Recall
Mack Pioneer Pr (4) — 25V622000
NHTSA ID
25V622000
Make
Mack
Model
Pioneer Pr (4)
Years Affected
2025
Recall Date
2025-09-18
Component
EXTERIOR LIGHTING:LIGHTING CONTROL MODULE
Units Affected
156
Completion Rate
—
Mfr Campaign No.
SC0484
Summary
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.
Consequence
Trailer tail lights and turn signals that do not illuminate as intended can reduce visibility to other drivers, increasing the risk of a crash.
Remedy
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.