From what we understand, the lane departure feature utilizes the cameras in the rear view mirrors to monitor when you are leaving a lane. Therefore our bumpers do not affect it.
The BLIS, (Blind Spot Information System) utilizes sensors in the tail lights, our bumpers would have no affect.
There is an adaptive speed control module bolted behind the front bumper, it cannot read properly through our bumpers. We have a bracket (Part# AC15152503) that relocates the module up behind the grill. We have tested it on our Raptor & it works just as it did from the factory. Keep in mind not all 2017 Raptors have this feature, that is why we sell the bracket separately.