If you’re ever involved in a collision with your Tesla, there’s a good chance you can retrieve dashcam footage of the incident—provided the USB drive and glovebox survive. However, sometimes they don’t, and even dashcam footage may not be sufficient.
In such cases, you can request a full recording from Tesla, along with a detailed data report showing comprehensive information about your vehicle’s performance during the collision. Shortly after any impact, your Tesla automatically uploads its crash log and related data to Tesla’s servers when possible, even using the low-voltage battery if the high-voltage pyro fuses are triggered.
Hopefully, you’ll never need this, but here’s how to request a Tesla Vehicle Data Report and what you can expect in the report.
How to Request a Report
Tesla has a simple, automated process for owners to request a Vehicle Data Report. To do so, simply go to Tesla’s Data Association Page and log into your Tesla Account.
From there, you’ll see a form that contains several options. Under “Regarding,” you’ll choose “Data Privacy Request,” and in the next selection, choose “Obtain a Copy of My Data.”
Tesla will then ask you to choose a vehicle that’s attached to your account and a range of dates for which you want data.
Tesla will provide details for the whole date range you specify, so it’s best to keep it small. Once you hit Submit, Tesla will start processing the request. Collision data is kept for an extended period of time, enabling people to go back and find data as required.
The summary page for the Vehicle Data Report
@bilalsattar on X
Within 30 days, and often much sooner, Tesla should e-mail you back with the report in PDF format and a CSV sheet containing all the raw information related to the request. This information is available for any country in which Tesla sells cars. If your country is outside of Tesla’s regular sales zones, you can try reaching out anyway, but we’re not sure if they will retain your data or not.
Tesla can also send you footage and data even if the incident wasn’t recorded as a collision – they’ll send you whatever is available – for any specific timeline you request.
Tesla Vehicle Data Report
The report is several pages long and comes in a nicely formatted PDF package. It breaks down the incident into various sections that help highlight what happened during the event. The first page summarizes the incident by highlighting key events and metrics like Autopilot use and speed.
Summary & Event Information
The Summary and Event Information sections are on the left side of the first page. The summary section is a text version of what happened during the event, reporting the time of the incident, speed, and whether seat belts were used, among other details.
The event information section includes some high-level information, such as the location of the incident, whether dashcam recordings are available, and the date and time.
Driver Log Data Overview
The Driver Log Data Overview section focuses on a few Tesla features and shows whether they were enabled at the five-second mark before the incident, one second before the incident occurred, or at the time of the incident. Tesla will show whether Autosteer / FSD, Driver Monitoring, Cruise Control, and Manual Brakes were used at all of these points. They will also show the status of the driver’s seat belt. Later in the report, Tesla will show graphs for each of these features so that you can see if they changed over the course of the incident.
Speed and Collision
The Vehicle Data Report's formatting
@bilalsattar on X
The Speed and Collision section shows a timeline-based graph of the vehicle’s speed at the time of collision, four seconds before the collision, and four seconds after. The vertical line on the graph represents the collision, giving you a better understanding of what happened before and after the incident. However, in the following pages of the report, Tesla provides numerous time-based graphs that highlight many other metrics, including brake pedal use, accelerator, steering wheel torque and more.
Area of Detected Impact
This area of the report shows the vehicle from the top-down view and which areas detected an impact.
Time-Based Graphs
The rest of the report includes detailed graphs showing various vehicle metrics before, during, and after the incident.
Some of these graphs include the vehicle’s speed, steering wheel torque, steering wheel angle (how much the wheel was being turned and in which direction), accelerator and brake pedal usage, and pressure of the brake master cylinder. Tesla will even show whether any doors were opened during the seconds leading up to or following the incident.
If Tesla has a video of the incident, that will also be provided as a link for you to download. All the other information - the charts and graphs - raw information is also provided in a CSV file, which you can open in software like Microsoft Excel or Google Sheets.
Not a Tesla App
To wrap up, Tesla is currently the only car manufacturer in the world that can provide this information to its customers at the drop of a hat. This information is immensely valuable, and it could be the difference between someone paying an insurance claim or being charged with a crime.
Tesla produces some of the safest vehicles on the planet, and their commitment to safety and reporting is spectacular. We’re happy to see Tesla continue to take steps to better help their customers.
Thanks to Bilal Sattar for sharing his report. We hope you never need to use this, but it’s good to know that it’s available.
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Taking delivery of a new Tesla is often described as a unique experience. It’s quite different from a traditional dealership model, where you can spend hours negotiating prices and loan rates.
