2026.38.5.5 Aggiornamento software Tesla (Note di rilascio ufficiali)

Note di rilascio versione 2026.38.5.5 (inglese)

Tesla software update 2026.38.5.5 was listed on October 21, 2026, adding another build to the 2026.38.5 family. Its eight official entries are now available, led by FSD (Supervised) v14.3.12 Down Under for the listed HW4 vehicles. Readers comparing 2026.38.5, 2026.38.5.1, and 2026.38.5.10 should follow this build’s own requirements: related numbering does not establish an identical feature package.

The supervised-driving notes describe improvements to reinforcement learning and visual perception, including difficult visibility, three-dimensional geometry, and traffic signs. A rebuilt compiler and runtime carry a stated 20% reaction-time improvement. Other changes address lane positioning, close following, parking decisions, emergency vehicles, school buses, animals, complex intersections, and unusual road obstructions. Expanded reasoning and pothole avoidance remain upcoming improvements.

Arrival Options lets drivers select Carpark, Indoor Carpark, Street, Driveway, or Pull Over. Destination preferences and parking positions are remembered, while a reasoning model selects a suitable default and navigation adjusts the destination pin to match. This helps distinguish choosing a destination from choosing how the vehicle should finish the trip.

Speed Profiles combines the selected driving style with speed limits and surrounding traffic. SLOTH favors slower speeds and more conservative lane choices than CHILL, while MAD MAX allows higher speeds than HURRY. Moving the right scroll wheel changes the profile rather than a precise speed offset. These settings do not remove the driver’s responsibility to supervise.

The interface adds Self-Driving statistics under Controls > Self-Driving, touchscreen activation from Park or during a drive, and direct access to speed and arrival settings in the visualization. Brake Confirm defaults off for the start button, removing the press-and-release confirmation step; drivers can enable it again under Self-Driving > Brake Confirm. The driving entries list HW4 Model S (New), Model 3, Model X (New), and Model Y.

Halloween Mode separately targets the listed AMD vehicles, including Cybertruck, with themed graphics, visitor effects, a light show, and Photobooth functions. Set Arrival Energy allows phone-based destination-energy selection with Tesla App 4.58.0 or later. Security improvements are included without a detailed vulnerability list. Below are the confirmed release notes and illustrations, preserving each entry’s vehicle, hardware, and availability conditions.

FSD (Supervised) v14.3.12 Down Under

New Feature
for Model S (New), 3, X (New) and Y
HW4

The Down Under edition of HW4 FSD v14.3.12 describes updated reinforcement-learning training and a stronger vision encoder for uncommon situations, reduced visibility, three-dimensional geometry, and traffic signs. A rebuilt MLIR-based compiler and runtime are associated with a stated 20% faster reaction time and faster development iteration.

Driving refinements target unnecessary lane bias, close following, parking selection and maneuvers, and the predicted parking location shown with a P icon. The notes also cover emergency vehicles, school buses, right-of-way violations, unusual vehicles, small animals, difficult traffic-light arrangements, curved approaches, yellow-light stopping, and objects protruding into the roadway.

Handling of temporary system degradation aims to maintain control and recover automatically, reducing unnecessary disengagements. Driver monitoring gains changes to gaze tracking, eyewear handling, and performance under changing lighting.

After taking over, drivers can select an intervention reason on the display. The Self-Driving App shows intervention-free distance and the longest streak, while destination parking choices appear on the map. This remains supervised driving, requiring attention and readiness to intervene.

Reasoning beyond destination handling and pothole avoidance are listed as upcoming improvements; these should not be read as functions newly available in this release.

Arrival Options

New Feature
for Model S (New), 3, X (New) and Y
HW4

Select Carpark, Indoor Carpark, Street, Driveway, or Pull Over for the destination arrival. The system retains the arrival preference and preferred parking positions for each destination.

A reasoning model evaluates suitable choices and selects a default, and the navigation pin moves to reflect the chosen arrival option.

Speed Profiles

New Feature
for Model S (New), 3, X (New) and Y
HW4

FSD selects speed using the chosen profile, the speed limit, and nearby traffic. More assertive profiles permit higher maximum speeds. SLOTH favors slower driving and more conservative lane selection than CHILL, while MAD MAX permits higher speeds than HURRY.

Moving the right scroll wheel up or down now changes the Speed Profile instead of adjusting a precise maximum-speed offset in mph or km/h.

UI Improvements

New Feature
for Model S (New), 3, X (New) and Y
HW4

View supervised-driving statistics under Controls > Self-Driving. A touchscreen tap can start supervised driving from Park or during a drive, and Speed Profiles and Arrival Options can be adjusted directly from the center display’s driving visualization.

Brake Confirm

New Feature
for Model S (New), 3, X (New) and Y
HW4

Brake Confirm for the Start Self-Driving button now defaults off. With that setting disabled, activation does not require pressing and releasing the brake as a confirmation step. To restore that confirmation, enable Self-Driving > Brake Confirm.

Halloween Mode

New Feature
for Model S (New), 3, X (New), Y and CT
AMD / Available Worldwide

On the listed AMD vehicles, add a ghost costume to the vehicle visualization, use visitor-triggered spooky sounds and flickering lights, schedule a themed light show, and apply Halloween effects in Photobooth. The notes describe access beyond the holiday itself.

Set Arrival Energy

New Feature
for Model S, 3, X, Y and CT
Tesla App 4.58.0+ / Available Worldwide

Choose a desired remaining energy level for the destination from a phone. In Tesla App version 4.58.0 or later, open the location tab, enter the destination, and select Set Arrival Energy.

Security Improvements

New Feature
for Model S, 3, X, Y and CT
Available Worldwide

This release includes security fixes and improvements. The official entry does not identify individual vulnerabilities or provide a detailed correction list.