1-3 Reverse Clutch Assembly
WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
13 reverse clutch fluid pressure is exhausted from the transmission fluid pump cover, allowing 1-3 reverse clutch spring force to move the 1-3 reverse clutch piston and release the 1-3 reverse clutch plates.