# NHTSA recall 26V261000

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: 26V261000
- Manufacturer's number: SC0494
- Manufacturer: Mack Trucks, Inc.
- Reported: 2026\-04\-23
- Owners notified: 2026\-06\-08
- Component: SERVICE BRAKES, AIR:ANTILOCK:CONTROL UNIT/MODULE
- Units potentially affected: 2772
- Part numbers: 24710104

## What is wrong

Mack Trucks, Inc. \(Mack\) is recalling certain 2025\-2027 Pioneer \(4\) and 2026\-2027 Anthem \(4\) vehicles. The rear brake modulators may have unprotected electrical connectors that can short circuit and lead to a loss of the anti\-lock brake system \(ABS\) and electronic stability control \(ESC\).


## What can happen

A loss of anti\-lock brakes and electronic stability control increases the risk of a crash or injury.


## The remedy

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 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.


## Remedy progress the manufacturer reported

- Report: Quarterly report 2, for 2026 quarter 3
- Filed with NHTSA: 2026\-10\-07
- Vehicles in the campaign: 2772
- Reported remedied: 1663 \(59%\)
- Reported unreachable: 0
- Reported removed: 0

These are the manufacturer's totals for the whole campaign at the end of 2026 quarter 3, 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.

## Vehicles this campaign lists

- [2026 MACK ANTHEM AN \(4\)](/makes/mack/anthem/2026/recalls.md). Built 2025\-07\-08 to 2026\-04\-21. Listed as a series or trim of this model.
- [2027 MACK ANTHEM AN \(4\)](/makes/mack/anthem/2027/recalls.md). Built to 2026\-04\-21. Listed as a series or trim of this model.
- [2025 MACK PIONEER PR \(4\)](/makes/mack/pioneer/2025/recalls.md). Built 2024\-10\-22 to 2026\-04\-21. Listed as a series or trim of this model.
- [2026 MACK PIONEER PR \(4\)](/makes/mack/pioneer/2026/recalls.md). Built to 2026\-04\-21. Listed as a series or trim of this model.
- [2027 MACK PIONEER PR \(4\)](/makes/mack/pioneer/2027/recalls.md). Built to 2026\-04\-21. Listed as a series or trim of this model.

## Check a VIN

- [NHTSA recall lookup by VIN, United States](https://www.nhtsa.gov/recalls)
- [Transport Canada recall search, Canada](https://wwwapps.tc.gc.ca/Saf-Sec-Sur/7/VRDB-BDRV/search-recherche/menu.aspx?lang=eng)

JSON: [/v1/recalls/nhtsa/26V261000](/v1/recalls/nhtsa/26V261000)

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