GoKawiilAdaptive driving beam headlights begin rollout in US after 2022 NHTSA rule change
Adaptive driving beams (ADBs), which selectively dim portions of a headlight beam to avoid blinding oncoming drivers while keeping the rest of the road lit, are starting to appear on US vehicles. The technology has been used for years in Europe and Asia but was blocked in the US until the NHTSA revised its lighting regulations in 2022. Automakers must now prove their systems meet NHTSA's detailed performance benchmarks, which Rivian lighting engineer Carlos Montes says are stricter and more measurable than those in other markets.
GoKawiil's interpretation of the reporting above, not reported fact.
Nighttime driving accounts for roughly a quarter of all driving time but half of traffic deaths, according to the Federal Highway Administration, suggesting better night visibility could meaningfully affect road safety. The stricter, pass/fail nature of US standards may slow adoption compared to other markets, since automakers must build more rigorous software validation rather than simply enabling existing hardware. This could mean a gradual, automaker-by-automaker rollout rather than an industry-wide simultaneous shift.
- ADB headlights dim only the beam segments that would hit other drivers' eyes, unlike traditional high/low beam switching.
- US adoption was delayed until NHTSA updated lighting regulations in 2022, despite the tech being common abroad for years.
- NHTSA's stricter, measurable pass/fail standards make engineering compliant systems harder than in other regulatory markets.
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Published there as: “US drivers are finally getting the adaptive headlights Europe has had for years”
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