The Tesla Cybertruck’s many features are now appearing as patents that the automaker has submitted to the United States Patent Office, and one of the most notable is the tonneau, or truck bed cover. While the retractable design of the tonneau provides convenience at the touch of a button for owners, it will protect any goods or cargo that drivers will store in the Cybertruck’s massive bed. However, the design is now hinting toward even more versatility and usefulness as the patent describes the potential use as a solar panel that will provide range for the all-electric truck by capturing the sun’s energy.
In Tesla’s newly published “Integrated Tonneau Cover for a Vehicle” patent, several inventors submit their idea and designs for the Cybertruck’s fully mechanical tonneau cover. Guided along a set of channels in the bed of the truck, the tonneau cover will provide protection for any cargo that is stored in the back of the vehicle. Whether it be tools or luggage, the tonneau cover is Tesla’s way of giving owners a way to protect their belongings without having to purchase expensive aftermarket bed covers, which other trucks do not provide. The retractable tonneau is shown in the images below.
Credit: US Patent Office
“In order to mitigate the possibility of such damage, many truck owners install aftermarket truck bed covers that cover the bed of their truck,” the patent states. “However, not only may such aftermarket truck bed covers be difficult to install, they also may not fit exactly with the specifications of the truck beds of different models of trucks. If a truck bed cover does not have an accurate fit it can leak rain or snow through the gaps between the truck bed cover and the walls around the truck bed, and cause cargo damage. In addition, not only are many aftermarket truck bed covers difficult to install and inconvenient to use, but they also take up space in the truck beds and reduce the overall utility of the trucks.”
The tonneau, in a revolutionary new design, will also be able to recharge the vehicle’s battery pack thanks to 110 solar electric cells that are electrically connected to a photovoltaic charging system and battery. “When the tonneau cover is deployed to cover the bed and the solar electric cells that make up the slats are facing the sun, the battery within the electric vehicle can be charged by solar electric cells,” the patent states.
While solar panels on an electric vehicle have been looked at as a possibility in the past, the idea has never come to fruition due to ineffectiveness. Because a car doesn’t provide much surface area, to begin with, the contribution of charge from solar panels would be minimal, and it would require extremely clear and favorable weather conditions to provide any effective additional range to the vehicle. However, CEO Elon Musk hinted just days after the Cybertruck’s unveiling event in November 2019 that Tesla would be adding an option to add solar power that could generate up to 15 miles per day. Musk also hinted toward “fold-out solar wings” that could generate an additional 30-40 miles per day, which could alleviate the need to stop at a Supercharger for some owners.
Will be an option to add solar power that generates 15 miles per day, possibly more. Would love this to be self-powered. Adding fold out solar wings would generate 30 to 40 miles per day. Avg miles per day in US is 30.
— Elon Musk (@elonmusk) November 22, 2019
The tonneau would be completely covered in solar electric cells, and the patent claims that when the “truck bed cover is in a closed position, it is configured to recharge the battery pack, the closed position of the truck bed cover enabling the plurality of solar electric cells to face a sun.”
Musk also hinted toward the possibility of installing solar cells on the roof of a potential Tesla van with Joe Rogan in a podcast interview earlier this year. Musk said that the van would be a favorable design due to its “big, flat area,” and “solar could start to make a little more sense.” Because the tonneau is flat and covers a considerable surface area, there is some potential for it to be just as effective as Musk’s idea for the van.
The full patent document is available below.
Tesla Cybertruck Tonneau Solar Patent by Joey Klender on Scribd
Tesla has reached a notable benchmark in its autonomous driving program after its Robotaxi fleet surpassed one million miles of unsupervised operation. The company made the announcement during its Cybercab event in Austin on September 3.
Tesla Vice President of AI Ashok Elluswamy told attendees he was happy to report the fleet had achieved one million miles of unsupervised Robotaxi operation as a testament to safety.
The new total marked a sharp increase from the 380,000 unsupervised miles Tesla disclosed during its second-quarter 2026 earnings update in late July.
In roughly six weeks, the company added about 620,000 miles. That acceleration followed Tesla’s decision to remove in-vehicle safety monitors from most of its operations outside the San Francisco Bay Area.
Credit: Tesla
Tesla first launched Robotaxi service in Austin in June 2025 with safety drivers present. It later began fully unsupervised rides and expanded into Dallas, Houston, Miami, Orlando, and Tampa. The San Francisco Bay Area remains the exception, where a safety monitor still rides in the vehicle under California permitting rules.
The company has not released a city-by-city breakdown of the one million unsupervised miles.
The milestone arrived as Tesla began offering public Cybercab rides in Austin. The purpose-built vehicle has no steering wheel or pedals and is designed only for autonomous ride-hailing. Production versions joined the existing fleet of modified Tesla vehicles already operating in the service.
Tesla’s unsupervised mileage is growing at a double-digit weekly rate according to earlier company comments, yet its fleet size remains modest compared with established competitors. Waymo has accumulated more than 200 million fully autonomous rider-only miles. Tesla has described its own unsupervised operations as having recorded zero notable incidents in the period leading up to the July update.
The one-million-mile figure reflects Tesla’s shift from supervised testing to broader driverless service in multiple states. It also highlights the company’s strategy of using both existing Model Y vehicles and the new Cybercab to scale its network.
