GMC Sierra (2007) - fuse box diagram - Auto Genius Dec 28, 2016GMC Sierra (2007) – fuse box diagram Year of production: 2007 Instrument Panel Fuse Block The instrument panel fuse block access door is located on GMC Sierra 1500 - 2007 Fuse Box Diagram GMC Sierra 1500 - 2007 Fuse Box Diagram. Home; GMC; Sierra 1500 - 2007 Fuse Box; 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. Activate the system by locking the doors with.