Interior Fuse Box Location: 1996-2019 GMC Savana 3500 Click to view0:31Electrical components such as lights, heated seats and radios all have fuses in your 2003 GMC Savana 3500 6 V8 Standard Cargo Van (3 Door). This free video shows you how to replace a blown interior fuse on a 2003 GMC Savana 3500 6 V8 Standard Cargo Van Author: Diamond Jim GMC Savana Cargo Van - 2017 Fuse Box Diagram GMC Savana Cargo Van - 2017 Fuse Box Diagram. Home; GMC; Savana Cargo Van - 2017 Fuse Box; Instruments and Controls. 93. The vehicle may have two. accessory power outlets on the. instrument panel. Remove the cover to access and. replace when not in use. Certain power accessory plugs may.