In this article we take a look at the eleventh generation Chevrolet Suburban and the fourth generation Tahoe (GMT K2YC/G / K2UC/G), available from 2015 to 2020. Here you will find the Chevrolet Suburban / Tahoe 2015, 2016, 2017, 2018, 2019 and 2020 fuse box outline, get information on the location of the fuse boxes inside the vehicle and learn about the allocation of each fuse (fuse layout) and relay.
The fuses for the cigar lighter socket in the Chevrolet Suburban (Tahoe) are fuses №4 (accessory socket 1), №50 (accessory socket 2) in the driver’s side instrument panel fuse box; fuses №4 (accessory socket 4), №50 (accessory socket 3) in the passenger side instrument panel fuse box; fuse №14 (rear accessory socket) in the cargo area fuse box.
Instrument Panel Fuse Box №1 (Driver’s Side)
Fuse box location
It is located on the driver’s side of the instrument panel, behind the cover.
Fuse box diagram
Assignment of the fuses in the Instrument Panel Fuse Box №1 (2016-2020)
| № | Usage |
|---|---|
| 1 | Not used |
| 2 | Not used |
| 3 | Not used |
| 4 | Accessory Power Outlet 1 |
| 5 | Retained Accessory Power/Accessory |
| 6 | Accessory power outlet from battery power |
| 7 | 2015-2018: Universal Garage Door Opener/Inside Rear View Mirror. 2019-2020: Universal garage door opener/SEO Roof beacon switch |
| 8 | SEO / Retained Accessory Power |
| 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 | 2015-2018: 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 | Not used |
| 22 | Not used |
| 23 | Not used |
| 24 | 2015-2016: Heater, Ventilation and Air Conditioning Ignition/Heater, Ventilation and Air Conditioning Auxiliary. 2017-2020: HVAC/Ignition |
| 25 | Instrument cluster/Ignition sensing diagnostic module/Ignition |
| 26 | 2015-2018: 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 | 2015-2018: Passive Entry/Passive Start/Heater, Ventilation and Air Conditioning Battery. 2019-2020: Passive entry, Passive start/HVAC battery/CGM |
| 29 | Content theft deterrent |
| 30 | Not used |
| 31 | Not used |
| 32 | Not used |
| 33 | 2015-2017: SEO/Automatic Level Control. 2018-2020: SEO automatic level control/Left heated seat |
| 34 | Park Enable Electric Adjustable Pedal (if equipped) |
| 35 | Not used |
| 36 | Miscellaneous/Run crank |
| 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, or ventilated seat (if equipped) |
| 47 | Left heated, cooled, or ventilated seat (if equipped) |
| 48 | Not used |
| 49 | Not used |
| 50 | Accessory Power Outlet 2 |
| 51 | Not used |
| 52 | Retained Accessory Power Relay |
| 53 | Run/Crank Relay |
| 54 | Not used |
| 55 | Not used |
| 56 | Not used |
Instrument Panel Fuse Box №2 (Passenger’s Side)
Fuse box location
It is located on the passenger side of the instrument panel, behind the cover.
Fuse box diagram
Assignment of the fuses in the Instrument Panel Fuse Box №2 (2016-2020)
| № | Usage |
|---|---|
| 1 | Not used |
| 2 | Not used |
| 3 | Not used |
| 4 | Accessory Power Outlet 4 |
| 5 | Not used |
| 6 | Not used |
| 7 | Not used |
| 8 | Not used / 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/beacon upffiter |
| 22 | Not used |
| 23 | Not used |
| 24 | Not used |
| 25 | Not used |
| 26 | Infotainment/Airbag |
| 27 | Spare/RF window switch/Rain sensor |
| 28 | Obstacle Detection/USB |
| 29 | Radio |
| 30 | Not used |
| 31 | Not used |
| 32 | Not used |
| 33 | Not used |
| 34 | Not used |
| 35 | Not used |
| 36 | Special equipment option B2 |
| 37 | Special equipment option |
| 38 | Body Control Module 2 |
| 39 | A/C Inverter |
| 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 Relay |
| 53 | Not used |
| 54 | Not used |
| 55 | Not used |
| 56 | Not used |
Engine Compartment Fuse Box
Fuse box location
It is located in the engine compartment on the driver’s side.
