https://www.siliconvalley.com/2021/10/04/us-decides-not-to-open-formal-probe-of-tesla-battery-fires/

DETROIT (AP) — U.S. automobile safety regulators have denied a petition seeking an investigation into Tesla software updates, saying it’s unlikely a probe would find a safety defect.

The National Highway Traffic Safety Administration on Monday denied the 2019 petition, which alleged that over-the-internet software updates cut battery range in response to battery fires across the globe.