How can I check the transmission fluid level. I can't find the dip stick

You can't check it. The transmission fluid is sealed. If your losing fluid you need to bring it to a garage or dealership for service.

There's a plug on the side under the air box neer the tie wheel well.open it up and fill until it comes out of the plug.. if you need fluid there's probably a seal leaking by the cvs joint fix asap fix tranny 1900-2900 dollars