Page Contents:
In this article, you will find information about the fuses of the Chevrolet Silverado 1500 / 2500 / 3500 (GMT T1XX) (models 2019, 2020, and 2021), including diagrams of the fuse boxes, a list of fuses and relays, their designation, and the location of the fuse blocks within the vehicle.
Checking and Replacing Fuses in Chevy Silverado
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. A fuse puller is available in the left instrument panel end cap.
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.
Location of Fuse Boxes
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 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.
To access the back of the fuse block:
- Push the tab at the top of fuse block down.
- Pull the top of the fuse block outward.
- Reverse Steps 1-2 to reinstall.
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.
Fuse Box Diagrams
2019
Instrument Panel Fuse Block (Left)
| № | Usage |
|---|---|
| F1 | Rear heated seats left/right |
| F3 | Euro trailer |
| F4 | - |
| F5 | Front Bolster |
| F6 | Heated and cooled seats left/right |
| F8 | Rear seat entertainment / Theft deterrent |
| F9 | Passive entry / Passive start / Driver seat module |
| F10 | - |
| F11 | Sunshade |
| F12 | Passenger power seat |
| F13 | Export power take off / Special equipment option 1 |
| F14 | - |
| F15 | - |
| F16 | AMP |
| F17 | MFEG |
| F18 | - |
| F20 | Endgate |
| F22 | Rear sliding window |
| F23 | - |
| F24 | - |
| F25 | - |
| F26 | - |
| F27 | - |
| CB1 | - |
| K1 | Rear sliding window open |
| K2 | Rear sliding window close |
| K3 | MFEG major 1 |
| K4 | MFEG minor 1 |
| K5 | MFEG minor 2 |
| K6 | MFEG major 2 |
| K7 | Anti-theft |
| K8 | - |
Instrument Panel Fuse Block (Right)
| № | Usage |
|---|---|
| F1 | Right doors |
| F2 | Left doors |
| F3 | Universal remote system |
| F4 | - |
| F5 | - |
| F6 | Front blower |
| F8 | Lumbar switch |
| F10 | Body control module 6 / Body control module 7 |
| F11 | Seat / CLM |
| F12 | Body control module 3 / Body control module 5 |
| F14 | Mirrors/Windows module |
| F17 | Steering wheel controls |
| F18 | VPM / OBS DET |
| F19 | DLIS |
| F20 | Cooled seats |
| F21 | NOT R/C |
| F22 | Heated steering wheel |
| F23 | MISC R/C |
| F24 | Instrument panel cluster ignition / Overhead |
| F25 | Heating, ventilation, and air conditioning ignition / Heating, ventilation, and air conditioning auxiliary |
| F26 | USB ports / Special equipment option retained accessory power |
| F27 | Accessory power outlet / retained accessory power |
| F28 | Accessory power outlet / Battery |
| F30 | Sensing and diagnostic module / Parking brake |
| F31 | Body control module 4 |
| F32 | Special equipment option / Data link connection |
| F33 | Body control module 8 |
| F34 | Cargo lamp |
| F40 | CGM |
| F41 | Infotainment 1 |
| F42 | TCP |
| F43 | - |
| F44 | AVM |
| F45 | Body control module 2 |
| F46 | Pleating, ventilation, and air conditioning / Battery 1 |
| F47 | Instrument panel cluster / Battery |
| F48 | Transmission control module |
| F49 | Body control module 1 |
| F50 | - |
| F51 | Battery 1 |
