looking to check my transmition flud.
where is my transmition dipstick located on 2001 Toyota Prius
You will have to pump the fluid into the case from below. There's no room to pour it in. Unless you can raise it way up and safely support it, it's best to have a pro do it.
where is my transmition dipstick locatred
There is not a dipstick. There is a drain and a fill hole. I would recommend you have a service station inspect the fluid level as it would be easier for access. I would hope that a service station would do this check as a complimentary service.