Hello from Editor Z. Tesla just shipped a feature that lets the car's software grab the wheel, the brakes, and even the accelerator while you're driving manually — no FSD engaged, no request from you. Automatic Collision Evasion rolled out to owners on Tuesday afternoon in September 2026, and Tesla reportedly pulled it from cars roughly 20 minutes later without a word of explanation. The timing could not be worse: it landed right as Tesla owners in FSD v14 communities are already venting about a version of the software that swerves and brakes at hazards that were never there.
What Automatic Collision Evasion Actually Does
This isn't Automatic Emergency Braking with a new name. Standard AEB only ever does one thing — brake in a straight line. Automatic Collision Evasion is different: it activates Full Self-Driving (Supervised) itself, mid-manual-drive, and lets the car steer around a hazard rather than just stopping short of it.
Two Ways It Can Take Over
According to Tesla's own release notes for the feature, it engages in two distinct situations. The first is an imminent frontal collision: if the car determines a crash with another vehicle is unavoidable by braking alone, it can activate on a controlled-access highway at speeds under 85 mph, but only when there are no pedestrians, cyclists, or other vulnerable road users in the path, the steering is functional, and the road is dry. The second trigger is driver inattention — the car detecting you're "not sufficiently attentive to the road," Tesla's example being a driver reaching into the back seat, or a case where FSD (Supervised) was unintentionally disengaged. That second trigger works on any road type, not just highways, at speeds between 22.5 and 85 mph.
What the Car Does During an Evasion
Once triggered, the system steers around the obstacle using a lane change or a move onto the shoulder, and applies braking or acceleration as needed to complete the maneuver. It doesn't just nudge the car and hand control back immediately — it stays in charge until Tesla's software judges the hazard has cleared, then sounds a chime prompting the driver to retake the wheel.
How You Get Control Back
Tesla built in an override, but it's asymmetric. During an evasion event, the accelerator pedal is muted entirely — mashing the gas won't do anything. Light brake pressure will slow the car without kicking the system out of FSD. To actually cancel the maneuver, Tesla says it takes "firm, deliberate steering force." In other words, the car assumes you want it to finish the move unless you fight the wheel hard enough to prove otherwise.
Who Actually Gets This Feature — and Where
Hardware and Subscription Gates
Automatic Collision Evasion is exclusive to vehicles running Tesla's Hardware 4 (AI4/HW4) FSD computer — HW3 cars, which are already running a scaled-down "FSD v14 Lite" build, don't get it. It also requires an active FSD (Supervised) purchase or subscription, plus both Automatic Emergency Braking and FSD (Supervised) enabled in the car's settings. Miss any one of those boxes and the feature simply doesn't arm.
Where It Works — and Where It Doesn't
The feature currently only operates in North America, and Tesla is explicit that this is not a general-purpose obstacle-avoidance or lane-change system — it exists solely for the two scenarios above, not as a standing co-pilot that nudges your line through every curve. That narrow framing matters, because it's also the entire justification for letting software override a human's steering input in the first place: Tesla is betting owners will accept it precisely because it's positioned as a last-resort net, not a constant presence.
The 20-Minute Rollout That Wasn't
A Tracker's Live Play-by-Play
The rollout itself became news almost by accident. Tesla investor and close Tesla-software tracker Sawyer Merritt posted on X at 5:35 p.m. Central time that FSD v14.3.9 had "just officially started rolling out," sharing the in-car release notes describing Automatic Collision Evasion. About 15 minutes later, Merritt posted again: the update had apparently been "temporarily pulled" from everyone's cars, and he wasn't sure why. Reporting on the episode put the full window — rollout to pull — at roughly 20 minutes.
Silence Where an Explanation Should Be
Tesla has not publicly confirmed a reason for the withdrawal, and the claim of an outright pull hasn't been corroborated by other outlets independently of the initial report. One plausible, more mundane explanation floating around: Tesla's initial push used firmware build 2026.27.5, which the company then swapped for 2026.27.6 — the build that also bundles a fresh FSD v14.2 Lite release for HW3 cars — and that swap is what some owners experienced as their pending update vanishing. Whether that's a routine build substitution or Tesla catching something it didn't like in a feature that can override a driver's steering, Tesla hasn't said. What's confirmed is that Automatic Collision Evasion didn't disappear for good — it resurfaced shortly after in FSD v14.3.9's successor build, v14.3.10, this time without the same 20-minute drama.
Automatic Collision Evasion vs. Standard AEB
| Feature | Automatic Emergency Braking | Automatic Collision Evasion |
|---|---|---|
| Action taken | Straight-line braking only | Steers around hazard (lane change or shoulder) plus braking/acceleration |
| Requires FSD active | No | Yes — activates FSD (Supervised) itself |
| Hardware needed | All Tesla hardware | HW4 (AI4) only |
| Trigger: frontal collision | Any road, any speed within system limits | Controlled-access highway, under 85 mph, dry road, no pedestrians/cyclists in path |
| Trigger: driver inattention | Not applicable | Any road type, 22.5–85 mph |
| Driver override | Brake/steer cancels immediately | Accelerator muted; needs firm steering force to cancel |
| Availability | Global | North America only, requires active FSD purchase/subscription |
Landing in the Middle of an FSD v14 Backlash
What Owners Have Been Reporting
Automatic Collision Evasion didn't ship into a quiet moment for FSD v14. Owners in Tesla community forums and owner groups — including threads among Model Y Juniper owners — have spent recent weeks describing v14 behavior that undercuts confidence in exactly the kind of split-second judgment this new feature depends on: phantom braking, hesitation, and brake stuttering with no real hazard present, plus swerving incidents where the car aggressively accelerates to pass another vehicle only to realize at the last second it needs to exit, and cases of the car wavering between turn lanes before making an illegal turn. HW3 cars running the compressed "v14 Lite" build have reported a separate problem on top of that — FSD computers overheating under the extra processing load, tripping a thermal fault above 90°C, with some units reportedly hitting 96°C, triggering "hands on wheel" disengagements, and in a few cases needing the computer replaced entirely.
Why the Timing Makes This Land Differently
None of that is a direct indictment of Automatic Collision Evasion specifically — it's a HW4-only feature, and the phantom-braking and overheating reports concentrate more heavily around HW3's v14 Lite build. But the optics are still rough. Tesla is asking owners to trust that the same v14 model stack that's reportedly swerving at nothing and hesitating without cause will make the right call about when to seize a manually-driven car's steering and accelerator — and it's making that ask in the same month owners are posting dashcam clips of the software's judgment going sideways. A feature that overrides a human is only as trustworthy as the model behind it, and right now a vocal slice of Tesla's own owner base isn't convinced that model is behaving.
What to Watch Next
The real test isn't whether Automatic Collision Evasion works in Tesla's own demo scenarios — it's whether it stays quiet in the millions of ordinary manual miles where nothing should trigger it at all, and whether Tesla ever explains what actually happened in that 20-minute window on rollout day. With the feature now live again in FSD v14.3.10, the next signal to watch is whether owner reports of unwanted evasion events start showing up alongside the phantom-braking complaints already circulating — or whether Tesla's silence on the original pull turns out to have been nothing more than a firmware build swap after all. We'll keep tracking it as more HW4 owners get the update.
-EditorZ
Photo by Miles Loewen on Unsplash
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