Page Contents:
In this article, you will find information about the fuses of the Chevrolet Express (models 2018, 2019, 2020, 2021, 2022, 2023, and 2024), 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 Express
To check a fuse, look at the band inside the fuse. If the band is broken or melted, replace the fuse. Be sure to replace a bad fuse with a fuse of the identical size and rating.
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
Floor Console Fuse Block:
The floor console fuse block is under the driver seat.
Engine Compartment Fuse Block:
The fuse block is in the engine compartment on the driver side of the vehicle. Auxiliary Fuse Block is near the fuse block in the engine compartment.
Fuse Box Diagrams
2018
Floor Console Fuse Block
| № | Usage |
|---|---|
| F1 | - |
| F2 | Steering wheel sensor |
| F3 | Auxiliary parking lamps |
| F4 | Front parking lamps |
| F5 | Trailer parking lamps |
| F6 | Upfitter / Parking lamps |
| F7 | Right rear parking lamp |
| F8 | Left rear parking lamp |
| F9 | Exterior rear mirror switch / Door lock-unlock control upfitter |
| F10 | Airbag / Automatic occupant sensing |
| F11 | - / OnStar |
| F12 | ECM batt |
| F13 | HVAC2 |
| F14 | HVAC1 |
| F15 | - |
| F16 | Upfitter 1 |
| F17 | Exterior rearview heated mirrors |
| F18 | Rear window defogger |
| F19 | Compass |
| F20 | Radio / Chime / SiriusXM satellite radio |
| F21 | Remote function actuator / Tire pressure monitor |
| F22 | Ignition switch / Discrete logic ignition sensor |
| F23 | Instrument cluster |
| F24 | - |
| F25 | HVAC control |
| F26 | Auxiliary / Trailer reverse lamps |
| F27 | Reverse lamps |
| F28 | Upfitter2 / Reading lamps |
| F29 | Rear blower |
| F30 | Upfitter / Courtesy lamps |
| F31 | Front door lock |
| F32 | Rear door lock |
| F33 | Cargo door unlock |
| F34 | Passenger door unlock |
| F35 | Rear passenger door unlock |
| F36 | Driver door lock |
| F37 | Empty |
| F38 | - |
| K1 | Run |
| K2 | - |
| K3 | Parking lamps |
| K4 | Upfitter 2 |
| K5 | Rear defogger |
| K6 | Retained accessory power |
| CB1 | Power seats |
| CB2 | Power windows |
Engine Compartment Fuse Block
| № | Usage |
|---|---|
| 1 | ABS motor |
| 2 | ABS module |
| 3 | Right trailer stoplamp/Turnlamp |
| 4 | - |
| 5 | - |
| 6 | Fuel system control module / lgnition |
| 7 | Body control module 5 |
| 8 | Body control module 7 |
| 9 | Body control module 4 |
| 10 | Instrument cluster |
| 11 | Trailer wiring |
| 12 | - |
| 13 | Interior rear vision camera module |
| 14 | Windshield washer |
| 16 | Horn |
| 17 | Transmission |
| 18 | A/C |
| 19 | Engine control module battery |
| 20 | Cutaway / Left stoplamp/Turnlamp |
| 21 | Left trailer stoplamp/Turnlamp |
| 22 | Cutaway / Right stoplamp/Turnlamp |
| 23 | - |
| 24 | Fuel pump |
| 25 | Auxiliary power outlet |
| 26 | Body control module 3 |
| 27 | Special equipment option |
| 28 | Airbag |
| 29 | Steering wheel sensor |
| 30 | Engine control module Ignition |
| 31 | Transmission control module Ignition |
| 32 | Transmission control module 1 battery / Engine control module battery power (gas 6 cyl) |
| 33 | Rear parking aid module |
| 34 | - |
| 35 | - |
| 36 | Fuel system control module battery |
| 41 | Transmission control 2 module battery power |
| 42 | Trailer wiring |
| 43 | - |
| 44 | Starter solenoid |
| 45 | Engine control module / Powertrain |
| 46 | AC DC inverter |
| 47 | Cooling fan - low |
