Bold claim: Tesla is quietly gathering real-world data in a hidden geofence to prove Unsupervised FSD safety, and this could reshape how regulators view driverless aims. But here’s where it gets controversial: the same strategy raises questions about transparency and user awareness inside public, high-traffic regions. Here’s a thorough, beginner-friendly rewrite that preserves all key details while expanding context and clarity.
Inside Tesla’s Unsupervised FSD Geofence for Data Gathering
December 16, 2025
By Karan Singh
In the fast-moving world of Tesla software, release notes don’t always tell you everything that’s happening under the hood. Updates can outpace the documented changes, and some technical moves aren’t fully disclosed to the public.
Recently, a well-known Tesla researcher, Greentheonly, found a newly named geofence region tucked into the public builds of update 2025.44. The region is titled the “Bay Unsupervised CA DMV,” and its associated map covers the entire San Francisco Bay Area. This isn’t merely a geographic boundary with a curious name—it's a strategic step for regulatory compliance.
For observers who connect the dots, the link between Unsupervised and the California DMV name implies that Tesla intends to use this geofence to collect fleet-wide data to help satisfy the state’s requirements for driverless-vehicle operation permits.
Shadow Mode
The DMV reference in the geofence name is the telltale sign. It suggests this is more than an internal testing parameter for engineers; it’s a data-logging filter crafted for regulatory reporting.
A primary hurdle for any autonomous-vehicle (AV) company in California is moving from a “Testing with a Driver” permit to a “Driverless Deployment” permit. To progress, applicants must show their system is statistically safer than a human driver within a defined design domain.
This new geofence likely helps Tesla assemble data: when a customer vehicle enters the zone, or when a Bay Area Robotaxi completes a trip, those miles can be tagged as simulated unsupervised, even if a human is still at the wheel.
This is essentially Shadow Mode in action— running behind FSD to compare actual outcomes with what would have happened without a driver supervising. That dataset is exactly what Tesla needs to claim, for example, “We drove X million Bay Area miles, and in 99.9% of those miles, our Unsupervised FSD logic made correct decisions without human intervention.”
Slowly at First
Greene’s analysis also shows Tesla didn’t expand the geofence overnight. The firmware contains evidence of a cautious, phased testing strategy that appears to have been quietly evolving for some time.
Earlier, smaller zones existed around Tesla facilities in Palo Alto, expanding from a parking lot to a single block, then to the city of Palo Alto, and now to the entire Bay Area.
Then Everywhere All At Once
The Bay Area map’s scope mirrors Tesla’s Robotaxi ambitions in the region and is notably ambitious. Competitors like Waymo pursue permits for restricted neighborhoods or specific times, but Tesla’s Unsupervised geofence seems designed to cover the Bay Area’s complex, high-traffic corridors—from San Francisco to San Jose and up to the East Bay.
By embedding the geofence into customer vehicles, Tesla can collect data whenever a vehicle operates within that zone, ensuring relevance for regulatory review. It’s not about gathering highway miles in Montana or urban miles in New York; this dataset is tailored to the Bay Area.
The Path to the Permit
It’s important to note that the existence of this geofence doesn’t mean Tesla will immediately flip a switch and enable Unsupervised FSD for customers in the Bay Area. Instead, it signals Tesla’s confidence in collecting the necessary data to argue that Unsupervised FSD is at least as safe as a human driver.
Tesla will continue gathering data, building its regulatory arguments, and advancing toward deployment in measured steps.
Looking ahead, we may see Bay Area safety monitors like those used in Austin, or even fully unsupervised operation with no one in the car. In Austin, Tesla recently removed safety monitors on some test vehicles and is testing autonomous driving with no passengers on board.
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Tesla's New Dashcam Viewer and Telemetry Data: All Features Explained
December 16, 2025
By Karan Singh
Beyond the public release of a video forensics tool, the practical impact for most owners is the updated Dashcam Viewer in-vehicle and in the app. The 2025 Holiday Update overhauled interfaces to bring some of the black-box data directly to users, while making it easier to locate the clips you want.
