After I-485 approved, I received 3 on-line messages:
1. Approval notice mailed
2. Card ordered
3. Card mailed.
I received all 3 messages, I also received the approval notice through mail. It says card has been ordered and will be sent to me directly.
My wife only received the 1st message, she also received the approval notice through mail. But unlike mine, it ask her to make an infopass and do FP again for card processing (which I don't understand, because we both had code 3 FP on March, 2005).
Based on my experience, you don' need to make an infopass. Also wait for the approval notice to see what it says.