GMC Yukon (2017 – 2020) – fuse box diagram
Year of production: 2017, 2018, 2019, 2020
Engine Compartment Fuse Block
The engine compartment fuse block is in the engine compartment, on the driver side of the vehicle.
| Item | Usage |
|---|---|
| 1 | 2017-2019: Electric Running Boards. 2020: Power assist steps |
| 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. 2018-2020: Fuel pump relay |
| 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. 2018-2020: Automatic headlamp leveling/ 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. 2019-2020: Active Hydraulic Assist/ 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. 2018-2020: Secondary fuel pump |
| 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. 2019-2020: MAF/IAT/Humidity/TIAP sensor |
| 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 |
Instrument Panel Fuse Block (Left)
The left instrument panel fuse block access door is on the driver side edge of the instrument panel.
| № | Usage |
|---|---|
| 1 | — |
| 2 | — |
| 3 | — |
| 4 | Accessory Power Outlet 1 |
| 5 | 2017: Retained Accessory Power/Accessory. 2018-2020: Accessory power outlet from retained accessory power |
| 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. 2019-2020: Video processing module/Virtual key module |
| 18 | Mirror Window Module |
| 19 | Body Control Module 1 |
| 20 | Front Bolster (if equipped) |
| 21 | — |
| 22 | — |
| 23 | — |
| 24 | 2017-2018: HVAC/Ignition. 2019-2020: HVAC ignition/AUX HVAC ignition |
| 25 | Instrument Cluster Ignition / Sensing Diagnostic Module / Ignition |
| 26 | 2017-2018: Tilt Column/SEO, Tilt Column Lock 1/SEO. 2019-2020: Tilt column/Tilt column lock 1/SEO 1/SEO 2 |
| 27 | Data Link Connector/ Driver Seat Module |
| 28 | 2017-2018: Passive entry/Passive start/HVAC battery. 2019-2020: Passive locking, Passive theft-deterrent/HVAC battery |
| 29 | Content theft deterrent |
| 30 | — |
| 31 | — |
| 32 | — |
| 33 | 2017: SEO/Automatic Level Control 2018-2020: SEO/Automatic level control/Left heated seat |
| 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 | — |
Instrument Panel Fuse Block (Right)
The right instrument panel fuse block access door is on the passenger side edge of the instrument panel.
| № | Usage |
|---|---|
| 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. 2020: Sunroof/beacon upffiter |
| 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 | — |
Rear Compartment Fuse Block
The rear compartment fuse block is behind the access panel on the left side of the compartment
| Items | Usage |
|---|---|
| 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. 2018-2020: Liftgate module |
| 13 | 2017: Liftgate module. 2018-2020: Third row seat |
| 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 |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.