Tesla is rolling out software update 2026.38.5.10, introducing Full Self-Driving (Supervised) v14.3.13 for supported AI4 vehicles and FSD v14.3 Lite for vehicles equipped with Hardware 3 (HW3).
First recorded on October 20, 2026, the update also includes changes to Speed Profiles, arrival preferences, the in-car visualization, Supercharger site maps, and the Grok interface.
However, not every feature is available to every Tesla owner. Hardware generation, vehicle model, software version, regional availability, and rollout timing all matter.
Here is what Tesla owners should know about the latest update, including the differences between HW3 and HW4, how the new driving preferences work, and which features are worth checking after installation.
1. Tesla Software Update 2026.38.5.10: What's New?
According to the 2026.38.5.10 release notes tracked by Not a Tesla App, the update includes several new features and changes.
| Feature | What changes | Availability notes |
|---|---|---|
| FSD Supervised v14.3.13 | Updated AI4 driving model and behavior | Supported HW4/AI4 vehicles |
| FSD v14.3 Lite | Brings selected v14 improvements to HW3 | Supported HW3 vehicles |
| Speed Profiles | More flexible driving-style preferences | Listed in the HW3 v14.3 Lite notes |
| Arrival Options | Choose where FSD should stop or park | Listed for supported HW3 Model 3 and Model Y vehicles |
| Start Self-Driving from Park | Adds an on-screen activation option | Listed for supported HW3 Model 3 and Model Y vehicles |
| Supercharger Site Maps | Detailed layouts and live stall status at selected locations | Limited to supported vehicles and participating sites |
| Visual Updates | Improved vehicle imagery and parked-scene environment | Listed for supported AMD and HW3 Model 3/Y vehicles |
| Grok interface | The Beta label has been removed | Reported as an undocumented change |
The rollout is still in its early stages. A vehicle that has not received the update is not necessarily experiencing a problem.
Also, these features should not be treated as a single package guaranteed to appear on every car running software branch 2026.38.5.10. Check the release notes and feature availability for your specific vehicle.
2. FSD 14.3.13 vs. FSD 14.3 Lite: What's the Difference?
One of the most important distinctions in this release is the separation between the HW4 and HW3 versions of FSD.
FSD 14.3.13: Improvements for HW4/AI4
The release notes list FSD 14.3.13 for supported AI4 vehicles, including eligible versions of the Model 3, Model Y, Model S, Model X, and Cybertruck.
Tesla's published update notes describe several areas of improvement:
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Neural-network training: An upgraded reinforcement-learning stage intended to improve behavior across a wider range of driving situations.
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Visual perception: An updated vision encoder designed to improve understanding of unusual objects, low-visibility conditions, three-dimensional geometry, and traffic signs.
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Driving behavior: Changes intended to reduce unnecessary lane biasing and minor tailgating.
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Parking: More decisive parking-space selection and maneuvering, with parking-location predictions displayed on a map.
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Unusual road situations: Improvements targeting emergency vehicles, school buses, traffic-light handling at complex intersections, and small animals.
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Driver monitoring: Changes to gaze tracking, eyewear handling, and monitoring in different lighting conditions.
The release notes also describe an MLIR-based rewrite of the AI compiler and runtime, reporting a 20% faster reaction time.
That figure is Tesla's stated improvement, not a guarantee that every real-world maneuver will be 20% faster or that the vehicle will perform better in every situation.
FSD 14.3 Lite: Selected improvements for HW3
HW3 vehicles receive FSD 14.3 Lite rather than the full v14.3.13 build.
The release notes describe a process that distills intelligence from the HW4 v14 system into a version designed for HW3 hardware.
The listed improvements include:
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Better responsiveness in navigation, merges, forks, pedestrian interactions, traffic lights, and vehicle cut-ins.
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Fewer unnecessary slowdowns and smoother steering in ordinary driving situations.
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More consistent lane centering.
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Parking, unparking, and reversing capabilities.
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Arrival Options for selecting where the vehicle should stop.
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Speed Profiles that remain available for driving-style adjustments.
This is an important distinction for existing owners: FSD 14.3 Lite brings selected v14 capabilities to HW3, but it should not be described as identical to the HW4 version.
