Tesla is updating their Safety Score program to version 2.0, up from v1.2. The Safety Score acts as a driving coach for Tesla owners. It assesses their driving behavior and provides feedback on how they can improve their habits, potentially resulting in lower insurance premiums. And now, with version 2.0, Tesla has introduced two new safety factors and updated the calculation of the Safety Score. Let's take a closer look at what these changes mean for Tesla owners.
The Safety Score is between 0 and 100, with a higher score indicating safer driving. It is based on several metrics called Safety Factors, which are measured by the Tesla vehicle using various sensors and Autopilot software. The Safety Score aims to encourage safer driving habits and potentially result in lower insurance premiums for Tesla owners.
What's New in Safety Score 2.0
The new Safety Factors are Excessive Speeding and Unbuckled Driving. Excessive Speeding is defined as the proportion of time spent driving more than 85 mph, while Unbuckled Driving is defined as the proportion of time spent driving above ten mph without fastening the driver’s seatbelt. Late Night Driving, added in version 1.2, has also been updated to be risk-weighted based on when drivers are driving from 10 PM to 4 AM, with the impact on the Safety Score reduced earlier in the night and increased later in the night.
The updates are added to other safety factors, including Forward Collision Warnings, Hard Braking, Aggressive Turning, Unsafe Following and Forced Autopilot Disengagement. The Safety Score is calculated using the Predicted Collision Frequency (PCF) formula, which is based on statistical modeling using 8 billion miles of fleet data.
It is worth noting that yellow traffic light detection is only available on vehicles with FSD hardware 3.0 or later. The Tesla vehicle relies on its cameras and firmware to detect yellow traffic lights, so it may not detect all yellow traffic lights. Examples of situations that could lead to undetected yellow traffic lights include when the cameras are obscured or do not have a line of sight of the traffic signals, inclement weather, or low light environments.
How to Achieve a Safe Score
Unfortunately, Tesla's Safety Score isn't available for everyone, at least not yet. To see your Safety Score, you need to have Tesla Insurance or have requested FSD Beta, but have not received it yet.
To determine which Safety Score version you're on, you can open the Tesla app and scroll to the bottom of the Safety Score screen. It'll show you whether you're enrolled in version 1.0, 1.2 or 2.0.
Tesla owners can improve their Safety Score by improving each Safety Factor, such as maintaining a safe following distance, engaging the brake pedal early, turning gradually, not tailgating, planning trips to avoid driving between 10 PM and 4 AM, and fastening their seatbelts before driving.
It is important to note that miles driven while Autopilot is engaged are not used to determine the Forward Collision Warnings per 1,000 Miles. Additionally, driving on Autopilot (including 5 seconds after Autopilot is disengaged) will not be factored into the Safety Score formula. Still, the miles driven while on Autopilot are included in the total.
Safety Score 2.0 Requirements
Safety Score 2.0 requires the vehicle to be on software update 2023.2.12 or later (2021.24.25 or later for Tegra vehicles) or be enrolled in FSD Beta version 11.3 or higher.
The Safety Score can help drivers identify areas to improve, such as reducing speed or maintaining a safe following distance. In addition to providing feedback to individual drivers, the Safety Score data is also used by Tesla to improve the safety features of their vehicles. The data collected from millions of miles of driving can be analyzed to identify patterns and trends in driving behavior, which can then be used to inform the development of new safety features or improvements to existing features.
Overall, Tesla's Safety Score is a powerful tool for promoting safer driving habits and improving the safety of its vehicles, which are already the safest in the world.
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Tesla’s been on a roll with Supercharger improvements lately, from the 325kW charging update for the Cybertruck, to 500kW with V4 Superchargers coming next year. While those improvements have been limited to the Cybertruck, Tesla didn’t put all their focus on their new flagship vehicle, but looked at their more affordable vehicles as well.
LFP Battery Heating
Tesla’s Superchargers can now heat LFP Batteries - those that are in the Model 3 and Model Y Rear Wheel Drive variants. This applies to Long Range and Standard Range models, which saw a limited run. This is another update included as part of the 2024 Tesla Holiday Update - which really arrived with a lot of unannounced new features and capabilities.
