NHTSA Campaign 26V207000

EXTERIOR LIGHTING:TURN SIGNAL

Issued by Mack Trucks, Inc. · Reported Apr 1, 2026 · 86 vehicles affected

What's wrong

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."

Consequence

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.

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.

Vehicles affected by this recall

Make Model Year Units
MACK ANTHEM AN (4) 2027 86
MACK PIONEER PR (4) 2025 86
MACK PIONEER PR (4) 2026 86
MACK PIONEER PR (4) 2027 86

Source: NHTSA Campaign 26V207000 on nhtsa.gov. To check the current repair status for a specific vehicle, use our free VIN decoder.