Car TipsHow To

How To Unlock SCT X4 Tuner Yourself

The SCT X4 tuner is a powerful tool that allows users to optimize their vehicle’s performance by modifying its engine parameters. However, before you can begin using the SCT X4 tuner, you need to unlock it. In this article, we will provide step-by-step instructions on how to unlock your SCT X4 tuner yourself.


Before you start unlocking your SCT X4 tuner, you will need the following:

  • Your SCT X4 tuner
  • A computer with internet access
  • A USB cable
  • Your vehicle’s information and details

Step 1: Connect Your SCT X4 Tuner to Your Computer

The first step is to connect your SCT X4 tuner to your computer using the USB cable that came with the device. Once you have connected the tuner, turn it on.

Step 2: Register Your SCT X4 Tuner

Once your SCT X4 tuner is connected to your computer, you will need to register it. To do this, open the SCT Device Updater software on your computer and click on the “Register Device” button.

Next, enter your tuner’s serial number, which can be found on the back of the device. Follow the on-screen instructions to complete the registration process.

Step 3: Obtain Your Vehicle’s Information

To unlock your SCT X4 tuner, you will need to provide your vehicle’s information, including the make, model, year, and engine type. You can find this information in your vehicle’s owner’s manual or on the manufacturer’s website.

Step 4: Request an Unlock Code

Once you have registered your SCT X4 tuner and obtained your vehicle’s information, you can request an unlock code from the SCT website. To do this, click on the “Request Code” button in the Device Updater software.

Enter your vehicle’s information and click on the “Submit” button. SCT will then send you an email with your unlock code.

Step 5: Enter the Unlock Code

After you have received your unlock code, enter it into your SCT X4 tuner using the device’s keypad. Once you have entered the code, press the “OK” button to unlock the tuner.

Step 6: Verify That Your SCT X4 Tuner Is Unlocked

To verify that your SCT X4 tuner is unlocked, connect it to your vehicle’s OBD-II port and follow the on-screen instructions to install any available firmware updates. If the device successfully updates, then it is unlocked and ready to use.

Can I Unmarry my SCT tuner?

Yes, it is possible to “unmarry” or return your SCT tuner to its original, stock settings. However, the process can vary depending on the specific SCT tuner model and the vehicle in it was installed on. It’s important to carefully follow the manufacturer’s instructions or seek professional assistance to avoid any damage to your vehicle or tuner.

How many unlocks does SCT X4 have?

The SCT X4 tuner can be unlocked and used on a single vehicle at a time. However, it can be “unmarried” or returned to its original, stock settings and then used on a different vehicle. The number of times it can be unmarried and used on a different vehicle may vary depending on the specific SCT X4 tuner model and the manufacturer’s policies.

What is Kam reset on the SCT X4 tuner?

The KAM (Keep-Alive Memory) reset on the SCT X4 tuner is a process that clears the learned data and stored codes in the vehicle’s computer system. This can help improve the vehicle’s performance by allowing the computer to relearn the engine’s operating parameters. It’s important to note that performing a KAM reset will also reset any custom tuning modifications that have been made using the SCT X4 tuner.


Unlocking your SCT X4 tuner may seem like a daunting task, but it is a straightforward process that can be completed by following these steps. Once your tuner is unlocked, you can begin using it to optimize your vehicle’s performance and get the most out of your driving experience.

Rachael McAdams

I'm Rachael, CEO of AutoGeeX, bring unrivaled expertise and passion to the automotive industry. With extensive knowledge and a deep understanding of cars, she shares captivating tales, invaluable insights, and practical tips with readers. As an active presence in the car community, Rachael ignites excitement, revolutionizing the automotive landscape with AutoGeeX's pursuit of perfection.

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