GMC 2016 Sierra Denali Owner's Manual page 290

The vehicle may not be equipped
with all of the fuses, relays, and
features shown.
Number Usage
1 Accessory Power
Outlet 3
Vehicle Care
Number Usage
2 Accessory Power
Outlet 4
7 Body Control
Module 4
8 Body Control
Module 8
9 Rear Seat
Entertainment
10 Cargo Lamp
15 Steering Wheel
Controls
18 Radio
19 Spare
20 Sunroof
23 Airbag/Info
26 Export/Power Take
Off/SEO Battery 1
27 Obstacle Detection/
USB Ports
28 Body Control
Module 2
32 SEO Battery 2
289