There are plenty of other posts here about this topic but I will answer the basic question here.
The problem seems to be for 04 and early 05 models. The production date on mine was Feb 05 and I have had no trouble.
By all means, call the dealer if you're concerned. They should be able to tell you based on your VIN. Where my husband works, they flash the computer of any eligible Pri when it comes in for other services such as oil change and tire rotation.