Automatic doesn't want to shift out of first gear after starting up. After it warms up for 30-45 minutes, shifts fine, it's like it's hung up in 1st as the RPM's are going up.

What is your question?

That's pretty much as detailed as I can be.

What makes this problem better or worse?

It's worse after first cranking up, 30-45 minutes later it's much better.

How long has your 2003 INFINITI G35 had this problem?

2 months