| 51 | Left high-beam headlamp |
| 52 | Right high-beam headlamp |
| 53 | Left low-beam headlamp |
| 54 | Right low-beam headlamp |
| 55 | Wipers |
| 56 | Canister vent solenoid |
| 58 | Body control module 2 |
| 59 | Body control module 1 |
| 61 | Engine oil solenoid |
| 62 | O2 sensor 2 |
| 63 | - |
| 64 | Mass air flow / Canister vent |
| 65 | Ignition / lnjectors - odd |
| 66 | Daytime running lamps 2 |
| 67 | Daytime running lamps 1 |
| 68 | Auxiliary stoplamps |
| 69 | External power for trailer |
| 70 | Upfitter stoplamps |
| 71 | Fuel heater / Flex fuel sensor |
| 72 | Body control module 6 |
| 73 | Lighter / Data link connector |
| 74 | Front blower |
| 75 | V6 fuel injectors |
| 76 | - |
| 77 | O2 sensor 1 |
| 78 | Engine control module / Powertrain |
| 79 | Ignition / lnjectors - even |
| 15 | Run/Crank |
| 37 | - |
| 38 | Fuel pump |
| 39 | Crank |
| 40 | A/C compressor |
| 48 | - |
| 49 | Powertrain |
| 50 | - |
| 57 | Cooling fan - low |
| 60 | Cooling fan control |
| 1 | Starter motor |
Auxiliary Fuse Block
| № | Usage |
|---|---|
| MR-1 | Upfitter 1 |
| MR-2 | Upfitter 2 |
| MR-3 | Upfitter Power Control |
| MR Relay 1 | Upfitter 1 |
| MR Relay 2 | Upfitter 2 |
2019
Floor Console Fuse Block
| № | Usage |
|---|---|
| F1 | - |
| F2 | Steering wheel sensor |
| F3 | Auxiliary parking lamps |
| F4 | Front parking lamps |
| F5 | Trailer parking lamps |
| F6 | Upfitter / Parking lamps |
| F7 | Right rear parking lamp |
| F8 | Left rear parking lamp |
| F9 | Exterior rear mirror switch / Door lock-unlock control upfitter / Front camera module |
| F10 | Airbag / Automatic occupant sensing |
| F11 | - / OnStar |
| F12 | ECM batt V6 gas |
| F13 | HVAC2 |
| F14 | HVAC1 |
| F15 | Reflected LED display |
| F16 | Upfitter aux 1 / Gas ambulance |
| F17 | Heated outside mirrors |
| F18 | Rear window defogger |
| F19 | Compass |
| F20 | Radio / Chime / SiriusXM satellite radio |
| F21 | Remote function actuator / Tire pressure monitor |
| F22 | Ignition switch / Discrete logic ignition sensor |
| F23 | Instrument cluster |
| F24 | - |
| F25 | HVAC control |
| F26 | Auxiliary / Trailer reverse lamps |
| F27 | Reverse tail lamps |
| F28 | Upfitter2 / Reading lamps / Ambulance |
| F29 | Rear blower |
| F30 | Upfitter / Courtesy lamps |
| F31 | Front door lock |
| F32 | Rear door lock |
| F33 | Cargo door unlock |
| F34 | Passenger door unlock |
| F35 | Rear passenger door unlock |
| F36 | Driver door lock |
| F37 | - |
| F38 | - |
| K1 | Run |
| K2 | - |
| K3 | Parking lamps |
| K4 | Upfitter 2 |
| K5 | Rear window defogger |
| K6 | Retained accessory power |
| CB1 | Power seats |
| CB2 | Power windows |
Engine Compartment Fuse Block
| № | Usage |
|---|---|
| 1 | ABS motor |
| 2 | ABS module |
| 3 | Right trailer stoplamp / Turn signal lamp |
| 4 | - |
| 5 | - |
| 6 | Fuel system control module / lgnition |
| 7 | Body control module 5 |
| 8 | Body control module 7 |
| 9 | Body control module 4 |
| 10 | Instrument cluster |
| 11 | Trailer wiring |
| 12 | - |
| 13 | Interior rear vision camera module |
| 14 | Windshield washer |
| 16 | Horn |
| 17 | Transmission |
| 18 | A/C |
| 19 | Engine control module battery |
| 20 | Cutaway / Left stoplamp / Turn signal lamp |
| 21 | Left trailer stoplamp / Turn signal lamp |
| 22 | Cutaway / Right stoplamp / Turn signal lamp |
| 23 | - |
| 24 | Fuel pump |
| 25 | Auxiliary power outlet |
| 26 | Body control module 3 |
