make a note of that our trans take nissan Matic-J fluid, i wouldn't not go to local shop to do the drain and fill or even tranny flush, i would either DIY drain and fill every 30k or local nissan.
u have 2 choices of drain and fill,
1. removed the drain plug,drain the oil replaced drain plug washer and re-installed. and add about 4 1/4 of Matic J fluid.
2. removed the trans pan, cleaned the filter and bottom of the pan, replaced the trans pan gasket and re-install, it will take about 4 3/4 of matic J
while your doing the trans, u might wanna consider replacing transfer case fluid, they really go black or brown color fast. transfer case fluid take a regular tranny fluid dextron II,III.