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."
Compare the exact product and every lot, model, serial range or date listed in the official notice. A similar name alone does not establish that your product is included.
Identifiers in this source record
2025 MACK PIONEER PR (4)Manufacturer campaign: SC0493Part: 24790196Part: 24891830Part: 249153042026 MACK PIONEER PR (4)2027 MACK PIONEER PR (4)2027 MACK ANTHEM AN (4)Vehicle: VIN plus the year, make and model. Car seat or equipment: Manufacturer, model and production date from the label. Tire: Brand, tire line, size and DOT tire identification number.
Read the vehicles identification guideWhy this notice was issued
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.
Official 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.
Follow the specific instructions and use the contact details in the announcement if you need help confirming a match or arranging the remedy.
Read the full official instructionsProduct & source details
- Product
- 2025 MACK PIONEER PR (4)
- Brand or manufacturer
- MACK
- Source
- NHTSA
- Notice type
- Recall
- Source reference
- 26V207000
- Category
- Vehicles & road safety