| F52 | Battery 2 |
| F53 | - |
| F54 | Sunroof |
| F55 | Driver power seat |
| F56 | DC DC TRANS 1 |
| F57 | DC DC TRANS 2 |
| F58 | Infotainment 2 |
| CB1 | Accessory power outlet 2 |
| CB2 | Accessory power outlet 1 / Cigarette Lighter |
| CB3 | Accessory power outlet 3 |
| CB4 | Accessory power outlet 4 |
| K1 | Run/Crank |
| K2 | Retained accessory power / Accessory 1 |
| K4 | Retained accessory power / Accessory 2 |
| K5 | - |
Engine Compartment Fuse Block
| № | Usage |
|---|---|
| 1 | High-beam left |
| 2 | High-beam right |
| 3 | Headlamp left |
| 4 | Headlamp right |
| 6 | TIM |
| 7 | - |
| 8 | Fog lamp |
| 9 | VKM |
| 10 | - |
| 11 | Police upfitter |
| 12 | - |
| 13 | Washer front |
| 14 | Washer rear |
| 15 | MSB driver |
| 16 | - |
| 17 | IECL 1 |
| 19 | DC/AC inverter |
| 20 | IECR2 |
| 21 | MSB pass |
| 22 | IECL 2 |
| 24 | Electric brake booster 1 |
| 25 | REC |
| 26 | - |
| 27 | Horn |
| 28 | - |
| 29 | - |
| 30 | - |
| 31 | - |
| 32 | Rear window defogger |
| 33 | Heated mirror |
| 34 | Parking lamp left |
| 37 | Euro trailer |
| 38 | TIM |
| 39 | - |
| 40 | Misc ignition |
| 41 | Trailer parking lamp |
| 42 | Park lamp right |
| 44 | - |
| 45 | Second fuel pump |
| 46 | Engine control module ignition |
| 47 | Transmission control module ignition |
| 48 | - |
| 49 | Transmission control module |
| 50 | A/C clutch |
| 51 | Transfer case control module |
| 52 | Front wiper |
| 53 | Center high-mounted stop lamp |
| 54 | Trailer reverse lamp |
| 55 | Trailer back-up lamp |
| 56 | SADS |
| 57 | TTPM |
| 58 | Starter motor |
| 60 | Active fuel management 1 |
| 61 | VES |
| 62 | Integrated chassis control module / CVS |
| 63 | Trailer battery |
| 65 | Auxiliary underhood electrical center |
| 66 | Cooling fan motor left |
| 67 | Active fuel management 2 |
| 68 | - |
| 69 | Starter pinion |
| 71 | Cooling fan |
| 72 | Cooling fan right |
| 73 | Trailer stop/turn lamp left |
| 74 | TIM |
| 75 | DEFC |
| 76 | Electric RNG BDS |
| 78 | Engine control module |
| 79 | Auxiliary battery |
| 80 | Cabin cooling pump |
| 81 | Trailer stop/turn lamp right |
| 82 | TIM |
| 83 | FTZM |
| 84 | Trailer brake |
| 85 | ENG |
| 86 | Engine control module |
| 87 | Injector B even |
| 88 | O2 B sensor |
| 89 | O2 A sensor |
| 90 | Injector A odd |
| 91 | Engine control module throttle control |
| 92 | Cool fan clutch |
| 5 | Headlamp |
| 18 | DC/AC inverter |
| 23 | Rear window defogger |
| 35 | Parking lamp |
| 36 | Run/Crank |
| 43 | Second fuel pump |
| 59 | A/C clutch |
| 64 | Starter motor |
| 70 | Starter pinion |
| 77 | Powertrain |
2020
Instrument Panel Fuse Block (Left)
| № | Usage |
|---|---|
| F1 | Rear heated seats left/right |
| F3 | Euro trailer |
| F4 | - |
| F5 | Front Bolster |
| F6 | Heated and ventilated seats left/right |
| F8 | Rear seat entertainment / Theft deterrent |
| F9 | Passive entry / Passive start / Driver seat module |
| F10 | - |
| F11 | Sunshade |
| F12 | Passenger power seat |
| F13 | Export power take off / Special equipment option 1 |
| F14 | - |
| F15 | - |
| F16 | AMP |
| F17 | MFEG |
| F18 | - |
