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Mack Trucks, Inc.: Exterior Lighting:Turn Signal (2025 MACK PIONEER PR (4), 2026 MACK PIONEER PR (4), 2027 MACK ANTHEM AN (4)…)

Vehicles & EquipmentSource: NHTSA · Date: 2026-04-01

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The text below is copied from the official NHTSA record. If anything differs, the official notice is correct.

Company / brand
Mack Trucks, Inc.
Product
2025 MACK PIONEER PR (4); 2026 MACK PIONEER PR (4); 2027 MACK ANTHEM AN (4); 2027 MACK PIONEER PR (4)
Reason / hazard
Turn signals that do not function properly may fail to indicate the driver's intention to change vehicle direction, increasing the risk of a crash.
What to do (remedy)
Dealers will update the turn signal indicator software, free of charge. Owner notification letters were mailed May 7, 2026. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0493. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov April 1, 2026.
Distribution / sold at
Potentially affected: 86
Defect
Mack Trucks, Inc. (Mack) is recalling certain 2025-2027 Pioneer (4) and 2027 Anthem (4) trailers. The trailer turn signals may not function properly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."
Component
EXTERIOR LIGHTING:TURN SIGNAL
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