Fuse box diagram
Assignment of the fuses and relay in the Engine Compartment (2016-2020)
| № | Usage |
|---|---|
| 1 | 2015-2019: Electric Running Boards. 2020: Power Assist Steps |
| 2 | Antilock Brake System Pump |
| 3 | Interior BEC LT1 |
| 4 | Passenger motorized safety belt |
| 5 | Suspension Leveling Compressor |
| 6 | 4WD Transfer Case Electronic Control |
| 7 | Not used |
| 8 | Not used |
| 9 | Fuel pump relay / Not Used |
| 10 | Electric Parking Brake / Not Used |
| 11 | Not used |
| 12 | Not used |
| 13 | Interior BEC LT2 |
| 14 | Rear BEC 1 |
| 15 | Not used |
| 16 | Not used |
| 17 | Driver motorized safety belt |
| 18 | Not used |
| 19 | Not used |
| 20 | Not used |
| 21 | Automatic headlamp leveling/ Exhaust solenoid |
| 22 | Fuel pump |
| 23 | Integrated Chassis Control Module |
| 24 | Real-Time Dampening |
| 25 | Fuel Pump Power Module |
| 26 | Active hydraulic assist/Battery regulated voltage control |
| 27 | Not used |
| 28 | Upfitter 2 |
| 29 | Upfitter 2 Relay |
| 30 | Wiper |
| 31 | Trailer interface module (TIM) |
| 32 | Not used |
| 33 | Not used |
| 34 | Reverse lamps |
| 35 | Antilock brake system valve |
| 36 | Trailer Brakes |
| 37 | Upfitter 3 Relay |
| 38 | Not used |
| 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 | Not used |
| 47 | Upfitter 4 |
| 48 | Upfitter 4 Relay |
| 49 | Reverse Lamps |
| 50 | Not used |
| 51 | Parking Lamp Relay |
| 52 | Not used |
| 53 | Not used |
| 54 | Not used |
| 55 | Not used |
| 56 | Not used |
| 57 | Not used |
| 58 | Not used |
| 59 | Euro Trailer |
| 60 | A/C control |
| 61 | Not used |
| 62 | Not used |
| 63 | Upfitter 1 |
| 64 | Not used |
| 65 | Not used |
| 66 | Not used |
| 67 | Trailer Battery |
| 68 | Not used / Secondary fuel pump |
| 69 | RC Upfitter 3 and 4 |
| 70 | VBAT Upfitter 3 and 4 |
| 71 | Not used |
| 72 | Upfitter 1 Relay |
| 73 | Not used |
| 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 | Not used |
| 80 | Not used |
| 81 | Not used |
| 82 | Not used |
| 83 | Euro Trailer / RC |
| 84 | Run/Crank Relay |
| 85 | Not used |
| 86 | Not used |
| 87 | Engine / MAF/IAT/Humidity/ TIAP sensor |
| 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 |
| 96 | Not used |
| 97 | Not used |
| 98 | Not used |
| 99 | Not used |
| 100 | Oxygen Sensor A |
| 101 | Engine Control Module |
| 102 | Engine Control Module/Transmission Control Module |
| 103 | Auxiliary Interior Heater |
| 104 | Starter |
| 105 | Not used |
| 106 | Not used |
| 107 | AeroShutter |
| 108 | Not used |
| 109 | Police Upfitter |
| 110 | Not used |
| 111 | Not used |
| 112 | Starter Relay |
| 113 | Not used |
| 114 | Front Windshield Washer |
| 115 | Rear Window Washer |
| 116 | Left cooling fan |
| 117 | Fuel pump prime |
| 118 | Not used |
| 119 | Not used |
| 120 | Fuel pump prime relay |
| 121 | Right HID headlamp |
| 122 | Left HID Headlamp |
| 123 | Right cooling fan |
Luggage Compartment Fuse Box
Fuse box location
It is located in the left side of the luggage compartment behind the cover.
Fuse box diagram
Assignment of the fuses and relay in the Luggage Compartment (2016-2020)
| № | Usage |
|---|---|
| 2 | Left heated second row seat / Not used |
| 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 Heater, Ventilation and Air Conditioning Blower |
| 11 | Second Row Seat |
| 12 | Liftgate module |
| 13 | Third row seat |
| 14 | Rear accessory power outlet |
| 15 | Rear defogger |
| Relay: | |
| 1 | Rear defogger |
| 16 | Liftgate |
| 17 | Liftglass |
| 18 | Rear fog lamp (if equipped) |
| 19 | Rear Fog Lamp (if equipped) |
| 20 | Heated mirror |
