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NHTSA·Commercial vehicles·August 6, 2026

Mack recalls 2027 Anthem and Pioneer trucks over roof marker lights that may not light up

The center roof marker lights on these trucks may fail to illuminate, which can reduce visibility and raise the risk of a crash.

What to do

Dealers will replace the center roof marker light for free. Owners may contact Mack customer service at 1-800-866-1177 and refer to recall number SC0498.

Look up your car to see every recall for its make, model and year.

NHTSA recall page

Recall details

Product
Mack Pioneer Pr (4), Anthem An (4) 2027
Company
Mack Trucks, Inc.
Hazard
Marker lights that fail to illuminate can reduce visibility, increasing the risk of a crash.
Units
513 vehicles
Reported to NHTSA
August 6, 2026
Identifiers
  • NHTSA campaign number: 26V515000
  • Manufacturer campaign number: SC0498
  • Model years: 2027

The headline, summary and steps above are written in plain English from the official notice below. Identifiers are copied exactly as the agency published them. Always check the official notice before you act.

Official notice

The notice's own wording from NHTSA.

Component
EXTERIOR LIGHTING
Defect
Mack Trucks, Inc. (Mack) is recalling certain 2027 Anthem AN (4) and Pioneer PR (4) vehicles. The center roof marker lights may fail to illuminate. 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
Marker lights that fail to illuminate can reduce visibility, increasing the risk of a crash.
Corrective action
Dealers will replace the center roof marker light, free of charge. Interim letters notifying owners of the safety risk were mailed September 22, 2026. Additional letters will be sent once the final remedy is available. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0498. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning August 13, 2026.

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