Head to the garage and turn the corner to face the shutters.
On the wall next to one of the closed shutters, you’ll find a button.
Press and hold the button for a few seconds to slowly open one of the shutters.
As it opens, a couple of zombies will shuffle out of the garage.
Kill the zombies, and then head through the open shutter to enter Curtis' garage.
That wraps up our guide on how to find Curtis' Garage Key in Dead Island 2.
