GMC Express 2011 Owner's Manual page 316

10-46 Vehicle Care
The vehicle may not be equipped
with all of the fuses, relays,
and features shown.
Mini Fuse Usage
Right Stop/Turn
3
Trailer
4 Spare
5 Spare
Fuel System
6 Control Module
Ignition
Body Control
7
Module 5
Body Control
8
Module 7
Body Control
9
Module 4
Instrument Panel
10
Cluster
11 Trailer Wiring
12 Spare
13 Brake Switch
14 Windshield Washer
16 Horn