Tesla software update 2026.38.5.12 was listed on November 4, 2026, adding another build to the 2026.38.5 family. Its fifteen official entries describe two distinct supervised-driving packages alongside charging, display, lighting, seasonal, and security functions. HW4 vehicles receive FSD (Supervised) v14.3.13, while the specified HW3 models have v14.3 Lite. The build number alone does not establish a particular new correction or universal availability.
For HW4, the notes describe changes to reinforcement-learning training, vision processing, and the AI compiler and runtime, with a stated 20% improvement in reaction time. They also address parking decisions, unusual obstacles, traffic signals, emergency vehicles, animals, and driver monitoring. Intervention feedback and distance tracking help drivers review supervised operation. Expanded reasoning beyond destination handling and pothole avoidance remain upcoming improvements.
The HW3 package covers Model S, Model 3, Model X, and Model Y, bringing knowledge distilled from the HW4 system to navigation, interaction with traffic, driving comfort, parking, and reversing. Separate Park-start, Arrival Options, and visualization-control entries specify HW3 Model 3 and Model Y. Speed Profiles includes the more conservative SLOTH setting. FSD remains supervised, with an attentive driver responsible for taking over.
The non-FSD entries retain their own equipment distinctions. Halloween Mode lists AMD vehicles for themed graphics, visitor effects, light shows, and Photobooth functions. Visual Updates is narrower, targeting AMD-equipped HW3 Model 3 and Model Y. Supercharger Site Maps lists Intel vehicles, including legacy Model S and Model X, with detailed layouts and live stall information limited to supported pilot locations.
Trip planning gains phone-based arrival-energy selection through Tesla App 4.58.0 or later. Specific Model 3 and Cybertruck vehicles separately receive automatic low-beam leveling. Emergency Drive Away permits leaving with a Supercharger cable attached only in an emergency: doing so damages the vehicle and charger, may leave repair costs with the user, and shares short camera recordings with Tesla.
Automatic Collision Evasion can activate supervised driving under the described attention or unintended-disengagement conditions, and security improvements complete the package without identifying individual vulnerabilities. The illustrated notes below preserve every official heading and its particular vehicle, hardware, and availability conditions rather than treating the full list as a feature set for every Tesla.
Halloween Mode
New Feature
for Model S (New), 3, X (New), Y and CT
AMD / Available Worldwide
The listed AMD-equipped vehicles can wear a ghost costume in the visualization, react to approaching visitors with spooky sounds and flickering lights, schedule a themed light show, and use Halloween Photobooth effects. The mode is available throughout the year.
Visual Updates
New Feature
for Model 3 and Y
AMD / HW3 / Available Worldwide
On AMD-equipped HW3 Model 3 and Model Y, the center display shows higher-quality vehicle imagery and a more detailed environment while parked. Both hardware conditions apply to this entry.
Emergency Drive Away
New Feature
for Model S (New), 3, X (New), Y and CT
Reserved for emergencies, this function allows the listed vehicles to select Drive while still connected to a Supercharger. Driving away with the cable attached will damage the vehicle and charging equipment, and the user may have to cover repair costs. Activation also shares short vehicle-camera recordings with Tesla.
Supercharger Site Maps
New Feature
for Model S (Legacy), 3, X (Legacy) and Y
Intel / Available Worldwide
The listed Intel-equipped vehicles can open View Site Map for a detailed layout of supported Superchargers. When navigating to a pilot location, the display shows the layout on arrival with live indications of available, occupied, and out-of-service stalls. The pilot-location condition limits where these maps are provided.
Set Arrival Energy
New Feature
for Model S, 3, X, Y and CT
Tesla App 4.58.0+ / Available Worldwide
Enter a destination in the Tesla mobile app's location tab and choose Set Arrival Energy to specify the desired remaining battery energy at the end of the trip. This phone-based control requires the stated minimum app version.
Dynamic Headlight Leveling
New Feature
for Model 3 and CT
Specific Vehicles / Available Worldwide
For eligible Model 3 and Cybertruck vehicles, the low beams automatically change their aim to suit driving conditions and surrounding traffic. The adjustment is intended to support visibility while reducing glare for others; this entry is limited to specific vehicles.
