Tesla recently published an article on X detailing some of the improvements they’ve made to the Supercharging ecosystem to make it better for everyone. And boy, have they made a lot of improvements just this year - and with the recent announcement of the V4 Supercharger Cabinets capable of 500kW, it's going to get even better next year.
Since Tesla began opening its Supercharger sites to approved third parties, one key point of contention has been the charge port location. Every Tesla has its charge port on the rear left side of the vehicle, behind the driver. Superchargers before V4 rely on this location, and thus, non-Tesla vehicles with a port in a different location sometimes have to take up two stalls to charge.
Supercharger Improvements
Tesla has been making many improvements recently, even looking beyond the more powerful V4 cabinets coming in early 2025. Let’s take a look at all the work they’ve done and what’s coming up as well.
Cars Plugged In & Faster Data
One of the key updates has been to improve the overall accuracy of stall availability - the backend system refreshes fairly quickly, providing an accurate stall count - which helps to improve navigation and trip planner improvements too. Tesla announced that it’s now able to detect what type of EV is plugged in so that it can better assess charging estimates and determine if a vehicle may be taking up two stalls and automatically takes this into account when routing vehicles.
Max de Zegher, Director of Supercharging North America, mentioned on X that the stall availability now refreshes every 15 seconds, and with mapped Supercharger site layouts, Tesla can see which stalls are available.
The updated stall availability algorithm is a big improvement, with nearby refresh rates now every ~15 seconds. We know car types plugging in and mapped out Supercharger site layouts, to know which stall is not available at short cable sites. Your Tesla's touchscreen now shows… https://t.co/5PF7wruNhQ
As part of the V4 Supercharger stall upgrade, Tesla has been deploying stalls with longer cables and stalls with built-in adapters for CCS vehicles. These new longer cables mean that Tesla’s Supercharger sites can serve more vehicle charge port layouts without having to block a stall. That increases site availability, and Tesla expects to have more V4 charging stalls in the next 18 months than it has V2 and V3 stalls today. Some of these will be due to new locations, but Tesla is also updating current Supercharger locations.
Modifying Current Superchargers
Tesla has also been working to modify its site planning and layouts—both sites that are already built and sites still in planning. Over 1,500 sites have been altered to better serve drivers by widening the parking spaces, ensuring that drivers never have to use more than two ports to charge.
Pull-Through Trailer Chargers
Another big one is the deployment of pull-through Supercharger Trailer spots. These spots mean you don’t need to unhitch your trailer from your vehicle before supercharging, which is excellent for vehicles like the Cybertruck when you’re towing a trailer and need to charge up before continuing on your trip. Tesla update 2024.44 also adds the ability to see which Superchargers have trailer-friendly charging stalls.
The Pull-Through Priority Signs
Not a Tesla App
Standardized Port Location
The last - but one of the most important - things that Tesla is doing is encouraging manufacturers to move their charge ports to either the rear left or front right of vehicles, thereby helping to improve compatibility with Supercharger sites. Manufacturers have already taken steps to standardize in Europe, but these changes really haven’t rolled out globally yet. Rivian recently announced that the charge port for their upcoming R2 and R3 vehicles will be in the rear driver’s side, matching Tesla’s port location.
We hope to see more improvements in this space, especially as NACS becomes the de facto standard in North America.
Following the latest meeting of the United Nations Economic Commission for Europe (UNECE), which decides safety regulations for vehicles, it seems that Tesla will be facing further delays and regulatory hurdles in Europe. The Telegraph in the UK reported on this story yesterday following the conclusion of UNECE discussions.
Tesla has been waiting for regulatory approval in Europe, which would pave the way for wider FSD deployment across the EU and other countries that adhere to UNECE regulations.
Regulatory Shut Down
The latest round of delays stems from efforts by the UK, Norway, Sweden, and the Netherlands to push for additional testing and trials of autonomous systems. Progress toward approving vehicle autonomy in Europe has faced repeated setbacks, and this latest hurdle casts further doubt on the prospects for European customers awaiting FSD.
Regulatory changes that initially seemed on track to ease restrictions were stalled in September 2024 when the UK’s Department for Transport raised concerns, stating:
“While [a driver assistance system] may help reduce collisions, it may also introduce new safety risks.”
