Hold paddle switch up, compressor starts. Hold paddle switch down, air dumps. The item "2019-2021 Silverado1500 TowithLoad Assist with Air Management DC100 Paddle Vale" is in sale since Tuesday, April 20, 2021. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Suspension & Steering\Lift Kits & Parts". The seller is "chassis_tech" and is located in Mesa, Arizona.This item can be shipped worldwide.