2015 - 2020 Chevrolet Tahoe / Suburban Fuse Box Diagram

2020 Chevrolet Tahoe

Fuses and Circuit Breakers

The wiring circuits in the vehicle are protected from short circuits by a combination of fuses and circuit breakers.
This greatly reduces the chance of damage caused by electrical problems.
 

Danger
Fuses and circuit breakers are marked with their ampere rating. Do not exceed the specified amperage rating when replacing fuses and circuit breakers. Use of an oversized fuse or circuit breaker can result in a vehicle fire. You and others could be seriously injured or killed.

Warning
Installation or use of fuses that do not meet GM’s original fuse specifications is dangerous. The fuses could fail, and result in a fire. You or others could be injured or killed, and the vehicle could be damaged.

To check a fuse, look at the silver-colored band inside the fuse. If the band is broken or melted, replace the fuse. Be sure to replace a bad fuse with a new one of the identical size and rating.

Fuses of the same amperage can be temporarily borrowed from another fuse location, if a fuse goes out. Replace the fuse as soon as possible.

 

Engine Compartment Fuse Block

 

The engine compartment fuse block is in the engine compartment, on the driver side of the vehicle. Lift the cover to access the fuse block.

 

Caution

Spilling liquid on any electrical component on the vehicle may damage it. Always keep the
covers on any electrical component.

 

A fuse puller is available in the left instrument panel fuse block.

 

Engine Compartment Fuse Panel Diagram

Fuses  ... Usage
1 Power Assist Steps (2016 - 2019 Model - Electric running boards)
2 Antilock brake system (ABS) pump
3 Interior BEC LT1
4 Passenger motorized seat belt
5 Suspension leveling compressor
6 4WD transfer case electronic control
7 –
8 –
10 Electric parking brake/–
11 –
12 –
13 Interior BEC LT2
14 Rear BEC 1
15 –
16 –
17 Driver Motorized Seat Belt (MBS)
18 –
19 –
20 –
21 Automatic headlamp leveling/ Exhaust solenoid
22 Fuel pump (2015 Mpdel - Not Used)
23 Integrated chassis control module
24 Real time dampening
25 Fuel pump power module
26 Active hydraulic assist/Battery regulated voltage control
27 –
28 Upfitter 2
30 Wiper
31 Trailer interface module
32 –
33 –
34 Reverse lamps
35 Antilock brake system (ABS) valve
36 Trailer brakes
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
49 Reverse lamps
50 –

52 –
53 –
54 –
55 –
56 –
57 –
58 –
59 Euro trailer
60 Air conditioning control
61 –
62 –
63 Upfitter 1
64 –

65 –
66 –
67 Trailer battery
68 Secondary fuel pump
69 RC upfitter 3 and 4
70 VBAT upfitter 3 and 4
71 –
73 –
74 Engine control module/Ignition
75 Miscellaneous/ Ignition/–
76 Transmission/ Ignition
77 RC upfitter 1 and 2
78 VBAT upfitter 1 and 2
79 –
80 –
81 –
82 –
83 Euro trailer/RC
85 –
86 –
87 MAF/IAT/Humidity/ TIAP sensor
88 Injector A – odd
89 Injector B – even
90 O2 sensor B
91 Throttle control
93 Horn
94 Fog lamps
95 High-beam headlamps
96 –
97 –
98 –
99 –
100 O2 (Oxygen) 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 –
113 –
114 Front windshield washer
115 Rear window washer
116 Left cooling fan
117 Fuel pump prime
118 –
119 –
120 –
121 Right HID headlamp
122 Left HID headlamp
123 Right cooling fan

Relays ..  Usage
9 Fuel pump
29 Upfitter 2
37 Upfitter 3
48 Upfitter 4
51 Parking lamp
64 Secondary fuel pump
72 Upfitter 1
84 Run/Crank
92 Engine control module
112 Starter
120 Fuel pump prime

Instrument Panel Fuse Block (Left)

 

Instrument Panel Fuse Block (Left)

 

The left instrument panel fuse block access door is on the driver side edge of the instrument panel. Pull off the cover to access the fuse block.

Instrument Panel Fuse Panel Diagram - Left

There are relays on the back of the fuse block. To access, press the tabs and remove the fuse block. The vehicle may not be equipped with all of the fuses, relays, and features shown.

Fuses .. Usage
1 –
2 –
3 –
4 Accessory power outlet 1
5 Accessory power outlet from retained accessory power
6 Accessory power outlet from battery power (APO/BATT)
7 Universal garage door opener/SEO Roof beacon switch
8 SEO/Retained accessory power
9 –
10 Body control module 3
11 Body control module 5
12 Steering wheel control backlighting
13 –
14 –
15 –
16 Discrete logic ignition sensor
17 Video processing module/Virtual key module
18 Mirror window module
19 Body control module 1
20 Front bolster
21 –
22 –
23 –
24 HVAC (Heater, ventilation and air conditioning) ignition/AUX (auxiliary) HVAC ignition
25 Instrument cluster/ Ignition sensing diagnostic module ignition
26 Tilt column/Tilt column lock 1/SEO 1/SEO 2

27 Data link connector/ Driver seat module
28 Passive entry, Passive start/HVAC battery/CGM
29 Content theft deterrent
30 –
31 –
32 –
33 SEO automatic level control/Left heated seat
34 Park enable/Electric adjustable pedal
35 –
36 Miscellaneous/Run crank (R/C)
37 Heated steering wheel
38 Steering column lock 2
39 Instrument cluster battery
40 –
41 –
42 Euro trailer
43 Left doors
44 Driver power seat
45 –
46 Right heated, cooled, or ventilated seat
47 Left heated, cooled, or ventilated seat
48 –
49 –
50 Accessory power outlet 2
56 –

Relays .. Usage
51 –
52 Retained accessory power
53 Run crank
54 –
55 –

56 -

Instrument Panel Fuse Block (Right)

 

 Instrument Panel Fuse Block (Right)

 The right instrument panel fuse block access door is on the passenger side edge of the

 instrument panel. Pull off the cover to access the fuse block.
 

Instrument Panel Fuse Panel Diagram - Right

There are relays on the back of the fuse block. To access, press the tabs and remove the fuse block. The vehicle may not be equipped with all of the fuses, relays, and features shown.

Fuses .. 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 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 (SEO) B2
37 Special equipment option (SEO)
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
48 Amplifier
49 Right front seat
50 Accessory power outlet 3
56 –

 

Relays ..  Usage
51 –
52 Retained accessory power
53 –
54 –
55 –

Rear Compartment Fuse Block

Rear Compartment Fuse Block

The rear compartment fuse block is behind the access panel on the left side of the rear cargo area. Pull the panel out by grabbing the finger access slot at the rear edge. 

 

Rear Compartment Fuse Panel Diagram

 

The vehicle may not be equipped with all of the fuses, relays, and features shown. 

 

Fuses .. Usage

2 –
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 heating, ventilation, and air conditioning blower
11 Second row seat folding
12 Liftgate module
13 Third row seat folding
14 Rear accessory power outlet
15 Rear window defogger
19 Rear fog lamp

Relays .. Usage
1 Rear window defogger
16 Liftgate
17 Liftglass
18 Rear fog lamp
20 Heated mirror