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Chevrolet Suburban / Tahoe (GMT K2YC/G / K2UC/G; 2015-2020) fuses and relays

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In this article, we consider the eleventh-generation Chevrolet Suburban and fourth-generation Tahoe (GMT K2YC/G / K2UC/G), available from 2015 to 2020. Here you will find fuse box diagrams of Chevrolet Suburban / Tahoe 2015, 2016, 2017, 2018, 2019, and 2020, get information about the location of the fuse panels inside the car, and learn about the assignment of each fuse (fuse layout) and relay.

See other Chevrolet Suburban / Tahoe:


Chevrolet Suburban (GMT400; 1993-1999)…>>

Chevrolet Tahoe (1995-1999)…>>

Chevrolet Suburban (GMT800; 2000-2006)…>>

Chevrolet Suburban (GMT900; 2007-2014)…>>

Chevrolet Tahoe (2007-2014)…>>

Fuse Layout Chevrolet Suburban / Tahoe 2015-2020

Cigar lighter (power outlet) fuses in the Chevrolet Suburban (Tahoe) are the fuses №4 (Accessory Power Outlet 1), №50 (Accessory Power Outlet 2) in the Driver’s Side Instrument panel fuse box; fuses №4 (Accessory Power Outlet 4), №50 (Accessory Power Outlet 3) in the Passenger’s Side Instrument panel fuse box; fuse №14 (Rear accessory power outlet) in the Luggage Compartment 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

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Assignment of the fuses in the Instrument Panel Fuse Box №1 (2016-2020)
№Usage
1Not used
2Not used
3Not used
4Accessory Power Outlet 1
5Retained Accessory Power/Accessory
6Accessory power outlet from battery power
72015-2018: Universal Garage Door Opener/Inside Rear View Mirror.
2019-2020: Universal garage door opener/SEO Roof beacon switch
8SEO / Retained Accessory Power
9Not used
10Body Control Module 3
11Body Control Module 5
12Steering Wheel Controls Backlighting
13Not used
14Not used
15Not used
16Discrete Logic Ignition Sensor
172015-2018: Video processing module.
2019-2020: Video processing module/Virtual key module
18Mirror Window Module
19Body Control Module 1
20Front Bolster (if equipped)
21Not used
22Not used
23Not used
242015-2016: Heater, Ventilation and Air Conditioning Ignition/Heater, Ventilation and Air Conditioning Auxiliary.
2017-2020: HVAC/Ignition
25Instrument cluster/Ignition sensing diagnostic module/Ignition
262015-2018: Tilt Column/SEO, Tilt Column Lock 1/SEO.
2019-2020: Tilt column/Tilt column lock 1/SEO 1/SEO 2
27Data link connector/Driver seat module
282015-2018: Passive Entry/Passive Start/Heater, Ventilation and Air Conditioning Battery.
2019-2020: Passive entry, Passive start/HVAC battery/CGM
29Content theft deterrent
30Not used
31Not used
32Not used
332015-2017: SEO/Automatic Level Control.
2018-2020: SEO automatic level control/Left heated seat
34Park Enable Electric Adjustable Pedal (if equipped)
35Not used
36Miscellaneous/Run crank
37Heated Steering Wheel
38Steering Column Lock 2 (if equipped)
39Instrument Cluster Battery
40Not used
41Not used
42Euro Trailer (if equipped)
43Left Doors
44Driver Power Seat
45Not used
46Right heated, cooled, or ventilated seat (if equipped)
47Left heated, cooled, or ventilated seat (if equipped)
48Not used
49Not used
50Accessory Power Outlet 2
51Not used
52Retained Accessory Power Relay
53Run/Crank Relay
54Not used
55Not used
56Not 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.

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Fuse box diagram

Assignment of the fuses in the Instrument Panel Fuse Box №2 (2016-2020)
№Usage
1Not used
2Not used
3Not used
4Accessory Power Outlet 4
5Not used
6Not used
7Not used
8Not used / Glove box
9Not used
10Not used
11Not used
12Steering Wheel Controls
13Body Control Module 8
14Not used
15Not used
16Not used
17Not used
18Not used
19Body Control Module 4
20Rear Seat Entertainment
21Sunroof/beacon upffiter
22Not used
23Not used
24Not used
25Not used
26Infotainment/Airbag
27Spare/RF window switch/Rain sensor
28Obstacle Detection/USB
29Radio
30Not used
31Not used
32Not used
33Not used
34Not used
35Not used
36Special equipment option B2
37Special equipment option
38Body Control Module 2
39A/C Inverter
40Not used
41Not used
42Not used
43Not used
44Right Door Window Motor
45Front Blower
46Body Control Module 6
47Body Control Module 7
48Amplifier
49Right Front Seat
50Accessory Power Outlet 3
51Not used
52Retained Accessory Power Relay
53Not used
54Not used
55Not used
56Not used

Engine Compartment Fuse Box

Fuse box location

It is located in the engine compartment on the driver’s side.

