Good Headlights Mean Fewer Crashes - IIHS News

Good IIHS headlight ratings linked to lower crash rates

The headlight ratings program developed by the Insurance Institute for Highway Safety is reducing dangerous nighttime crashes in the real world, a recent study shows.

Nighttime crash rates per mile are nearly 20 percent lower for vehicles with headlights that earn a good rating in the IIHS evaluation, compared with those with poor-rated headlights, the study found. For vehicles with acceptable or marginal headlights, crash rates are 15 percent and 10 percent lower than for those with poor ratings.