A notable feature is a telemetry overlay on Dashcam videos. In-vehicle or in-app viewing now lets you toggle a data layer atop the video that shows real-time vehicle metrics, including:
- Autopilot/FSD state
- Vehicle speed
- Gear selection
- Steering wheel angle
- Accelerator and brake pressure
- Turn signal usage
This overlay is switchable, providing a clean view when needed and the hard data when you want it. Since the data is embedded in the video via SEI metadata, it’s perfectly synchronized with the footage.
Note that this data overlay applies only to Dashcam footage, not Sentry Mode footage. The feature is available for both HW3 and HW4, including Intel-based vehicles that received the 2025 Holiday Update, and only for newly captured footage.
Tesla’s Dashcam Tool
The overlay is just the tip of the data iceberg. Tesla’s Dashcam Tool allows you to access additional data—such as the vehicle’s direction of travel and precise latitude/longitude—beyond what the overlay shows.
Rather than displaying all raw data directly in the overlay, Tesla provides access to the underlying values—for example, the exact percentage of accelerator pedal input and the precise steering angle.
App Dashcam Viewer
Access to the Dashcam Viewer has been streamlined in the app. It’s now reachable from the top-level menu under Roadside. The Dashcam clips themselves also display the telemetry data, but in a footer-like area.
A useful feature is that when you download a 30-second clip from the Tesla app, the telemetry data accompanies it, facilitating import into Tesla’s Dashcam tool for raw data extraction.
The viewer also shows the data in the app, though it temporarily hides after you’ve parked your car.
There’s been talk of adding more advanced filtering in the app, but for now, the vehicle UI offers new filter categories to help locate events more easily, including:
- Sentry Aware (people/motion)
- Handle Pulls (attempts to open doors)
- Sentry Panic (collisions, alarms, or movement)
- Manual Saves (user-initiated saves)
- Honk to Save (horn usage)
These filters are currently available in-vehicle and may roll out to the app later.
Storage Management
Storage management for Sentry and Dashcam data has been improved. In the vehicle, you can view dashcam storage status under Controls > Safety > Dashcam, which shows used versus total drive capacity. Tapping the info icon reveals a breakdown of usage by Dashcam clips, Sentry events, and other items.
Tesla’s 6-Seat Model Y L Receives EU Type Approval
December 16, 2025
By Karan Singh
Tesla introduced the Model Y L in China in August 2025, targeting families needing more space. The big question was when the longer, more luxurious model would reach other regions.
In the Q3 2025 Earnings Call, Elon Musk suggested a late-2026 arrival might be possible. Recent type-approval documents from the Dutch authority (RDW) indicate regulatory clearance to bring the 6-seat Model Y L to Europe.
The Model Y L offers features not found on other models, such as powered armrests and ventilated phone chargers. A comparative overview of Model Y L, Model Y, and Model X highlights several differences, especially in interior layout and comfort features.
The Model Y L is structurally distinct from the standard Model Y due to an extended wheelbase and a true 2-2-2 seating arrangement, with two independent captain’s chairs in the second row and a center aisle to access the rear seats.
Battery & Performance
RDW documents reveal European powertrain specifics for the version headed to Europe: an 88.2 kWh battery, rated at roughly 681 km (about 423 miles) WLTP on 19-inch wheels, and a continuous damping suspension similar to the Model Y Performance for a smoother ride.
Release Date
Elon Musk hinted at a late-2026 arrival, but EU type approval typically precedes launch by a few months. That suggests a late Q1 2026 European launch for the Model Y L.
Bottom line: the Model Y L positions itself as a true larger-family electric SUV with modern comfort features and a longer wheelbase, offering a more affordable alternative to the Model X while expanding Tesla’s lineup in global markets.
Thoughts to Consider
- Does embedding regulatory-focused geofence data into consumer vehicles blur the line between testing and everyday use?
- Should regulators require clearer disclosure about data-logging targets in geofenced areas where drivers may be unaware of data collection?
- Is the pursuit of driverless deployment readiness worth the potential trade-offs in transparency or driver awareness?
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