Where is the fuse box for a GMC Sierra 1993 located? - GMC Aug 23, 2009Fuse locations. There is a large fuse box under the hood near the brake master cylinder. There is also a smaller fuse block in the driver's side of the dash. You'll have to open the driver's door all the way and you'll see a plastic cover at the end of the dash that has a slot to put your finger in to pull it off. 1993 Instrument Panel Fuse Box (GM 4, 5, 5) Jun 30, 2019Instrument Panel Fuse Box (1993 GM 4.3L, 5, 5) IMPORTANT: The fuse box illustration and fuse descriptions cover the vehicles in the ‘Applies To:’ box on the right column. The fuse box is located on the driver side of the dash. Rear Intermittent Wiper/Washer Switch. Master Window Switch. Fog Light Relay. Rear Defogger Switch.