| F20 | Endgate |
| F22 | Rear sliding window |
| F23 | - |
| F24 | - |
| F25 | - |
| F26 | - |
| F27 | - |
| CB1 | - |
| K1 | Rear sliding window open |
| K2 | Rear sliding window close |
| K3 | MFEG major 1 |
| K4 | MFEG minor 1 |
| K5 | MFEG minor 2 |
| K6 | MFEG major 2 |
| K7 | Anti-theft |
| K8 | - |
Instrument Panel Fuse Block (Right)
| № | Usage |
|---|---|
| F1 | Right doors |
| F2 | Left doors |
| F3 | Universal remote system |
| F4 | - |
| F5 | - |
| F6 | Front blower |
| F8 | Lumbar switch |
| F10 | Body control module 6 / Body control module 7 |
| F11 | Seat / CLM |
| F12 | Body control module 3 / Body control module 5 |
| F14 | Mirrors/Windows module |
| F17 | Steering wheel controls |
| F18 | VPM / OBS DET |
| F19 | DLIS |
| F20 | Ventilated seats |
| F21 | NOT R/C |
| F22 | Heated steering wheel |
| F23 | MISC R/C |
| F24 | Instrument panel cluster ignition / Overhead |
| F25 | Heating, ventilation, and air conditioning ignition / Heating, ventilation, and air conditioning auxiliary |
| F26 | USB ports / Special equipment option retained accessory power |
| F27 | Accessory power outlet / retained accessory power |
| F28 | Accessory power outlet / Battery |
| F30 | Sensing and diagnostic module / Parking brake |
| F31 | Body control module 4 |
| F32 | Special equipment option/Data link connection |
| F33 | Body control module 8 |
| F34 | Cargo lamp |
| F40 | CGM |
| F41 | Infotainment 1 |
| F42 | TCP |
| F43 | - |
| F44 | AVM |
| F45 | Body control module 2 |
| F46 | Heating, ventilation, and air conditioning / Battery 1 |
| F47 | Instrument panel cluster / Battery |
| F48 | Transmission control module |
| F49 | Body control module 1 |
| F50 | - |
| F51 | Battery 1 |
| F52 | Battery 2 |
| F53 | - |
| F54 | Sunroof |
| F55 | Driver power seat |
| F56 | DC DC TRANS 1 |
| F57 | DC DC TRANS 2 |
| F58 | Infotainment 2 |
| CB1 | Accessory power outlet 2 |
| CB2 | Accessory power outlet 1 / Cigarette Lighter |
| CB3 | Accessory power outlet 3 |
| CB4 | Accessory power outlet 4 |
| K1 | Run/Crank |
| K2 | Retained accessory power / Accessory 1 |
| K4 | Retained accessory power / Accessory 2 |
| K5 | - |
Engine Compartment Fuse Block
| № | Usage |
|---|---|
| 1 | High-beam left |
| 2 | High-beam right |
| 3 | Headlamp left |
| 4 | Headlamp right |
| 6 | TIM |
| 7 | - |
| 8 | Fog lamp |
| 9 | VKM |
| 10 | - |
| 11 | Police upfitter |
| 12 | - |
| 13 | Washer front |
| 14 | Washer rear |
| 15 | MSB driver |
| 16 | - |
| 17 | IECL 1 |
| 19 | DC/AC inverter |
| 20 | IECR2 (LD) / EBCM2 (HD) |
| 21 | MSB pass |
| 22 | IECL 2 |
| 24 | EBCM 1 |
| 25 | REC |
| 26 | - |
| 27 | Horn |
| 28 | - |
| 29 | - |
| 30 | - |
| 31 | - |
| 32 | Rear window defogger |
| 33 | Heated mirror |
| 34 | Parking lamp left |
| 37 | Euro trailer |
| 38 | TIM |
| 39 | - |
| 40 | Misc ignition |
| 41 | Trailer parking lamp |
| 42 | Park lamp right |
| 44 | - |
| 45 | Second fuel pump |
| 46 | Engine control module ignition |
| 47 | Transmission control module ignition |
| 48 | - |
| 49 | Transmission control module |
| 50 | A/C clutch |
| 51 | Transfer case control module |