Credit: Tesla
Whether the rapid recent growth continues will depend on further city expansions, regulatory approvals, and the performance of the purpose-built Cybercab in everyday paid rides. Tesla has not specified how many of the latest miles involved the new vehicle versus the rest of the fleet.
The announcement underscores Tesla’s progress toward a larger robotaxi network while illustrating the remaining gap in total autonomous experience relative to longer-operating rivals.
Tesla AI lead Ashok Elluswamy said this week that 24-hour Robotaxi service is close. Replying on X to a rider who wanted Cybercab trips all night, he wrote that the capability would arrive “next month or so” once “the next tech to merge on the v15 plan” is ready.
The comment landed on September 4, one day after Tesla opened public Cybercab rides in Austin. It is the clearest near-term timeline yet for overnight unsupervised operation. Tesla’s paid Robotaxi network currently runs from 6 a.m. to 10 p.m. seven days a week across Austin, Dallas, Houston, Miami, Orlando, and Tampa.
next month or so. the next tech to merge on the v15 plan will enable it.
— Ashok Elluswamy (@aelluswamy) September 4, 2026
That 16-hour window is shorter than the 6 a.m. to 2 a.m. schedule the company used for much of the prior year.
Elluswamy did not name the specific feature or say whether the change would apply first to purpose-built Cybercabs, the existing Model Y fleet, or both. He also offered no city-by-city rollout list. The link to Full Self-Driving v15 is nevertheless significant.
Tesla has described v15 as a step-change architecture with seven parallel improvement tracks and roughly ten times more parameters than earlier builds. Early versions of that software already operate on the Robotaxi fleet and contain about 40 percent of the planned gains.
By July 2026, the unsupervised fleet had logged more than 380,000 miles across six cities in two states with what the company called an impeccable safety record and no notable incidents caused by the vehicles themselves. Tesla has repeatedly argued that camera-based end-to-end neural networks, rather than extra sensors, are the core of the solution.
Overnight service would test that claim in lower-light conditions and would also raise vehicle utilization, a key variable for Robotaxi unit economics. The company has already begun using public Superchargers at night and is building dedicated Robotaxi charging sites.
Riders have asked why software must change if the cars already drive in the dark. The practical answer appears to be reliability and scale: Tesla has held back mass expansion until more of the v15 stack is merged, citing the need for higher confidence before putting thousands of unoccupied vehicles on streets around the clock.
If the next module arrives on the timetable Elluswamy sketched, 24-hour service could begin in October 2026 in at least some markets.
That would mark a shift from a daytime-bounded pilot to a service that can run whenever demand exists, including the late-night hours that have so far remained out of reach.
Tesla is beginning to roll out Full Self-Driving Supervised v14.3.9 with a new active safety layer that can take control even when the driver is operating the car manually.
Tesla AI said the software can activate FSD on the driver’s behalf when an imminent collision is detected and Automatic Emergency Braking may not be enough. It may also engage if the system detects heavy distraction or an accidental FSD disengagement.
FSD Supervised v14.3.9 starting to roll out shortly
This release includes a new active safety feature set: FSD Supervised can now activate on your behalf when an imminent collision is detected and Automatic Emergency Braking (AEB) may not be enough.
It may also engage if we…
— Tesla AI (@Tesla_AI) September 4, 2026
The capability is essentially Automatic Collision Evasion. However, unlike conventional AEB, which mainly applies the brakes in a straight line, this feature can use steering, braking, and acceleration together if the car calculates that stopping alone will not prevent impact and a safer path exists. The system may change lanes or move toward a shoulder when conditions allow, then continue driving after the immediate threat is handled rather than simply coming to a stop.
The intervention is meant as a last-resort safety net, not a replacement for attentive driving.
Tesla Full Self-Driving v14.3.7 early review: FSD saved me from an accident
Tesla’s own description still frames FSD as supervised assistance. Secondary reports on internal release notes say the feature can fire while the car is being driven manually if cabin-camera monitoring suggests the driver is not sufficiently attentive, such as reaching toward the back seat, or if FSD appears to have been turned off unintentionally.
After the emergency maneuver, the car is expected to alert the driver and request a return to manual control.
The safety case is straightforward. Many collisions happen in the last second because a driver is looking away, fumbles a control, or faces an obstacle that braking cannot fully solve. A system that can both recognize that AEB is insufficient and execute a coordinated evasive path can reduce those remaining high-severity events.
Re-engaging after accidental disengagement also addresses a practical failure mode: a small steering nudge that drops FSD at the worst moment. The advantage is a background safety net that uses the same vision stack already running in v14, instead of leaving the car solely to emergency braking once the driver is no longer in command.
The feature still depends on FSD being enabled and, according to reports, an active FSD purchase or subscription. It does not make the vehicle unsupervised. Drivers remain responsible, and Tesla has not published how often the system is expected to intervene or how it will handle false positives.
If the rollout is conservative and the false-alarm rate stays low, the update is a meaningful step: FSD is no longer only a feature the driver turns on. In the rare moments when disaster is already forming, it can step in.
Tesla crosses major Unsupervised Self-Driving milestone
Tesla Robotaxi will be a 24/7 service: here’s when
