---
title: "MACK PIONEER PR (4) (2026) - Recall 25V622000 — NHTSA record 297734 | Is It on Recall"
description: "Mack Trucks, Inc. (Mack) is recalling certain 2025-2026 Pioneer vehicles. When towing a trailer, the trailer lights may fail to illuminate due to an improperly"
url: https://isitonrecall.com/recall/nhtsa-297734-mack-pioneer-pr-4-2026-recall-25v622000/
updated: 2026-10-01
site: "Is It on Recall"
language: en
---

[Recall archive](https://isitonrecall.com/archives/) / NHTSA

# MACK PIONEER PR (4) (2026) - Recall 25V622000 — NHTSA record 297734

Published notice; closure not supplied

A campaign record does not say whether this individual vehicle has received the remedy. Check the VIN with NHTSA or the manufacturer.

Source date Sep 18, 2025. Retrieved Oct 1, 2026. Last updated Oct 1, 2026.

Archive changed Oct 1, 2026. USDA FSIS records are unavailable; [check FSIS directly](https://www.fsis.usda.gov/recalls). [Source coverage and dates](https://isitonrecall.com/sources/).

## What the record says

- **Product**: MACK PIONEER PR (4) (2026) - Recall 25V622000
- **Reason**: Mack Trucks, Inc. (Mack) is recalling certain 2025-2026 Pioneer vehicles. When towing a trailer, the trailer lights may fail to illuminate due to an improperly manufactured body control module. Trailer tail lights and turn signals that do not illuminate as intended can reduce visibility to other drivers, increasing the risk of a crash.
- **Classification**: Not supplied
- **Recalling firm**: Mack Trucks, Inc.
- **Quantity**: 156
- **Agency-reported status**: Published safety recall
- **Source record identifier**: 297734

[Open the official record](https://api.nhtsa.gov/recalls/campaignNumber?campaignNumber=25V622000)

## Lot and product identifiers

| Label field | Details supplied by the agency |
| --- | --- |
| Lot, code or applicability | Product applicability: MACK PIONEER PR (4); model year 2026. Check the model identifiers and, for a vehicle, the VIN on the official recall site. |

Match all identifying details in the current notice. A brand name alone is not enough.

## Distribution

Not supplied

No US distribution state could be established from this record. Check the official notice.

## Dates in the source

- **Report received**: Sep 18, 2025
- **Manufacturer end**: Sep 5, 2025
- **Owner notification**: Nov 19, 2025
- **Record created**: Sep 19, 2025

FDA company pages use the listing date; enforcement records use initiation dates; CPSC uses recall date; NHTSA uses report-received date. These dates are not interchangeable.

## What to do next

Dealers will replace the trailer body input/output module, free of charge. Owner letters were mailed November 19, 2025. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0484.Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning September 25, 2025.

[Read the current instructions](https://api.nhtsa.gov/recalls/campaignNumber?campaignNumber=25V622000)

Use [NHTSA's VIN check](https://www.nhtsa.gov/recalls) to check an individual vehicle and its remedy status.

## Related records

[Vehicles records](https://isitonrecall.com/product/cars/) [Vehicles and equipment records](https://isitonrecall.com/category/vehicles/) [Mack Trucks, Inc. records](https://isitonrecall.com/brand/mack-trucks-inc/)