Oh yeah, the fluid resavior is located beside the exhaust pressure dump valve near the back of the engine. At's difficult to fill though because the cap is on the bottom of the tank. You have to pour the turn signal fluid upside-down. Once you accomplish that your turnsignals will operate fine and dandy.
Everyone,
Make sure that your turn signal fluid is full at all times, especially in cold climates. It's a very important part of general maintenance.