The release notes do not establish that every HW4 feature or future capability will be available on HW3.
How to check your hardware and software version
Before comparing features, check the software version shown in your vehicle and identify which hardware generation your car uses.
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Open the vehicle's software screen.
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Check the installed software version and release notes.
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Confirm the vehicle's Autopilot computer or hardware information using the available vehicle details and Tesla support documentation.
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Compare your vehicle's actual feature list with the relevant HW3 or HW4 release notes.
Do not rely on model year alone to determine hardware compatibility.
3. Speed Profiles: A More Flexible Way to Adjust FSD Driving Style
Speed Profiles are one of the practical changes highlighted in the HW3 FSD 14.3 Lite notes.
The system now determines an appropriate speed using a combination of the driver's selected profile, the speed limit, and surrounding traffic.
The update also introduces a new SLOTH profile, described as slower and more conservative in lane selection than CHILL.
The notes state that the driver's selected profile has a stronger influence on behavior: more assertive profiles can permit higher maximum speeds.
What does this mean for drivers?
Speed Profiles are intended to let drivers influence how FSD behaves rather than relying exclusively on a precise speed-offset setting.
For example, a driver who prefers a more conservative driving style may want to compare the available profiles during ordinary, low-complexity trips.
However, the selected profile does not guarantee a particular speed. Traffic, road conditions, speed limits, and other system constraints still matter.
A change to the steering-wheel controls
The release notes state that the right scroll wheel's up/down actions now adjust the Speed Profile instead of the precise maximum-speed offset in mph or km/h.
Drivers who are accustomed to the previous controls should review the new behavior before using FSD.
The notes specifically document these Speed Profile changes under HW3 FSD 14.3 Lite. Owners should check their own vehicle's interface rather than assume the same controls appear identically on every HW4 vehicle.
4. Arrival Options: Where Should Your Tesla Stop?
Arrival Options let drivers select a preferred stopping or parking location at the destination.
The listed choices include:
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Parking Lot
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Street
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Driveway
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Pull Over
The release notes describe these as options for supported HW3 Model 3 and Model Y vehicles.
They also state that arrival preferences and preferred parking positions can be saved for individual destinations.
This can be useful when a destination has several possible stopping locations or when the driver prefers a particular type of drop-off.
For example, a driver arriving at a home may prefer a driveway, while another destination may be better suited to a parking lot or a safe street-side stopping location.
Availability and behavior depend on the vehicle's installed software and supported configuration.
Important: Arrival Options do not guarantee that the vehicle can enter a particular driveway or reach a specific parking space. The driver must remain attentive and take control whenever necessary.
5. Supercharger Site Maps: See Stall Layouts and Availability
Tesla's Supercharger Site Maps feature provides a more detailed view of selected charging stations.
When navigating to a participating location, drivers can tap View Site Map to see the site's layout. At supported pilot locations, the interface can display live stall status, including:
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Available
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Occupied
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Down
This information can help drivers understand a station's layout before choosing a charging stall.
However, the feature is not a guarantee that every Supercharger location will display a site map. The release notes specify selected locations and a pilot rollout.
The availability information also describes reported stall status, not a guarantee that a stall will remain available when the vehicle arrives.
Which vehicles support Supercharger Site Maps?
The release notes list supported Intel-equipped legacy Model S, Model 3, legacy Model X, and Model Y vehicles.
This is a useful reminder that feature eligibility does not always follow a simple newer-is-better rule. Some navigation features can be supported on older hardware even when other features require newer processors.
Check the release notes for your specific vehicle and region to confirm availability.
6. Grok No Longer Shows the Beta Label
Another change recorded in version 2026.38.5.10 is the removal of the Beta label from Grok.
Not a Tesla App classifies this as an undocumented change rather than a feature explicitly described in the main release notes.
The change is therefore best described as a reported interface update.
Removing a Beta label does not, by itself, prove that Grok has received a major new AI model, that every previous limitation has been resolved, or that the assistant is available on every Tesla.
Owners should check their vehicle's interface and supported configuration.
If Grok is available, its actual functions may still depend on software version, market, connectivity, account requirements, and other eligibility conditions.