The change is pretty interesting - Superchargers of the V3 and V4 variety can now pre-heat batteries for Model 3 and Model Y vehicles equipped with LFP battery packs. That means those vehicles are able to get back on the road faster when it's extremely cold. Of course, Tesla still advises you to precondition before you arrive, saving drivers time and money.
Max de Zegher, Tesla’s Director of Charging, also commented on the new feature. Essentially, Tesla is inducing an AC (alternating) ripple current through the battery to warm it up. Keep in mind that Superchargers are DC charging. That means it is possible to get a cold-soaked LFP vehicle on the road 4x faster than before, assuming that it didn’t precondition at all and that it is in the worst-case scenario (below 0ºF).
In essence, Tesla is using some engineering magic to turn the circuits inside the LFP battery into an electric heater - and powering that heater through the Supercharger. An AC ripple current is a small oscillation in the DC charging current that generates heat through electrical resistance, warming up the battery. Those ripples are a byproduct of converting AC to DC and back - so Tesla is using the onboard charger to induce those ripples to warm up the battery. Definitely an innovative technique that’s really only possible with the versatility of the NACS connector.
We’re hoping Tesla can implement this across their full lineup of vehicles, but we’ll have to wait and see how it is trialed across LFP vehicles first and if it is even possible on vehicles with 2170 or 4680 battery packs.
Tesla launched two FSD updates simultaneously on Saturday night, and what’s most interesting is that they arrived on the same software version. We’ll dig into that a little later, but for now, there’s good news for everyone. For Hardware 3 owners, FSD V12.6.1 is launching to all vehicles, including the Model 3 and Model Y. For AI4 owners, FSD V13.2.4 is launching, starting with the Cybertruck.
FSD V13.2.4
A new V13 build is now rolling out to the Cybertruck and is expected to arrive for the rest of the AI4 fleet soon. However, this build seems to be focused on bug fixes. There are no changes to the release notes for the Cybertruck with this release, and it’s unlikely to feature any changes when it arrives on other vehicles.
FSD V12.6.1 builds upon V12.6, which is the latest FSD version for HW3 vehicles. While FSD V12.6 was only released for the redesigned Model S and Model X with HW3, FSD V12.6.1 is adding support for the Model 3 and Model Y.
While this is only a bug-fix release for users coming from FSD V12.6, it includes massive improvements for anyone coming from an older FSD version. Two of the biggest changes are the new end-to-end highway stack that now utilizes FSD V12 for highway driving and a redesigned controller that allows FSD to drive “V13” smooth.
It also adds speed profiles, earlier lane changes, and more. You can read our in-depth look at all the changes in FSD V12.6.
Same Update, Multiple FSD Builds
What’s interesting about this software version is that it “includes" two FSD updates, V12.6.1 for HW3 and V13.2.4 for HW4 vehicles. While this is interesting, it’s less special when you understand what’s happening under the hood.
The vehicle’s firmware and Autopilot firmware are actually completely separate. While a vehicle downloading a firmware update may look like a singular process, it’s actually performing several functions during this period. First, it downloads the vehicle’s firmware. Upon unpacking the update, it’s instructed which Autopilot/FSD firmware should be downloaded.
While the FSD firmware is separate, the vehicle can’t download any FSD update. The FSD version is hard-coded in the vehicle’s firmware that was just downloaded. This helps Tesla keep the infotainment and Autopilot firmware tightly coupled, leading to fewer issues.
What we’re seeing here is that HW3 vehicles are being told to download one FSD version, while HW4 vehicles are being told to download a different version.
While this is the first time Tesla has had two FSD versions tied to the same vehicle software version, the process hasn’t actually changed, and what we’re seeing won’t lead to faster FSD updates or the ability to download FSD separately. What we’re seeing is the direct result of the divergence of HW3 and HW4.
While HW3/4 remained basically on the same FSD version until recently, it is now necessary to deploy different versions for the two platforms. We expect this to be the norm going forward, where HW3 will be on a much different version of FSD than HW4. While each update may not include two different FSD versions going forward, we may see it occasionally, depending on which features Autopilot is dependent on.
Thanks to Greentheonly for helping us understand what happened with this release and for the insight into Tesla’s processes.
