WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.
Remove the 4 engine lift bracket bolts (1, 3).
Remove the 2 engine lift and sight shield brackets (2, 4).
Remove the 2 engine lift bracket bolts (2).
Remove the engine lift and sight shield bracket (1).