Tesla is shipping Software Update 2023.12 to select employees today with a variety of new interface improvements and features that are aimed toward customization and ease of access.
Tesla has been making a recent effort to vastly improve both its vehicles and App with new features. In-vehicle updates have included a new version of the Owner’s Manual, a revision to the cabin heat system that improves its functionality, and navigation fixes.
For the app, Tesla improved Supercharger visits by including wait times and rates. Additionally, a small fix in the navigation feature of the App was also included.
Now, a variety of new interface-related features are being shipped as part of 2023.12, which was discovered by TeslaScope.
Text Size
“Choose Standard or Large text size for the touchscreen.
Go to Controls > Display > Text Size.”
Controls Search
“Use the ‘Search’ function for quicker access to controls and settings. Go to Controls > Search and enter a search term. Make changes directly from the result or tap the link to jump to that panel in Controls.”
Points of Interest
“See photos and reviews when you select a point of interest or Supercharger location.”
Phone Call Controls
“Control your phone calls from the steering wheel.
Use the left scroll button to answer or decline incoming calls. While you’re on a call, use it to mute/unmute yourself or hang up.”
Exclusive: A new unreleased @Tesla software update (2023.12) is now going out to employee vehicles, including a trove of interface-oriented improvements.
– Text Size Adjustments
– Controls Search
– Points of Interest
– Phone Call Controls
– and more (included in the next tweets) pic.twitter.com/yOWtXxGG5d— Teslascope (@teslascope) April 10, 2023
Scroll Wheel Customization
“Do more with the left scroll wheel button on the steering wheel.
You can adjust settings like brightness and Acceleration Mode, or perform actions like toggling the Camera App, opening the glovebox, and saving Dashcam footage.
Long press the left scroll button to bring up a list of functions and scroll through the list.
To choose which function comes up by default, go to Controls > Display > Scroll Wheel Function.”
Gear Chimes
“A chime now sounds when you shift gears. To toggle gear chimes, go to Controls > Safety > Gear Chimes.”
Passenger Seat Controls
“Adjust the passenger seat from the rear touchscreen to make it easier to enter or exit the rear seat.
To access the passenger seat controls, tap the seat icon on the rear touchscreen. Hold one of the arrows to move the passenger seat forward or backward. The controls are available only when the vehicle is not moving.
To access the same controls from the front touchscreen, tap the App Launcher and go to the rear screen remote control app.”
Get to Know Your Tesla
“Learn basics like creating Driver Profiles, using Phone Key and regenerative braking from the ‘Get to Know Your Tesla’ educational experience within the new ‘Manual’ app. Each topic includes a visual and, if applicable, a link to the relevant feature. The ‘Manual’ app also provides easy access to resources for learning much more about your Tesla, such as the on-screen Owner’s Manual and online tutorial videos.
Go to App Launcher > Manual.”
– Scroll Wheel Customization
– Gear Chimes
– Passenger Seat Controls
– Get To Know Your @Tesla (seen in a few recent builds, but soft launched) pic.twitter.com/owMfrPjAip— Teslascope (@teslascope) April 10, 2023
Zoom Meetings
Zoom Meetings are an already-launched feature in several markets, but it is now available in additional regions. There have also been improvements in performance and changes have been applied in the background.
Voice Recognition Language
“British English is now available as a voice recognition language.
To update your voice recognition language, go to Controls > Display > Voice Recognition Language and choose an option from the list.”
Factory Reset Bug Fix
This update also includes fixes to the factory reset bug that caused some vehicles to lose all data. It was partially resolved in 2023.6, but new fixes have been included in this update, TeslaScope said.
– Zoom Meetings (now available in additional regions, and minor improvements/performance changes have been applied in the background).
– Speech Recognition Language
British English is now available as a voice recognition language. pic.twitter.com/wCoHlRaFNq— Teslascope (@teslascope) April 10, 2023
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Elon Musk
Tesla Semi’s official battery capacity leaked by California regulators
A California regulatory filing just confirmed the exact battery size inside each Tesla Semi variant.
