Tesla’s 2026.2.3 update came with more hidden features than initially announced, catering to the tech-savvy Tesla owners. Among these undocumented features are new FSD data trip weights in Service Mode for Hardware 3 (HW3) Tesla vehicles.
Service Mode, previously exclusive to service personnel, now allows customers to access Autopilot Trip Weights after the update. This feature indicates that the vehicle is gathering and uploading FSD AI data in shadow mode, a functionality previously limited to HW4/AI4 vehicles.
Furthermore, the update included automatic battery recalibration, resulting in an instant increase in the gross available range for some Tesla owners. Typically, recalibrating a Tesla’s battery requires following specific instructions to maintain an accurate range estimation. However, the 2026.2.3 update seems to have resolved range degradation issues caused by software updates.
Matrix headlights also received improvements in behavior and function, with the vehicle now sensing light and reflections more effectively. Additionally, the automatic battery recalibration feature has reportedly restored lost range on Model Y vehicles with LFP battery packs.
Notably, the Navigation Data version information no longer displays extra build numbers, showing only the main version and regional code after the update. This change is undocumented but noticeable to keen-eyed Tesla owners.
In a video shared by a Tesla owner, the Autopark feature demonstrated increased confidence and smoothness in automatically parking after the 2026.2.3 update. The vehicle’s performance in parking situations notably improved, showcasing the benefits of the update.
Overall, the 2026.2.3 update brought significant enhancements and hidden features that cater to the more technically inclined Tesla owners. These subtle changes and improvements contribute to the overall user experience and functionality of Tesla vehicles.