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Tesla HW3 Owners: OTA Updates, Capabilities & Support Roadmap

Review Report July 5, 2025
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Review Point

  • An examination of Tesla’s official and unofficial support mechanisms for vehicles equipped with Hardware 3, based on the latest OTA release notes, leaked compatibility info, and observed FSD progress.
  • Draws on the 2025.20.3 release notes (d15), Grok UI leak (d27), FSD performance data (d30), and owner-facing commitments (d29).

1. Latest Over-the-Air Updates for HW3

  • Tesla initiated the rollout of the 2025.20.3 over-the-air (OTA) software update, enhancing the capabilities of Hardware 3 (HW3) vehicles significantly. Initially released to employees, this update began its wider deployment on June 12 and peaked shortly thereafter, with approximately 60-70% of Tesla vehicles globally having installed the update by June 17, 2025. The key features integrated into this release include crucial security improvements, camera view adjustments, and the introduction of new functionalities such as the 'Trunk Open Warning' and a PIN requirement for remote starts.

  • Among the noteworthy updates, enhanced camera functionalities allow drivers to toggle between the original narrow view and a new wider view, thereby improving visibility, especially for blind spots. Furthermore, the addition of a visual and text warning for open trunks not only enhances safety but also allows drivers to decide whether to proceed with the trunk open or close it before driving, reducing the risk of potential vehicle damage. These adjustments reflect Tesla's commitment to bolstering the safety features associated with HW3 vehicles.

  • The update also introduces Supercharger Live Activity, which enables drivers to monitor their charging sessions in real-time via the Tesla app on their smartphones and Apple Watches. This feature is a significant enhancement for users relying on Tesla's extensive Supercharger network, providing them with better control and visibility over their charging activities.

  • Finally, it is important to note that while the update included numerous improvements, some features remain restricted or unavailable to HW3 vehicles due to potential hardware limitations. Tesla's ongoing software updates are central to maintaining competitive advantage and enhancing user experience, but owners should stay informed on compatibility specifics as new updates continue to evolve. The transition to 2025.20.3 exemplifies Tesla’s strategy of iteratively enhancing vehicle capabilities through software, a pivotal aspect of their product ecosystem.

2. Native Feature Compatibility & Limitations

  • As Tesla continues to roll out software updates for its vehicles, understanding the native feature compatibility for Hardware 3 (HW3) models is crucial. Recent insights from leaked data and performance reports highlight a mixed landscape for HW3 vehicles, particularly when it comes to advanced driver-assistance systems (ADAS) and the anticipated Full Self-Driving (FSD) features.

  • Currently, HW3 vehicles are capable of supporting several ADAS features, albeit with limitations. Notably, the core functionalities associated with Autopilot, such as lane-keeping assistance and traffic-aware cruise control, remain operational. However, the lack of access to the latest FSD iterations has raised concerns among HW3 owners. Tesla's previous assurances of gradual upgrades toward full autonomy have not materialized as the brand has shifted its focus toward its HW4-equipped models.

  • Performance data indicates that while HW3 models can execute some advanced functionalities without issues, they do not possess the computational power necessary for fully autonomous driving as promised. For instance, Tesla’s FSD beta program, praised for its advancements, is exclusive to HW4 models, leaving HW3 vehicles reliant on older software versions with fewer capabilities. This discrepancy is evident as HW3 vehicles have not received substantial updates aimed at transitioning them toward true autonomy, suggesting a growing divide between HW3 and its successor.

  • Furthermore, specific features integrated into the latest software updates, including the Grok AI assistant, are unlikely to function on HW3 vehicles. The Grok integration, which promises an enhanced user experience through AI-based interaction, relies on more advanced computing architecture available in HW4 models only. Owners of HW3 vehicles thus face a scenario where certain features not only remain limited but may eventually become entirely incompatible as Tesla advances its software capabilities.

  • In summary, HW3 vehicles continue to hold a baseline level of functional support regarding Tesla's ADAS, but the lack of forward momentum in native feature updates and external advancements such as Grok integration places HW3 owners at a significant disadvantage. Tesla's strategic decisions regarding HW3 support will be essential to monitor as they ultimately dictate the future usability and resale value of these vehicles.

3. Third-Party and Unofficial Workarounds

  • As Tesla's official support for Hardware 3 (HW3) owners has seen some delays, many users have turned to third-party and unofficial workarounds to unlock additional functionalities. This emerging gray market has resulted in a variety of modification modules, primarily targeting Tesla's Advanced Autopilot (AP) and Full Self-Driving (FSD) features. According to recent reports, certain e-commerce platforms offer these modules at prices ranging from a few hundred yuan to a thousand yuan, substantially cheaper than the official fees for Tesla's enhanced features that range from 32, 000 to 64, 000 yuan. This gap in pricing has attracted the interest of cost-conscious Tesla owners looking for enhanced driving capabilities without the associated costs of official upgrades.

  • Notably, one particular product, marketed as the 'Tesla Multifunctional Module, ' has achieved sales of 69, 000 units and has garnered various positive reviews online, with users claiming it allows for a 'hands-free driving experience.' However, there are significant concerns regarding the safety and effectiveness of these unofficial products. For example, modifications made by these modules primarily enhance basic functionalities, often simplifying the experience of switching from Adaptive Cruise Control (ACC) to Autopilot without manual reactivation or removing warning prompts that alert drivers to maintain contact with the steering wheel. Still, these modules fail to replicate the full features of Tesla’s official Enhanced Autopilot, such as intelligent parking and advanced summoning capabilities.

