Fuse Box Diagrams GMC Sierra 1500 (GMT T1XX; 2019-2022)

In this article, you will find information about the fuses of the GMC Sierra 1500 (GMT T1XX; models 2019, 2020, 2021, and 2022), including diagrams of the fuse boxes, a list of fuses and relays, their designation, and the location of the fuse blocks within the vehicle.

GMC Sierra (GMT T1XX; 2019-2023)

Checking and Replacing Fuses in GMC Sierra / Sierra Denali 1500

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. To check a fuse, look at the silver-colored band inside the fuse. If the band is broken or melted, replace the fuse.  If there is a problem on the road and a fuse needs to be replaced, there are some spare fuses and a fuse puller in the left instrument panel fuse block.

Caution!

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

Location of Fuse Boxes

Engine Compartment Fuse Block:
The engine compartment fuse block is in the engine compartment, on the passenger side of the vehicle. Lift the cover to access the fuse block.
GMC Sierra (GMT T1XX; 2019-2023): Engine compartment fuse box location

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 front of the fuse block.
GMC Sierra (GMT T1XX; 2019-2023): Instrument panel fuse box locationTo access the back of the fuse block:

  1. Push the tab at the top of fuse block down.
  2. Pull the top of the fuse block outward.
  3. Reverse Steps 1–2 to reinstall.

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.
GMC Sierra (GMT T1XX; 2019-2023): Instrument panel fuse box location

An electrical overload may cause the lamps to go on and off, or in some cases to remain off. Have the headlamp wiring checked right away if the lamps go on and off or remain off.

If the wiper motor overheats due to heavy snow or ice, the windshield wipers will stop until the motor cools and will then restart.


Fuse Box Diagrams

2019

Engine Compartment Fuse Block

GMC Sierra (GMT T1XX; 2019): Engine compartment fuse box diagram

List of fuses in the Engine Compartment Fuse Block (2019)
Usage
1 High-beam left
2High-beam right
3 Headlamp left
4Headlamp right
6TIM
7-
8Fog lamp
9VKM
10-
11Police upfitter
12-
13Washer front
14Washer rear
15MSB driver
16-
17IECL 1
19DC/AC inverter
20IECR 2
21MSB pass
22IECL 2
24Electric brake booster 1
25REC
26-
27Horn
28-
29-
30-
31-
32Rear window defogger
33Heated mirror
34Parking lamp left
37Euro trailer
38TIM
39-
40Misc ignition
41Trailer parking lamp
42Park lamp right
44-
45Second fuel pump
46Engine control module ignition
47Transmission control module ignition
48-
49Transmission control module
50A/C clutch
51Transfer case control module
52Front wiper
53Center high-mounted stop lamp
54Trailer reverse lamp
55Trailer back-up lamp
56SADS
57TTPM
58Starter motor
60Active fuel management 1
61VES
62Integrated chassis control module / CVS
63Trailer battery
65Auxiliary underhood electrical center
66Cooling fan motor left
67Active fuel management 2
68-
69Starter pinion
71Cooling fan
72Cooling fan right
73Trailer stop/turn lamp left
74TIM
75DEFC
76Electric RNG BDS
78Engine control module
79Auxiliary battery
80Cabin cooling pump
81Trailer stop/turn lamp right
82TIM
83FTZM
84Trailer brake
85ENG
86Engine control module
87Injector B even
88O2 B sensor
89O2 A sensor
90Injector A odd
91Engine control module throttle control
92Cool fan clutch
Relays
5Headlamp
18DC/AC inverter
23Rear window defogger
35Parking lamp
36Run/Crank
43Second fuel pump
59A/C clutch
64Starter motor
70Starter pinion
77Powertrain
Instrument Panel Fuse Block (Right)

