Tesla is testing the new 2021 Model S “Refresh” on the street in preparations for its release, new photographs show.
Rumors of a revamped Model S and Model X design have been flowing through the community since December. Tesla shut down Model S and Model X production lines at the Fremont production factory in December 2020. The Fremont facility is the only location that the S sedan and X SUV are produced, as Tesla’s other currently-operational production plant, Giga Shanghai in China only builds the Model 3 and Y. Fremont also handles 3 and Y production, but it appears to be business as usual at the plant, as no revisions have been made to either car since the Model 3’s refresh in late 2020.
Teslarati sighted the Model S refresh outside of the Fremont Factory over the weekend. Tesla was using the test track it purchased from the Union Pacific Railroad in 2013, which sits near the Fremont Factory, to test the Model S Refresh. These photographs revealed several changes in the exterior shape, like a wider body used to hold wider wheels, a refined central air intake vent, a new rear bumper, and modified fog lights.
The changes were definitely noticeable, but they were from a distance, so not all of the revisions that Tesla may have made could be spotted. However, new, closer photographs have been captured, giving enthusiasts a closer look at what could be a “Refreshed” Model S.
These photographs were taken on E. Warren Ave, a street that runs East to West and sits directly South of Tesla’s Fremont Factory. As you can see from the photographs, the car runs on public roads near the factory, testing the vehicle’s durability and performance while handling everyday streets.
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- Photo: Teslarati
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- Photo: Teslarati
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- Credit: Google Maps
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- Photo: Teslarati
The two photos give a clearer indication of what Teslarati reported yesterday. The changes to the exterior are relatively minor as the shape of the Model S is basically the same. However, there are numerous improvements to the car that will reap positive benefits to the battery, aerodynamic performance, and the look of the car. One of the most notable changes is what appears to be a revised version of the Arachnid wheel that the Model S Refresh is seen with in the picture.
Comparing the photograph that shows the Model S at an angle with another similar photograph of the flagship sedan, we can see the fog light is shaped differently and seems to include a new shape that is more modern and sleek.
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- Photo: Teslarati
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- Credit: CNBC
The front lip has a larger opening, helping to cool the battery pack down, leading to longevity and more efficient cooling. The inclusion of a diffuser also appears to be sitting under the front lip of the car. On the Plaid Model S at the Nürburgring, the diffuser was located under the rear of the car. This helps improve aerodynamics by displacing air more efficiently.
Tesla has a knack for having release candidates drive around Northern California before its official release. Before the Model 3 was launched by Tesla in the Summer of 2017, several release candidates were spotted driving around Palo Alto, and Elon Musk even released a video of the Model 3 before the final design was approved. Additionally, the Model Y was spotted with testing apparatuses attached to the vehicle in December 2019, three months before the car was initially delivered to its first owner in March 2020.
There is no planned release date for the new Model S as of yet. However, there is certainly something going on at the Fremont factory, as some Body In White vehicles were spotted covered in the parking lot of the production facility last week. The covered bodies looked to maintain an irregular shape, but there were no doors or windows installed. Some anticipate the announcement of the Refresh to be made on Wednesday during the Tesla Earnings Call for Q4 2020, but that remains to be seen.
The Kilowatts also shared their thoughts on the sighting of the Model S Refresh, so be sure to check out their video below.
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 launched the all-electric, steering wheel-less, and pedal-less Cybercab last night at a quiet and small event in downtown Austin, Texas.
The launch, which marked the beginning of unsupervised ride-hailing for Tesla’s Robotaxi platform with Cybercab, has already caught the attention of the National Highway Traffic Safety Administration (NHTSA) who has more questions.
NHTSA opened an Audit Query (AQ) into the Cybercab’s Federal Motor Vehicle Safety Standards (FMVSS) certification that Tesla gave the vehicle. Manufacturers self-certify vehicles much of the time to avoid excessive regulatory delays.
Tesla Cybercab interior, note the lack of steering wheel and pedals. (Credit: @niccruzpatane/X< /a>)
However, the agency needs more information; it said in a summary:
“On September 3, 2026, Tesla began commercial deployment with a small number of its Cybercab vehicles in Austin, Texas. Tesla notified the Agency that it certified those Cybercab vehicles as compliant with all applicable Federal Motor Vehicle Safety Standards (FMVSS). Tesla also notified the Agency that it plans to gradually expand commercial deployment of the Cybercab to include additional vehicles and locations.”
It also went on to state that the Cybercab lacks traditional automotive controls, which is a groundbreaking move. The process is entirely new to the NHTSA, which gives the agency some leverage to put Tesla’s launch under a microscope:
“The vehicles lack permanently attached, conventional manual controls, such as a brake pedal, gas pedal, steering wheel, and mirrors. NHTSA is opening this AQ to examine the process and technical data on which Tesla relied when certifying the Cybercab and related issues. Among other things, NHTSA will consider the extent to which Tesla’s certification depended on determinations that certain FMVSS are inapplicable to the Cybercab.”
Tesla has added 45 Cybercab units to its fleet of Robotaxi-enabled cars in Austin, according to public documents the company submitted to the State of Texas over the past week. Enabling this level of self-driving is something Tesla has worked toward for many years, and now that it is finally here, it seems more than reasonable that regulatory agencies will have some questions.
Many outlets might try to frame this as a negative, but it is truly an agency looking to gain more information about groundbreaking tech that Tesla has been developing for years.
In an effort to keep riders, pedestrians, and property safe, any and all data accumulated from these first days, weeks, and months of rides will likely be shared with the NHTSA to enable broader rollout strategies across the United States and more in the future.
Tesla Robotaxi will be a 24/7 service: here’s when
Tesla Full Self-Driving will now overtake manual driving to avoid disaster
