicle's year and model: 2025 Anthem or 2025-2026 Pioneer. The recall was notified to owners via mail on August 21, 2025.

  • Brand
    Mack
  • Category
    Vehicle
Based on the official NHTSA remedy

What to do — step by step

  1. Disable Oversteer Guidance

    Update the vehicle's software via over-the-air update or visit a dealer to disable the feature.

Official remedy

What NHTSA says to do

The oversteer guidance feature will be disabled through an over-the-air (OTA) update or by a dealer, free of charge. Owner notification letters were mailed August 21, 2025. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0483.

✎ GovInfoNow

Questions people ask

Why is this recall happening?

The dynamic steering and oversteer guidance feature may malfunction, causing loss of steering control.

How can I fix this issue?

The oversteer guidance feature will be disabled through an over-the-air update or by a dealer, free of charge.

When was this recall notified?

Owner notification letters were mailed August 21, 2025.

Take action

Contact Mack

We’ve drafted a message you can send Mack to request your refund or repair — edit it as you like.

Subject: Recall 25V521000 — Mack Mack

Hello,

I own a Mack that is covered by recall 25V521000 from Mack.

The official recall notice states: The oversteer guidance feature will be disabled through an over-the-air (OTA) update or by a dealer, free of charge. Owner notification letters were mailed August 21, 2025. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0483.

I’m writing to arrange the remedy described in the recall (a refund, repair, or replacement as applicable). Could you please tell me the next steps to resolve this?

Thank you.

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Where this comes from

The facts (hazard, remedy, dates, manufacturer) are pulled from the official NHTSA recall record. The plain-language summary and step-by-step checklist are written by GovInfoNow to make the official notice easier to act on — they don’t replace it.

  • Official source: NHTSA Recall #25V521000 (August 11, 2025)
  • Plain-language summary written by qwen3:4b on October 8, 2026, from the official record above. Not reviewed by a person — if it conflicts with the NHTSA notice, the notice is correct. Report an error on this page.
  • GovInfoNow is an independent service and is not a government agency. We republish official NHTSA recall data; we don’t issue, amend or administer recalls.
GovInfoNow is an independent guide. We are not NHTSA or any government agency. Always confirm details with the official recall.Data: CPSC · FDA · NHTSA · USDA