| 52 | Front wiper |
| 53 | Center high-mounted stop lamp |
| 54 | Trailer reverse lamp |
| 55 | Trailer back-up lamp |
| 56 | SADS |
| 57 | TTPM |
| 58 | Starter motor (LD & HD DSL) |
| 60 | Active fuel management 1 |
| 61 | VES |
| 62 | Integrated chassis control module / CVS |
| 63 | Trailer battery |
| 65 | Auxiliary underhood electrical center |
| 66 | Cooling fan motor left |
| 67 | Active fuel management 2 |
| 68 | - |
| 69 | Starter Pinion (LD) / Starter Motor (HD Gas) |
| 71 | Cooling fan |
| 72 | Cooling fan right |
| 73 | Trailer stop/turn lamp left |
| 74 | TIM |
| 75 | DEFC |
| 76 | Electric RNG BDS |
| 78 | Engine control module |
| 79 | Auxiliary battery |
| 80 | Cabin cooling pump |
| 81 | Trailer stop/turn lamp right |
| 82 | TIM |
| 83 | FTZM |
| 84 | Trailer brake |
| 85 | ENG |
| 86 | Engine control module |
| 87 | Injector B even |
| 88 | O2 B sensor |
| 89 | O2 A sensor |
| 90 | Injector A odd |
| 91 | Engine control module throttle control |
| 92 | Cool fan clutch |
| 5 | Headlamp |
| 18 | DC/AC inverter |
| 23 | Rear window defogger |
| 35 | Parking lamp |
| 36 | Run/Crank |
| 43 | Second fuel pump |
| 59 | A/C clutch |
| 64 | Starter Motor (LD & HD DSL) / Cool Fan Clutch (HD Gas) |
| 70 | Starter Pinion (LD) / Starter Motor (HD Gas) |
| 77 | Powertrain |
2021
Instrument Panel Fuse Block (Left)
| № | Usage |
|---|---|
| F1 | Rear heated seats left/right |
| F3 | - |
| F4 | - |
| F5 | Spare / MFEG |
| F6 | Heated and ventilated seats left/right |
| F8 | - |
| F9 | Passive entry passive start / Spare |
| F10 | - |
| F11 | - |
| F12 | Passenger power seat |
| F13 | Export power take off / Special equipment option 1 |
| F14 | - |
| F15 | - |
| F16 | AMP |
| F17 | - |
| F18 | - |
| F20 | Endgate |
| F22 | Rear sliding window |
| F23 | - |
| F24 | - |
| F25 | - |
| F26 | - |
| F27 | - |
| CB1 | - |
| K1 | Rear sliding window open |
| K2 | Rear sliding window close |
| K3 | MFEG major 1 |
| K4 | MFEG minor 1 |
| K5 | MFEG minor 2 |
| K6 | MFEG major 2 |
| K7 | - |
| K8 | - |
Instrument Panel Fuse Block (Right)
| № | Usage |
|---|---|
| F1 | Right doors |
| F2 | Left doors |
| F3 | Universal garage door opener |
| F4 | - |
| F5 | - |
| F6 | Front blower |
| F8 | Lumbar switch |
| F10 | Body control module 6 / Body control module 7 |
| F11 | Seat/Column lock module |
| F12 | Body control module 3 / Body control module 5 |
| F14 | Mirrors/Windows module |
| F17 | Steering wheel controls |
| F18 | Video processing module / Obstacle detection |
| F19 | DUS |
| F20 | Ventilated seats |
| F21 | NOT R/C |
| F22 | Heated steering wheel |
| F23 | MISC R/C |
| F24 | Instrument panel cluster ignition / Overhead |
| F25 | Heating, ventilation, and air conditioning ignition/ Heating, ventilation, and air conditioning auxiliary |
| F26 | USB ports / Special equipment option retained accessory power |
| F27 | Accessory power outlet / retained accessory power |
| F28 | Accessory power outlet / Battery |
| F30 | Sensing and diagnostic module / Parking brake |
| F31 | Body control module 4 |
| F32 | Special equipment option / Data link connection |
