Installation Procedure
WARNING: This page is about a different car, the 2020 Buick Regal and 2019 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
Install the automatic transmission wiring harness (1) to the transmission. Control Valve Body Assembly Installation
Install the control valve body cover (1) to the transmission. Control Valve Body Cover Replacement (2.0L LTG Engine) , or Control Valve Body Cover Replacement (3.6L LGX Engine)