On ours there are little tabs on the drawer hardware, where the rail slides into it, that need be depressed. One moves up and the other down. They are at the back on the sides of the drawer, hard to see, I just feel around for them. They feel flimsy and only move about an 8th of an inch, made of plastic. Then you just pull the drawer the rest of the way out.
🇨🇦 Scott & Janie 🇨🇦
2004 Dodge RAM 2500 CTD (slightly tweaked)
2011 Cruiser 31RK
Cooper the Golden Retriever, and
Sam the black lab.