I did a search for info here on this but didn't find exactly my situation. Advice please. Today I received a notice that my car "may be due" for its 7500 mile checkup. It's a 2005, one year old with 6900 miles, has had a tire rotation and oil fill at 3000 miles and another fill at 5000 miles. Questions: What does a 7500 mile checkup entail (it's not in my maintenance guide) and would it be wise to have a checkup with a year old Prius? I could call up the dealer but figured you guys would give fuller explanations and opinions.