A hydraulic control system of a transmission , comprising: a controller ; a pump adapted to be driven by a torque-generating mechanism; a fluid circuit (228 - 232, 236 - 262) fluidly coupled to the pump ; a pressure regulator disposed in the fluid circuit (228 - 232, 236 - 262) for regulating pressure therein; a converter circuit , a controls circuit , and a cooler circuit each disposed in the fluid circuit (228 - 232, 236 - 262) and fluidly coupled to the pressure regulator , wherein at least the cooler circuit is downstream from the pressure regulator and converter circuit ; a filter disposed in the fluid circuit (228 - 232, 236 - 262) downstream from the cooler circuit ; and a bypass circuit disposed in the fluid circuit (228 - 232, 236 - 262) and fluidly coupled to the pressure regulator , the bypass circuit including a bypass valve , having an inactive bypass feature defined by a threshold value, and a solenoid , the bypass valve being movable between an open position and a closed position, the solenoid being electrically coupled to the controller and coupled to the bypass valve , wherein the bypass valve is selectively actuated between the open position and the closed position by the solenoid or is inactively actuated between the open position and the closed position if a pressure drop across the bypass valve exceeds the threshold; wherein, in the open position, a first portion of fluid flowing from the pressure regulator flows through the bypass circuit and a second portion of the fluid flows through the cooler circuit and filter ; further wherein, in the closed position, the fluid flowing from the pressure regulator only flows through the cooler circuit and filter . a controller ; a pump adapted to be driven by a torque-generating mechanism; a fluid circuit (228 - 232, 236 - 262) fluidly coupled to the pump ; a pressure regulator disposed in the fluid circuit (228 - 232, 236 - 262) for regulating pressure therein; a converter circuit , a controls circuit , and a cooler circuit each disposed in the fluid circuit (228 - 232, 236 - 262) and fluidly coupled to the pressure regulator , wherein at least the cooler circuit is downstream from the pressure regulator and converter circuit ; a filter disposed in the fluid circuit (228 - 232, 236 - 262) downstream from the cooler circuit ; and a bypass circuit disposed in the fluid circuit (228 - 232, 236 - 262) and fluidly coupled to the pressure regulator , the bypass circuit including a bypass valve , having an inactive bypass feature defined by a threshold value, and a solenoid , the bypass valve being movable between an open position and a closed position, the solenoid being electrically coupled to the controller and coupled to the bypass valve , wherein the bypass valve is selectively actuated between the open position and the closed position by the solenoid or is inactively actuated between the open position and the closed position if a pressure drop across the bypass valve exceeds the threshold; wherein, in the open position, a first portion of fluid flowing from the pressure regulator flows through the bypass circuit and a second portion of the fluid flows through the cooler circuit and filter ; further wherein, in the closed position, the fluid flowing from the pressure regulator only flows through the cooler circuit and filter . <EOS>