Firmware
Tesla Autopilot ultrasonic sensors handle difficult merging event

This was an unusual test of the Autopilot (AP) that was completely unintentional on my part. My goal for the day was to video the lane changing feature of the Autopilot, and that’s why my cameras were running. Even so, this situation provides an interesting follow-up to my previous video on the ultrasonic sensors as experienced in the perpendicular parking feature.
The perpendicular parking test, which I repeated about eight times in the same parking spot as used in the video, convinced me that the sensor-software combination is very accurate and reliable. If I hadn’t had that prior experience, I may not have left the AP to carry through uninterrupted in the present video.
The video begins with a red truck passing normally while the two lanes continue well ahead of his passing location. Following that truck, the driver of a Toyota decides to pass, but his decision to do so is too late. Well before he reaches the rear of my car, the lane-marking between the two lanes has disappeared, and his pass will take place entirely in a one lane section of road that is predictably narrowing to a standard lane width.
In a situation where two lanes merge to one, the normal behaviour of the AP is to hug the outside lane and, after the lane-divider marking is gone, allow itself be shepherded by the converging outer lane-marking toward the centre lane-marking as the road narrows. I’ve noticed in the past that this situation can be complicated by other traffic. Sometimes I have taken control.
In this case the AP was steering as expected. The Toyota then presented it with a vehicle closing on the Tesla’s left side while the lane-marking was closing in on the right side. The sensors were picking up both the Toyota and the lane-marking.
A similar scenario often occurs in slow moving traffic when the Tesla is in the centre lane with traffic on both sides of it. If the lanes are narrow, the AP stays within the lane-markings as general guidance, but as the sensors pick up the vehicles on either side, it adjusts its position within the lane so it is more or less equal distant from each flanking vehicle.
And again, during the perpendicular parking test, the AP demonstrated a goal of finding an equal distance between the parked cars on either side. In that case it even exited the spot for a new approach so as to achieve that goal.
In the present video, the AP strove to remain within the lane-marking while being very much aware of the closing vehicle on its left. In my mind there is no question that the AP is programmed to give greater priority to avoiding contact with the vehicle than transgressing the lane-marking.
I suspect that if crossing the lane-marking to avoid the vehicle became imminent, the AP would have required the driver to take control, but this did not happen, and the situation resolved itself by the Toyota pulling ahead.
This performance of the AP shows highly sophisticated programming/decision-making. If the AP were to defer to the driver in every case that could be seen as tending toward risk, then we as drivers would probably be called upon much too often to take over. This video probably shows about the limit of the strategy of letting the AP continue up to the point of imminent danger. At each point throughout, I felt certain that I had enough room on the right side, beyond the lane-marking, and also to the rear, that I could have comfortably exited the situation if called upon to do so.
This experience enhances my confidence in the capabilities of the AP software, the hardware it relies on, and the general strategy of allowing it to remain autonomous well into complex scenarios.
Tesla Autopilot Demonstrations
Firmware
Tesla mobile app shows signs of upcoming FSD subscriptions

It appears that Tesla may be preparing to roll out some subscription-based services soon. Based on the observations of a Wales-based Model 3 owner who performed some reverse-engineering on the Tesla mobile app, it seems that the electric car maker has added a new “Subscribe” option beside the “Buy” option within the “Upgrades” tab, at least behind the scenes.
A screenshot of the new option was posted in the r/TeslaMotors subreddit, and while the Tesla owner in question, u/Callump01, admitted that the screenshot looks like something that could be easily fabricated, he did submit proof of his reverse-engineering to the community’s moderators. The moderators of the r/TeslaMotors subreddit confirmed the legitimacy of the Model 3 owner’s work, further suggesting that subscription options may indeed be coming to Tesla owners soon.
Did some reverse engineering on the app and Tesla looks to be preparing for subscriptions? from r/teslamotors
Tesla’s Full Self-Driving suite has been heavily speculated to be offered as a subscription option, similar to the company’s Premium Connectivity feature. And back in April, noted Tesla hacker @greentheonly stated that the company’s vehicles already had the source codes for a pay-as-you-go subscription model. The Tesla hacker suggested then that Tesla would likely release such a feature by the end of the year — something that Elon Musk also suggested in the first-quarter earnings call. “I think we will offer Full Self-Driving as a subscription service, but it will be probably towards the end of this year,” Musk stated.
While the signs for an upcoming FSD subscription option seem to be getting more and more prominent as the year approaches its final quarter, the details for such a feature are still quite slim. Pricing for FSD subscriptions, for example, have not been teased by Elon Musk yet, though he has stated on Twitter that purchasing the suite upfront would be more worth it in the long term. References to the feature in the vehicles’ source code, and now in the Tesla mobile app, also listed no references to pricing.
The idea of FSD subscriptions could prove quite popular among electric car owners, especially since it would allow budget-conscious customers to make the most out of the company’s driver-assist and self-driving systems without committing to the features’ full price. The current price of the Full Self-Driving suite is no joke, after all, being listed at $8,000 on top of a vehicle’s cost. By offering subscriptions to features like Navigate on Autopilot with automatic lane changes, owners could gain access to advanced functions only as they are needed.
Elon Musk, for his part, has explained that ultimately, he still believes that purchasing the Full Self-Driving suite outright provides the most value to customers, as it is an investment that would pay off in the future. “I should say, it will still make sense to buy FSD as an option as in our view, buying FSD is an investment in the future. And we are confident that it is an investment that will pay off to the consumer – to the benefit of the consumer.” Musk said.
Firmware
Tesla rolls out speed limit sign recognition and green traffic light alert in new update

