GLW

Don't have many issues, but I have had it to the dealer for the engine brake. I don't care what they say, the engine brake doesn't work! I cannot tell the difference in tow/haul or standard. The engine brake should slow the vehicle, isn't that why it's called a BRAKE! Looking for any recall or info anyone may have. My GM service tech. said there is a bulletin on the engine brake issue, but cannot find anything.