  • Compounding the issue, some owners have reported frightening incidents after using these modifications, emphasizing the risks involved when relying on potentially unsafe products. The counterfeit modifications are marketed with promises of providing high-end features at a fraction of the cost, but such claims often do not hold true when subjected to rigorous safety assessments. Tesla has also voiced concerns regarding these modifications, highlighting how they can void warranties and impact vehicle performance and safety. Tesla owners considering these gray-market solutions should weigh the risks against the potential benefits, particularly in light of the official support that remains under development. As the automotive market evolves, the implications of using such third-party solutions will be paramount not only for current usability but also in terms of resale value and manufacturer support moving forward.

4. Tesla’s Future Roadmap and Owner Communications

  • Tesla's commitment to its Full Self-Driving (FSD) features and hardware support has come under scrutiny, particularly for owners of vehicles equipped with Hardware 3 (HW3). Recent developments reveal a disappointing stagnation in advancements for HW3, highlighting issues with both software support and public communications from Tesla leadership. Elon Musk, the CEO of Tesla, has historically assured customers that software updates will unlock full autonomy, yet many HW3 owners now face uncertainty regarding their vehicles' future capabilities.

  • Based on insights from recent analyses, the last significant update for Tesla's FSD, version 13, was rolled out in December 2024, with Musk suggesting it would improve the performance of HW3 vehicles significantly. However, evidence indicates this update brought only marginal improvements, achieving a mere 2x increase in miles between critical disengagements, far short of the promised 5-6x improvement. As a result, owners have expressed frustration due to the lack of transparency and substantial updates for their vehicles, with many being stuck on older software versions for several months.

  • Moreover, in January 2025, Musk indicated that HW3 hardware would not facilitate the anticipated unsupervised driving capabilities that were initially promised, effectively rendering the HW3 models obsolete concerning advanced autonomy features. This revelation not only affects the owners' expectations but also raises concerns about the long-term support that Tesla plans to provide for those who invested heavily in the FSD package, costing up to $15, 000.

  • Public sentiment among HW3 owners is shifting towards disappointment and skepticism as promises of future updates and enhancements remain vague. Many owners are now considering their options, including potential class-action lawsuits, as they feel misled by Tesla's initial claims. Reports emphasize that some owners are exploring alternatives or even switching brands, jeopardizing Tesla's previously strong customer loyalty. In this context, it is essential to monitor Tesla’s future roadmap closely concerning HW3 support and how the company addresses its commitment to current customers while developing new features for HW4 models.

  • The ongoing robotaxi pilot program in Austin, Texas, has also redirected Tesla's focus and resources away from improving FSD for existing HW3 vehicles. This initiative operates under highly controlled conditions, highlighting a shift in Tesla's strategy from fulfilling the original promise of autonomy for all vehicles to developing a new mobility service. The implications for HW3 owners regarding future updates and support remain uncertain as Tesla prioritizes its newer hardware capabilities.

  • In summary, the lack of clear communication regarding HW3 support and the ongoing development of FSD features has left many owners in a precarious position. Tesla must balance the promise of innovation with the loyalty of its existing customers, or it risks alienating a significant segment of its user base.

Key Takeaways

  • Significant Update Rollout

  • The recent OTA update (2025.20.3) enhances HW3 capabilities with notable features like wider camera views and a real-time charging monitor, benefiting approximately 60-70% of HW3 owners shortly after release.

  • Long-Term Feature Limitations

  • HW3 vehicles are limited in their ability to support newer FSD features, with significant advancements reserved for HW4 models, raising concerns over compatibility and future-proofing.

  • Reliance on Third-Party Solutions

  • With official support lagging, many HW3 owners are turning to unofficial modifications. While these alternatives can be cheaper, they come with safety risks and potential impacts on warranties.

  • Need for Clear Communication

  • Tesla’s vague communications about HW3 support and the lack of substantial updates have left many owners frustrated and uncertain about their vehicles' future, potentially damaging brand loyalty.

Glossary

  • 🔍 HW3: HW3, or Hardware 3, is Tesla’s third generation of onboard computer systems in vehicles, designed to handle advanced features like Full Self-Driving. It's important for enhancing the driving experience but has limitations compared to newer hardware.

  • 🔍 OTA Updates: OTA stands for Over-the-Air updates. This technology allows Tesla to wirelessly deliver software updates to vehicles, improving features or fixing bugs without needing to visit a service center.

  • 🔍 ADAS: ADAS, or Advanced Driver-Assistance Systems, include features that help drivers with various tasks like lane-keeping, traffic awareness, and adaptive cruise control, making driving safer and easier.

  • 🔍 FSD: FSD, or Full Self-Driving, refers to Tesla’s advanced set of features that aim to enable a vehicle to drive itself under various conditions. However, its capabilities depend on hardware and software updates.

  • 🔍 Grok AI: Grok AI is a feature in Tesla's newer models that uses artificial intelligence to enhance user interaction, making it easier for drivers to communicate and control vehicle functions through voice commands.

  • 🔍 Adaptive Cruise Control (ACC): ACC is a feature that automatically adjusts the vehicle's speed to maintain a safe distance from the car ahead. It's a step up from traditional cruise control that requires manual speed adjustments by the driver.

  • 🔍 Gray Market: The gray market refers to the buying and selling of products through unauthorized channels. In the context of Tesla, it includes unofficial modifications or enhancements for vehicles that are not provided by the manufacturer.

  • 🔍 Robotaxi: Robotaxi is a concept where autonomous vehicles operate as taxis without human drivers. Tesla is piloting this initiative to explore new mobility services, shifting focus from individual ownership to shared transportation.

  • 🔍 Critical Disengagements: Critical disengagements are moments when an autonomous driving system requires a human driver to take control for safety reasons. Fewer critical disengagements indicate better performance of self-driving features.

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