For now, the confirmed point is the reported removal of the Beta label—not a verified overhaul of Grok's capabilities.
7. Other Changes Worth Checking
The update tracker also lists several additional changes.
Visual Updates
Supported Model 3 and Model Y vehicles with AMD or HW3 hardware receive higher-quality vehicle imagery on the center display and an enhanced parked-scene environment.
This is a visual-interface change rather than a change to the physical touchscreen.
Emergency Drive Away
The update documents an Emergency Drive Away function for supported vehicles.
It allows the driver to shift into Drive while a Supercharger cable remains connected, but it is intended only for emergencies.
Driving away with the cable attached can damage both the vehicle and charging equipment, potentially resulting in repair costs. The release notes also state that activating the feature shares short recordings from the vehicle's cameras with Tesla.
This is not a shortcut for ending a normal charging session. Drivers should disconnect the charging cable properly whenever possible.
Automatic Collision Evasion
The release notes list Automatic Collision Evasion for supported HW4 vehicles.
The described behavior can activate FSD Supervised in certain circumstances when the vehicle is being driven manually and the system detects insufficient driver attention or a possible unintended disengagement.
The feature is subject to the vehicle's requirements and operating conditions. It should not be treated as a replacement for attentive driving or a guarantee that every collision will be avoided.
Dynamic Headlight Leveling
Dynamic Headlight Leveling is also listed for specific vehicle configurations, including certain Model 3 and Cybertruck variants.
The feature automatically adjusts low-beam aim based on driving conditions and nearby traffic, with the goal of improving visibility while reducing glare for other road users.
Its availability is vehicle-specific, so not every Model 3 or Cybertruck should be assumed to support it.
8. How to Check for Tesla Update 2026.38.5.10
If you want to see whether the update is available for your vehicle:
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Park safely and open the vehicle's software screen.
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Check the installed software version.
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Review the available update information.
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If an update is offered, follow the on-screen instructions.
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After installation, check which features are actually available in your vehicle.
Tesla software updates are distributed in stages. The appearance of a new version in an update tracker does not mean it has been delivered to the entire fleet.
If the update has not appeared, continue checking the vehicle's software screen rather than assuming the vehicle is ineligible.
Feature availability may also differ from one vehicle to another even when the displayed software version is similar.
Frequently Asked Questions
What is the latest Tesla FSD version in update 2026.38.5.10?
The update tracker lists FSD Supervised v14.3.13 for supported HW4/AI4 vehicles and FSD v14.3 Lite for supported HW3 vehicles. The update was first recorded on October 20, 2026.
Does FSD 14.3.13 work on HW3?
The listed v14.3.13 build is for HW4/AI4. HW3 receives the separate FSD 14.3 Lite version, which brings selected v14 improvements to the older hardware.
What is the new SLOTH Speed Profile?
SLOTH is a new driving-style profile described as slower and more conservative in lane selection than CHILL. The update also gives the selected profile a stronger influence on driving behavior.
Do Supercharger Site Maps work at every Tesla charging station?
No. The release notes describe detailed site maps and live stall status at selected pilot locations. Availability depends on the station and supported vehicle configuration.
Does removing Grok's Beta label mean it has new capabilities?
Not necessarily. The change is recorded as an undocumented interface update. Removing the label alone does not confirm a new AI model or a complete set of new functions.
Does FSD 14.3.13 make a Tesla fully autonomous?
No. FSD remains a supervised driver-assistance system. The driver must remain attentive and be prepared to take control at all times.
Final Thoughts
Tesla software update 2026.38.5.10 is notable because it combines an AI4 FSD revision with a separate HW3 Lite release and several practical interface changes.
For HW4 owners, v14.3.13 focuses on improvements to perception, driving behavior, parking, and unusual road scenarios.
For HW3 owners, v14.3 Lite adds selected v14 improvements, including parking capabilities, Arrival Options, and expanded Speed Profile controls.
Supercharger Site Maps and the reported Grok interface change are also worth checking, but their availability and scope should not be overstated.
The most useful next step is to check your own vehicle's software version, hardware configuration, and available features. As more owners receive the update, independent real-world testing should help establish how these changes perform in everyday driving.
FSD remains supervised, and drivers must stay attentive and ready to take over.
