# Mack Trucks, Inc.: High Beams May Not Automatically Switch to Low Beams/FMVSS 108 (25V803000)

**Recall Urgency Score:** 20/100

| Field | Value |
|---|---|
| Manufacturer | Mack Trucks, Inc. |
| Subject | High Beams May Not Automatically Switch to Low Beams/FMVSS 108 |
| NHTSA ID | 25V803000 |
| Manufacturer campaign | SC0488 |
| Recall type | Vehicle |
| Component | EXTERIOR LIGHTING |
| Units potentially affected | 247 |
| Do not drive | No |
| Park outside | No |
| Defect | Mack Trucks, Inc. (Mack) is recalling certain 2026 Anthem (4) and 2025-2026 Pioneer vehicles. The automatic high beams (AHB) may not switch to low beam headlights as intended.  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 | High beam headlights that do not switch to low beam as intended can reduce visibility for oncoming traffic, increasing the risk of a crash. |
| Remedy | As an interim action, Mack will update the vehicle software through an over-the-air (OTA) update to disable the AHB feature, free of charge. Owner letters were mailed May 29, 2026. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0488. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning November 27, 2025. |

## Why this score
- 247 units affected.

Source: U.S. National Highway Traffic Safety Administration (NHTSA) recalls, via data.transportation.gov (https://www.nhtsa.gov/recalls?nhtsaId=25V803000). Last refreshed: 2026-11-03T18:08:10.172Z.
Recall data comes from NHTSA and is summarized automatically; check the official notice and VIN lookup before acting. Informational only.