Tesla Surprise: Tesla Rolls Out FSD Beta for Hardware 4.0 Vehicles

By Kevin Armstrong
Tesla has released FSD Beta for hardware 4.0 vehicles
Tesla has released FSD Beta for hardware 4.0 vehicles
Not a Tesla App

We all know about Tesla's CEO and his less-than-accurate time prediction. Say it with me - two weeks. But in a surprising turn of events, Tesla has started rolling out its Full Self-Driving (FSD) Beta for new vehicles equipped with Hardware 4 (HW4), including the Model S, Model X, and Model Y from Fremont and Texas. This development seems to contradict Elon Musk's recent statement, but some think there may have been a misunderstanding. Late last night Tesla started rolling out update 2023.26.11 to vehicles with HW4. The update includes FSD Beta 11.4.4 and HW4 owners have now confirmed that the update enables FSD Beta in their vehicles.

Six Months to Two Days

Two days before FSD appeared on HW4-equipped vehicles, Musk stated that the HW4 software would lag HW3 by "at least another six months," emphasizing that the company would focus on perfecting FSD on HW3 and providing it internationally. However, Tesla investor and enthusiast Sawyer Merritt offered an explanation of the change of timing, believing Musk meant that HW4 might not perform as well as HW3 initially, not that it wouldn't be available at all.

This rollout relieves Tesla owners who recently purchased or are awaiting delivery of new vehicles with HW4. After the recent comments that HW4 would lag behind on FSD, X.com and several other social media sites were filled with angry FSD subscribers and confused owners of new Teslas with FSD. While performance differences may still exist between the FSD Beta on HW4 and HW3, this rollout is undoubtedly welcome news for Tesla owners in North America. All that angst over the weekend quickly turned to countless people jumping in their Teslas and going for a ride Monday night to post their experience with FSD and HW4 joyfully.

Miscommunication or Heard Loud and Clear?

So, was it a miscommunication or did Tesla feel some heat from disappointed Tesla new and future buyers? Tesla always puts up strong numbers for customer satisfaction and brand loyalty. A Spring report indicated that approximately 67% of Tesla owners return to purchase another vehicle from the brand, surpassing the industry's average luxury brand loyalty rate of 46%. Tesla's ability to maintain high brand loyalty amidst changing conditions underscores its brand's and its vehicles' strength and appeal. This “episode” may also show how many people buy Teslas for the FSD experience.

While there may be questions regarding the performance of FSD Beta on HW4 compared to HW3, this development is a pleasant surprise. As Tesla continues to refine and improve its self-driving technology, it will be interesting to see how the performance of HW4 vehicles evolves over time and compares to that of HW3-equipped vehicles.

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Tesla Smoking While Supercharging? A Look at What's Actually Happening

By Karan Singh
Hot_Engineering3140 on Reddit

Winter is here, and temperatures are dropping, so one of the most common Tesla questions is about to resurface.

If you’ve landed here after frantically searching about “smoke” coming from your Tesla while Supercharging, take a deep breath—it’s completely normal.

Tesla Smoking While Charging

If you’re Supercharging in freezing weather—even with preconditioning—you might notice steam rising from your Tesla. But rest assured, your car isn’t smoking.

Your Tesla’s heat pump is hard at work warming both the cabin and battery to keep you comfortable and ensure optimal charging temperatures. Over time, condensation and ice build-up in the heat exchanger coils.

Why Does It Happen?

When you reach a Supercharger with your vehicle, the heat pump is still running hot, but without the cold air from driving to keep the heat exchanger coils cool, the ice and condensation quickly start to evaporate—creating what looks like smoke.

Since this typically happens near the front of the vehicle, where a car would traditionally have an engine, new vehicle owners can be startled by the discovery. However, rest assured that it’s just water vapor and it’s completely normal in cold weather.

In fact, this behavior can be experienced in any EV with a heat pump in cold climates. So, if you saw steam coming out of your vehicle and panicked, don’t worry—you’re not alone.

Now that you know what’s happening, go ahead and Supercharge with confidence.

Tesla Improves YouTube App With Smoother Playback

By Karan Singh
Not a Tesla App

Tesla made a lot of improvements in the 2024 Holiday Update, including more than 15 undocumented improvements that were included in the release. One of these was a stealthy performance improvement to the YouTube app.

Several people have mentioned they’ve seen improved performance on YouTube since this year’s Holiday Update - and there’s an interesting reason why.

YouTube Improvements

The improved YouTube performance in Tesla vehicles comes from an unexpected source—Tesla actually rolled back support for YouTube’s newer AV1 video encoding. Instead, vehicles now default to the older VP9 encoding standard.

While AV1 is highly efficient in terms of bandwidth, it requires considerably more processing power to decode and display videos. VP9, on the other hand, is less computationally demanding but uses more bandwidth to achieve the same video quality. This trade-off means smoother playback and better overall performance, even if it comes at the cost of slightly higher data usage.

Intel Inside

The VP9 video codec that the YouTube app is now using is much easier to decode, making it less taxing on the vehicle’s processor. This change is particularly beneficial for Tesla vehicles with Intel processors, which previously struggled to stream video at just 720p. When using AV1, these vehicles often experienced stuttering, sometimes forcing the YouTube app to automatically downgrade playback to 480p.

With this update, Intel-based Teslas should now be able to stream at 1080p smoothly. Streaming at 1440p is also possible, although occasional stutters still occur as the system keeps up with the decoding process.

Intel-based vehicles are the big winners with this change, but this appears to affect AMD Ryzen-based infotainment units as well, providing even smoother playback.

Chromium Web App

Tesla’s Theater apps aren’t native applications; instead, they run as chromeless web apps, leveraging the open-source browser built into Teslas known as Chromium (the open-source version of Chrome). Although this works quite well, there is a severe limitation - Chromium hardware acceleration isn’t supported on Linux, the operating system Tesla uses for their OS.

As a result, Tesla vehicles rely on software decoding instead of hardware decoding, which would otherwise handle video playback far more efficiently. A potential solution could be for Tesla to transition away from Chromium-based web apps in favor of a Mozilla Firefox-based browser, as Firefox does support hardware acceleration on Linux. This switch could also open the door to better streaming performance and the possibility of expanding Tesla’s in-car entertainment options.

However, Tesla’s choice of Chromium likely stems from Digital Rights Management (DRM) requirements for streaming services like Disney+ and Netflix, which rely on DRM-enabled playback. Firefox on Linux has had inconsistent support for DRM due to codec availability and variations in operating system versions.

We’re hopeful that Tesla will either adopt Firefox or develop a fully native application to improve video streaming, rather than continuing with the current web-based Tesla Theater. This shift could also pave the way for additional in-car applications built on Tesla’s native Linux environment—perhaps even reviving the long-rumored Tesla App Store.

Regardless, this update is a welcome improvement, particularly for YouTube, which remains one of the most widely used Theater Mode apps due to its accessibility, free content, and mix of short and long-form videos. It remains to be seen whether similar improvements are made for Netflix, Disney+, or other streaming platforms.

If you’ve noticed improved performance in Theater Mode, now you know why.

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