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Fuse box diagram

Assignment of the fuses and relay in the Engine Compartment (2016-2020)
№Usage
12015-2019: Electric Running Boards.
2020: Power Assist Steps
2Antilock Brake System Pump
3Interior BEC LT1
4Passenger motorized safety belt
5Suspension Leveling Compressor
64WD Transfer Case Electronic Control
7Not used
8Not used
9Fuel pump relay / Not Used
10Electric Parking Brake / Not Used
11Not used
12Not used
13Interior BEC LT2
14Rear BEC 1
15Not used
16Not used
17Driver motorized safety belt
18Not used
19Not used
20Not used
21Automatic headlamp leveling/ Exhaust solenoid
22Fuel pump
23Integrated Chassis Control Module
24Real-Time Dampening
25Fuel Pump Power Module
26Active hydraulic assist/Battery regulated voltage control
27Not used
28Upfitter 2
29Upfitter 2 Relay
30Wiper
31Trailer interface module (TIM)
32Not used
33Not used
34Reverse lamps
35Antilock brake system valve
36Trailer Brakes
37Upfitter 3 Relay
38Not used
39Right trailer stoplamp/Turn signal lamp
40Left trailer stoplamp/turn signal lamp
41Trailer parking lamps
42Right parking lamps
43Left parking lamps
44Upfitter 3
45Automatic Level Control Run/Crank
46Not used
47Upfitter 4
48Upfitter 4 Relay
49Reverse Lamps
50Not used
51Parking Lamp Relay
52Not used
53Not used
54Not used
55Not used
56Not used
57Not used
58Not used
59Euro Trailer
60A/C control
61Not used
62Not used
63Upfitter 1
64Not used
65Not used
66Not used
67Trailer Battery
68Not used / Secondary fuel pump
69RC Upfitter 3 and 4
70VBAT Upfitter 3 and 4
71Not used
72Upfitter 1 Relay
73Not used
74Engine Control Module Ignition
75Miscellaneous Ignition / Spare
76Transmission Ignition
77RC Upfitter 1 and 2
78VBAT Upfitter 1 and 2
79Not used
80Not used
81Not used
82Not used
83Euro Trailer / RC
84Run/Crank Relay
85Not used
86Not used
87Engine / MAF/IAT/Humidity/ TIAP sensor
88Injector A – Odd
89Injector B – Even
90Oxygen Sensor B
91Throttle Control
92Engine Control Module Relay
93Horn
94Fog Lamps
95High-Beam Headlamps
96Not used
97Not used
98Not used
99Not used
100Oxygen Sensor A
101Engine Control Module
102Engine Control Module/Transmission Control Module
103Auxiliary Interior Heater
104Starter
105Not used
106Not used
107AeroShutter
108Not used
109Police Upfitter
110Not used
111Not used
112Starter Relay
113Not used
114Front Windshield Washer
115Rear Window Washer
116Left cooling fan
117Fuel pump prime
118Not used
119Not used
120Fuel pump prime relay
121Right HID headlamp
122Left HID Headlamp
123Right cooling fan

Luggage Compartment Fuse Box

Fuse box location

It is located in the left side of the luggage compartment behind the cover.

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Fuse box diagram

Assignment of the fuses and relay in the Luggage Compartment (2016-2020)
№Usage
2Left heated second row seat / Not used
3Right heated second row seat
4Heated Mirrors
5Liftgate
6Glass Breakage
7Liftglass
8Liftgate Module Logic
9Rear Wiper
10Rear Heater, Ventilation and Air Conditioning Blower
11Second Row Seat
12Liftgate module
13Third row seat
14Rear accessory power outlet
15Rear defogger
Relay:
1Rear defogger
16Liftgate
17Liftglass
18Rear fog lamp (if equipped)
19Rear Fog Lamp (if equipped)
20Heated mirror
Learn more:

How to check the fuses?

How to replace a blown fuse?

Why do car fuses blow?

Types of automotive fuses

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