Key Cloning vs. Programming: A Guide to Autel Key Programming Tools

Car keys are extremely important for both the vehicle and its owner, as they affect various aspects of the vehicle, including starting the engine, locking the doors, and activating the security system.

Whether you’ve lost your car key or simply want to add an extra key for a family member, the process typically involves key programming or cloning. Autel’s key programming tools can help you easily complete these tasks, ensuring your vehicle remains safe and reliable.

But before we start adding keys, we need to understand the differences between key cloning and key programming, how to perform these two tasks using the Autel key programming tool, and what roles they play in the overall process. Let’s take a look.

What is the Key Cloning and Key Programming?

When you want to make a duplicate key yourself, you’ll often come across two concepts that seem very similar: “key cloning” and “key programming.” Most people might think these two terms refer to the same thing, but in fact, there’s a significant difference between them, and they have different practical applications.

What is the Key Cloning?

Key cloning, simply put, involves copying the data and functions of an existing key onto a new key. This process is often quite straightforward and allows the new key to perform all the functions of the original key without requiring any interaction with the vehicle. While this method offers a quick solution, it is generally only suitable for vehicles with relatively simple anti-theft systems.

Advantages of Key Cloning:

• No need to modify vehicle data: Key cloning does not require you to modify the vehicle's data; it can be done simply by copying the key's functions and data to replace the original key.
• Faster operation: Key cloning is simpler and faster than key programming, with no overly complicated steps or procedures.
• No PIN required: Key cloning does not require a PIN or any other form of authentication, making it a more accessible option for many users.
• Lower cost: Because the process of key cloning is straightforward, it can often be done at a relatively low cost, without the need to purchase high-end key programming tools.

Limitations of Key Cloning:

• You must have at least one original key that works properly.
• Cloning is not supported for all chip types and vehicle models, especially some of the latest encryption systems.
• If an original key is lost and you need to add a new key or deactivate the lost key, key programming is usually required.

Using the Autel KM100 to clone a key

What is the Key Programming?

Key programming requires interaction with the vehicle’s electronic systems to ensure that the new key can communicate properly with the vehicle’s systems, thereby enabling all functions. When dealing with complex vehicle security systems, a PIN code is sometimes required to verify identity and complete the programming process.

Advantages of Key Programming:

• Support for complex systems: Key programming can handle more complex vehicle security systems and newer encryption technologies.
• Enhanced security: Key programming can provide a higher level of security by ensuring that the new key is properly authenticated and integrated with the vehicle's electronic systems.
• Greater flexibility: Key programming allows for more advanced features and can be used to add new keys or deactivate existing ones.
• Supports all keys lost scenarios: Unlike key cloning, which requires a fully functional original key, key programming can not only add new keys but also handle "all keys lost" scenarios, ensuring vehicle security remains uncompromised.

Limitations of Key Programming:

• The procedure is more complex.
• Some vehicle models require a PIN, security code, or online authorization.
• It places higher demands on diagnostic equipment (e.g., professional tools supporting IMMO functions).
• It typically takes longer than key cloning.

Some vehicle models require a PIN for key programming.

How to Use Autel Key Tools to Perform Key Cloning and Programming?

The Autel key programming tool lineup includes various models such as the Autel KM100, Autel IM608S II, and Autel IM508S. These tools cater to users with different needs, budgets, and technical skill levels. All Autel key programmers support advanced key programming features and comprehensive IMMO system solutions. However, there are still some differences in terms of vehicle coverage and diagnostic capabilities.

If you want to learn more about the different models and features of Autel key programming tools, you can refer to the Autel key tool comparison chart to select the tool that best meets your needs.

Next, let’s take a look at how to use the Autel key programming tool for cloning and programming.

Step-by-Step Car Key Cloning with Autel AT100

Using Tools: Autel AT100 Chip, Autel KM100, A Original Key, A New Key

Steps:

1. Turn on the Autel KM100
2. Select the Reading/Cloning Menu to Enter
3. Cloning the Original Key and Writing It Into the AT100 Chip
4. Check the AT100 Chip and Insert it into the New Key

By following these steps, you can successfully clone a car key using the Autel AT100 chip and the Autel KM100 tool.

If you are not using the Autel AT100 chip, you can also clone keys using the Autel KM100 tool. The specific steps are similar to those for using the AT100 chip, but you must ensure that the KM100 tool supports the corresponding features. If you want to learn how to clone keys without using the Autel AT100 chip, you can refer to the article “How to Use Autel KM100: Video and Image Guide.”

Step-by-Step Car Key Programming with Autel Key Tools

How do you program a car key using the Autel key programming tool? In this guide, we’ll use the Autel KM100 as an example to walk you through the specific programming steps. The process may vary slightly depending on the vehicle model, so the steps below are for reference only:

Step 1: Enter Vehicle Identification

• Turn on the ignition (using a learned key).
• Insert the VCI into the vehicle and connect it to the Autel KM100.
• Select Auto Detect VIN on the KM100 to confirm the vehicle model.
• Enter the Immobilizer menu.

Step 2: Select Programming Mode

• Select the Add Key function.
• Make sure the vehicle doors remain open.
• You will be prompted: The key must be in the vehicle with the ignition on, avoiding interference sources (such as a cell phone).

Use KM100 to program additional keys

Step 3: Learn a New Key

• Remove all keys except the learned key, ensuring that only one key to be programmed is in the vehicle.
• Insert and remove the learned key as prompted, then place the new key in the vehicle's identification area (usually on the seat or a designated location).
• Turn the ignition on and off repeatedly as prompted until the vehicle successfully recognizes the new key.
• Observe the red anti-theft light on the dashboard: it should turn off when programming is complete.

Step 4: Verify Functionality

• Confirm that both the new and old keys function properly.
• Exit programming mode and ensure there are no immobilizer error or warning lights.

The above outlines the key programming process using the Autel KM100 to add a key. The procedure for "All Keys Lost" scenarios is similar to the one described above, though it may require a more advanced Autel key programming tool, such as the Autel IM608S II.

Key Cloning vs. Key Programming: Core Differences

In the preceding section, we introduced key cloning and key programming, as well as how to use Autel key programming tools to perform these functions. Next, we present a brief overview of the key differences between the two in the table below:

Currently Autel Supported Key Cloning

As we mentioned at the beginning of this article, key cloning technology is not suitable for all situations; in particular, cloning may fail when dealing with advanced IMMO systems or smart keys. The key cloning protocols currently supported by the Autel key programming tool include: ID11, ID12, ID13, ID46, ID47, ID48, ID49, ID4A, ID4C, ID5C, ID4D, ID64, ID8A, ID8C, and MQB.

If you want to confirm whether the Autel key programming tool supports your vehicle model and whether it can perform key cloning and key programming operations, please refer to the Autel Key Tools Vehicle Coverage Check Method.

Conclusion

Key cloning and key programming are both methods for adding keys to a car, but they differ in terms of how they work, the tools required, and their scope of application. Therefore, which method you choose ultimately depends on the specific circumstances of your vehicle and keys.

The Autel key programming tool is one of the most comprehensive solutions currently available on the market. It supports a wide range of vehicle models and key types, meeting the needs of most users. However, before purchasing, you should confirm that it supports your vehicle to avoid any inconvenience or financial loss.