A shift hydraulic apparatus and method are provided for a vehicular automatic transmission constituted by a torque converter and a continuously variable transmission. A bypass circuit enables an upstream side hydraulic circuit of the hydraulic circuit to communicate with a downstream side hydraulic circuit. A switching valve enables a switching between a communication state of the bypass circuit and a non-communication state thereof. Through the switching valve, both communication state and the non-communication state of the bypass circuit are controlled.

 
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