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Tesla sends cease-and-desist letter against ad claiming FSD will “mow down children”
It took a while, but Tesla finally seems to be putting some effort into curbing an aggressive and controversial anti-FSD ad that claims that the company’s advanced driver assist system is unsafe and will “indiscriminately mow down children.” A cease-and-desist letter from the electric vehicle maker has reportedly been sent to The Dawn Project, an advocacy group from Dan O’Dowd, the CEO of Green Hills Software, a company that is also developing self-driving software.
The Anti-FSD Ad
Earlier this month, O’Dowd, through The Dawn Project, started pushing an anti-FSD ad that supposedly showed a Model 3 hitting a child-sized mannequin while FSD was engaged. The video and O’Dowd’s succeeding Twitter commentary were salacious, so it was no surprise that the ad’s allegations were echoed by numerous news outlets. The campaign attracted attention and criticism from Tesla supporters, however, some of whom proceeded to point out discrepancies in the anti-FSD ad.
A number of FSD Beta testers, who have been using Tesla’s advanced driver-assist system for years, proceeded to conduct tests of their own, showing that FSD Beta does stop for people. Others observed that the driver of the Model 3 in O’Dowd’s test intentionally ignored safety warnings from the vehicle. Even EV fan blog Electrek pointed out a number of inconsistencies with O’Dowd’s supposed FSD test results and data, including a sequence in the ad when the advanced driver-assist system was not engaged at all.
Cease-And-Desist
In its cease-and-desist letter, which was retrieved by The Washington Post, Tesla objected to the anti-FSD ad. The company alleged that the footage being pushed by O’Dowd was defamatory and misrepresented the capabilities of its advanced driver-assist system. Tesla demanded that the anti-FSD campaign be immediately halted and the videos be removed.
“The purported tests misuse and misrepresent the capabilities of Tesla’s technology, and disregard widely recognized testing performed by independent agencies as well as the experiences shared by our customers,” Tesla deputy general counsel Dinna Eskin wrote. Tesla also accused O’Dowd’s team of “unsafe and improper use” of FSD Beta. “Your actions actually put consumers at risk,” the EV maker added.
O’Dowd has reacted strongly to the letter. In a post on Twitter, O’Dowd noted that Musk was threatening to sue him. The Green Hills CEO included an incendiary illustration captioned with “Elon Musk’s Idea of Free Speech” on his post, which depicted Musk naked on his plane with a bound woman sandwiched between two male lawyers. The image seems designed to bait Musk, though Tesla itself has not issued a statement about its cease-and-desist letter.
“This letter is so pathetic in terms of whining: Mr. Free Speech Absolutist, just a crybaby hiding behind his lawyers,” O’Dowd told the Post. He also stated that he does not intend to take down his anti-FSD campaign. Instead, O’Dowd has pledged to put even more money into his anti-FSD efforts.
Not the First Time
This is not the first time that Dan O’Dowd has put Tesla in his crosshairs. Earlier this year, O’Dowd ran for California Senate with the sole purpose of stopping Tesla’s driver-assist systems, which he claims are the worst he has seen. For context, O’Dowd has stated that his software never fails and is unhackable, a claim that has been challenged by cyber security advocates.
Interestingly enough, Politico reported that O’Dowd actually did not plan to win a seat in the CA Senate at all — he was simply in the race because running for office entitled him to the lowest available ad rate in the run-up to the election. It also granted a higher degree of first amendment protection for his loaded claims against Tesla. Ultimately, O’Dowd ended up spending $3.8 million during his campaign — one of the most out of CA Senate candidates— but it resulted in him only getting 1.1% of the votes.
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Tesla AI lead Ashok Elluswamy said this week that 24-hour Robotaxi service is close. Replying on X to a rider who wanted Cybercab trips all night, he wrote that the capability would arrive “next month or so” once “the next tech to merge on the v15 plan” is ready.
The comment landed on September 4, one day after Tesla opened public Cybercab rides in Austin. It is the clearest near-term timeline yet for overnight unsupervised operation. Tesla’s paid Robotaxi network currently runs from 6 a.m. to 10 p.m. seven days a week across Austin, Dallas, Houston, Miami, Orlando, and Tampa.
next month or so. the next tech to merge on the v15 plan will enable it.
— Ashok Elluswamy (@aelluswamy) September 4, 2026
That 16-hour window is shorter than the 6 a.m. to 2 a.m. schedule the company used for much of the prior year.
Elluswamy did not name the specific feature or say whether the change would apply first to purpose-built Cybercabs, the existing Model Y fleet, or both. He also offered no city-by-city rollout list. The link to Full Self-Driving v15 is nevertheless significant.
Tesla has described v15 as a step-change architecture with seven parallel improvement tracks and roughly ten times more parameters than earlier builds. Early versions of that software already operate on the Robotaxi fleet and contain about 40 percent of the planned gains.
By July 2026, the unsupervised fleet had logged more than 380,000 miles across six cities in two states with what the company called an impeccable safety record and no notable incidents caused by the vehicles themselves. Tesla has repeatedly argued that camera-based end-to-end neural networks, rather than extra sensors, are the core of the solution.
Overnight service would test that claim in lower-light conditions and would also raise vehicle utilization, a key variable for Robotaxi unit economics. The company has already begun using public Superchargers at night and is building dedicated Robotaxi charging sites.
