Tesla in Katy, Texas: driver blamed FSD, but Tesla data points to 100% throttle and 117 km/h

A Tesla Model 3 crashed through the brick front of a home in Katy, Texas on Friday June 19, 2026, killing Martha Avila, a 76-year-old woman who was inside the home. The driver, Michael Butler (44), survived, was hospitalized and told the agents that the car was traveling with an active assisted driving system — Autopilot or FSD, according to different media.

Three days later, Tesla counterattacked. Ashok Elluswamy, the company's vice president of AI and director of Autopilot software, posted on 100% in a residential area, reached 73 mph (~117 km/h) and kept the pedal depressed even after the crash.

«Yup. In this case, the driver manually override self-driving by pressing the accelerator all the way to 100% of the accel pedal in this residential area. They reached a speed of 73 mph during the crash, and had the accelerator pressed even after the crash.»

— Ashok Elluswamy (@aelluswamy), Jun 22, 2026

What happened on Friday in Katy

According to the Harris County Sheriff's Office, reported by Fox News, Business Insider and The Independent, Butler was traveling on a residential street in Katy around 20:03 when the vehicle failed to follow the lane, left the road and It hit the house "at high speed."

Avila was hit inside the house — the family lived there; The daughter, Jennifer Barbour, told KHOU 11 that the car entered her children's playroom. She was evacuated by helicopter and died in hospital. Butler was taken by ambulance; He showed no signs of intoxication and is cooperating with the investigation.

Tesla's response: telemetry against the driver's version

On Sunday, June 22, the narrative changed when Elluswamy responded to a thread from Elon Musk about the case. The Tesla Newswire summarized the points the company attributes to the car's registrations:

• The driver overrode the FSD by pressing the accelerator
• The pedal remained at 100%
• Speed of 73 mph in residential area
• Accelerator remained pressed after impact

Musk amplified the message: “It doesn't make sense. FSD is driving slowly on residential streets and this was a high speed crash,” he wrote on Advocates like Nic Cruz Patane celebrated Tesla “closing the FUD” with data stored in the vehicle.

What is not yet resolved

Tesla telemetry is not equivalent to a judicial ruling. The Harris County sheriff continues to investigate and has not confirmed whether Autopilot or FSD were active at the time of impact, as CBS News warned. The NHTSA opened a special crash investigation on Monday, one of more than 40 similar ones linked to Tesla in recent years, according to the BBC.

Tesla markets its systems as Autopilot and Full Self-Driving (supervised), but requires the driver to remain attentive and ready to take control. If Elluswamy's data is confirmed, the case reinforces the company's argument that the driver — not the software — caused a speed incompatible with autonomous driving in a neighborhood. If the federal investigation finds flaws in the system, the story could turn again.

In summary

What happened? A Model 3 destroyed a house in Katy and killed Martha Avila (76). What did the driver say? That he was on Autopilot. What does Tesla say? That he stepped on the accelerator at 100%, at 73 mph, in a residential area. Who is right? The sheriff and the NHTSA investigate; There are no charges yet. Why does it matter? Reignites the debate about FSD, Tesla telemetry and whether the media blames the software before knowing the data.