While this efficiency appeals to many, it can sometimes be intimidating for first-time Tesla buyers, especially if they’re unfamiliar with how a Tesla works. Tesla often works to identify first-time customers in advance to offer in-person or online tutorials; however, this approach doesn’t always work well. Sometimes, the process can fall short, leaving people feeling overwhelmed.
The following tale of a delivery experience has a rough start, but Tesla has promised to improve the delivery experience. Let’s take a look at what happened and what Tesla plans to do.
Rough Start
Over on X, @jonbbc’s mother had some issues with her new Model Y Refresh delivery. It was a frustrating experience when she arrived early as a first-time Tesla owner at the Grand Rapids delivery center in Michigan.
According to the post, she received a less-than-warm welcome from the staff. She had asked for assistance with her first-ever Tesla, but staff at the site were unhelpful, suggesting she conduct her vehicle inspection alone and then return to sign the paperwork when ready.
This turned what should have been an exciting day into an overwhelming experience, leaving her feeling anxious and isolated. Eventually, a Tesla technician stepped in to help and acknowledged her disappointment, and worked with her to straighten things out. However, as it was rightly pointed out, staff should be more accommodating, especially when a first-time owner explicitly asks for help and identifies themselves as new to electric vehicles.
My mom was really nervous to accept delivery of her new Tesla Model Y today in Grand Rapids, Michigan. When she arrived 15 minutes early, none of the staff gave her a warm welcome. They wouldn’t even go out to the car with her. She was really disappointed & she became even more… pic.twitter.com/qlEfWQqr1W
The good news is that the story didn’t end there. Tesla employees reached back out to @jonbbc on X with apologies. More significantly, they also stated that Tesla plans to make changes to its mobile and web interfaces within the next two to three weeks, specifically aimed at improving the delivery experience for first-time EV and Tesla owners.
Tesla’s current process, as mentioned, aims for efficiency, and uses the Tesla app for documentation and processes. Tesla also has systems in place to support newcomers, but these systems appear to have failed in this specific case.
Clearly the pre-delivery offers of tutorials didn’t work, as some customers just need a more human touch to the entire experience. On top of that, the on-site staff failed to offer support even when asked explicitly, making the entire experience rather disappointing. While we know this isn’t the experience at every location - some locations even make delivery a rather exciting event with bows, placards, and group tutorials - it is still an issue that Tesla will have to address, given their corporate ownership of each location.
What Will Change?
The key takeaway here is that the inherent nature of the Tesla model does work - but not for every single customer, and not for every single delivery location. While Tesla didn’t say exactly what will change, they will likely focus on bridging this gap.
This will likely include clearer step-by-step guidance within the app and on the website for new owners, as well as easier ways to request dedicated staff assistance during the delivery window - hopefully before finalizing the acceptance procedure.
We’d also love to see Tesla improve pre-delivery communications, with more prominent and frequent offers of tutorials to first-time customers.
Even if Tesla just had a viewing area that walked people through some of the newer or most popular Tesla features, this could be a big improvement for some buyers. It would also give others something to watch while they want to be attended.
It’s good to see Tesla’s staff reach out to @jonbbc to address the issue, but this was done behind closed doors - which really doesn’t help Tesla broadcast its commitment to improving its services. Tesla’s lack of a PR team really makes matters such as this frustrating as the message to other customers isn’t always clear.
Hopefully these planned changes will lead to a smoother and less intimidating experience for first-time buyers across all locations.
Every Tesla vehicle is filled to the brim with modern and advanced features - and there is a massively complex network of devices powering that - from the FSD and infotainment computers, to the various networked sensors throughout the vehicle.
That massive network of wiring is traditionally run on a system called CAN, or the Controller Area Network - which was developed by Bosch all the way back in the 1980s. Since then, it has been the industry standard for in-vehicle part-to-part communication for decades.
However, just like the horse and buggy, it may be time for CAN to be put out to pasture as it struggles in the data-driven modern environment. Massive amounts of sensor data, high-resolution infotainment screens, over-the-air (OTA) updates, and centralized Electronic Control Units (ECUs) mean that the old standard just can’t keep up anymore.
Tesla is now actively developing and deploying a next-generation vehicle network to replace CANBUS, and this new network will likely function in synergy with the move to the new 48-volt low-voltage architecture being pioneered by the Cybertruck.
CANBUS - The Old Workhorse
CANBUS was originally developed in 1983, released in 1986, and then standardized by the International Standards Organization (ISO) as ISO 11898 in 1993.
