1-2 Reverse Clutch (B5) Assembly
WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
1-2 reverse clutch (39) fluid enters the automatic transmission case cover assembly and moves the 1-2 reverse clutch piston against spring force to apply the 1-2 reverse clutch plates. In PARK range, the 1-2 reverse clutch has no effect. However, when REVERSE or a forward range is selected, only one apply device has to be energized, which helps create a smooth starting motion.