Tesla has started rolling out update 2020.36 this weekend, introducing a couple of notable new features for its vehicles. While there are only a few handful of vehicles that have reportedly received the update so far, 2020.36 makes it evident that the electric car maker has made some strides in its efforts to refine its driver-assist systems for inner-city driving.
Tesla is currently hard at work developing key features for its Full Self-Driving suite, which should allow vehicles to navigate through inner-city streets without driver input. Tesla’s FSD suite is still a work in progress, though the company has released the initial iterations of key features such Traffic Light and Stop Sign Control, which was introduced last April. Similar to the first release of Navigate on Autopilot, however, the capabilities of Traffic Light and Stop Sign Control were pretty basic during their initial rollout.
2020.36 Showing Speed Limit Signs in Visualization from r/teslamotors
With the release of update 2020.36, Tesla has rolled out some improvements that should allow its vehicles to handle traffic lights better. What’s more, the update also includes a particularly useful feature that enables better recognition of speed limit signs, which should make Autopilot’s speed adjustments better during use. Following are the Release Notes for these two new features.
Green Traffic Light Chime
“A chime will play when the traffic light you are waiting for turns green. If you are waiting behind another car, the chime will play once the car advances unless Traffic-Aware Cruise Control or Autosteer is active. When Traffic Light and Stop Sign Control is activated, a chime will play when you can confirm to proceed through a green traffic light. To enable, tap Controls > Autopilot > Green Traffic Light Chime.
“Note: This chime is only designed as a notification. It is the driver’s responsibility to observe their environment and make decisions accordingly.”
Speed Assist Improvements
“Speed Assist now leverages your car’s cameras to detect speed limit signs to improve the accuracy of speed limit data on local roads. Detected speed limit signs will be displayed in the driving visualization and used to set the associated Speed Limit Warning.
“As usual, to adjust Speed Assist settings, tap Controls > Autopilot > Speed Limit.”
Footage of the new green light chime in action via @NASA8500 on Twitter ✈️ from r/teslamotors
Amidst the rollout of 2020.36’s new features, speculations were abounding among Tesla community members that this update may include the first pieces of the company’s highly-anticipated Autopilot rewrite. Inasmuch as the idea is exciting, however, Tesla CEO Elon Musk has stated that this was not the case. While responding to a Tesla owner who asked if the Autopilot rewrite is in “shadow mode” in 2020.36, Musk responded “Not yet.”
Firmware
Tesla rolls out Sirius XM free three-month subscription

Tesla has rolled out a free three-month trial subscription to Sirius XM, in what appears to be the company’s latest push into making its vehicles’ entertainment systems more feature-rich. The new Sirius XM offer will likely be appreciated by owners of the company’s vehicles, especially considering that the service is among the most popular satellite radios in the country today.
Tesla announced its new offer in an email sent on Monday. An image that accompanied the communication also teased Tesla’s updated and optimized Sirius XM UI for its vehicles. Following is the email’s text.
“Beginning now, enjoy a free, All Access three-month trial subscription to Sirius XM, plus a completely new look and improved functionality. Our latest over-the-air software update includes significant improvements to overall Sirius XM navigation, organization, and search features, including access to more than 150 satellite channels.
“To access simply tap the Sirius XM app from the ‘Music’ section of your in-car center touchscreen—or enjoy your subscription online, on your phone, or at home on connected devices. If you can’t hear SiriusXM channels in your car, select the Sirius XM ‘Subscription’ tab for instruction on how to refresh your audio.”
Tesla has actually been working on Sirius XM improvements for some time now. Back in June, for example, Tesla rolled out its 2020.24.6.4 update, and it included some optimizations to its Model S and Model X’s Sirius XM interface. As noted by noted Tesla owner and hacker @greentheonly, the source code of this update revealed that the Sirius XM optimizations were also intended to be released to other areas such as Canada.
Interestingly enough, Sirius XM is a popular feature that has been exclusive to the Model S and X. Tesla’s most popular vehicle to date, the Model 3, is yet to receive the feature. One could only hope that Sirius XM integration to the Model 3 may eventually be included in the future. Such an update would most definitely be appreciated by the EV community, especially since some Model 3 owners have resorted to using their smartphones or third-party solutions to gain access to the satellite radio service.
The fact that Tesla seems to be pushing Sirius XM rather assertively to its customers seems to suggest that the company may be poised to roll out more entertainment-based apps in the coming months. Apps such as Sirius XM, Spotify, Netflix, and YouTube, may seem quite minor when compared to key functions like Autopilot, after all, but they do help round out the ownership experience of Tesla owners. In a way, Sirius XM does make sense for Tesla’s next-generation of vehicles, especially the Cybertruck and the Semi, both of which would likely be driven in areas that lack LTE connectivity.
-
News1 week ago
Tesla’s Hollywood Diner is finally getting close to opening
-
Elon Musk2 weeks ago
Tesla doubles down on Robotaxi launch date, putting a big bet on its timeline
-
News5 days ago
Tesla is trying to make a statement with its Q2 delivery numbers
-
Investor's Corner1 week ago
LIVE BLOG: Tesla (TSLA) Q1 2025 Company Update and earnings call
-
Elon Musk2 weeks ago
Tesla reportedly suspended Cybercab and Semi parts order amid tariff war: Reuters
-
SpaceX2 weeks ago
SpaceX pitches subscription model for Trump’s Golden Dome
-
News2 weeks ago
Driverless Teslas using FSD Unsupervised are starting to look common in Giga Texas
-
News3 days ago
NY Democrats are taking aim at Tesla direct sales licenses in New York