Fitment: 2016-2018 Cadillac Ats 2016-2017 Cadillac Cts 2016-2020 Chevrolet Camaro How to replace A Cooling Fan: 1. Disconnect Power Use a wrench to disconnect the negative battery terminal. Key detail: Wrap the disconnected cable end with a cloth or tape so it doesn't accidentally spring back and touch the battery terminal. 2. Remove the Old Fan Unplug the electrical connector (press the tab—don't just yank it). Remove all mounting bolts/clips and keep them in a safe place. Carefully lift out the old fan. .