| F33 | Body control module 8 |
| F34 | Cargo lamp |
| F40 | CGM |
| F41 | Infotainment 1 |
| F42 | TCP |
| F43 | - |
| F44 | Active vibration management |
| F45 | Body control module 2 |
| F46 | Heating, ventilation, and air conditioning / Battery 1 |
| F47 | Instrument panel duster / Battery |
| F48 | Transmission control module |
| F49 | Body control module 1 |
| F50 | - |
| F51 | Battery 1 |
| F52 | Battery 2 |
| F53 | - |
| F54 | Sunroof |
| F55 | Driver power seat |
| F56 | DC DC TRANS 1 |
| F57 | DC DC TRANS 2 |
| F58 | Infotainment 2 |
| CB1 | Accessory power outlet 2 |
| CB2 | Accessory power outlet 1 / Cigarette Lighter |
| CB3 | Accessory power outlet 3 |
| CB4 | Accessory power outlet 4 |
| K1 | Run/Crank |
| K2 | Retained accessory power / Accessory 1 |
| K4 | Retained accessory power / Accessory 2 |
| K5 | - |
Engine Compartment Fuse Block
| № | Usage |
|---|---|
| 1 | High-beam left |
| 2 | High-beam right |
| 3 | Headlamp left |
| 4 | Headlamp right |
| 6 | - |
| 7 | - |
| 8 | Fog lamp |
| 9 | - |
| 10 | - |
| 11 | Police upfitter |
| 12 | - |
| 13 | Washer front |
| 14 | Washer rear |
| 15 | - |
| 16 | - |
| 17 | IECL1 |
| 19 | DC/AC inverter |
| 20 | IECR 2 (LD) / EBCM2 (HD) |
| 21 | - |
| 22 | IECL2 |
| 24 | EBCM 1 |
| 25 | - |
| 26 | - |
| 27 | Horn |
| 28 | - |
| 29 | - |
| 30 | - |
| 31 | - |
| 32 | Rear window defogger |
| 33 | Heated mirror |
| 34 | Parking lamp left |
| 37 | - |
| 38 | - |
| 39 | - |
| 40 | Misc ignition |
| 41 | Trailer parking lamp |
| 42 | Park lamp right |
| 44 | - |
| 45 | - |
| 46 | Engine control module ignition |
| 47 | Transmission control module ignition |
| 48 | - |
| 49 | Transmission control module |
| 50 | A/C clutch |
| 51 | Transfer case control module |
| 52 | Front wiper |
| 53 | Center high-mounted stop lamp |
| 54 | Trailer reverse lamp |
| 55 | Trailer back-up lamp |
| 56 | SADS |
| 57 | TTPM / SBZA |
| 58 | Starter motor (LD & HD DSL) |
| 60 | Active fuel management 1 |
| 61 | VES |
| 62 | Integrated chassis control module / CVS |
| 63 | Trailer battery |
| 65 | Auxiliary underhood electrical center |
| 66 | Cooling fan motor left |
| 67 | Active fuel management 2 |
| 68 | - |
| 69 | Starter Pinion (LD) / Starter Motor (HD Gas) |
| 71 | Cooling fan |
| 72 | Cooling fan right / Lower |
| 73 | Trailer stop/turn lamp left |
| 74 | Trailer Interface Module 1 |
| 75 | DEFC |
| 76 | Electric RNG BDS |
| 78 | Engine control module |
| 79 | Auxiliary battery |
| 80 | Cabin cooling pump |
| 81 | Trailer stop/turn lamp right |
| 82 | Trailer Interface Module 2 |
| 83 | FTZM |
| 84 | Trailer brake |
| 85 | ENG |
| 86 | Engine control module |
| 87 | Injector B even |
| 88 | O2 B sensor |
| 89 | O2 A sensor |
| 90 | Injector A odd |
| 91 | Engine control module throttle control |
| 92 | Cool fan clutch / Aeroshutter |
| 5 | Headlamp |
| 18 | DC/AC inverter |
| 23 | Rear window defogger |
| 35 | Parking lamp |
| 36 | Run/Crank |
| 43 | - |
| 59 | A/C clutch |
| 64 | Starter Motor (LD & HD DSL) |
| 70 | Starter Pinion (LD) / Starter Motor (HD Gas) |
| 77 | Powertrain |