This perspective sounds like it comes from someone who has never actually used an advanced driver assist system—whether from Tesla or its competitors.
The UNECE, which oversees vehicle regulations in Europe, is set to meet again in June and November. However, based on the agenda from the most recent session, autonomy does not appear to be on the docket for the June meeting.
What This Means for FSD in Europe
Simply put, FSD isn’t coming to Europe anytime soon. While Tesla has some potential workarounds, none are ideal.
One option would be for Tesla to pursue regulatory exemptions on a nation-by-nation basis—requesting approval for each and every FSD feature separately. That means filing exemptions for lane changes, left and right turns, highway exits, and countless other functions. The bureaucratic process would be exhausting, requiring approval from each country individually.
Alternatively, Tesla could release a heavily restricted version of FSD that complies with current UNECE regulations. However, this would likely make the system impractical, as drivers would have to manually confirm every single action—down to something as simple as adjusting speed—using a physical button press.
For now, Europe’s regulatory framework remains a major roadblock to autonomy. Unless there’s a significant shift in policy, it’s unlikely that FSD will launch in Europe in 2025 as planned.
Tesla recently started rolling out an update that enabled the cabin radar in recent Model Ys and added support for first-row cabin sensing. This functionality not only lets Tesla replace the seat occupancy sensors in the front seats but also gives them a better idea of the size of the passengers — critical information when an accident occurs.
However, Tesla has now revealed that it won’t just be recent versions of Model Y that will receive these updates. Other recent vehicles also have a dormant in-cabin radar that will be activated in a future update.
Child Presence Detection
This front-row occupant sensing is only half of the update. Tesla also plans to add support to the rear seats that will let it detect occupants left in the vehicle. In a post on X, Tesla stated that at least 37 children die per year from heatstroke, just in the United States, according to the NHTSA. Tesla’s cabin radar will help reduce the number of deaths by detecting children left in the vehicle and alerting the owner or turning on the HVAC system.
The new radar has several safety-focused features, and they’re all designed to help protect someone left behind in a vehicle. First up - the radar will detect and classify passenger sizes to determine which airbags to deploy dynamically, helping to reduce injuries from shorter individuals sitting up front.
Additionally, the radar can differentiate an adult from a child or baby - and automatically and dynamically make the necessary safety adjustments on the fly. Tesla will also be able to detect heart rate and breathing through the radar - and has a series of safety steps it can take from here.
If a child or baby is detected being left behind in the vehicle, the Tesla app will immediately notify you and turn on the HVAC system to ensure their safety. In the case of an emergency, the vehicle will automatically call emergency services and report its location.
As a reminder, while Tesla vehicles outside of the United States support eCall, vehicles within the US cannot call 911 unless a phone is connected to the vehicle via Bluetooth. We hope that Tesla looks to add similar capabilities in North America to improve safety capabilities.
Supported Models
Although the cabin radar has only been activated in Model Ys produced in the last couple of years, Tesla said in their post on X that the radar is also available in recent Model 3s and the Cybertruck.
We did a little digging and confirmed that the part numbers for the cabin radar are the same for the 2024+ Model Y, 2024+ (new) Model 3, and the Cybertruck. So, these vehicles should also receive the latest cabin radar features.
Although the 2023 Model Y features a different part number, 2022 and 2023 Model Ys have also been receiving the front-row cabin sensing feature in Tesla’s 2025.2.6 update, but it is less clear whether they’ll receive the rear seats update later this year. The Model S and Model X also include a cabin radar, but the part number also differs from the cabin radar for the 2024 Model 3 and Model Y.
While the new Model Y isn’t available to check against on Tesla’s Electronic Parts Catalog, it looks like Tesla has been shipping the new 4D cabin radar in at least the 2024+ versions of their Model 3, Model Y and Cybertruck.
We expect rear-seat sensing to arrive on vehicles with the latest cabin radar later this year, while it’s unclear whether the other vehicles with the older cabin radar will receive it.
Tesla mentioned that rear-seat support will arrive in Q3 2025 for the refreshed Model Y. Based on the different interior sizes and spaces, sensor calibration and testing for other models may come slightly later.
