Fuse Box Diagram GMC Sierra (mk3; 2007-2013) Fuse box diagram (location and assignment of electrical fuses and relays) for GMC Sierra (mk3; 2007, 2008, 2009, 2010, 2011, 2012, 2013). GMC Sierra (2007) - fuse box diagram - Auto Genius 59 rowsGMC Sierra (2007) – fuse box diagram. Year of production: 2007. Instrument Panel Fuse FUSESUSAGE1Right Trailer Stop/Turn Lamp2Not Used3Electronic Stability Suspension Control, Automatic Level Control Exhaust4Left Trailer Stop/Turn LampSee all 59 rows on wwwgenius 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.