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Tesla Model Y wiring efficiencies questioned in latest Munro teardown
Sandy Munro took the opportunity to show the Tesla Model Y’s new wiring structure, however, the Detroit automotive veteran noted to be “kind of disappointed” in some of its design.
“What I see here is a nice application of the wire troughs and candy striping…But unfortunately, there’s just as many wires; the wires are just as long,” Munro said.
In July 2019, Tesla published a patent that aimed to improve the wiring, power, and communications systems for its vehicles by reducing the amount of wires found within a car. The idea for a new wiring architecture was needed as many miles of cables can be located within a vehicle, all of which need to be installed by humans and not by machines. The installation of these power lines can take a significant amount of time when needed in excessive lengths. Thus, Tesla maintained it would be decreased from 1.5 kilometers of wire in the Model 3 to just 100 meters in the Model Y.
A Tesla vehicle’s wiring system is responsible for powering everything from turn signals and interior lights to the vehicle’s charging system. It consists of both 12-volt and 400-volt wiring, and the length of wiring needed varies from vehicle to vehicle. However, one thing remains consistent: efficient wiring is crucial for faster production speeds. However, a reduction of wiring also can contribute to reducing the vehicle’s weight as miles of power cords can be present within a car’s power infrastructure.
Reducing the wiring is something Tesla worked on when developing the Model 3, as the Model S contained around three miles of wiring to power its various systems. Tesla halved this amount of wiring with the Model 3 but aimed to decrease it even further when the Model Y was announced. Munro claimed he did not see less wiring, only a more organized wiring architecture. The new design is still an improvement from the Model 3.
Munro then suggests other strategies that Tesla could have used to increase the effectiveness of its wiring systems without using excessive amounts of wires. One of these strategies is called “communications over power,” or, more commonly, Power Line Communication (PLC). Munro explains this system reduces the number of wires by allowing for the implementation into a single power line, instead of many separate lines that all have different functions.
One of the most significant differences between the design of the Model 3 and Model Y was supposed to be its wiring system. In a video from Tesla owner-enthusiast TeslaRaj, the Model Y owner’s manual shows a single track wiring system, where the Model 3 had two tracks. The new single-track system could hint toward the overall design improvements in the Model Y wiring architecture.
Tesla’s wiring design was improved through a more organized harness setting within the Model Y. While the amount and length of the wiring system appeared to be the same according to Munro, these initial changes could end up being a catalyst to a more efficient and less puzzling architecture. Of course, fewer wires would be a dramatic step toward manufacturing efficiency, but this should come with time as Munro’s suggestions just might be accounted for in future Tesla vehicles.
Watch Munro Live’s breakdown of the Model Y wiring architecture below.
Elon Musk
Tesla owners across the globe prepare for Robotaxi launch with this neat customization
Tesla will eventually have Robotaxis worldwide. Some owners are already preparing.
Tesla owners are already preparing for the company’s launch of the Robotaxi platform with a new, neat customization that is appearing around the world.
On Tuesday, the first Tesla Robotaxi test mule was spotted in Austin, where the company will launch the first driverless rides of this ride-hailing service. At first, it will be a limited rollout, reserved for a select few. CEO Elon Musk said public rides could occur as soon as June 22.
First Tesla driverless robotaxi spotted in the wild in Austin, TX
However, the Tesla Robotaxi platform is not one that will be confined to cities and geofenced to certain areas.
Eventually, Tesla will gain enough confidence to roll the Full Self-Driving software straight to every car in the customer fleet that paid for it. Owners will be able to generate income for themselves while they sleep, as the cars will operate as ride-hailing vehicles for people to use for transportation.
In an effort to prepare for the launch of Robotaxi, Tesla owners across the globe are installing Tesla’s ‘Robotaxi’ word art on their cars.
Here’s one in South Korea:
🚨ROBOTAXIS SPOTTED IN 🇰🇷SOUTH KOREA TOO! $TSLA
It’s not official, just vinyl wraps, but you should sell these!pic.twitter.com/mViKuIV96P pic.twitter.com/fuYpvuOjic
— Tesla Archive (@tesla_archive) June 12, 2025
Here’s another in the U.S.:
🚀 Transform your ride into a vision of the future with our Robotaxi sticker set. 🌟
Your Tesla isn’t just a car—it’s a symbol of innovation and style. Be the trendsetter you were born to be and let your vehicle spark inspiring conversations wherever you go. ✨😎
Grab yours… pic.twitter.com/wTJPmnsO1X
— TESBROS (@teslabros) June 12, 2025
Obviously, this is more of a symbol of support for the Robotaxi launch, but many owners are recognizing that Tesla’s Full Self-Driving software will extend to them the ability to use their personal cars as ride-hailing vehicles, becoming a part of the global fleet of self-driving chauffeurs.