It’s a venerable standard that was revolutionary at the time, as it drastically reduced wiring complexity compared to the point-to-point methods being used in the late 80s and early 90s, and saw immediate mass adoption across the entire industry.
CAN is a message-based protocol, where nodes broadcast data with identifiers. The priority of packets determines their movement and access. However, CAN 2.0 and CAN FD are both extremely limited - CAN 2.0 is limited to a glacial 1Mbps, and ~8Mbps for the more “modern” CAN FD.
CAN FD barely makes the mark for 1080p video streaming at 60fps - if it is pre-encoded. Unencoded raw video surpasses what CAN FD is capable of, and greatly limits its capabilities and usages in a modern data-first vehicle like a Tesla.
CAN is also complex - it is simpler than a point-to-point wiring system, but the multiple CAN buses and gateways result in a complex, heavy, and costly wiring harness that can be next to impossible to diagnose, repair, or replace.
Tesla’s Next-Gen Networking
Tesla’s next-gen networking is all about timing - and unlike CAN, where two messages coming in at the same time can collide (resulting in neither reaching the node), Tesla’s TDMA, or Time Division Multiple Access, assigns specific time slots. This means that access to each node or data point is guaranteed and avoids interference.
You can think of CAN being like everyone yelling in the same room - but TDMA being a tightly scheduled series of one-on-one meetings.
However, TDMA isn’t just a simple sorting system. According to Tesla's patent application, the network operates in repeating cycles. At the start of each cycle, a Network Allocation Map (MAP) is transmitted. Think of this MAP as the dynamic schedule for that cycle – it tells every node exactly which time slots are reserved for which communications. Each reservation specifies the transmitting node, the receiving node, the duration of the slot, and, crucially, the type of traffic it is for.
This allows for sophisticated Quality of Service (QoS) management, separating data into different categories. The patent specifically calls out two main types:
Low Latency (LL) Traffic: These are for critical, time-sensitive signals (think sensor readings for FSD, airbag triggers, control commands). They get assigned short time slots that repeat very frequently within the TDMA cycle (potentially every 500 microseconds, according to one example in the patent) to guarantee delivery within a strict maximum delay. The data packets themselves are kept small, maybe only tens of bytes, to fit these quick slots.
Bulk Traffic: This is for data where total volume is more important than millisecond-level delay (think infotainment data, camera video feeds, maybe larger data logs). These get assigned longer time slots, allowing for larger data packets (over 100 bytes in one example), ensuring high overall throughput even if they don't repeat as often as the LL slots.
This whole system relies on precise synchronization across all nodes. The patent mentions synchronization signals within the TDMA cycle and specialized modem hardware to keep everything perfectly timed.
The network can also be structured into logical domains (like front-left, cabin-right, etc.), each managed by a Domain Master node that handles the MAP and communication within that zone. So, TDMA isn’t just a sorting system; it's a highly managed network implementing traffic prioritization (LL vs. Bulk), dynamic slot allocation via the MAP, and potentially managed by centralized Domain Masters, all designed for efficiency and reliability.
48-Volt and LVCS
Many of these networking concepts appear designed to work hand-in-hand with Tesla’s recently-released LVCS - or Low Voltage Connector Standard. LVCS simplifies vehicle wiring networks by drastically reducing the number of connector types needed from over 200 down to just six. While the patent focuses on the data protocol, LVCS simplifies the physical layer, and the 48V architecture it's built on also enables using the vehicle's DC power lines as a potential network medium (PLC), helping to reduce complexity.
Tesla has been utilizing these new approaches in the Cybertruck, as evident in their new and unique interactive wiring diagram, which helps technicians debug wiring issues. We can expect even more features to take advantage of the new capabilities in the future.
48V also means thinner wires, which reduces costs, and LVCS simplifies the connectors on both the harness and nodes - which means less part complexity, further simplifying the manufacturing and supply chain, while also ensuring vehicles are more repairable.
Wrapping Up
This is another innovation that Tesla is introducing to its fleet - and while we initially looked at it and thought, “Wires? How boring,” we soon realized that it is, in fact, the skeleton that Tesla will use to build its future systems.
That means smoother, faster, and more robust FSD data transfer within the vehicle, resulting in snappier and more effective decision-making. A quicker and more functional infotainment system and better support for deep-reaching OTA updates due to the reduced internal complexity and lack of reliance on internal CAN buses, which couldn’t be updated.
This is a massive technological leap over the decades-old CAN bus system, and while it may be invisible to the average user, it is an excellent example of all the engineering that goes on in under the hood of every Tesla vehicle.
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