Tesla has released software update 2025.2.6. Most updates fix bugs, but this one adds a major feature.
Tesla has activated the in-cabin radar, a sensor that’s been in some cars for over three years but wasn’t used until now.
Why Not Vision?
Vision systems use cameras. Radar is different. It uses radio waves to measure object sizes and detect movement, even behind obstacles. This makes it more accurate than cameras, especially for spotting movement behind seats.
What Tesla Announced
Tesla recently talked about the 4D radar in the new Model Y. They said it will improve passenger safety by better-classifying passengers and improving airbag deployment.
Tesla also mentioned future plans. The in-cabin radar will detect if someone is left in the car. Since radar can sense heartbeats and breathing, it can accurately detect children.
If someone is left in the car, Tesla will notify the owner through the app, turn on the HVAC system, and even call emergency services if needed.
New Feature in Update 2025.2.6
Tesla has named this feature the “First-Row Cabin Sensing Update.” It matches what Tesla discussed in the Model Y video.
In the release notes, Tesla says:
“The first-row cabin sensing system now uses cabin radar, which is standard in all new 2025 Model Ys. Your Model Y already has the hardware, so this update brings the feature to your car.”
For now, the radar detects and classifies front-seat passengers. This could replace traditional seat sensors, cutting down on hardware and costs.
Tesla plans to expand the feature later this year. Rear-seat detection will come in Q3 2025. While Tesla highlighted this for the Model Y, it should work in all cars with the in-cabin radar.
Supported Models
Tesla’s release notes don’t specify, but the feature is coming to all Model Ys with cabin radar. Tesla started adding the radar in 2022, but availability varies by region and model. The Model 3 got the radar in its 2024 redesign, and all Cybertrucks already have it.
The redesigned Model S and Model X manuals don’t mention the radar, but some believe these cars have it too. We’ll have to wait to see if they get the update.
Right now, the feature is only for Model Ys, but it should come to other supported models soon.
This update shows Tesla improving safety and affordability through software. It’s a good example of how they keep adding value to their cars.
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