Shift Solenoid Valve - Mode A
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.
Shift solenoid valve - mode A spring force moves the shift solenoid valve - mode A to the released position, allowing 4th clutch fluid pressure to exhaust through the valve into the exhaust backfill circuit. 234 clutch feed fluid pressure also exhausts through the valve.