GMC Sierra (GMT T1XX; 2019): Instrument panel fuse box diagram

List of fuses in the Instrument Panel Fuse Block (Right) (2019)
Usage
F1Right doors
F2Left doors
F3Universal remote system
F4-
F5-
F6Front blower
F8Lumbar switch
F10Body control module 6 / Body control module 7
F11Seat/CLM
F12Body control module 3 / Body control module 5
F14Mirrors / Windows module
F17Steering wheel controls
F18VPM / OBS DET
F19DLIS
F20Cooled seats
F21NOT R/C
F22Heated steering wheel
F23MISC R/C
F24Instrument panel cluster ignition / Overhead
F25Heating, ventilation, and air conditioning ignition / Heating, ventilation, and air conditioning auxiliary
F26USB ports / Special equipment option retained accessory power
F27Accessory power outlet / retained accessory power
F28Accessory power outlet / Battery
F30Sensing and diagnostic module / Parking brake
F31Body control module 4
F32Special equipment option / Data link connection
F33Body control module 8
F34Cargo lamp
F40CGM
F41Infotainment 1
F42TCP
F43-
F44AVM
F45Body control module 2
F46Heating, ventilation, and air conditioning / Battery 1
F47Instrument panel cluster / Battery
F48Transmission control module
F49Body control module 1
F50-
F51Battery 1
F52Battery 2
F53-
F54Sunroof
F55Driver power seat
F56DC DC TRANS 1
F57DC DC TRANS 2
F58Infotainment 2
Circuit Breakers
1Accessory power outlet 2
2Accessory power outlet 1 / Cigarette Lighter
3Accessory power outlet 3
4Accessory power outlet 4
Relays
K1Run/Crank
K2Retained accessory power / Accessory 1
K4Retained accessory power / Accessory 2
K5-
Instrument Panel Fuse Block (Left)

GMC Sierra (GMT T1XX; 2019): Instrument panel fuse box diagram

List of fuses in the Instrument Panel Fuse Block (Left) (2019)
Usage
F1Rear heated seats left/right
F3Euro trailer
F4-
F5Front Bolster
F6Heated and ventilated seats left/right
F8Rear seat entertainment / Theft deterrent
F9Passive entry / Passive start / Driver seat module
F10-
F11Sunshade
F12Passenger power seat
F13Export power take off / Special equipment option 1
F14-
F15-
F16AMP
F17MFEG
F18-
F19-
F20Endgate
F22 Rear sliding window
F23-
F24-
F25-
F26-
F27-
Circuit Breakers
CB1-
Relays
K1Rear sliding window open
K2Rear sliding window close
K3MFEG major 1
K4MFEG minor 1
K5MFEG minor 2
K6MFEG major 2
K7Anti-theft
K8-

2020

Engine Compartment Fuse Block

GMC Sierra (GMT T1XX; 2020): Engine compartment fuse box diagram

List of fuses in the Engine Compartment Fuse Block (2020)
Usage
1 High-beam left
2High-beam right
3Headlamp left
4Headlamp right
6TIM
7-
8Fog lamp
9VKM
10-
11Police upfitter
12-
13Washer front
14Washer rear
15MSB driver
16-
17IECL 1
19DC/AC inverter
20IECR 2 (LD) / EBCM2 (HD)
21MSB pass
22IECL 2
24EBCM 1
25REC
26-
27Horn
28-
29-
30-
31-
32Rear window defogger
33Heated mirror
34Parking lamp left
37Euro trailer
38TIM
39-
40Misc ignition
41Trailer parking lamp
42Park lamp right
44-
45Second fuel pump
46Engine control module ignition
47Transmission control module ignition
48-
49Transmission control module
50A/C clutch
51Transfer case control module
52Front wiper
53Center high-mounted stop lamp
54Trailer reverse lamp
55Trailer back-up lamp
56SADS
57TTPM
58Starter motor (LD & HD DSL)
60Active fuel management 1
61VES
62Integrated chassis control module / CVS
63Trailer battery
65Auxiliary underhood electrical center
66Cooling fan motor left
67Active fuel management 2
68-
69Starter Pinion (LD) / Starter Motor (HD Gas)
71Cooling fan
72Cooling fan right
73Trailer stop/turn lamp left
74TIM
75DEFC
76Electric RNG BDS
78Engine control module
79Auxiliary battery
80Cabin cooling pump
81Trailer stop/turn lamp right
82TIM
83FTZM
84Trailer brake
85ENG
86Engine control module
87Injector B even
88O2 B sensor
89O2 A sensor
90Injector A odd
91Engine control module throttle control
92Cool fan clutch
Relays
5Headlamp
18DC/AC inverter
23Rear window defogger
35Parking lamp
36Run/Crank
43Second fuel pump
59A/C clutch
64Starter Motor (LD & HD DSL) / Cool Fan Clutch (HD Gas)
70Starter Pinion (LD) / Starter Motor (HD Gas)
77Powertrain
Instrument Panel Fuse Block (Right)

