GMC Sierra 2015 Owner's Manual page 412

Micro Usage
J-Case
Fuses
1 Trailer Brake
2 Trailer Battery
J-Case Usage
Fuses
3 Antilock Brake
System Pump
4 Instrument Panel
BEC 1
5 Spare
6 4WD Trec
7 Spare
8 Instrument Panel
BEC 2
9 Spare
J-Case Usage
Fuses
10 Rear Window
Defogger
11 Starter
12 Cooling Fan 1
13 Cooling Fan 2
Mini Fuses Usage
(2 Pin)
14 Trailer Stop/Turn
Lamps, Left
15 Trailer Parking
Lamps
16 Trailer
Back-up Lamp
17 Trailer Stop/Turn
Lamps, Right
Vehicle Care
Micro Fuses Usage
(2 Pin)
18 Fuel Pump
19 Integrated Chassis
Control Module
20 Electronic
Suspension
Control Module
21 Fuel Pump Power
Module
22 Upfitter Switch 1
23 Upfitter 2
24 Front Wiper
25 Antilock Brake
System Valves
26 Upfitter SW 2
27 Upfitter SW 3
28 Parking Lamps,
Right
10-45