FSD v14.3 Lite Is Reaching HW3 Model 3 and Y Owners. Before You Update, Fix the Cabin Around It
By EV Bandit | Updated October 9, 2026
If your Model 3 or Model Y runs Hardware 3, Tesla's October 7 update puts a distilled version of its newest driving model on your car. It adds new ways to start, park and pick a speed, and every one of them is still supervised.
Tesla's update 2026.33.5 began reaching cars on October 7. According to the release notes tracked by Not a Tesla App, it carries two Full Self-Driving builds: v14.3.11 for HW4 cars, and v14.3 Lite for HW3 Model 3 and Model Y. The notes describe Lite as having "distilled the intelligence from HW4 V14 into HW3." Rollout is staged, so many owners will not see it yet.
What changed for HW3 cars
Per those notes, the HW3 package adds four headline items: FSD (Supervised) v14.3 Lite itself, Start Self-Driving from Park, Arrival Options and Speed Profiles. Arrival Options lets you choose whether the car pulls over to a parking lot, the street or a driveway at the end of a trip. The notes also list improved responsiveness around navigation, merges and forks, pedestrians, traffic lights and cut-ins, plus fewer false slowdowns, smoother steering and steadier lane centering, and new parking, unparking and reversing behaviour.
Two things the update does not do. Automatic Collision Evasion and v14.3.11 are listed for HW4 only. And although a third-party retailer's rollout write-up suggests Tesla may widen the HW3 pool later, Tesla has not confirmed that, so treat it as speculation.
"Distilled the intelligence from HW4 V14 into HW3."Tesla's release notes for 2026.33.5, as published by Not a Tesla App
What it means for owners
The word that does not change is "Supervised." Teslarati's Joey Klender wrote this week about five behaviours that still keep him taking over, from speed-limit handling in school zones to the car's parking choices. That piece is about his own experience, not your HW3 car, but the principle carries: the new features change how much you interact with the screen and the car, not whether you are responsible for it.
That is a cabin-setup question more than a software one. Two of the new features, Arrival Options and Speed Profiles, are picked on the touchscreen. A phone buzzing in the cupholder and a screen smeared with fingerprints are small frictions, and small frictions are where attention goes.
Your four-step setup
- Confirm you are in the target group. Lite is for HW3 Model 3 and Model Y. After the update, the version should read 2026.33.5 in the Software menu. Rollout is staged, so "not yet" is normal.
- Learn the new choices parked, not moving. Set your Speed Profile and look at Arrival Options before you pull away.
- Get the phone out of your lap and into your sightline. Three mounts below do it differently.
- Protect and clean the screen you will be tapping. A screen protector is a one-time fix.
1. A magnet and nothing else
The 3Y Cradle-Free Phone Mount ($39.99) is the cheapest and most minimal. It holds a phone in landscape with magnets, sticks to the back of the monitor with adhesive that the listing says tolerates hot and cold weather, and ships with two non-magnetic plates. It does not charge your phone.
2. Or a mount that charges
The Wireless Phone Mount ($69.99) clips to the screen, charges the phone, and opens and closes its arm automatically as the phone nears the sensor strip. It rotates between landscape and portrait, and includes a storage box connected out of view behind the monitor.
3. A silent holder with a place for your glasses
The Full Screen Phone Mount ($69.99) is the silicone option. The listing says it stays silent over bumps and doubles as storage for a glasses case. It does not charge, so it solves a different problem than the wireless mount: quiet and tidy, rather than powered.
| Mount | Price | Holds | Charges? | Best for |
|---|---|---|---|---|
| 3Y Cradle-Free | $39.99 | Magnetic, landscape | No | Lowest cost, nothing clipped to the screen |
| Wireless Phone Mount | $69.99 | Motorised arm, landscape or portrait | Yes | Phone that needs power on long drives |
| Full Screen Silicone | $69.99 | Rubber cradle | No | A quiet mount with glasses storage |
4. The screen you are about to tap more
The Moshi iVisor for the 15-inch center touchscreen is listed for 2018-2026 Model 3 and Y. The Clear Cover ($39.99) is the cut in stock; the Matte cover is not available right now, so do not plan around the anti-glare finish. The listing says the film is fingerprint and scratch resistant, washable and reappliable. We covered the screen-protector basics earlier in our update 2026.38 guide.
The caveat worth saying plainly
None of these products make a driving system safer or smarter. A mount keeps your phone where you can see it without holding it; a protector keeps a screen readable. That is the whole claim, and it is a small one. Supervising Lite well is mostly your attention, and the hardware around it should simply stay out of the way.
Got the update on an HW3 car? Tell the 170,000-member Tesla Model Y Owners group what Arrival Options actually did on your street.
Sources
- Not a Tesla App: Update 2026.33.5 (FSD 14.3 Lite and 14.3.11) release notes (Oct 7, 2026)
- Teslarati: Five things that are keeping Tesla Full Self-Driving supervised (Oct 6-7, 2026)
- Not a Tesla App: Tesla FSD v14 Lite for HW3 Vehicles Begins Public Rollout (Jul 21, 2026, background)
Rollout details come from Tesla's release notes as published by Not a Tesla App and may change. Prices and availability checked October 9, 2026; fitment follows each listing's stated years.