Intermittent stalling when coming to a stop, or when starting from a stop.

What is your question?

Is it likely the IAC valve? The service engine light does not come on, and there is no code that comes up. 95% of the time the car runs fine. When it stalls, if I am able to put it in park, shut the key off, and then restart it is fine.

What makes this problem better or worse?

Only does it when warmed up

How long has your 2005 Buick Rendezvous had this problem?

more than a year