Tesla's Model Y With Hardware 4.0 Doesn't Include Radar: We Take a Look at Why

June 1, 2023

By Kevin Armstrong

Tesla's Model Y with HW4 is coming without radar

Tesla

As Tesla continues to redefine the automotive industry, insiders have revealed that the company's upcoming Hardware 4.0 (HW4) will not include the radar module in its Model Y vehicles, at least not initially. This marks a shift in the company's approach towards autonomous driving, relying more heavily on vision-based systems. This strategic decision builds on the recent introduction of HW4 in the luxury Model S and Model X models.

HW4 Evolution and Vision Focus:

Previously, the integration of HD radar in the Model S and Model X indicated an evolution in the company's Full Self-Driving (FSD) hardware. However, according to a trusted source, Tesla is not including HD radar in its new Model Ys with HW4. This surprising decision could mean several things, possibly indicating that Tesla views HD radar as a "ground truth" to help improve their vision systems rather than a vital component for FSD vehicles.

Ground-truth Radar: A Tool for Vision Improvement:

In this sense, ground truth refers to the objective reality or facts of a situation, typically used as a benchmark to measure the accuracy of an AI system's predictions or observations.

Last year, Tesla registered a new high-resolution radar unit with the U.S. Federal Communications Commission (FCC), a move that sparked speculation about the company's approach to FSD. The radar unit, intended for imaging similar to LiDAR, hinted at Tesla's continuing interest in using ground-truth systems to train their machine-learning algorithms for vision accuracy. Despite Elon Musk's well-documented skepticism towards LiDAR for autonomous driving, Tesla prototypes have been spotted with LiDAR sensors.

HD Radar to be Added Later?

Although Tesla may be using its radar in HW4 vehicles to improve their vision system, other possibilities could have led Tesla to this decision. New Model Ys with HW4 may only be without radar temporarily, possibly due to a supply chain issue. New owners would still better off receiving a vehicle with HW4 and without radar than a HW3-equipped vehicle due to the improved cameras and faster FSD computer that includes redundancy.

Cost Savings

Of course, HD radar inclusion could also come down to cost. With the Model Y costing almost half of Tesla's luxury models, this decision could come down to cost. If Tesla believes their FSD system could perform almost identically to vehicles with radar, they may simply decide to forego the radio technology in lower-cost vehicles.

Balancing Vision and Radar: The Trade-Off:

While HD radar and LiDAR can provide highly accurate 3D depth measurements, their high cost and potential to overwhelm the FSD system with conflicting data have led Tesla to prioritize camera-based vision systems. Musk has consistently argued that self-driving cars should navigate the world in the same manner as human drivers, using cameras and computational power to navigate three-dimensional space.

Model Y With HW4 But Without HD Radar:

While excluding HD radar from the HW4 in Model Y might seem like a setback, it could prove to be a game-changer. Tesla's strategy of using radar to enhance vision rather than as a core component of its FSD system means that these vehicles may not be as disadvantaged as initially thought.

This approach is consistent with Tesla's earlier decision to remove ultrasonic sensors from some vehicles, enabling them to run vision-based park assist code and compare vision readings to ultrasonic sensor readings. This resulted in significant improvements in vision detection, further solidifying Tesla's commitment to a vision-oriented future.

Introducing HW4 into the Model Y may suggest Tesla's potential future strategies. For instance, commercial Robotaxis may employ multi-sensor systems, including radar and possibly LiDAR, to achieve full automation. Conversely, consumer self-driving vehicles could maintain the vision-only approach to keep costs down.

Ultimately, the transition to HW4 indicates Tesla's unwavering pursuit of refining autonomous driving technology. As the landscape of self-driving vehicles continues to evolve, it will be interesting to see how Tesla's approach shapes the future of this sector.

Norway Approves Tesla’s FSD Testing on Public Roads; Potential for Europe-Wide Deployment

April 26, 2025

By Karan Singh

Not a Tesla App

According to filings found by Kees Roelandschap on X, Tesla has obtained a 2-year exemption from UNECE autonomy regulations to run FSD Supervised on public roads in Norway. This marks one of the first positive developments for regulations and autonomy in Europe — great news for European customers.

Previously, European transportation agencies stressed additional caution and requested more time to legislate, further delaying the widespread UNECE regulation changes for autonomous vehicles.

Norwegian FSD - Employees Only

Following the recent approval from the Norwegian Road Authority, Tesla will be permitted to use its Supervised vehicles on public roads in a testing capacity. This exemption does not yet apply to customers, so we will have to wait and see how testing progresses.

Tesla will specifically be allowed to run FSD V13 and its derivative builds (meaning AI4 vehicles only) with automated steering and speed controls on EU-registered and approved vehicles.

Tesla will also be required to have Tesla-trained drivers (employees) conduct the testing. There is no specific policy in place that enables the use of FSD for customers at this time. However, as testing is conducted and bureaucratic hurdles are overcome across various transportation departments, Tesla may be able to extend the offer to European customers. According to Tesla’s latest earnings call, the company still plans to release FSD in Europe by the end of the year.

Tesla has already begun testing in the Netherlands, showing off FSD’s capabilities in Amsterdam.

FSD Supervised in Europe, pending regulatory approval pic.twitter.com/PYkcATjSUN
— Tesla Europe & Middle East (@teslaeurope) April 5, 2025

Article 39 Exemption

The UNECE can grant exemptions for innovative technologies that move faster than legislation under Article 39. However, Tesla requires the backing of a national ministry of transport to bring this to the UNECE’s attention. The next round of voting on critical issues is expected on May 12, 2025, which may not leave Tesla much time to present its findings to UNECE.

We don’t expect Tesla to receive authorization immediately. It may take several weeks or months of testing from the Netherlands or Norway teams before one of the two countries is willing to support Tesla’s exemption bid.

However, if Tesla achieves an Article 39 exemption, it could allow Tesla to roll out FSD to customers across Europe, provided there are no country-level exemptions.

Tesla Reintroduces FSD Transfers in North America

April 25, 2025

By Karan Singh

Not a Tesla App

Following customer requests, Tesla has once again returned FSD Transfers for North America. This comes after some new details we received on FSD Supervised and Unsupervised at the recent Q1 2025 Earnings Call.

Vox Populi, Vox Dei … FSD Transfer is back

All countries (in NA), all S3XY + @cybertruck (excl Foundation Series & Launch Series)
— Tesla North America (@tesla_na) April 25, 2025

FSD Transfers

This latest round of FSD transfers doesn’t have a specific time limit - so if you’re in the market for a new vehicle and were worried about transferring FSD from a HW3 vehicle - now is the best chance.

This transfer opportunity is applicable for any new vehicle purchases, including the Model S, 3, X, Y, as well as the Cybertruck. The only vehicles it doesn’t apply to are the Foundation-Series Cybertruck or a Launch-Series Model Y, which already come with FSD included.

If you’re conducting an FSD transfer, you’ll need to reach out to your Tesla delivery coordinator through the Tesla app to confirm you’re eligible and to get the process started.

Note that once you take delivery, FSD access is removed from your older vehicle, regardless if you plan to trade in your vehicle or keep it.

Canada and Mexico

For those in Canada and Mexico, there’s some good news. This opportunity is available for customers in those countries as well, however, new vehicle orders are currently paused in Canada and Mexico for unknown reasons.