Explore GMC Yukon fuse box diagrams in this practical guide that explains the electrical layout of the fourth-generation full-size SUV. In this article, we consider the fourth-generation GMC Yukon (also known as Yukon XL ), available from 2015 to 2020 , and provide fuse box diagrams for GMC Yukon 2015, 2016, 2017, 2018, 2019 and 2020 , along with information about the location of the fuse panels and the assignment of each fuse and relay (fuse layout).
The left instrument panel fuse block access door is on the driver side edge of the instrument panel.
The right instrument panel fuse block access door is on the passenger side edge of the instrument panel. There are relays on the back of the fuse block. To access, press the tabs and remove the fuse block.
The engine compartment fuse block is in the engine compartment, on the driver side of the vehicle.
The rear compartment fuse block is behind the access panel on the left side of the compartment.
Assignment of the fuses in the engine compartment (2015, 2016)
Fuse Data
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No. Description 1 Electric Running Boards 2 Antilock Brake System Pump 3 Interior BEC LT1 4 MBS Passenger 5 Suspension Leveling Compressor 6 4WD Transfer Case Electronic Control 7 Electric Parking Brake 8 Interior BEC LT2 9 Rear BEC 1 10 MBS Driver 11 ALC Exhaust Solenoid 12 Integrated Chassis Control Module 13 Real Time Dampening 14 Fuel Pump Power Module 17 MBS Driver 21 ALC Exhaust Solenoid 23 Integrated Chassis Control Module 24 Real Time Dampening 25 Fuel Pump Power Module 26 Spare/Battery Regulated Voltage Control 28 Upfitter2 29 Upfitter2 Relay 30 Wiper 31 TIM 34 Back-up Lamps 35 Antilock Brake System Valve 36 Trailer Brakes 37 Uptitter3 Relay 39 Trailer Stop/Turn Right 40 Trailer Stop/Turn Lef 41 Trailer Park Lamps 42 Right Parking Lamps 43 Left Parking Lamps 44 Upfitter3 45 Automatic Level Control Run/Crank 47 Upfitter4 48 Uptitter4 Relay 49 Reverse Lamps 51 Parking Lamp Relay 59 Euro Trailer 60 Air Conditioning Control 63 Upfrtter 1 67 Trailer Battery 69 RC Upfitter 3 and 4 70 VBAT Upfrtter 3 and 4 72 Upfitter 1 Relay 74 Engine Control Module Ignition 75 Miscellaneous Ignition Spare 76 Transmission Ignition 77 RC Upfitter 1 and 2 78 VBAT Upfitter 1 and 2 83 Euro Trailer RC 84 Run/Crank Relay 87 Engine 88 Injector A – Odd 89 Injector B – Even 90 Oxygen Sensor B 91 Throttle Control 92 Engine Control Module Relay 93 Horn 94 Fog Lamps 95 High-Beam Headlamps 100 Oxygen Sensor A 101 Engine Control Module 102 Engine Control Module/ Transmission Control Module 103 Auxiliary Interior Heate 104 Starter 107 Aero Shutter 109 Police Upfitter 112 Starter Relay 114 Front Windshield Washer 115 Rear Window Washer 116 Cooling Fan Left 121 Right HID Headlamp 122 Left HID Headlamp 123 Cooling Fan Right
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Assignment of the fuses in the Instrument panel fuse box (Left) (2015, 2016)
Fuse Data
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No. Description 1 Not Used 2 Not Used 3 Not Used 4 Accessory Power Outlet 1 5 Retained Accessory Power/Accessory 6 APO/BATT 7 Universal Garage Door Opener/lnside RearView Mirror 8 SEO Retained Accessory Powe 9 Not Used 10 Body Control Module 3 11 Body Control Module 5 12 Steering Wheel Controls Backlighting 13 Not Used 14 Not Used 15 Not Used 16 Discrete Logic Ignition Sensor 17 VPM 18 Mirror Window Module 19 Body Control Module 1 20 Front Bolster (if equipped) 21 Not Used 22 Not Used 23 Not Used 24 Heater, Ventilation and Air Conditioning Ignition/Heater, Ventilation and Air Conditioning Auxiliar 25 Instrument Cluster Ignition/Sensing Diagnostic Module Ignition 26 Tilt Column/SEO, Tilt Column Lock 1/SEO 27 Data Link Connector/ Driver Seat Module 28 Passive Entry/Passive Start/Heater, Ventilation and Air Conditioning Battery 29 Content Theft 30 Not Used 31 Not Used 32 Not Used 33 SEO/Automatic Level Contro 34 Park Enable Electric Adjustable Pedal (if equipped) 35 Not Used 36 Miscellaneous R/C 37 Heated Steering Wheel 38 Steering Column Lock 2 (if equipped) 39 Instrument Cluster Battery 40 Not Used 41 Not Used 42 Euro Trailer (if equipped) 43 Left Doors 44 Driver Power Seat 45 Not Used 46 Right Heated/ Cooled Seat 47 Left Heated/ Cooled Seat 48 Not Used 49 Not Used 50 Accessory Power Outlet 2 51 Not Used 52 Retained Accessory Power/Accessory Relay 53 Run/Crank Relay 54 Not Used 55 Not Used 56 Not Used
