Toyota Repair: tTransmission oil, maintenance book, fluid exchange

Question
I have a 2009 Camry LE  and the maintenance book does not mention changing the transmission oil at all is there any reason?

Answer
Am I to assume that you have an automatic trans? In general, you will want to perform a fluid exchange every 30,000 miles or so. There are other factors that might cause you to change your fluid at an earlier time such as: lots of towing, live on a dirt road, mostly round town driving, dark colored fluid or has a burnt smell.