A regulatory filing published by the California Air Resources Board in April 2026 has put official numbers on what Tesla Semi owners and fleet buyers have long wanted confirmed: the exact battery capacities of both the Long Range and Standard Range Semi truck variants. CARB is California’s independent air quality regulator, and it certifies zero-emission powertrains before they can be sold or operated in the state. When a manufacturer submits a vehicle for certification, the resulting executive order becomes a public document, making it one of the most reliable sources for confirmed production specs on any EV.
The document lists two certified powertrain configurations. The Long Range Semi carries a usable battery capacity of 822 kWh, while the Standard Range version comes in at 548 kWh. Both use lithium-ion NCMA chemistry and share the same peak and steady-state motor output ratings of 800 kW and 525 kW respectively. Cross-referencing Tesla’s published efficiency figure of approximately 1.7 kWh per mile under full load, the 822 kWh pack supports roughly 480 miles of real-world range, which aligns closely with Tesla’s advertised 500-mile figure for the Long Range trim. The 548 kWh Standard Range pack works out to approximately 320 miles, again consistent with Tesla’s stated 325-mile target.
Here is a direct comparison of the two versions based on the CARB filing and published specs:
| Tesla Semi Spec | Long Range | Standard Range |
| Battery Capacity | 822 kWh | 548 kWh |
| Battery Chemistry | NCMA Li-Ion | NCMA Li-Ion |
| Peak Motor Power | 800 kW | 525 kW |
| Estimated Range | ~500 miles | ~325 miles |
| Efficiency | ~1.7 kWh/mile | ~1.7 kWh/mile |
| Est. Price | ~$290,000 | ~$260,000 |
| GVW Rating | 82,000 lbs | 82,000 lbs |
The timing of this certification is not incidental. On April 29, 2026, Semi Programme Director Dan Priestley confirmed on X that high-volume production is now ramping at Tesla’s dedicated 1.7-million-square-foot facility in Sparks, Nevada. A key advantage of the Nevada location is vertical integration: the 4680 battery cells powering the Semi are manufactured in the same complex, eliminating the supply chain bottleneck that had delayed the program for years.
Tesla’s long-term goal is to reach a production capacity of 50,000 trucks annually at the Nevada factory, which would represent roughly 20 percent of the entire North American Class 8 market. With CARB certification now in hand and the production line running, the regulatory and manufacturing groundwork for that target is in place.
News
Tesla crushes NHTSA’s brand-new ADAS safety tests – first vehicle to ever pass
Tesla became the first company to pass the United States government’s new Advanced Driver Assistance Systems (ADAS) testing with the Model Y, completing each of the new tests with a passing performance.
In a landmark announcement on May 7, the National Highway Traffic Safety Administration (NHTSA) declared the 2026 Tesla Model Y the first vehicle to pass its newly ADAS benchmark under the New Car Assessment Program (NCAP).
Model Y vehicles manufactured on or after November 12, 2025, met rigorous pass/fail criteria for four newly added tests—pedestrian automatic emergency braking, lane keeping assistance, blind spot warning, and blind spot intervention—while also satisfying the program’s original four ADAS requirements: forward collision warning, crash imminent braking, dynamic brake support, and lane departure warning.
The NHTSA has just officially announced that the 2026 @Tesla Model Y is the first vehicle model to pass the agency’s new advanced driver assistance system tests.
2026 Tesla Model Y vehicles, manufactured on or after Nov. 12, 2025, successfully met the new criteria for four… pic.twitter.com/as8x1OsSL5
— Sawyer Merritt (@SawyerMerritt) May 7, 2026
NHTSA administration Jonathan Morrison hailed the achievement as a milestone:
“Today’s announcement marks a significant step forward in our efforts to provide consumers with the most comprehensive safety ratings ever. By successfully passing these new tests, the 2026 Tesla Model Y demonstrates the lifesaving potential of driver assistance technologies and sets a high bar for the industry. We hope to see many more manufacturers develop vehicles that can meet these requirements.”
The updates to NCAP, finalized in late 2024 and effective for 2026 models, reflect growing recognition that ADAS features are no longer optional luxuries but essential tools for preventing crashes.
Pedestrian automatic emergency braking, for instance, targets one of the fastest-rising causes of roadway fatalities, while blind spot intervention and lane keeping assistance address common sources of side-swipes and run-off-road incidents. By incorporating objective, performance-based evaluations rather than mere presence of the technology, NHTSA aims to give buyers clearer data on real-world effectiveness.
