2026.38.5.6

The reinforcement-learning training stage and vision encoder are upgraded, improving rare and low-visibility situations, 3D geometry, and traffic-sign understanding. The compiler and runtime are rewritten with MLIR; the source reports 20% faster reactions. Unnecessary lane bias and minor tailgating are reduced; parking selection and P-icon location prediction improve, as do responses to emergency vehicles, school buses, right-of-way violators, rare vehicles, and small animals. The update improves complex traffic lights, unusual objects extending into the path, recovery from temporary degradation without driver intervention, and eye-gaze monitoring in variable lighting. Drivers can select an intervention reason; the app shows distance and the longest intervention-free drive, and parking options appear on the map at the destination. The notes separately list future improvements: extending reasoning beyond destination selection and pothole avoidance.

Self-Driving statistics are available under Controls > Self-Driving. Start it with a touchscreen tap from Park or during a drive; adjust Speed Profile and Arrival Options directly in the Self-Driving visualization on the center display.

FSD Streaks support is added for legacy Model S and Model X. The source specifies Intel and HW3 compatibility and marks the change undocumented.

Choose Carpark, Indoor Carpark, Street, Driveway, or Pull Over at arrival. Arrival preferences and preferred parking positions are saved per destination; the reasoning model selects a suitable default and the navigation pin adjusts to the selected arrival option.

FSD (Supervised) selects speed using the driver profile, speed limit, and surrounding traffic. Driver profile has a stronger effect; the steering-wheel scroll wheel changes the Speed Profile rather than the precise speed-limit offset. SLOTH (slower and more conservative than CHILL) and MAD MAX (faster than HURRY) are added.

The Model Y L Launch Series badge animates when tapped; marked undocumented.

Service Mode adds a touchscreen language switch and HV isolation details; the source lists both changes for all models. Marked undocumented.

Brake confirmation for the Start Self-Driving button is off by default. When disabled, Self-Driving can be engaged without pressing and releasing the brake; it can be enabled under Self-Driving > Brake Confirm.

The update includes security fixes and improvements. Listed for Model S, 3, X, Y, and Cybertruck; available worldwide.

Adds a Ghost vehicle visualization, Trick or Treat sounds and lights, scheduled light shows, and a photobooth. Requires AMD; listed for newer Model S/X, Model 3/Y, and Cybertruck.

Intel vehicles receive Halloween wraps and license plates, but not Halloween visualizations, Trick or Treat, or the lock sound. Marked undocumented.

Set desired arrival energy from the Tesla app; version 4.58.0 or later is required.

The beta label is removed from Grok. The source marks this undocumented and lists it as available worldwide.