Toyota Repair: transmission and differential fluid replacement on 2006 Toyota RAV4, 2006 toyota rav4, toyota rav4

Question
Local dealer informed me that, due to the color of the fluid in the transmission and differential, I should have the fluid replaced to the tune of about $475.  As I understand it, these fluids are good for the life of the vehicle and don't even have to be checked until 100,000 miles.  I have 70,000 miles of the 2006 RAV4.

Your thoughts?

Thanks so much,
Patrick

Answer
Toyota does not have a specific interval for fluid change on this transmission and you are correct, they state that it is lifetime fluid,most dealers however do recommend changing the fluid at about 90,000 miles, $475 seems way to high, just to change the fluid should be more like $250 or so, it requires a special procedure so it's a little more involved then just pulling a drain plug and then filling it back up.