
Article By:
CleanTechnica
2026-04-06 14:01:51
Tesla Full Self-Driving History: Where It Stands Today With V12 On HW3 Cars And V14 On HW4 Cars
Summary By: eMotoX
Tesla’s Full Self-Driving (FSD) system has seen significant evolution since its early iterations in 2019, when it was primarily capable of highway driving with basic navigation and adaptive cruise control. Initially, FSD could steer on roads marked with clear lane lines and manage speed around slower vehicles, but it struggled with complex manoeuvres such as sharp turns or city street navigation. Over the past six years, the system has improved markedly, now offering reliable autonomous driving to specific addresses, handling stop signs, traffic lights, and various road features with minimal driver intervention, although certain functions like parallel parking and Summon remain underused due to reliability concerns.
The latest version available for Tesla’s Hardware 3 (HW3) vehicles is FSD Supervised v12.6.4, which, while advanced, still has limitations. It does not yet support fully autonomous garage parking or navigating large parking lots independently. Issues such as incorrect lane choices at intersections and failure to adjust speed for school zones or road dips highlight the system’s current constraints. The author notes a lack of confidence in FSD’s ability to execute complex lane changes in heavy traffic, underscoring that despite progress, driver supervision remains essential.
Tesla’s introduction of Hardware 4 (HW4) in mid-2024, equipped with more powerful computing and higher resolution cameras, has enabled the rollout of FSD Supervised v14, which has garnered positive feedback. This version significantly reduces the need for driver interventions and introduces full automation for trip beginnings and ends, including autonomous parking and unparking in garages and public lots. Test drives of HW4 vehicles demonstrated smooth lane changes in challenging traffic conditions and flawless parking, including backing into spaces without driver input, signalling a major step forward in practical usability.
Despite these advancements, some challenges persist. The author’s attempts to have the HW4 vehicle park in a tight garage space were unsuccessful, indicating that environmental factors can still limit FSD’s capabilities. Additionally, while FSD v14 reportedly can back into Supercharger stalls and navigate drive-through lanes autonomously, these features require further real-world testing for validation. Tesla continues to refine the system’s ability to handle complex end-of-trip scenarios, aiming to enhance convenience and safety for drivers.
Overall, Tesla’s FSD technology is progressing rapidly, with HW4 and FSD v14 marking a significant leap in autonomous driving functionality. However, the technology is not yet flawless, and users must remain vigilant, particularly in complex traffic environments or constrained parking situations. The ongoing development suggests that fully autonomous urban driving and parking may soon become more commonplace, but widespread adoption will depend on continued improvements in reliability and user interface accessibility.
