Location for a fuse sensor in Cadillac cts

Fuses and relays are located in the fuse boxes. You usually have one under the hood for the engine, lights and other outside electronics, and at least one fuse box sometimes 2 inside the car for all the interior electronics, radio, heater controls, windows, ect

What is a "fuse sensor"? I "sense" some confusion here-

Im having trouble my radio dont turn on my windows down work and also door locks

It right under the cover looks like a little black box. As you face the front of the hood look to your left right under the cover after you remove it

Where is the censor located under the hood for stabilitrack for a 2008 cadillac cts