The steps for etc. if your credit card has expired are as follows:

1. Contact the bank to apply for a new credit card. You can apply for a new card by calling the bank's customer service number, applying online, etc., and bind the new card to your ETC account.

2. Update the ETC account binding information. After applying for a new card, you need to log in to your ETC account and update the new card's credit card number, validity period and other information.

3. Test whether ETC is used normally. After updating the binding information, you need to test whether ETC is used normally. You can test it through the ETC lane on the highway to check whether the ETC deduction is normal. If it cannot be used normally, you can contact ETC customer service for processing.