2026-02598Notice

Does Yelling at Your Car Distract? NHTSA Wants to Know

Published Date: 2/10/2026

Notice

Summary

The National Highway Traffic Safety Administration (NHTSA) wants to study how voice command systems in cars might distract drivers and affect their focus. They’re asking the public to share thoughts before April 13, 2026, to help shape this research. This could lead to safer car tech and better rules, with no immediate costs but important future safety benefits.

Analyzed Economic Effects

2 provisions identified: 1 benefits, 1 costs, 0 mixed.

You can volunteer for a driving simulator study

You can volunteer to take part in a one-time driving simulator study if you live in Torrance, California (or nearby), are 18–70 years old, have a valid driver's license, and meet other health and eligibility rules (for example, not pregnant, no recent seizures, not using sedatives). Participation requires about 2.5 hours in the study session plus completion of pre-study forms, and the agency estimates 1,330 people will be screened to produce a final sample of 144 participants.

Study compares six in-car voice systems

NHTSA will collect one-time data from a planned final sample of 144 participants (24 per group) to compare six voice command interface (VCI) systems: Android Auto, Apple CarPlay, Google Built-In, and three original equipment manufacturer (OEM) systems across four vehicles. The study will gather driver performance (SDLP, SDS, SDf), eye-tracking distraction measures (mean glance duration, total glance time, proportion of long glances), and cognitive workload metrics (pupil diameter, heart rate variability, and TDRT measures).

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Key Dates

Published Date
Comments Due
2/10/2026
4/13/2026

Department and Agencies

Department
Independent Agency
Agency
Transportation Department
National Highway Traffic Safety Administration
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