It's not a stupid question, @ColoradoGuy . You can control that from the Driver Assist settings in your IPC. Our cars don't have a button for it, but you can go into the Driver Assist settings and turn it on or off that way. It's been a long time since I tried it but I think a warning light comes on your dash when it's turned off, just to let you know it's not enabled, but I could be wrong about that part. I know you can control it from the Driver Assist settings though.