Tesla’s ‘Project Halo’ Revealed: The Upgraded Model Ys Behind the Robotaxi Network

June 26, 2025

By Karan Singh

@DirtyTesLa on X

While the performance of FSD has been the star of the Robotaxi Network, new details are emerging about Tesla using modified Model Ys for the service. According to a report from Business Insider, the program to modify some vehicles for Robotaxi is known internally as “Project Halo”, and it involves more than just a newer FSD version.

These details help connect the dots between the subtle physical changes that have been spotted on the Robotaxi Model Ys.

Physical Clue: Expanded Rear Housing

Eagle-eyed observers in Austin were quick to spot a key physical difference on the Robotaxi fleet vehicles: a larger-than-normal housing on the rear window. This immediately sparked speculation that Tesla had integrated new components to support the Robotaxi rollout. We initially expected that these may have been minor changes like Tesla is known to roll out, but now we have a better idea of what exactly is under that new housing.

Halo Communications Unit

According to the insider source, Tesla’s Halo vehicles are equipped with a second telecommunications unit. That’s a significant change from customer vehicles, which are equipped with just a single unit near the roof of the vehicle.

According to the report, this unit serves a dual purpose. It provides redundant, high-precision GPS data, and most importantly, allows the vehicle to maintain a constant, reliable connection with Tesla’s Robotaxi support team. That includes connectivity for teleoperation, if necessary. This hardware may be the physical backbone for the human assistance portion of the pilot phases of Robotaxi.

As we saw in the command center image shared by Ashok Elluswamy, these vehicles are streaming video from six cameras, potentially putting too much of a strain on the vehicle’s single cellular modem.

Not a Tesla App

Probably Not Starlink

While we initially mused that this could be holding a Starlink Mini dish, the space taken up by the housing is far too small to permit the installation of a Mini. Instead, it is approximately the same size as the telematics control unit that Tesla installs in the ceiling of its newer vehicles, which include a 5G modem.

Tesla is likely using the second connection for redundancy or to increase data throughput.

Quickly Iterating on FSD

All that data throughput likely serves a third purpose as well - providing live data streaming for Tesla’s Robotaxi Operations Hub back at Gigafactory Texas. That isn’t necessarily for support teleoperations, as we previously mentioned.

It is likely that Tesla is pulling video data from the Robotaxis to quickly improve the current version of Unsupervised FSD. Early-access testers noticed that in just a day, Tesla was issuing improvements, which means data is moving from vehicle to training in a snap.

Yesterday robotaxi would get like an inch away from this wall (first video) while pulling up. I saw 4 different Robotaxis do it.

Today it seems fixed. I've seen 2 robotaxis. Is Tesla really changing things this quickly? pic.twitter.com/zfdchBL771
— Dirty Tesla (@DirtyTesLa) June 24, 2025

But Elon Said!

Well before the launch, Elon said that the vehicles used for Robotaxi would be unmodified vehicles coming straight from the factory. It seems that isn’t exactly true, but it could be in the future.

So, how can we reconcile the unmodified statement with the clear evidence of Project Halo hardware? The key here lies in the difference between a stock Tesla’s FSD capabilities, versus the operational hardware required to run a commercial Robotaxi service.

Elon’s entire point is that the fundamental FSD hardware — the cameras, sensors, and FSD computer — is standard on every car coming off the line. From a capability standpoint, a consumer car can perform Unsupervised FSD.

The second communications unit is best understood as service hardware. They don’t make the car drive better, but they provide the redundant connectivity needed for operational oversight, remote assistance, and the massive data uploads required for a pilot program.

This hardware may also be necessary for Tesla to meet regulatory compliance requirements for a commercial autonomous vehicle service for the foreseeable future.

These are unmodified Tesla cars coming straight from the factory, meaning that every Tesla coming out of our factories is capable of unsupervised self-driving! https://t.co/n94ln0Uas6
— Elon Musk (@elonmusk) June 10, 2025

Camera Cleaning

The Business Insider report also mentioned that Halo vehicles would have self-cleaning cameras. That isn’t a new hardware feature; in fact, it appears to refer to the software feature where Robotaxis can thoroughly clean its front-facing cameras [video and details], which will eventually make its way to owner vehicles.

Wrapping Up

The insider confirmation of Project Halo and its specialized hardware helps to provide a clearer picture of exactly what Tesla is doing with Robotaxi. It seems that for now, it’s not simply just consumer cars running advanced hardware, it’s a fleet of very lightly purpose-modified vehicles meant to support the pilot rollout.

Tesla’s Robotaxi Easter Egg: Surprise Tip

June 25, 2025

By Karan Singh

BLKMDL3

Tesla has always embraced whimsy in its software, packing it with playful Easter eggs and surprises. From transforming the on-screen car into James Bond’s submarine to the ever-entertaining Emissions Testing Mode and the fan-favorite Rainbow Road, these hidden features have become a signature part of Tesla’s software.

