The Recall Desk
SevereNHTSA·26V261000·Announced 2026-04-23

Mack Trucks Recalls 2025-2027 Pioneer and Anthem Models for Brake Defect

Mack Trucks is recalling 2,772 Pioneer and Anthem vehicles because unprotected electrical connectors may cause a loss of anti-lock brakes and stability control.

What this means for you

Illness, injury, or structural failure has been reported. Stop using the product immediately and contact the manufacturer for a refund or repair.

Our severity reasoning: The recall involves a structural vehicle defect affecting the braking system, which the source text states increases the risk of a crash or injury.

Plain-English summary

Mack Trucks, Inc. is recalling certain 2025-2027 Pioneer and 2026-2027 Anthem vehicles. The recall involves a total of 2,772 units. The defect involves rear brake modulators that may have unprotected electrical connectors. These unprotected connectors can short circuit, leading to a loss of the anti-lock brake system (ABS) and electronic stability control (ESC).

A loss of anti-lock brakes and electronic stability control increases the risk of a crash or injury. No specific injuries or crashes have been reported in the source text.

Dealers will inspect the rear brake modulator electrical connectors, install a protective cover, and replace the rear brake modulators as necessary, free of charge. Owner notification letters were mailed on June 8, 2026. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0494. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning April 30, 2026.

The recalled product

Product
MACK PIONEER PR (4), ANTHEM AN (4)
Brand
MACK
Manufacturer
Mack Trucks, Inc.
Category
Vehicle — Trucks
Hazard
Affected units
2,772

Is your product affected?

Check your packaging against the codes below. If any of them match, the product is part of this recall.

Model numbers (2)

  • PIONEER PR (4)
  • ANTHEM AN (4)

Distribution

Distributed nationwide across the United States.

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