Tesla's Newest Safety Enhancement: Predictive, Vision-Based Seat Belt Tensioning

Tesla makes their cars even safer with seat belt pretensioning

Tesla

Elon Musk used Tesla's quarter two earnings call to highlight several accomplishments made by his company in recent months, including one that may have gone under the radar.

In the 2022.20 update, Tesla introduced a Seat Belt System Enhancement. Musk expanded on the upgrade and its importance to the auto industry.

"Our safety team also introduced a feature that tension seat belts if the vision system detects an imminent collision, which has never been done before," said the CEO as he described the predictive, vision-based seat belt tensioning program.

While the seatbelt is considered the single most effective safety technology in the history of the automobile, it has a fundamental flaw as it only provides tension when there is an impact.

However, Tesla's advanced camera system has made seat belts safer. "The car has got to be crunching to trigger the seatbelt tensioner, but because we have the vision, we can actually see that a collision is about to occur with 100% probability before it actually happens."

Tesla's Q2 document shows a chart that displays the seat belt tension performance in three different scenarios, belted, belted with a pre-tensioner and belted with the vision system. The vision system mirrors the vehicle's deceleration closest and shaves off milliseconds to better restrain the occupants.

Tesla compares seat belt occupant accerlation using various systems

Tesla

"This is a fundamental safety advantage that Teslas are now able to offer. And there is also an over-the-air update, so this is something that will be in place in all cars that have at least AP3 hardware," said Musk. This latest update further enhances its outstanding safety features; it provides a pretension to the seat belt and can adjust the airbag deployment faster.

The Seat Belt System Enhancement is available in update 2022.20 and higher and the feature is available for all newer Teslas, which includes the new Model S and Model X, all Model Ys, and newer Model 3s.

Tesla prides itself on developing the safest vehicles on earth. The Model S, Model X and Model 3 scored the lowest overall probability of injury of any vehicle ever tested by the U.S. government's New Car Assessment Program. The NHTSA has assessed Teslas with a 5-star safety rating. In addition, the Insurance Institute for Highway Safety (IIHS) has given Teslas the top safety pick numerous times. Most recently, calling the Model 3 the Top Safety Pick of 2022, IIHS gave high marks in every category, including superior scores for front crash prevention.

This latest safety improvement, yet another trailblazing moment for the automotive industry, will surely draw more kudos and, hopefully, save more lives.

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Tesla Adds Steering Wheel Guides for All Wheels in FSD 12.5.2

Not a Tesla App

Tesla’s latest FSD update, version 2024.27.5 brings some improvements when parking your vehicle. This is another undocumented, but one we’re happy to see.

Most recently, the Cybertruck received the undocumented change for the Hands-Free Frunk opening (video below). The Cybertruck also recently received Vision Park Assist, which included steering wheel guides in the visualization showing the direction the front and rear wheels were turned. However, it turns out this isn’t just for the Cybertruck.

Update: We’ve updated this article to mention that this feature isn’t included in update 2024.32 yet.

Quick video on the auto frunk. It's literally 🧍‍♂️📐

Works great! pic.twitter.com/QklzH5cRle

— Dirty Tesla (@DirtyTesLa) September 9, 2024

Parking Improvements

Due to the Cybertruck’s unique rear-wheel steering and steer-by-wire design, Park Assist in the Cybertruck displayed the path of the front wheels, and how they would swing while reversing.

This enhancement is also coming to every Tesla vehicle in FSD 12.5.2 and later. It’s also expected to be available in a future update for non-FSD vehicles. However, it’s unclear whether it will be a later revision of update 2024.32 or the next major Tesla update. This is a neat little update, as it helps drivers better understand and predict the path their vehicle will take during a turn.

Brandon, going by @teslaflexx on X, originally spotted the new visuals recently on an AMD-based Model Y running 2024.27.5 and FSD V12.5.2.

Any vehicles who are on update 2024.27.5 or 2024.27.20 should have access to this new feature.

Looks like Cybertruck wasn’t the only vehicle to get the new guide visuals with park assist. Much better than the lines! pic.twitter.com/tF9ZsWCcWy

— Brandon (@teslaflexx) September 8, 2024

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Tesla to Sell Cybertruck Battery Armor and Rock Sliders for Cybertruck

Not a Tesla App

Tesla’s Cybertruck has been used as an awesome off-road vehicle so far, with some great videos from both Tesla themselves, as well as many owners who have been challenging difficult off-road obstacles.

One frequently requested feature, however, is additional armor for the Cybertruck to improve its off-road capabilities. Wes Morril, Program Manager for the Cybertruck, has confirmed that Tesla will be introducing Battery Armor and Rock Sliders as retrofit “options” by the end of 2024.

Battery Armor

The Cybertruck’s underbody plate, while not completely unarmoured, isn’t exactly super thick, and can leave the battery exposed if the weight of the truck is left on a high-center point or a sharp rock. This upcoming battery armor will be similar to the armored undersides offered by other companies specifically for off-roading.

Rivian, for example, sells armor as a single package for $3,950 USD, or $5,800 CAD, along with a 20” wheel upgrade, full-size spare, and a utility panel including an air compressor and enough hose to let you reach any of the tires when airing up or down your tires for off-road. Tesla’s upcoming Battery Armor will be a retrofit option, unlike Rivian’s – which can only be added when purchasing the vehicle.

Rock Sliders

The Cybertruck has a simple and clean bottom corner – but that also means that it exposes the plastic trim directly. Rock sliders go on the bottom edge of off-road vehicles between the wheels to protect the vehicle's body. Rock sliders are a pretty common modification, and some companies have already begun to offer them for the Cybertruck – but a first-party OEM option is always best.

This is especially true since most third-party options use the lift points of the vehicle to attach rock sliders, which can make replacing wheels or lifting the vehicle difficult without removing the third-party additions. This adds considerable time to what should be a quick job.

Release Date

We’re looking forward to Tesla bringing these options to the Tesla store in the coming months. Wes said they’d be available as retrofits before the end of 2024, along with the upcoming Winter Tire Package, which is arriving next month. The Winter Tire Package is already available to order for Cybertruck owners.

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