Riders have asked why software must change if the cars already drive in the dark. The practical answer appears to be reliability and scale: Tesla has held back mass expansion until more of the v15 stack is merged, citing the need for higher confidence before putting thousands of unoccupied vehicles on streets around the clock.
If the next module arrives on the timetable Elluswamy sketched, 24-hour service could begin in October 2026 in at least some markets.
That would mark a shift from a daytime-bounded pilot to a service that can run whenever demand exists, including the late-night hours that have so far remained out of reach.
Tesla is beginning to roll out Full Self-Driving Supervised v14.3.9 with a new active safety layer that can take control even when the driver is operating the car manually.
Tesla AI said the software can activate FSD on the driver’s behalf when an imminent collision is detected and Automatic Emergency Braking may not be enough. It may also engage if the system detects heavy distraction or an accidental FSD disengagement.
FSD Supervised v14.3.9 starting to roll out shortly
This release includes a new active safety feature set: FSD Supervised can now activate on your behalf when an imminent collision is detected and Automatic Emergency Braking (AEB) may not be enough.
It may also engage if we…
— Tesla AI (@Tesla_AI) September 4, 2026
The capability is essentially Automatic Collision Evasion. However, unlike conventional AEB, which mainly applies the brakes in a straight line, this feature can use steering, braking, and acceleration together if the car calculates that stopping alone will not prevent impact and a safer path exists. The system may change lanes or move toward a shoulder when conditions allow, then continue driving after the immediate threat is handled rather than simply coming to a stop.
The intervention is meant as a last-resort safety net, not a replacement for attentive driving.
Tesla Full Self-Driving v14.3.7 early review: FSD saved me from an accident
Tesla’s own description still frames FSD as supervised assistance. Secondary reports on internal release notes say the feature can fire while the car is being driven manually if cabin-camera monitoring suggests the driver is not sufficiently attentive, such as reaching toward the back seat, or if FSD appears to have been turned off unintentionally.
After the emergency maneuver, the car is expected to alert the driver and request a return to manual control.
The safety case is straightforward. Many collisions happen in the last second because a driver is looking away, fumbles a control, or faces an obstacle that braking cannot fully solve. A system that can both recognize that AEB is insufficient and execute a coordinated evasive path can reduce those remaining high-severity events.
Re-engaging after accidental disengagement also addresses a practical failure mode: a small steering nudge that drops FSD at the worst moment. The advantage is a background safety net that uses the same vision stack already running in v14, instead of leaving the car solely to emergency braking once the driver is no longer in command.
The feature still depends on FSD being enabled and, according to reports, an active FSD purchase or subscription. It does not make the vehicle unsupervised. Drivers remain responsible, and Tesla has not published how often the system is expected to intervene or how it will handle false positives.
If the rollout is conservative and the false-alarm rate stays low, the update is a meaningful step: FSD is no longer only a feature the driver turns on. In the rare moments when disaster is already forming, it can step in.
Tesla launched the all-electric, steering wheel-less, and pedal-less Cybercab last night at a quiet and small event in downtown Austin, Texas.
The launch, which marked the beginning of unsupervised ride-hailing for Tesla’s Robotaxi platform with Cybercab, has already caught the attention of the National Highway Traffic Safety Administration (NHTSA) who has more questions.
NHTSA opened an Audit Query (AQ) into the Cybercab’s Federal Motor Vehicle Safety Standards (FMVSS) certification that Tesla gave the vehicle. Manufacturers self-certify vehicles much of the time to avoid excessive regulatory delays.
Tesla Cybercab interior, note the lack of steering wheel and pedals. (Credit: @niccruzpatane/X< /a>)
However, the agency needs more information; it said in a summary:
“On September 3, 2026, Tesla began commercial deployment with a small number of its Cybercab vehicles in Austin, Texas. Tesla notified the Agency that it certified those Cybercab vehicles as compliant with all applicable Federal Motor Vehicle Safety Standards (FMVSS). Tesla also notified the Agency that it plans to gradually expand commercial deployment of the Cybercab to include additional vehicles and locations.”
It also went on to state that the Cybercab lacks traditional automotive controls, which is a groundbreaking move. The process is entirely new to the NHTSA, which gives the agency some leverage to put Tesla’s launch under a microscope:
“The vehicles lack permanently attached, conventional manual controls, such as a brake pedal, gas pedal, steering wheel, and mirrors. NHTSA is opening this AQ to examine the process and technical data on which Tesla relied when certifying the Cybercab and related issues. Among other things, NHTSA will consider the extent to which Tesla’s certification depended on determinations that certain FMVSS are inapplicable to the Cybercab.”
Tesla has added 45 Cybercab units to its fleet of Robotaxi-enabled cars in Austin, according to public documents the company submitted to the State of Texas over the past week. Enabling this level of self-driving is something Tesla has worked toward for many years, and now that it is finally here, it seems more than reasonable that regulatory agencies will have some questions.
Many outlets might try to frame this as a negative, but it is truly an agency looking to gain more information about groundbreaking tech that Tesla has been developing for years.
In an effort to keep riders, pedestrians, and property safe, any and all data accumulated from these first days, weeks, and months of rides will likely be shared with the NHTSA to enable broader rollout strategies across the United States and more in the future.
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