Mack Pioneer Pr (4), Anthem An (4) (2025–2027) recall: Exterior Lighting
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
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.
Look up your car to see every recall for its make, model and year.
Recall details
- Product
- Mack Pioneer Pr (4), Anthem An (4) 2025–2027
- Company
- Mack Trucks, Inc.
- 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.
- Units
- 86 vehicles
- Owner notification
- May 8, 2026
- Reported to NHTSA
- April 1, 2026
- Identifiers
- NHTSA campaign number: 26V207000
- Manufacturer campaign number: SC0493
- Model years: 2025–2027
Details are taken from the official notice. 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:TURN SIGNAL
- 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."
- 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.
- Corrective action
- 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.
Related recalls
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.
Mack Trucks, Inc. · 513 vehicles
Mack recalls 2026 Anthem and 2025–2026 Pioneer trucks because automatic high beams may not switch to low beam
The automatic high beams on these trucks may not switch to low beam as intended, which can reduce visibility for oncoming drivers and raise the risk of a crash.
Mack Trucks, Inc. · 247 vehicles
Mack recalls 2025–2027 Pioneer and 2026–2027 Anthem trucks over brake wiring that can short circuit
Unprotected electrical connectors on the rear brake modulators can short circuit and knock out the anti-lock brakes and electronic stability control, raising the risk of a crash or injury.
Mack Trucks, Inc. · 2,772 vehicles
Volvo Trucks recalls 2025–2027 VNL and 2026–2027 VNR trucks over turn signals that may not work
The turn signals on these trucks may not work properly, so they may not show other drivers when the truck is about to change direction, which raises the risk of a crash.
Volvo Trucks North America · 340 vehicles