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Home >> Chevrolet >> 2017 >> Spark ACTIV, Automatic CVT Trans >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Automatic Transmission - JATCO CVT >> Description and Operation >> Transmission Component and System Description >> Control System >> Select Control
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Select Control

Based on accelerator pedal angle, engine speed, primary pulley speed and the secondary pulley speed, the optimum operating pressure is set to reduce impact of a selector lever operation while shifting from "N" ("P") to "D" ("R") position.