GMC Sierra (GMT T1XX; 2020): Instrument panel fuse box diagram

List of fuses in the Instrument Panel Fuse Block (Right) (2020)
Usage
F1Right doors
F2Left doors
F3Universal remote system
F4-
F5-
F6Front blower
F8Lumbar switch
F10Body control module 6 / Body control module 7
F11Seat / CLM
F12Body control module 3 / Body control module 5
F14Mirrors / Windows module
F17Steering wheel controls
F18VPM / OBS DET
F19DLIS
F20Ventilated seats
F21NOT R/C
F22Heated steering wheel
F23Ml SC R/C
F24Instrument panel cluster ignition / Overhead
F25Heating, ventilation, and air conditioning ignition / Heating, ventilation, and air conditioning auxiliary
F26USB ports / Special equipment option retained accessory power
F27Accessory power outlet / retained accessory power
F28Accessory power outlet / Battery
F30Sensing and diagnostic module / Parking brake
F31Body control module 4
F32Special equipment option / Data link connection
F33Body control module 8
F34Cargo lamp
F40CGM
F41Infotainment 1
F42TCP
F43-
F44AVM
F45Body control module 2
F46Heating, ventilation, and air conditioning / Battery 1
F47Instrument panel cluster / Battery
F48Transmission control module
F49Body control module 1
F50-
F51Battery 1
F52Battery 2
F53-
F54Sunroof
F55Driver power seat
F56DC DC TRANS 1
F57DC DC TRANS 2
F58Infotainment 2
Circuit Breakers
1Accessory power outlet 2
2Accessory power outlet 1 / Cigarette Lighter
3Accessory power outlet 3
4Accessory power outlet 4
Relays
K1Run/Crank
K2Retained accessory power / Accessory 1
K4Retained accessory power / Accessory 2
K5-
Instrument Panel Fuse Block (Left)

GMC Sierra (GMT T1XX; 2020): Instrument panel fuse box diagram

List of fuses in the Instrument Panel Fuse Block (Left) (2020)
Usage
F1Rear heated seats left/right
F3Euro trailer
F4-
F5Front Bolster
F6Heated and ventilated seats left/right
F8Rear seat entertainment / Theft deterrent
F9Passive entry / Passive start / Driver seat module
F10-
F11Sunshade
F12Passenger power seat
F13Export power take off / Special equipment option 1
F14-
F15-
F16AMP
F17 MFEG
F18-
F19-
F20Endgate
F22Rear sliding window
F23-
F24-
F25-
F26-
F27-
Circuit Breakers
CB1-
Relays
K1 Rear sliding window open
K2Rear sliding window close
K3MFEG major 1
K4MFEG minor 1
K5MFEG minor2
K6MFEG major2
K7Anti-theft
K8-

2021

Engine Compartment Fuse Block

GMC Sierra (GMT T1XX; 2021): Engine compartment fuse box diagram

List of fuses in the Engine Compartment Fuse Block (2021)
Usage
1High-beam left
2High-beam right
3Headlamp left
4Headlamp right
6-
7-
8Fog lamp
9-
10-
11Police upfitter
12-
13Washer front
14Washer rear
15-
16-
17IECL 1
19DC/AC inverter
20IECR 2 (LD) / EBCM 2 (HD)
21-
22IECL 2
24EBCM 1
25-
26-
27Horn
28-
29-
30-
31-
32Rear window defogger
33Heated mirror
34Parking lamp left
37-
38-
39-
40Misc ignition
41Trailer parking lamp
42Park lamp right
44-
45-
46Engine control module ignition
47Transmission control module ignition
48-
49Transmission control module
50A/C clutch
51Transfer case control module
52Front wiper
53Center high-mounted stop lamp
54Trailer reverse lamp
55Trailer back-up lamp
56SADS
57TTPM / SBZA
58Starter motor (LD & HD DSL)
60Active fuel management 1
61VES
62Integrated chassis control module / CVS
63Trailer battery
65Auxiliary underhood electrical center
66Cooling fan motor left
67Active fuel management 2
68-
69Starter Pinion (LD) / Starter Motor (HD Gas)
71Cooling fan
72Cooling fan right/Lower
73Trailer stop/turn lamp left
74Trailer Interface Module 1
75DEFC
76Electric RNG BDS
78Engine control module
79Auxiliary battery
80Cabin cooling pump
81Trailer stop/turn lamp right
82Trailer Interface Module 2
83FTZM
84Trailer brake
85ENG
86Engine control module
87Injector B even
88O2 B sensor
89O2 A sensor
90Injector A odd
91Engine control module throttle control
92Cool fan dutch / Aeroshutter
Relays
5Headlamp
18DC/AC inverter
23Rear window defogger
35Parking lamp
36Run/Crank
43-
59A/C clutch
64Starter Motor (LD & HD DSL)
70Starter Pinion (LD) / Starter Motor (HD Gas)
77Powertrain
Instrument Panel Fuse Block (Right)

