Where is the under rear seat fuse box on 2004 GMC Envoy XL?

The under rear seat fuse box on a 2004 GMC Envoy XL is located beneath the rear passenger seat. To access it, you need to lift the seat cushion, which can usually be done by pulling up on the front edge. Once the cushion is lifted, you'll find the fuse box situated in the floor area, covered by a panel that can be removed for access to the fuses.