I got this idea from a few members so here it is. With the 2020 4Runners rolling out and the new DRCC sensor in the lower grill I'm sure there is some concern with aftermarket products that may interfere with this sensor. I personally have been looking into the C4 lo pro winch bumper with the full height bull bar. I've looked any many pics and videos looking to see if this is going to be an issue.
This particular bumper seems to have the highest bull bar of all the manufactures. I have reached out to C4 Fabrication looking for some measurements on where this bull bar sits in conjunction with the Toyota garnish. C4 said its about from the bottom of the letters on the garnish and sits about 3 inches from the front of this garnish. The bar is 1 3/4 inches in diameter. Not knowing how to get accurate tests I thought id just try something. I bought a 3 inch pool noodle and strapped it to the front of the Toyota and went for a drive. No issues with the operation of this sensor. I pushed the limits a bit and pushed the noodle down to where it was blocking about 2 inches of the sensor(only 2 inches of the noodle was hanging below the garnish). Again, no issues.
I wrote to C4 explaining this to them and they thanked me. They also informed me that this sensor would need some sort of metal or aluminum to detect. Back to the drawing board. Well, I wrapped the same noodle in aluminum foil and also made sure that it was sitting far enough in front of the garnish to mimic the bull bar the best that I could. Thankfully there was again no issues with the operation of this sensor.
Aside from buying this bumper and installing it before powder coat to see if it will be a problem this is where I am at. On C4s website they do state they are not sure if the full height bull bar will interfere and may have an answer in December. Im pretty confident that it will not be an issue but I've waited this long, Ill wait for them to run this test.
Im not sure how to get pics onto this forum. Tells me the file is too large. When I get this figured out ill post pics. Sorry