Jonathan Yarden Mar 27, 2021 · 5 min. read
In this article you will find a description of fuses and relays GMC,
with photos of block diagrams and their locations.
Highlighted the cigarette lighter fuse (as the most popular thing people look for).
Get tips on blown fuses, replacing a fuse, and more.
Year of production: 2011, 2012, 2013, 2014, 2015, 2016
Engine Compartment Fuse Block
The fuse block is located in the engine compartment on the driver side of the vehicle.
Mini Fuse | Usage |
3 | Right Stop/Turn Trailer |
4 | Spare |
5 | Spare |
6 | Fuel System Control Module Ignition |
7 | Body Control Module 5 |
8 | Body Control Module 7 |
9 | Body Control Module 4 |
10 | Instrument Panel Cluster |
11 | Trailer Wiring |
12 | Spare |
13 | Brake Switch |
14 | Windshield Washer |
16 | Horn |
17 | Transmission |
18 | Air Conditioning Compressor |
19 | Engine Control Module Battery |
20 | Spare |
21 | Left Stop/Turn Trailer |
22 | Spare |
23 | Spare |
24 | Fuel Pump |
25 | Auxiliary Power Outlet |
26 | Body Control Module 3 |
27 | Special Equipment Option |
28 | Airbag |
29 | Steering Wheel Sensor |
30 | Engine Control Module Ignition/Glow Plug Module |
31 | Transmission Control Module Ignition |
32 | Transmission Control Module Battery |
33 | Spare |
34 | Spare |
35 | Fuel Operated Heater Module |
36 | Fuel System Control Module Battery |
51 | Left High‐Beam Headlamp |
52 | Right High‐Beam Headlamp |
53 | Left Low‐Beam Headlamp |
54 | Right Low‐Beam Headlamp |
55 | Wiper |
56 | Canister Vent Solenoid |
58 | Body Control Module 2 |
59 | Body Control Module 1 |
61 | Spare |
61 | Oxygen Sensor 2 (Post), EV Fan (Diesel) |
63 | Spare |
64 | Mass Air Flow/Canister Vent |
65 | Odd Ignition/Injectors |
66 | Daytime Running Lamps 2 (LOLVL‐V22) (If Equipped) |
67 | Daytime Running Lamps 1 (UPLVL+V22) (If Equipped) |
68 | Auxiliary Stop Lamps |
69 | Spare |
70 | Spare |
71 | Fuel Heater |
72 | Body Control Module 6 |
73 | Lighter/Data Link Connection |
75 | V6 Fuel Injectors |
76 | Spare |
77 | Oxygen Sensor 2 (Pre) |
78 | Engine Control Module Powertrain |
79 | Even Ignition/Injectors |
J-Case Fuse | Usage |
1 | ABS Motor |
2 | ABS Module |
41 | Spare |
42 | Trailer Wiring |
43 | Fan High |
44 | Starter Solenoid |
45 | Engine Control Module/Powertrain |
46 | Fuel System Control Module Battery |
47 | Fan Lo |
74 | Front Blower |
Relay | Usage |
15 | Run/Crank |
37 | Spare |
38 | Fuel Pump |
39 | Crank |
40 | Air Conditioning Compressor |
48 | Fan High |
49 | Powertrain |
50 | Spare |
57 | Fan Low |
60 | Fan Control |
Floor Console Fuse Block
The floor console fuse block is located under the driver seat.
Mini-Fuse | Usage |
F1 | Empty |
F2 | Steering Wheel Sensor |
F3 | Auxiliary Parking Lamps (Cut‐Away) |
F4 | Front Park Lamps |
F5 | Trailer Park Lamps |
F6 | Upfitter Park Lamps |
F7 | Right Rear Park Lamp |
F8 | Left Rear Park Lamp |
F9 | Outside Rear View Mirror Switch |
F10 | Airbag/Automatic Occupant Sensing |
F11 | OnStar® (If Equipped) |
F12 | Empty |
F13 | Heating, Ventilation and Air Conditioning 2 |
F14 | Heating, Ventilation and Air Conditioning 1 |
F15 | Empty |
F17 | Outside Rear View Mirror Heater |
F18 | Rear Window Defogger |
F19 | Compass |
F20 | Radio/Chime/XM™ Satellite Radio (If Equipped) |
F21 | Remote Function Actuator/Tire Pressure Monitor |
F22 | Ignition Switch/Discrete Logic Ignition Sensor (PK3) |
F23 | Instrument Panel Cluster |
F25 | Heating, Ventilation and Air Conditioning Control |
F26 | Auxiliary/Trailer Backup |
F27 | Taillamps Backup |
F30 | Upfitter Courtesy Lamps |
F31 | Front Door Lock |
F32 | Rear Door Lock |
F33 | Cargo Door Unlock |
F34 | Passenger Door Unlock |
F35 | Rear Passenger Door Unlock |
F36 | Driver Door Unlock |
F37 | Empty |
F38 | Empty |
J-Case Fuse | Usage |
F16 | Upfitter Auxiliary 1 |
F24 | Empty |
F28 | Upfitter Auxiliary 2 Reading Lamps |
F29 | Rear Blower |
Relay | Usage |
K1 | Run (High Current Micro) |
K2 | Empty (High Current Micro) |
K3 | Park Lamps (High Current Micro) |
K4 | Upfitter Auxiliary 2 (High Current Mini) |
K5 | Rear Defogger (High Current Micro) |
K6 | Retained Accessory Power (RAP) (High Current Micro) |
Circuit Breaker | Usage |
CB1 | Power Seats |
CB2 | Power Windows |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
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