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Assignment of the fuses and relays in the Instrument panel fuse box (Right) (2015, 2016)
Fuse Data
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No. Description 1 Not Used 2 Not Used 3 Not Used 4 Accessory Power Outlet 4 5 Not Used 6 Not Used 7 Not Used 8 Glove Box 9 Not Used 10 Not Used 11 Not Used 12 Steering Wheel Controls 13 Body Control Module 8 14 Not Used 15 Not Used 16 Not Used 17 Not Used 18 Not Used 19 Body Control Module 4 20 Rear Seat Entertainment 21 Sunroof 22 Not Used 23 Not Used 24 Not Used 25 Not Used 26 Info/Airbag 27 Spare/RF WDW RN SW 28 Obstacle Detection/USB 29 Radio 30 Not Used 31 Not Used 32 Not Used 33 Not Used 34 Not Used 35 SEO B2 36 SEO 37 Body Control Module 2 38 A/C Inverter 39 Not Used 40 Not Used 41 Not Used 42 Not Used 43 Not Used 44 Right Door Window Motor 45 Front Blower 46 Body Control Module 6 47 Body Control Module 7 48 Amplifier 49 Right Front Seat 50 Accessory Power Outlet 3 51 Not Used 52 Retained Accessory Power/Accessory Relay 53 Not Used 54 Not Used 55 Not Used 56 Not Used
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Assignment of the fuses in the Luggage Compartment Fuse Block (2015, 2016)
Fuse Data
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No. Type Description 2 Micro Fuse Heated Second Row Seat Left 3 Micro Fuse Heated Second Row Seat Right 4 Micro Fuse Heated Mirrors 5 Micro Fuse Liftgate 6 Micro Fuse Glass Breakage 7 Micro Fuse Liftglass 8 Micro Fuse Liftgate Module Logic 9 Micro Fuse Rear Wiper 10 Micro Fuse Rear Heater, Ventilation and Air Conditioning Blower 11 Micro Fuse Second Row Seat 19 Micro Fuse Rear Fog Lamp (if equipped) 12 M-Type Fuse Liftgate Module 13 M-Type Fuse Third Row Seat 14 M-Type Fuse Rear Accessory Power Outlet 15 M-Type Fuse Rear Defogger
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Assignment of the relays in the Luggage Compartment Fuse Block (2015, 2016)
Fuse Data
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No. Type Description 1 ISO Mini Relay Rear Defogger 16 Ultra Micro Relay Liftgate 17 Micro Relay Liftgate 18 Micro Relay Rear Fog Lamp (if equipped) 19 Micro Relay Heated Mirrors
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Assignment of the fuses in the engine compartment (2017-2020)
Fuse Data
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No. Description 1 2017-2019: Electric Running Boards. 2 ABS Pump 3 Interior BEC LT1 4 Passenger motorized safety belt 5 Suspension Leveling Compressor 6 4WD Transfer Case Electronic Control 7 — 8 — 9 2017: Not Used. 10 Electric parking brake 11 — 12 — 13 Interior BEC LT2 14 Rear BEC 1 15 — 16 — 17 Driver motorized safety belt 18 — 19 — 20 — 21 2017: ALC Exhaust Solenoid. 22 2018-2020: Fuel pump. 23 Integrated Chassis Control Module 24 Real Time Dampening 25 Fuel Pump Power Module 26 2017-2018: Not Used/Battery Regulated Voltage Control. 27 — 28 Upffiter 2 29 Upfitter 2 Relay 30 Wiper 31 TIM (Trailer interface module) 32 — 33 — 34 Reverse lamps 35 ABS Valve 36 Trailer Brakes 37 Upfitter 3 Relay 38 — 39 Right trailer stoplamp/Turn signal lamp 40 Left trailer stoplamp/turn signal lamp 41 Trailer parking lamps 42 Right Parking Lamps 43 Left Parking Lamps 44 Upfitter 3 45 Automatic Level Control Run/Crank 46 — 47 Upfitter 4 48 Upfitter 4 Relay 49 Reverse Lamps 50 — 51 Parking Lamp Relay 52 — 53 — 54 — 55 — 56 — 57 — 58 — 59 Euro Trailer 60 A/C Control 61 — 62 — 63 Upfitter 1 64 — 65 — 66 — 67 Trailer Battery 68 2017: Not Used. 69 RC Upfitter 3 and 4 70 VBAT Upfitter 3 and 4 71 — 72 Upfitter 1 Relay 73 — 74 Engine Control Module / Ignition 75 Miscellaneous / Ignition / Spare 76 Transmission Ignition 77 RC Upfitter 1 and 2 78 VBAT Upfitter 1 and 2 79 — 80 — 81 — 82 — 83 Euro Trailer RC 84 Run/Crank Relay 85 — 86 — 87 2017-2018: Engine. 