Folding Mirrors
WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
The outside rearview mirror switch sends the mirror select and mirror fold/unfold inputs to the mirror control module which communicates the inputs to the memory seat control module through serial data. When the memory seat control module receives a fold/unfold signal it will send a fold/unfold command to the mirror control module and the passenger window switch. The outside mirrors will fold or unfold depending on their current state. The mirror control module and the passenger window switch control the fold/unfold motors through bi-directional control circuits.