there is a small knob you can turn on the right front of the vehicle. it can be accessed through the little slats in the lower part of the bumper. you'll need a hooked needle nose or something similar as it's a PITA to reach. i find it much easier to just undo the lower radiator hose. if you do try the knob method, it will only turn one half turn, and it will break if forced. the fluid should drain out of the right lower radiator mount.