Sunday, 4 January 2026

How to Program a 2025 BYD Smart Key with KEYDIY KD-X4?

 The KEYDIY KD-X4 is a powerful key programming tool for automotive locksmiths and DIY enthusiasts. In this guide, we’ll walk you through programming a 2025 BYD Qin Plus smart key using the KD-X4 and a compatible KD remote.

What You’ll Need:

KEYDIY KD-X4 Key Tool

Compatible KD ZB Smart Remote

Vehicle: 2025 BYD Qin Plus DM-i

Step 1: Generate the Remote Program

  • Navigate to Remote Function → BYD 2025 ID46
  • Place the KD remote on the induction area of the KD-X4.
  • Select Generate → Wireless Generation and wait for the process to complete.
  • Once generation is successful, you’re ready to program the key to the vehicle.

How to Program a 2025 BYD Smart Key with KEYDIY KD-X4
How to Program a 2025 BYD Smart Key with KEYDIY KD-X4
How to Program a 2025 BYD Smart Key with KEYDIY KD-X4

Step 2: Program the Key to the Car

  • Go to IMMO Programming → BYD → Select by type → 2025- → Smart key system → Start execution → Smart Key Pairing (No PIN Required) → Yes
  • The car originally came with two keys. Begin programming the first key:

- Locate the induction area inside the armrest box (look for the key symbol).

- Follow the on-screen instructions to program the first key.

  • When prompted to program the next key, select Yes.

- Remove the original key and place the new KD smart key in the induction area.

  • After the second key is programmed, select No when asked to program a third key.

How to Program a 2025 BYD Smart Key with KEYDIY KD-X4
How to Program a 2025 BYD Smart Key with KEYDIY KD-X4
How to Program a 2025 BYD Smart Key with KEYDIY KD-X4
How to Program a 2025 BYD Smart Key with KEYDIY KD-X4
How to Program a 2025 BYD Smart Key with KEYDIY KD-X4

Step 3: Test the Keys

  • Check remote functions: lock, unlock, and other buttons.
  • Start the vehicle with the newly programmed key.
  • Move the original key outside the car and ensure the new key starts the engine normally.

How to Program a 2025 BYD Smart Key with KEYDIY KD-X4

Done!

Your BYD smart keys are now programmed and ready to use. The KEYDIY KD-X4 makes the process straightforward — no PIN needed for this model.

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How to Program a 2025 BYD Smart Key with KEYDIY KD-X4?

 The KEYDIY KD-X4 is a powerful key programming tool for automotive locksmiths and DIY enthusiasts. In this guide, we’ll walk you through...