So I'd like to use my 4-way emergency flashers on long downgrades, like truckers do, to draw attention to the fact I'm headed downhill slowly using the Jake brake. Only thing is, when the Jake brake is on my emergency flashers won't flash. They won't flash while I have the brake pedal depressed, either. Work fine otherwize. A few weeks ago we traversed Teton Pass, between Victor ID and Jackson Hole Wy; its a long 10% grade on both the up and down. The two-speed Jake brake worked wonders, and I could descend as slowly as I wished; but I would like to be able to use the 4-way flashers to warn others of my slower speed. What say you, is this how the flashers are supposed to operate?