Automatic Collision Evasion
New Feature
for Model S (New), 3, X (New), Y and CT
HW4
On the listed HW4 vehicles, the system can engage FSD (Supervised) during manual driving if it detects insufficient driver attention or a possible accidental disengagement of supervised driving. It attempts to keep the vehicle safe and continue driving. Consult the Owner's Manual for the operating details.
FSD (Supervised) v14.3.13
New Feature
for Model S (New), 3, X (New), Y and CT
HW4
The HW4 release describes revised reinforcement-learning training and a stronger vision encoder, improving responses across driving situations, rare or low-visibility scenes, three-dimensional geometry, and traffic signs. A rebuilt AI compiler and runtime based on MLIR carries a stated 20% reaction-time improvement and supports faster model iteration.
Driving refinements target unnecessary lane bias and close following. Parking selection and maneuvers become more decisive, while predicted parking locations appear as a P icon on the map. The notes also cover better responses to emergency vehicles, school buses, right-of-way violations, and other unusual vehicles.
Training changes address small animals, complex traffic signals, curved roads, yellow-light stopping, and unusual objects protruding into the driving path. Temporary system degradation can be managed by maintaining control and recovering automatically, reducing unnecessary disengagements. Driver monitoring is refined for gaze tracking, eyewear, and changing light conditions.
A unified model serves Actually Smart Summon, FSD, and Robotaxi. Drivers can select an intervention reason on the main screen after taking over, while the Self-Driving App displays distance traveled without intervention and the longest such streak. Parking choices also appear on the map at the destination.
Reasoning across behaviors beyond destination handling and pothole avoidance are identified as upcoming work. They should not be read as functions already delivered by this release.
Full Self-Driving (Supervised)
New Feature
for Model S (New), 3, X (New), Y and CT
HW4
With an attentive driver supervising, the system can start from Park, change lanes, follow navigation forks, negotiate vehicles and objects, turn, and park at the destination. All authorized users must exercise additional caution and remain ready to intervene. The vehicle does not become autonomous.
Start the function using Start Self-Driving on the display or one press of the right scroll-wheel button. It can be turned off in Autopilot Settings.
FSD (Supervised) v14.3 Lite
New Feature
for Model S, 3, X and Y
HW3
For the listed HW3 Model S, Model 3, Model X, and Model Y, v14.3 Lite uses knowledge distilled from HW4 V14, including guidance from reinforcement-learning training and offline models. The notes describe better proactive and reactive behavior in navigation, merges, forks, pedestrian encounters, traffic signals, and vehicle cut-ins.
Comfort refinements reduce unnecessary slowdowns and improve steering smoothness and lane centering. Parking, unparking, and reversing capabilities are included. Arrival Options can direct the vehicle toward a parking lot, street, or driveway, and Speed Profiles are available throughout operation.
Start Self-Driving from Park
New Feature
for Model 3 and Y
HW3
A start button appears when the driver checks are met, including sitting in the driver's seat, fastening the seat belt, and leaving the cabin camera unobstructed. With Brake Confirm on, press and release the brake before activation. When it is off, the button can let the system apply the brakes and engage; a pedal confirmation remains necessary if the driver-detection checks fail.
The setting is under Self-Driving > Brake Confirm. An attentive, authorized, licensed driver must be ready to take over because the feature is not autonomous. Only such a driver should have access to the driver's seat whenever the vehicle is outside Theater or Arcade modes.
Arrival Options
New Feature
for Model 3 and Y
HW3
Select Parking Lot, Street, Driveway, or Pull Over to choose how to arrive, including a drop-off. The system remembers arrival preferences and preferred parking positions separately for each destination.
Speed Profiles
New Feature
for Model S, 3, X and Y
HW3
FSD combines the selected driver profile with speed limits and nearby traffic when choosing speed. SLOTH provides slower speeds and more conservative lane selection than CHILL. More assertive profiles increase the maximum speed, and moving the right scroll wheel up or down changes the profile rather than an exact speed offset.
UI Improvements
New Feature
for Model 3 and Y
HW3
On the listed HW3 Model 3 and Model Y, controls for Speed Profile and Arrival Options can be adjusted directly from the Self-Driving visualization on the center display.
Security Improvements
New Feature
for Model S, 3, X, Y and CT
Available Worldwide
The release contains security fixes and improvements for the listed vehicles. No individual vulnerability or specific repair is identified in this entry.