GMC Sierra (GMT T1XX; 2021): Instrument panel fuse box diagram

List of fuses in the Instrument Panel Fuse Block (Right) (2021)
Usage
F1Right doors
F2Left doors
F3Universal garage door opener
F4-
F5-
F6Front blower
F8Lumbar switch
F10Body control module 6 / Body control module 7
F11Seat/Column lock module
F12Body control module 3 / Body control module 5
F14Mirrors / Windows module
F17Steering wheel controls
F18Video processing module / Obstacle detection
F19DLIS
F20Ventilated seats
F21NOT R/C
F22Heated steering wheel
F23MISC R/C
F24Instrument panel cluster ignition / Overhead
F25Heating, ventilation, and air conditioning ignition / Heating, ventilation, and air conditioning auxiliary
F26USB ports / Special equipment option retained accessory power
F27Accessory power outlet / retained accessory power
F28Accessory power outlet / Battery
F30Sensing and diagnostic module / Parking brake
F31Body control module 4
F32Special equipment option / Data link connection
F33Body control module 8
F34Cargo lamp
F40CGM
F41Infotainment 1
F42TCP
F43-
F44Active vibration management
F45Body control module 2
F46Heating, ventilation, and air conditioning / Battery 1
F47Instrument panel duster / Battery
F48Transmission control module
F49Body control module 1
F50-
F51Battery 1
F52Battery 2
F53-
F54Sunroof
F55Driver power seat
F56DC DC TRANS 1
F57DC DC TRANS 2
F58Infotainment 2
Circuit Breakers
1Accessory power outlet 2
2Accessory power outlet 1 / Cigarette Lighter
3Accessory power outlet 3
4Accessory power outlet 4
Relays
K1Run/Crank
K2Retained accessory power / Accessory 1
K4Retained accessory power / Accessory 2
K5-
Instrument Panel Fuse Block (Left)

GMC Sierra (GMT T1XX; 2021): Instrument panel fuse box diagram

List of fuses in the Instrument Panel Fuse Block (Left) (2021)
Usage
F1Rear heated seats left/right
F3-
F4-
F5Spare / MFEG
F6Heated and ventilated seats left/right
F8-
F9Passive entry passive start / Spare
F10-
F11-
F12Passenger power seat
F13Export power take off / Special equipment option 1
F14-
F15-
F16AMP
F17-
F18-
F20Endgate
F22Rear sliding window
F23-
F24-
F25-
F26-
F27-
Circuit Breakers
CB1-
Relays
K1Rear sliding window open
K2Rear sliding window close
K3MFEG major 1
K4MFEG minor 1
K5MFEG minor 2
K6MFEG major 2
K7-
K8-

