Discover the fuse box diagrams for the GMC Sierra spanning model years 2014 to 2018. These diagrams provide details on where to find the fuse panels inside the vehicle. They also explain which fuse is designated for each specific function and provide information on the relays. This helps you easily locate and understand which fuse controls different electrical components in your GMC Sierra, ensuring you can efficiently check or replace them as needed.
Table of Contents
Cigar lighter (power outlet) fuses in the GMC Sierra are the fuses #1, #10, #11 and #12 in the Left Instrument panel fuse box, and fuses #1 and #2 in the Right Instrument panel fuse box.
[2014/2015/2016/2017]
Engine compartment
Fuse Number
Description
Micro J-Case Fuses
1
Trailer Brake
2
Trailer Battery
J-Case Fuses
3
Antilock Brake System Pump
4
Instrument Panel BEC 1
5
Spare
6
4WD Tree
7
Spare
8
Instrument Panel BEC 2
9
Spare
10
Rear Window Defogger
11
Starter
12
Cooling Fan 1
13
Cooling Fan 2
Mini Fuses (2 Pin)
14
Trailer Stop/Turn Lamps, Left
15
Trailer Parking Lamps
16
Trailer Back-up Lamp
17
Trailer Stopfium Lamps, Right
Micro Fuses (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
Upfffler2
24
Front Wiper
25
Antilock Brake System Valves
26
Upfitter SW 2
27
Upfitter SW 3
28
Parlang Lamps, Right
29
Parlang Lamps, Left
30
Upfitter 3
31
Upfitter SW 4
32
Upfitter 4
33
Back-up Lamps
34
Engine Control Module Ignition
35
Air Conditioning Compressor Clutch
36
Heated Mirrors
37
Upfflter 1
38
Center High-Mounted Stoplamp
39
Miscellaneous Ignition
40
Transmission Ignition
41
Fuel Pump 2
42
Cooling Fan Clutch
43
Engine
44
Fuel Injectors A, Odd
45
Fuel Injectors B, Even
46
Oxygen Sensor B
47
Throttle Control
48
Horn
49
Fog Lamp
50
Oxygen Sensor A
51
Engine Control Module
52
Interior Heater
53
Spare
54
Aeroshutter
55
Front Washer
Micro Fuses (3 Pin)
56
Air Conditioning Compressor/Battery Regulated Voltage Control
57
Air Conditioning CompressorModule/Battery Pack
58
Transmission Control Module/Engine Control Module
59
Headlamps
Micro Relays
60
Fuel Pump
61
Upfitter2
62
Upfitter3
63
Upfitter4
64
Trailer Parking Lamps
65
Run/Crank
66
Upfitter 1
67
Fuel Pump 2
68
Air Conditioning Control
69
Starter
70
Rear Window Defogger
71
Engine Control Module
Solid State Relay
72
Cooling Fan Clutch
Instrument Panel
(Left)
Fuse Number
Description
1
Accessory Power Outlet 2
2
SEO Retained Accessory Power
3
Universal Garage Door Opener/lnside Rearview Mirror
6
Body Control Module 3
7
Body Control Module 5
8
Driver Window Switch/Mirror Switch
9
Spare
10
Accessory Power Outlet Retained Accessory Power
11
Accessory Power Outlet Battery
12
Accessory Power Outlet 1/Cigarette Lighter
13
Discrete Logic Ignition Switch
14
Switch Backlighting
17
Body Control Module 1
19
Spare
20
Spare
22
Heater, Ventilation, and Air Conditioning/Auxiliary Heater, Ventilation and Air Conditioning Ignition
Tom Smith is a passionate car mechanic and automotive enthusiast, specializing in the intricate world of car fuse boxes. With years of hands-on experience under the hood, he has earned a reputation as a reliable expert in his field. As the founder and content creator of the popular blog website 'carsfuse.com,' Tom has dedicated himself to sharing his extensive knowledge of car fuse boxes and electrical systems with the world.
