2013 2500hd gmc denali brake light switch
 

Hi,
My cruise control is operating by itself. When i hit the brakes it usually shuts off.
The first day however, it kept revving and didnt drop.
I'm finding the brake light switch for other trucks, but I cant find any for my Denali.
Is it different? Is it still located down by the brake like shown in the video for other trucks?
Any help with the correct part number, location and install would be greatly appreciated.
Thank you