Of course, launching a new product like Robotaxi wouldn’t be complete without a fun little easter egg of its own. The end-of-ride screen in the Robotaxi app presents a familiar option “Leave a tip.”

For anyone pleased with their Robotaxi ride, they may be tempted to leave a tip. However, tapping the button presents our favorite hedgehog instead of a payment screen.

The app displays a message, alongside the familiar Tesla hedgehog, that simply states “Just kidding.”

Tesla’s Robotaxi Easter Egg: Surprise Tiphttps://t.co/EAIFZ5bdQR https://t.co/3IokgEaFJv pic.twitter.com/GjDnDiHDGo
— Not a Tesla App (@NotATeslaApp) June 25, 2025

While it's a fun prank, it’s also a nod to what Tesla really wants to do. They want to reinforce the economic advantage of an autonomous Robotaxi Network. Without a driver, there is simply no need to tip. The gesture is playful, but it’s a reminder of what Tesla’s real aim is here.

Had to been done lol https://t.co/SnZ3afXXzB
— Elon Musk (@elonmusk) June 22, 2025

Even Elon is in on the joke. It is a small detail, but it’s all about those small details with Tesla.

First Recorded Tesla Robotaxi Intervention: UPS Truck Encounter [VIDEO]

June 25, 2025

By Karan Singh

@BLKMDL3 on X

Over the last few days, we’ve seen some exceptionally smooth performance from the latest version of FSD on Tesla’s Robotaxi Network pilot. However, the entire purpose of an early access program with Safety Monitors is to identify and learn from edge cases.

This week, the public saw the first recorded instance of a Safety Monitor intervention, providing a first look at how they’re expected to stop the vehicle.

The event involved a complex, low-speed interaction with a reversing UPS truck. The Safety Monitor intervened to stop the Robotaxi immediately, potentially avoiding a collision with the delivery truck. Let’s break down this textbook case of real-world unpredictability.

The Intervention [VIDEO]

In a video from a ride in Austin, a Robotaxi is preparing to pull over to its destination on the right side of the road, with its turn signal active. Ahead, a UPS truck comes to a stop. As the Model Y begins turning into the spot, the UPS truck, seemingly without signaling, starts to reverse. At this point, the Safety Monitor stepped in and pressed the In Lane Stop button on the main display, bringing the Robotaxi to an immediate halt.

This is precisely why Tesla has employed Safety Monitors in this initial pilot. They are there to proactively manage ambiguous situations where the intentions of other drivers are unclear. The system worked as designed, but it raises a key question: What would FSD have done on its own? It’s not clear whether the vehicle saw the truck backing up, or what it would do when it finally detected it. It’s also unclear whether the UPS driver recognized that the Robotaxi was pulling into the same spot at the exact same time.

It’s possible this wouldn’t result in a collision at all, but the Safety Monitor did the right thing by stepping in to prevent a potential collision, even one at low speed. Any collision just a few days after the Robotaxi Network launch could result in complications for Tesla.

Who Would Be At Fault?

This scenario is a classic edge case. It involves unclear right-of-way and unpredictable human behavior. Even for human drivers, the right-of-way here is complicated. While a reversing vehicle often bears responsibility, a forward-moving vehicle must also take precautions to avoid a collision. This legal and practical gray area is what makes these scenarios so challenging for AI to navigate.

Would the Robotaxi have continued, assuming the reversing truck would stop?

Or would it have identified the potential conflict and used its own ability to stop and reverse?

Without the intervention, it’s impossible to say for sure. However, crucial context comes from a different clip involving, surprisingly, another UPS delivery truck.

A Tale of Two Trucks

In a separate video posted on X, another Robotaxi encounters a remarkably similar situation. In that instance, as another UPS delivery truck obstructs the path forward, the Robotaxi comes to a stop to let its two passengers out just a few feet from their destination.

Once they depart, the Robotaxi successfully reverses and performs a three-point turn to extricate itself from a tight spot. That was all done without human intervention, by correctly identifying the situation.

This second clip is vital because it proves that the Robotaxi's FSD build has the underlying logic and capability to handle these scenarios. It can, and does, use reverse to safely navigate complex situations.

RUN THE CLIP!

UPS Truck vs Tesla Robotaxi https://t.co/GLc86BS5bc pic.twitter.com/O2c8c2KRB2
— Bradford Ferguson (@bradsferguson) June 25, 2025

A Valuable Data Point

Far from being a failure, this first intervention should be seen as a success for Tesla’s safety methodology. It shows the safety system is working, allowing monitors to mitigate ambiguous events proactively.

More importantly, this incident provides Tesla’s FSD team with an invaluable real-world data point.

By comparing the intervened ride with the successful autonomous one, Tesla’s engineers can fine-tune FSD’s decision-making, which will likely have a positive impact on its edge case handling in the near future.

This is the purpose of a public pilot — to find the final edge cases and build a more robust system, one unpredictable reversing truck at a time.