Accessory DC Power Control Module Description and Operation: Location
WARNING: This page is about a different car, the 2019 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
The 14 V power module, also called the accessory DC power control module, is located in the rear trunk compartment. It is attached to the battery pack. The 14 V power module is air cooled.