Take China Merchants Bank Credit Card as an example to share with you how to set a password for a credit card that does not have a transaction password.

1. Open the homepage of the official website of China Merchants Bank Credit Card. You can search "China Merchants Bank Credit Card" through Baidu and click on the corresponding link.

2. Click the "Online Banking Login" button on the right side of the home page of the official credit card website.

3. Next is the login page. Enter the corresponding information and click the "Login" button.

4. After successfully logging in, you will enter the credit card management page. Click "Card Management" > "Transaction Password Management" > "Transaction Password Settings".

5. Next, click the "Activate" option, and then enter the corresponding information as prompted.

6. Return to the transaction password management page and click the "Change Password" option.

7. Next, enter the new transaction password and the submission will be successful. Extended information:

Four ways to change bank card passwords:

1. Change at the counter: The cardholder needs to bring his or her ID card and bank card to the corresponding bank counter to change it.

2. Modification through machines: Cardholders can modify their passwords at self-service deposit machines, ATMs and multi-function terminals. They only need to follow the instructions on the machine.

3. Online banking modification: You can log in to your own online banking, enter your login password, and then select account services to make modifications.

4. Telephone modification: You can directly call the ICBC customer service number, and select settings through manual service. After entering the initial password or original password, the settings will generally take effect within three working days.