Tesla FSD 14.3.9 and 14.3.10: Automatic Collision Evasion arrives, and HW3 gets 14.2 Lite

What this means for your wrap or lock chime: every build in this wave is newer than 2026.26, the car software Paint Shop needs to take a wrap straight from the Tesla app. If your car shows 14.3.9, 14.3.10 or 14.2 Lite, you can upload a wrap from the Tesla app tonight, no USB drive needed.

FSD (Supervised) 14.3.9 started reaching owners in early September, in software 2026.27.5 on September 6 and then 2026.27.6 on September 8, and its headline feature is brand new: Automatic Collision Evasion, which lets the car's self-driving step in during manual driving to keep you out of trouble. That is from Tesla's release notes for 2026.27.6 and Tesla Oracle's September 12 rundown. On September 19, 14.3.10 arrived in 2026.27.10 with the same driving notes, and it is the newest FSD build on customer cars as of early October.

What's in 14.3.9

The 14.3 series has been about polish, and 14.3.9 keeps going. Per the release notes:

• Upgraded reinforcement-learning training and a stronger vision encoder for rare and low-visibility situations.
• The series' rewritten AI compiler and runtime, which Tesla credits with a 20% faster reaction time.
• Better parking: more decisive parking-spot selection, with the predicted spot shown on the map as a P icon.
• Steadier driving: less unnecessary lane biasing and minor tailgating, and better driver-monitoring accuracy with glasses and in changing light.
• Better manners around special vehicles: improved responses to emergency vehicles, school buses and right-of-way violators, plus better handling of small animals and traffic lights at complex intersections.
• One model for everything: the same driving model now runs Actually Smart Summon, FSD and Robotaxi.
• Faster Summon: Actually Smart Summon's top speed rises to 8 mph (13 km/h).
• Your stats: you can log a reason when you take over, and see your distance and longest streak without an intervention.

If you followed the 14.3.8 wave in late August, most of that list will look familiar. The new part is the safety feature.

Automatic Collision Evasion, explained

Automatic Collision Evasion is for the moments when you are the one driving. In Tesla's words, it "activates Full Self-Driving (Supervised) to try to keep your vehicle safe and then continue driving." The release notes give two triggers:

1. The car detects that you are not paying enough attention to the road, for example reaching toward the back seat.
2. FSD (Supervised) may have been turned off by accident.

Tesla Oracle adds that the feature is aimed at frontal collisions that braking alone may not avoid. Instead of only warning you or braking, the car can take over the driving to try to avoid the crash, then keep driving under FSD (Supervised).

Think of it as automatic emergency braking's bigger sibling. The car already had the eyes. Now it can use the steering wheel too.

Which cars get it

14.3.9 and Automatic Collision Evasion are for cars with the Hardware 4 (AI4) computer: Model 3, Model Y, the newer Model S and Model X, and the Cybertruck. Rollout started with Tesla's Early Access group and was slow at first, Tesla Oracle reported on September 12. Most cars are getting Automatic Collision Evasion through 14.3.10 instead: on October 4, Not a Tesla App's fleet tracker showed 0.4% of tracked cars on 2026.27.6 against 15.9% on 2026.27.11, which carries 14.3.10. If your car has not been offered the update yet, it is staged, not skipped.

FSD 14.2 Lite for Hardware 3

The same software, 2026.27.6, carries a separate build for Hardware 3 Model 3 and Model Y: FSD (Supervised) 14.2 Lite. It distills the HW4 v14 model to fit the older computer, with better responses to merges, pedestrians, traffic lights and cars cutting in, and fewer false slowdowns with smoother steering. It also adds parking, unparking and reversing, plus:

• Start Self-Driving from Park: an on-screen button starts FSD when you are seated, buckled and the cabin camera is clear.
• Arrival Options: choose Parking Lot, Street, Driveway or Pull Over, and the car remembers your preference for each destination.
• Speed Profiles: a new, gentler SLOTH profile with lower speeds and more conservative lane choice.

It is the next step after FSD v14 Lite went wide on HW3 in July. Cars from 2019 keep getting meaningfully better.

14.3.10: same notes, one new trick

FSD 14.3.10 started rolling out on September 19 in 2026.27.10. Its driving notes match 14.3.9 almost word for word, as Tesla North noted the same day, and Automatic Collision Evasion is still listed. The new item in the 2026.27.10 release notes is for the Cybertruck: Vehicle-to-Home with Powerwall, which lets the truck share its battery to stretch your home's backup power during an outage. Tesla followed with 2026.27.11 on September 23, which Not a Tesla App lists with the same FSD 14.3.10 and 14.2 Lite builds, and that is the release most owners are seeing it in.

Australia and New Zealand

Tesla brought FSD in Oceania up to 14.3.9 with software 2026.28.5 on September 16, which its release notes say also adds the Summer Update features. Basenor reports it was first spotted on a 2024 Model 3 Performance in New South Wales and is limited to HW4 cars. FSD v14 itself only reached the region in June, so owners there went from v13 to the current build in three months.

When v15 arrives

FSD v15 is next. Tesla is already running early v15 builds in its Robotaxi fleet, and its stated target for HW4 customer cars is late this year or early next, which we covered in Tesla's 24/7 Robotaxi plans. Not a Tesla App reported on October 4 that round-the-clock Robotaxi service could start as early as this month, tied to v15 reaching those cars. Until then, 14.3.10 is the build to have.

FAQ

What is the latest Tesla FSD version? As of early October 2026, FSD (Supervised) 14.3.10 for Hardware 4 cars, in software 2026.27.10 and 2026.27.11, and 14.2 Lite for Hardware 3 cars.

What is Automatic Collision Evasion? A safety feature in FSD 14.3.9 and 14.3.10 that switches on FSD (Supervised) during manual driving when the car detects you are not paying attention, or when FSD was turned off by accident, so the car can avoid a collision and keep driving.

Which Teslas get FSD 14.3.9? Cars with the Hardware 4 (AI4) computer: Model 3, Model Y, the newer Model S and Model X, and the Cybertruck. Hardware 3 Model 3 and Model Y get FSD 14.2 Lite instead.

What software version is FSD 14.3.9? 2026.27.5 on September 6, 2026, then 2026.27.6 on September 8. In Australia and New Zealand it arrived in 2026.28.5.

Is FSD 14.3.10 different from 14.3.9? Barely. The driving notes are nearly identical. 14.3.10 adds Vehicle-to-Home with Powerwall for the Cybertruck.

Your car just learned to dodge trouble. Give it something worth protecting: check which features your car has in our Tesla feature guide, then design a wrap in the studio.