CARFAX Advisory Services received approval on June 24, 2025, to revise its Advanced Driver Assistance System (ADAS) scoring rules in Tennessee (SERFF #CARF-134579619). The update addresses a scoring inconsistency that previously resulted in inappropriately low scores—and thus higher relative loss costs—for certain recent-model vehicles with little or no odometer data.

The correction applies to models B2, B3, and B6, which use mileage as a rating input. Other models, including A1, B4, and B5, remain unaffected. No customers were adversely impacted prior to the fix.

CARFAX segments vehicles based on ADAS features, vehicle history, and mileage, with scores ranging from 100 (highest risk) to 900 (lowest risk). The updated rules took effect immediately and reflect ongoing refinement of CARFAX’s vehicle-level risk segmentation tools for auto insurers.