GMC Envoy (2006) - fuse box diagram - Auto Genius GMC Envoy (2006) – fuse box diagram. Year of production: 2006. Engine Compartment Fuse Block. The fuse block is located under the hood in the engine compartment on the driver’s side of the vehicle. GMC Envoy XL - 2006 Fuse Box Diagram GMC Envoy XL - 2006 Fuse Box Diagram. Home; GMC; Envoy XL - 2006 Fuse Box; These are some examples of symbols that may be found on the vehicle: v. Testing the Alarm. The alarm can be tested by following these steps: 1. From inside the vehicle, lower the driver’s window. and open the driver’s door. 2. Fuse Box Diagram > GMC Envoy (2002-2009) Fuse box diagram (location and assignment of electrical fuses and relays) for GMC Envoy (2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009).