Update 2026.21.6 (FSD 14.1 Lite & 14.3.7) - Release Notes

Statistics Overview

Number of Cars
50
Percent of Fleet
0.4%
Installs Pending
0
Rollout Yesterday
-1
Rollout Today
-3

This update includes FSD v14.1 Lite. The release notes for FSD remain the same and this release likely focuses on bug fixes such as reversing issues, and potential overheating issues. This update also includes FSD v14.3.7 for HW4 vehicles.

FSD (Supervised) v14.1 Lite

Tesla FSD (Supervised) v14.1 Lite feature in update 2026.21.6
HW3
車型:
3
Y
HW3
此功能的描述目前僅提供英文版。

FSD (Supervised) v14.3.7

Tesla FSD (Supervised) v14.3.7 feature in update 2026.21.6
HW4
車型:
S
3
X
Y
CT
HW4
此功能的描述目前僅提供英文版。

Full Self-Driving (Supervised) v14.3.7 includes:

- Upgraded the Reinforcement Learning (RL) stage of training the FSD neural network, resulting in improvements in a wide variety of driving scenarios.

- Upgraded the neural network vision encoder, improving understanding in rare and low-visibility scenarios, strengthening 3D geometry understanding, and expanding traffic sign understanding.

- Rewrote the AI compiler and runtime from the ground up with MLIR, resulting in 20% faster reaction time and improving model iteration speed.

- Mitigated unnecessary lane biasing and minor tailgating behaviors.

- Increased decisiveness of parking spot selection and maneuvering.

- Improved parking location pin prediction, now shown on a map with a P icon.

- Enhanced response to emergency vehicles, school buses, right-of-way violators, and other rare vehicles.

- Improved handling of small animals by focusing RL training on harder examples and adding rewards for better proactive safety.

- Improved traffic light handling at complex intersections with compound lights, curved roads, and yellow light stopping — driven by training on hard RL examples sourced from the Tesla fleet.

- Improved handling for rare and unusual objects extending, hanging, or leaning into the vehicle path by sourcing infrequent events from the fleet.

- Improved handling of temporary system degradations by maintaining control and automatically recovering without driver intervention, reducing unnecessary disengagements.

- Improved driver monitoring system sensitivity with better eye gaze tracking, eye wear handling, and higher accuracy in variable lighting conditions.

- Unified the model between Actually Smart Summon, FSD, and Robotaxi for more capable and reliable behavior. (New in FSD v14.3.2 for non-Cybertrucks, New in FSD v14.3.4 for the Cybertruck)

Actually Smart Summon max speed is now increased to 8mph (13km/h).(Added in FSD v14.3.3, not available on Cybertruck)

- Help Tesla improve Self-Driving by selecting an intervention reason on the main screen after taking over. (New in FSD v14.3.2)

You can now see distance traveled in FSD (Supervised) without an intervention. The Self-Driving App will also show your longest intervention-free streak. (Added in FSD v14.3.3)

- Parking options now display on the map when arriving at your destination.(Added in FSD v14.3.4)

Upcoming Improvements:

- Expand reasoning to all behaviors beyond destination handling.

- Add pothole avoidance.

Actually Smart Summon

Tesla Actually Smart Summon feature in update 2026.21.6
車型:
CT
此功能的描述目前僅提供英文版。

Full Self-Driving (Supervised)

Tesla Full Self-Driving (Supervised) feature in update 2026.21.6
HW4
車型:
S
3
X
Y
CT
HW4
此功能的描述目前僅提供英文版。

Start Self-Driving from Park

Tesla Start Self-Driving from Park feature in update 2026.21.6
HW3
車型:
3
Y
HW3
此功能的描述目前僅提供英文版。

Arrival Options

Tesla Arrival Options feature in update 2026.21.6
HW3
車型:
3
Y
HW3
此功能的描述目前僅提供英文版。

Speed Profiles

Tesla Speed Profiles feature in update 2026.21.6
HW3
車型:
3
Y
HW3
此功能的描述目前僅提供英文版。

UI Improvements

Tesla UI Improvements feature in update 2026.21.6
HW3
車型:
3
Y
HW3
此功能的描述目前僅提供英文版。

Full Self-Driving (Supervised)

Tesla Full Self-Driving (Supervised) feature in update 2026.21.6
HW3
車型:
3
Y
HW3
此功能的描述目前僅提供英文版。

Camera Preview

Tesla Camera Preview feature in update 2026.21.6
全球可用
HW3
HW4
車型:
New S
3
New X
Y
CT
HW3
HW4
此功能的描述目前僅提供英文版。

Statistics Overview

Number of Cars
50
Percent of Fleet
0.4%
Installs Pending
0
Rollout Yesterday
-1
Rollout Today
-3

Details

FSD Version

FSD 14.1 Lite & 14.3.7

Release Date

August 9, 2026