This milestone arrives at a pivotal moment when vehicle autonomy is transitioning from science fiction to everyday reality.
Tesla’s Full Self-Driving (FSD) software and the impending rollout of robotaxis underscore a broader industry shift toward higher levels of automation. Yet regulators and consumers remain cautious: safety data must keep pace with technological ambition.
The Model Y’s perfect score on these ADAS benchmarks validates that current driver-assist systems—when engineered rigorously—can dramatically reduce human error, which still accounts for the vast majority of crashes.
For Tesla, the result reinforces its long-standing claim of building the safest vehicles on the road. More importantly, it signals to the entire auto sector that meeting elevated federal standards is achievable and expected.
As autonomy edges closer to Level 3 and beyond, where drivers may disengage more fully, such independent verification becomes critical. It builds public trust, informs purchasing decisions, and accelerates the development of systems that could one day eliminate tens of thousands of annual traffic deaths.
In an era when software-defined vehicles promise transformative mobility, the 2026 Model Y’s NHTSA triumph is more than a manufacturer accolade—it is a regulatory green light that autonomy’s future must be built on proven, testable safety foundations. The bar has been raised. The industry, and the roads we share, will be safer for it.
News
Tesla to fix 219k vehicles in recall with simple software update
Tesla is going to fix the nearly 219,000 vehicles that it recalled due to an issue with the rearview camera with a simple software update, giving owners no need to travel to a service center to resolve the problem.
Tesla is formally recalling 218,868 U.S. vehicles after regulators discovered a software glitch that can delay the rearview camera image by up to 11 seconds when drivers shift into reverse.
The affected models include certain 2024-2025 Model 3 and Model Y, as well as 2023-2025 Model S and Model X vehicles running software version 2026.8.6 and equipped with Hardware 3 computers. The National Highway Traffic Safety Administration (NHTSA) determined the lag violates Federal Motor Vehicle Safety Standard 111 on rear visibility and could increase crash risk.
Yet this is no ordinary recall. Owners do not need to schedule a service-center visit, hand over keys, or wait for parts.
Tesla fans call for recall terminology update, but the NHTSA isn’t convinced it’s needed
Tesla identified the issue on April 10, halted further deployment of the faulty firmware the same day, and began pushing a corrective over-the-air (OTA) software update on April 11.
By the time the NHTSA posted the recall notice on May 6, more than 99.92 percent of the affected fleet had already received the fix. Tesla reports no crashes, injuries, or fatalities linked to the glitch.
The episode underscores a deeper problem with regulatory language. For decades, “recall” meant hauling a vehicle to a dealership for hardware repairs or replacements. That definition no longer fits software-defined cars. When a fix arrives wirelessly in minutes — identical to an iPhone update — the term evokes unnecessary alarm and misleads the public about the actual risk and remedy.
Elon Musk has repeatedly called for exactly this change. After earlier NHTSA actions, he stated plainly: “The terminology is outdated & inaccurate. This is a tiny over-the-air software update.” On another occasion, he added that labeling OTA fixes as recalls is “anachronistic and just flat wrong.”
The terminology is outdated & inaccurate. This is a tiny over-the-air software update. To the best of our knowledge, there have been no injuries.
— Elon Musk (@elonmusk) September 22, 2022
Musk’s point is simple: regulators must evolve their vocabulary to match the technology. Traditional recalls involve physical intervention and downtime; OTA updates do not. Retaining the old label distorts consumer perception, inflates perceived defect rates, and slows the industry’s shift to faster, safer software iteration.
Tesla’s rapid, remote remedy demonstrates the safety advantage of over-the-air capability. Problems that once required weeks of dealer appointments are now resolved in hours, often before most owners notice. As more automakers adopt software-first designs, the entire regulatory framework needs to catch up.
Updating “recall” terminology would align language with reality, reduce public confusion, and recognize that modern vehicles are no longer static hardware — they are continuously improving computers on wheels.
For the 219,000 Tesla owners involved, the process is already complete. The camera works, the car is safe, and no one left their driveway. That is the new standard — and the vocabulary should reflect it.