2022

Engine Compartment Fuse Block

GMC Sierra (GMT T1XX; 2022): Engine compartment fuse box diagram

List of fuses in the Engine Compartment Fuse Block (2022)
Usage
1-
2-
3Headlamp Left
4Headlamp Right
6Exterior Lighting Module 7
7Exterior Lighting Module 4
8-
9Exterior Lighting Module 5
10Exterior Lighting Module 6
11Body Control Module 2
12Rear Defog
13Washer Front
14-
15-
16-
17IECL 1
19DC/AC Inverter
20IECR 2
21-
22IECL 2
24Fuel Heater
25EBCM - Electronic Brake Control Module
26-
27Horn
28Park Lamp Mirror / Grill
29-
30Exterior Lighting Module 3
31Exterior Lighting Module 1
32-
33NOT R/C
34Radars
37MISC IP Headline Ignition
38Seat Fan Ignition
39-
40MISC Body Ignition
41Trailer Parking Lamp
42-
44Trailer Integration Module / DEFC / ICCM Ignition
45Secondary Axle Motor
46Engine Control Module / Transmission Control Module / lntegrated Chassis Control Ignition
47-
48-
49Transmission Auxiliary Oil Pump
50A/C Clutch
51Transfer Case Control Module
52Front Wiper
53Center High-Mounted Stoplamp
54-
55Trailer Back-up Lamp
56SADS - Semi Active Damping System
57TTPM / SBZA - Side Blind Zone Alert
58Starter Motor
60PWR / TRN Sensors 2
61-
62DEFC Battery 1 / Canister Vent Solenoid
63Trailer Brake Control Module
65-
66Cooling Fan Motor Left
67-
68DEFC Battery 2
69Starter Pinion
71Cooling Fan
72Cooling Fan Right / Lower
73Trailer Stop/Turn Lamp Left
74Trailer Interface Module 2
75Integrated Chassis Control Module
76Electric Running Board
78Engine Control Module
79Cabin Coll Pump
80Powertrain Sensor 1
81Trailer Stop/Turn Lamp Right
82Trailer Interface Module 1
83FTZM - Fuel Tank Zone Module
84Trailer Battery
85-
86Engine Control Module
87Injector B Even
88O2 B Sensor
89O2 A sensor
90Injector A Odd
91-
92Aeroshutter
Relays
5Rear Defog
18DC/AC Inverter
23Fuel Heater
35Park Lamp / Front Grille Lamp
36Run/Crank
43Secondary Axle Motor
59A/C Clutch
64Starter Motor
70Starter Motor
77Powertrain
Instrument Panel Fuse Block (Right)

GMC Sierra (GMT T1XX; 2022): Instrument panel fuse box diagram

List of fuses in the Instrument Panel Fuse Block (Right) (2022)
Usage
F1Right Doors
F2Left Doors
F3-
F4ELM - Exterior Lighting Module 2
F5High Definition localization Module / lnstrument Panel Cluster / Heads-up Display / Humidity / lntegrated Center Stack
F6Front Blower
F8Left Front Window Switch
F10Steering Tilt (LD) / Upfitter Vehicle Module (HD)
F11Video Processing Module / Overhead Control Camera
F12Central Gateway Module / Telematics Control Platform / Column Lock / Driver Monitor System
F14-
F17Steering Wheel Controls
F18-
F19-
F20-
F21-
F22Heated Steering Wheel
F23-
F24-
F25Spot Lamp Left/Right
F26USB Ports / Special Equipment option Retained Accessory Power
F27Accessory Power Outlet / Retained Accessory Power
F28Accessory Power Outlet / Battery
F30Sensing and Diagnostic Module / Automatic Occupant Sensing
F31Body Control Module 3
F32Remote Function Actuator/ Wireless Charging Module / Aux Jack / Center Stack Module Aux Jack / Trailer Brake Control Switch
F33Body Control Module 4
F34-
F40-
F41-
F42Electric Park Brake Switch
F43-
F44Shifter Interface Board
F45Radio Low
F46-
F47-
F48Transmission Control Module
F49Body Control Module 1
F50-
F51Battery 1
F52Battery 2
F53-
F54Sunroof
F55Driver Power Seat
F56DC/DC Converter Battery 1
F57DC/DC Converter Battery 2
F58-
Circuit Breakers
1Accessory Power Outlet 1
2-
3-
4-
Relays
K1-
K2Retained Accessory Power/ Accessory 1
K4-
K5-
Instrument Panel Fuse Block (Left)

GMC Sierra (GMT T1XX; 2022): Instrument panel fuse box diagram

List of fuses in the Instrument Panel Fuse Block (Left) (2022)
Usage
F1Rear Heated Seats Left/Right
F3-
F4-
F5Spare
F6Heated and Ventilated Seats Left/Right
F8-
F9EOCM - End Object Control Module / Park Assist
F10-
F11-
F12Passenger Power Seat
F13-
F14Data Link Connector
F15-
F16AMP
F17MFEG - Multifunction Endgate Control
F18-
F20Endgate
F22Rear Sliding Window
F23Driver and Passenger Memory Seat Module
F24-
F25-
F26-
F27-
Circuit Breakers
CB1-
Relays
K1Rear Sliding Window Open
K2Rear Sliding Window Close
K3MFEG - Multifunction Endgate Control High
K4-
K5MFEG - Multifunction Endgate Control Minor
K6MFEG - Multifunction Endgate Control Low
K7-
K8-