Jailbreak a Tesla: How to Unlock Hidden Features and Customize Your Electric Car

Many Tesla owners miss previous features such as Parking Mode, and are seeking ways to bring them back. Hacking the Tesla is the only way to do so. However, jailbreaking a Tesla is a difficult process that requires some knowledge of coding.

In this guide, the steps required to jailbreak a Tesla will be explained in detail. These include finding the route, jailbreaking the browser, choosing an individual embedded system, creating a fake ECU server, using CAN message, and receiving Tesla’s response. By following these steps, Tesla owners can jailbreak their vehicles and access the features they desire.

Follow These Steps to Jailbreak a Tesla

Jailbreaking a Tesla can provide access to additional features that are not available through official channels. It involves finding vulnerabilities in the Tesla’s software and exploiting them to gain access to the car’s systems. Here are the steps to jailbreak a Tesla:

Step 1: Find the Target

The first step is to find the weakest point in the Tesla’s software to exploit. One way to do this is to target the Wi-Fi SSID that is locked with a plaintext password pre-saved, known as “QtCarNetManager.” However, it can’t be connected in normal mode. To make it work, you have to use Tesla Guest. The Tesla body shop and superchargers offer a Wi-Fi hotspot with a saved passcode. If you can fake it and redirect the traffic of QtCarBrower to your domain, it will be easier to jailbreak the Tesla car.

Step 2: Jailbreak the Browser

The next step is to jailbreak the Tesla’s web browser. Tesla’s web browser has an old version that contains two jailbreaking paths to success in executing arbitrary code. If “compareFunction” is JSArray::shiftCount(), the m_vector will be shifted into the new structure and change the length of it. To jailbreak the browser, you need to use the vulnerability in JSArray::sort() to leak the JSCell address of a Uint32Array structure. Then, using the CVE-2011-3928 vulnerability, get the address of a Uint32Array class structure. Insert FastFree() at this address using the vulnerability in JSArray::sort(). Define a new Uint32Array class structure to get access to arbitrary address writes. Add a JavaScript function into an array. Now, leak the JSCell address of the JavaScript function. From the JSCell address and JSC::ExcecutableBase structure, collect the address of the JIT memory. Write down the shellcode to JIT memory and simply execute this JavaScript function.

Step 3: Get into One Individual Embedded Systems

The safest way to get into the inner system is possible via Gateway. Reverse the binary file (gw–diag) to get the function name called ENABLE_SHELL. Command “printf “\x12\x01″ | socat – udp:gw:3500” to wake up Gateway’s backdoor on port 23. This is the shell entry! Find out the token of the backdoor from the function shellTask() in IDA. Remember the keyword that you see that will help you get fully-access to the Gateway.

Step 4: Program ECU On Tesla

The next step is to locate the ECU in the Gateway which you’ll find in the box. There’s an SD card that is directly connected to the Gateway with no protection. Check the FAT FS on this SD Card to locate debug and upgraded-related files. If you find a log file (which is related to upgrading ECU), then use some string of these files and do some searching. Locate the file name booted.img and rename it. Now, make a face boot.img by using the memoinfo area with customizable code. Then, recalculate the value. Look for the file name release.tgz that contains the ECU software bundle and other data. Under this file, you’ll find gtw.hex file. Disassemble it to see internal things. Among all the function, you’ll find one with id 0x08 that check the file named msg_content on the SD Card to confirm if the format is correct and able to pass the checksum check. If all checks are passed, then this system will rename the file to boot.img and restart itself. Then, it will load and run. Wait for a while until the software is updating itself as the developer will try to update the software.

Step 5: Add CAN Message

Now that you have access to the Tesla’s systems, you can send any sort of message to the real CAN bus by using the fake UDP signal. Plus, you can block some essential CAN signals that can cause issues in dangerous situations when driving the car. Through the access, you can now jailbreak the Tesla and compromise CAN bus when driving by simply naming a part like Tesla > seat/braking/mirror/trunk/sunroof/p_mode.

Step 6: Get Tesla’s Response

After attempting the jailbreak, you’ll get a response from Tesla quickly within 10 days. Wait for the response and then you’ll get the feature unlocked.

Jailbreaking a Tesla involves finding vulnerabilities in the car’s software and exploiting them to gain access to the car’s systems. It is important to note that jailbreaking a Tesla can void its warranty. It is also illegal in some jurisdictions. Therefore, it is recommended to consult with a professional before attempting to jailbreak a Tesla.

Frequently Asked Questions

1. What Does Jailbreak the Tesla Mean?

Jailbreaking a Tesla means removing the restrictions imposed by the manufacturer and unlocking additional features that are not available in the car’s original software. This process allows the owner to customize their Tesla to their liking and enjoy features that were not previously accessible.

2. Is It Possible to Hack into A Tesla?

Yes, it is possible to hack into a Tesla as long as it is connected to a network. Tesla’s inner system consists of more than 60 computers, which can be accessed by a hacker through a network. However, it is important to note that hacking into a Tesla is illegal and can result in severe consequences.

3. Is it Legal to Jailbreak Tesla?

Jailbreaking a Tesla is legal in most countries, thanks to the exemption in the Digital Millennium Copyright Act. However, it is important to understand the legal implications and abide by the applicable laws when considering jailbreaking a Tesla. It is also crucial to note that modifying the software may violate local laws and regulations, which vary depending on the jurisdiction.

Overall Thoughts

Jailbreaking a Tesla is possible, but it may void the warranty and result in expensive repairs. While it is not illegal, it is not recommended. Tesla owners who want to unlock features should consider purchasing them legally.

Frequently Asked Questions

What are the risks associated with jailbreaking a Tesla vehicle?

Jailbreaking a Tesla comes with several risks, including the possibility of damaging the vehicle’s software or hardware, as well as the risk of voiding the warranty. Additionally, jailbreaking may make the vehicle more vulnerable to cyber attacks and security breaches.

How does jailbreaking affect the warranty of a Tesla car?

Jailbreaking a Tesla vehicle will often void the warranty, as it involves modifying the vehicle’s software and hardware. This means that any repairs or replacements needed due to issues caused by the jailbreak will not be covered by the warranty.

What functionalities can be unlocked by jailbreaking a Tesla?

Jailbreaking a Tesla can unlock several functionalities, including the ability to install third-party apps, customize the vehicle’s interface, and enable features that are not available in the standard Tesla software.

Is it legal to jailbreak a Tesla, and does it vary by region?

The legality of jailbreaking a Tesla varies by region, as different countries and states have their own laws regarding software modification. In some regions, jailbreaking may be considered illegal or may violate the vehicle’s terms of service.

What tools or software are commonly used for Tesla jailbreaking?

There are several tools and software available for Tesla jailbreaking, including the popular Tesla Toolbox and the Tesla Hacks software. However, it is important to note that using these tools may come with risks and may void the vehicle’s warranty.

How can one restore a jailbroken Tesla to its original firmware?

Restoring a jailbroken Tesla to its original firmware can be done through the vehicle’s software update feature. However, it is important to note that restoring the vehicle to its original firmware may not always be possible, and may result in the loss of any modifications made during the jailbreak process.

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