88 Injector A – Odd 89 Injector B – Even 90 O2 Sensor B 91 Throttle Control 92 Engine Control Module Relay 93 Horn 94 Fog Lamps 95 High-Beam Headlamps 96 — 97 — 98 — 99 — 100 O2 Sensor A 101 Engine Control Module 102 Engine Control Module/ Transmission Control Module 103 Auxiliary Interior Heater 104 Starter 105 — 106 — 107 Aeroshutter 108 — 109 Police Upfitter 110 — 111 — 112 Starter Relay 113 — 114 Front Windshield Washer 115 Rear Window Washer 116 Left cooling fan 117 Fuel pump prime 118 — 119 — 120 Fuel pump prime 121 Right HID Headlamp 122 Left HID Headlamp 123 Right cooling fan
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Assignment of the fuses in the Instrument panel fuse box (Left) (2017-2020)
Fuse Data
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No. Description 1 — 2 — 3 — 4 Accessory Power Outlet 1 5 2017: Retained Accessory Power/Accessory. 6 Accessory power outlet from battery power 7 Universal Garage Door Opener/lnside RearView Mirror 8 SEO Retained Accessory Powe 9 — 10 Body Control Module 3 11 Body Control Module 5 12 Steering Wheel Controls Backlighting 13 — 14 — 15 — 16 Discrete Logic Ignition Sensor 17 2017-2018: Video processing module. 18 Mirror Window Module 19 Body Control Module 1 20 Front Bolster (if equipped) 21 — 22 — 23 — 24 2017-2018: HVAC/Ignition. 25 Instrument Cluster Ignition / Sensing Diagnostic Module / Ignition 26 2017-2018: Tilt Column/SEO, Tilt Column Lock 1/SEO. 27 Data Link Connector/ Driver Seat Module 28 2017-2018: Passive entry/Passive start/HVAC battery. 29 Content theft deterrent 30 — 31 — 32 — 33 2017: SEO/Automatic Level Control 34 Park Enable Electric Adjustable Pedal (it equipped) 35 — 36 Miscellaneous/Run crank 37 Heated Steering Wheel 38 Steering Column Lock 2 (if equipped) 39 Instrument Cluster Battery 40 — 41 — 42 Euro Trailer (if equipped) 43 Left Doors 44 Driver Power Seat 45 — 46 Right heated, cooled, or ventilated seat (if equipped) 47 Left heated, cooled, or ventilated seat (if equipped) 48 — 49 — 50 Accessory Power Outlet 2 relay 51 — 52 Retained accessory power relay 53 Run/Crank Relay 54 — 55 — 56 —
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Assignment of the fuses in the Instrument panel fuse box (Right) (2017-2020)
Fuse Data
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No. Description 1 — 2 — 3 — 4 Accessory Power Outlet 4 5 — 6 — 7 — 8 Glove Box 9 — 10 — 11 — 12 Steering Wheel Controls 13 Body Control Module 8 14 — 15 — 16 — 17 — 18 — 19 Body Control Module 4 20 Rear Seat Entertainment 21 2017-2019: Sunroof. 22 — 23 — 24 — 25 — 26 Infotainment/Airbag 27 -/RF window switch/ Rain sensor 28 Obstacle Detection/USB 29 Radio 30 — 31 — 32 — 33 — 34 — 35 — 36 Special equipment option B2 37 Special equipment option 38 Body control module 2 39 DC to AC inverter 40 — 41 — 42 — 43 — 44 Right Door Window Motor 45 Front Blower 46 Body Control Module 6 47 Body Control Module 7 46 Amplifier 49 Right Front Seat 50 Accessory Power Outlet 3 51 — 52 Retained accessory power relay 53 — 54 — 55 — 56 —
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Assignment of the fuses in the Rear Compartment Fuse Block (2017-2020)
Fuse Data
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No. Description 1 Rear defogger relay 2 Left heated second row seat 3 Right heated second row seat 4 Heated Mirrors 5 Liftgate 6 Glass Breakage 7 Liftglass 8 Liftgate Module Logic 9 Rear Wiper 10 Rear HVAC blower 11 Second Row Seat 12 2017: Second row seat. 13 2017: Liftgate module. 14 Rear accessory power outlet 15 Rear defogger 16 Liftgate relay 17 Liftglass relay 18 Rear fog lamp relay (if equipped) 19 Rear fog lamp (if equipped) 20 Heated mirror relay
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