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
Elon Musk
Tesla sues former Optimus engineer for stealing trade secrets
Tesla is suing a former engineer who worked on Optimus after he left and immediately started a robotics company that achieved quick development of a hand.
Tesla is suing former Optimus engineer Jay Li in federal court after accusing him of stealing trade secrets and using them to enable a startup he founded after he left.
Li is accused of stealing confidential files and using them to help get his company, “Proception,” off to a rocking start. Tesla says the files Li took helped his new startup “shortcut the typical development process” for robot hands, something that took Tesla years to develop and evolve.
The company said in the complaint (via Reuters):
“Through Li’s pilfering, Defendant Proception purportedly achieved in a matter of months what it has taken Tesla over four years, hundreds of employees, and billions of dollars to achieve.”
Li was an employee at Tesla for several years, working on the Optimus sensor team from 2022 to 2024. The company says it utilized and devoted “extraordinary resources” to the development of Optimus, which has come a long way since its unveiling several years ago.
Tesla Optimus to receive hands with 22 degrees of freedom later this year
Li allegedly downloaded confidential files related to Optimus’ robotic hand movement research before departing the company. He did not work on the hands at the time. However, he left and swiftly started Proception, as the suit states the company was founded just six days after he left Tesla.
Proception was gloating about its ability to build robotic hands just five months after the company was founded. Tesla says the hands have “striking similarities” to its own design for Optimus.
The company is looking for monetary damages and a court order that would block Proception from misusing the secrets it accuses Li of taking.
This is not the first suit Tesla has filed over trade secrets and confidential information theft. Recently, it accused German-Canadian dual citizen Klaus Pflugbeil of stealing battery-related secrets. He was arrested and sentenced to two years in prison.
Men accused of selling Tesla battery secrets arrested in undercover sting
The U.S. Department of Justice used an undercover sting to arrest Pflugbeil.
Tesla is being represented by Josh Krevitt, Orin Snyder, and Angelique Kaounis of Gibson Dunn & Crutcher.
The case is Tesla Inc. v. Perception Inc., U.S. District Court for the Northern District of California, No. 5:25-cv-04963.
News
Tesla teases new Model Y seating option potentially coming soon
Tesla appears to be ready to launch the new Model Y seating option in the coming weeks.
Tesla teased a new Model Y seating option earlier this week in a promotional email, potentially hinting that it could introduce an arrangement offered on the legacy version of the vehicle.
Back in 2021, Tesla started offering a seven-seat configuration of the Model Y, and there was a lot of speculation about its orientation and the space it would provide. The two additional seats were truly a tight fit for anyone, even kids, as the space for a third row was extremely limited in the Model Y.
Tesla Model Y third-row seats first impressions shared by EV owner
Eventually, Tesla started building the seven-seater with forward-facing seats and very tight legroom dimensions. It was beneficial for some, but many still considered the arrangement to be too confined for their needs.
The company confirmed earlier this year in an interview with Jay Leno that the car would get other configurations, including Rear-Wheel-Drive, which has already launched, a Performance trim, which has been spotted with bumper covers several times this year, and a seven-seat version:
🚨CONFIRMED: Tesla will launch the new Model Y 7-Seater and new Model Y Performance later this year.
pic.twitter.com/AA5ZPa7K4q https://t.co/zkphg11LsS
— TESLARATI (@Teslarati) February 10, 2025
The new seven-seater could be coming soon as well, according to a recent email Tesla sent to customers and fans. In it, Tesla writes:
“Ready for anything with long range seating for up to seven and enough room for everyone’s gear.”
Tesla did have a mysterious Model Y roaming around the Fremont Factory’s test track recently with covered bumpers and what appeared to be strange dimensions.
We thought it might be the compact, affordable model that is set to launch in the first half of the year, but now it seems that the car could have either been the Model Y seven-seater or the Model Y Performance configuration, as they are both expected soon.
We are interested to see if Tesla can squeak out a few more inches of legroom in the new seven-seater, but we’re not holding our breath. Nevertheless, the new Model Y came with quite a few improvements, including suspension changes, acoustic-lined glass for a better cabin experience, and a front and rear bumper redesign, among other things.
There is no doubt it will be a better car than the legacy version.
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