FAQ: Smart Key Code Saving Function

Q1. What is the Smart Key Code Saving function?

A1. The Smart Key Code Saving function in the S/W Management menu allows a new Smart Key to be registered by entering the key PIN into the vehicle control unit (IBU). 

Q2. How is the Smart Key PIN code set when the vehicle is produced?

A2. When the vehicle is initially produced at the factory, the initial key PIN code is registered in the IBU. This PIN can be retrieved through the GSW system and is required when registering a new key.

Q3. What can cause a PIN code error when registering a Smart Key?

A3. There are two primary scenarios:

1️⃣ An incorrect PIN code is registered in GSW

• When the initial PIN is registered in GSW at the factory, a value different from the actual PIN may be entered by mistake.
• In this case, registration of a new key will continue to fail when using the PIN retrieved from GSW.
• Because the PIN registered in GSW is incorrect, authentication will fail even if it is entered accurately, as it does not match the PIN registered in the IBU.

2️⃣ Incorrect PIN code entered after IBU replacement

• If the IBU was replaced after vehicle delivery, an incorrect PIN may have been entered and stored in the replacement IBU.
• If the existing PIN retrieved from GSW is not entered and a different PIN is entered by mistake, that value will be stored in the newly installed IBU.
• The PIN retrieved from GSW and the PIN stored in the IBU will then not match, causing new key registration to fail.

Q4. How should the PIN code be managed after control unit replacement?

A4. The following procedure must be followed:

1. After replacing the IBU, accurately update the PIN code in GSW.
2. Verify that the PIN retrieved from GSW matches the value actually stored in the IBU.