If you are referring to an interior drawer, my drawers (Keystone) all have black plastic tabs on both sides towards front of guide rails. Push down on one tab with thumb nail and pull up on other. Drawer should pull right out.
Steve Rinker
Rochester, NY
2013 Keystone Sydney 340FBH 5th Wheel, 12,280 lbs loaded (scale)
2015.5 GMC Sierra Denali 3500, SRW, Duramax, CC, Payload 3,700 (sticker- not scaled yet)
Take my posts for what they are, opinions based on my own experiences.