| 27 | Special equipment option |
| 28 | Airbag |
| 29 | Steering wheel sensor |
| 30 | Engine control module / lgnition |
| 31 | Transmission control module Ignition |
| 32 | Transmission control module 1 battery |
| 33 | Rear parking aid module |
| 34 | - |
| 35 | - |
| 36 | Fuel system control module battery |
| 41 | Transmission control 2 module battery power |
| 42 | Trailer wiring |
| 43 | - |
| 44 | Starter solenoid |
| 45 | Engine control module / Powertrain |
| 46 | AC DC inverter |
| 47 | - |
| 51 | Left high-beam headlamp |
| 52 | Right high-beam headlamp |
| 53 | Left low-beam headlamp |
| 54 | Right low-beam headlamp |
| 55 | Wipers |
| 56 | Canister vent solenoid |
| 58 | Body control module 2 |
| 59 | Body control module 1 |
| 61 | Engine oil solenoid |
| 62 | O2 sensor 2 |
| 63 | - |
| 64 | Mass airflow / Canister vent |
| 65 | Ignition / lnjectors - odd |
| 66 | Daytime running lamps 2 |
| 67 | Daytime running lamps 1 |
| 68 | Auxiliary stoplamps |
| 69 | External power for trailer |
| 70 | Upfitter stoplamps |
| 71 | Fuel heater / FlexFuel sensor |
| 72 | Body control module 6 |
| 73 | Lighter / Data link connector |
| 74 | Front blower |
| 75 | Engine control module diesel |
| 76 | - |
| 77 | O2 sensor 1 |
| 78 | Engine control module / Powertrain |
| 79 | Ignition / Injectors - even |
| 15 | Run/Crank |
| 37 | - |
| 38 | Fuel pump |
| 39 | Crank |
| 40 | A/C compressor |
| 48 | - |
| 49 | Powertrain |
| 50 | - |
| 57 | - |
| 60 | - |
| 1 | Starter motor |
Auxiliary Fuse Block
| № | Usage |
|---|---|
| MR-1 | Upfitter 1 |
| MR-2 | Upfitter 2 |
| MR-3 | Upfitter Power Control |
| MR Relay 1 | Upfitter 1 |
| MR Relay 2 | Upfitter 2 |
2020
Floor Console Fuse Block
| № | Usage |
|---|---|
| F1 | - |
| F2 | Steering wheel sensor |
| F3 | Auxiliary parking lamps |
| F4 | Front parking lamps |
| F5 | Trailer parking lamps |
| F6 | Upfitter / Parking lamps |
| F7 | Right rear parking lamp |
| F8 | Left rear parking lamp |
| F9 | Exterior rear mirror switch / Door lock-unlock control upfitter / Front camera module |
| F10 | Airbag / Automatic occupant sensing |
| F11 | - / OnStar |
| F12 | ECM batt V6 gas |
| F13 | HVAC2 |
| F14 | HVAC1 |
| F15 | Reflected LED display |
| F16 | Upfitter aux 1 / Gas ambulance |
| F17 | Heated outside mirrors |
| F18 | Rear window defogger |
| F19 | Compass |
| F20 | Radio / Chime / SiriusXM satellite radio |
| F21 | Remote function actuator / Tire pressure monitor |
| F22 | Ignition switch / Discrete logic ignition sensor |
| F23 | Instrument cluster |
| F24 | - |
| F25 | HVAC control |
| F26 | Auxiliary / Trailer reverse lamps |
| F27 | Reverse tail lamps |
| F28 | Upfitter2 / Reading lamps / Ambulance |
| F29 | Rear blower |
| F30 | Upfitter / Courtesy lamps |
| F31 | Front door lock |
| F32 | Rear door lock |
| F33 | Cargo door unlock |
| F34 | Passenger door unlock |
| F35 | Rear passenger door unlock |
| F36 | Driver door lock |
| F37 | - |
| F38 | - |
| K1 | Run |
| K2 | - |
| K3 | Parking lamps |
| K4 | Upfitter 2 |
| K5 | Rear window defogger |
| K6 | Retained accessory power |
| CB1 | Power seats |
| CB2 | Power windows |
Engine Compartment Fuse Block
| № | Usage |
|---|---|
| 1 | ABS motor |
| 2 | ABS module |
| 3 | Right trailer stoplamp / Turn signal lamp |
| 4 | - |
| 5 | - |
| 6 | Fuel system control module / lgnition |
| 7 | Body control module 5 |
| 8 | Body control module 7 |
| 9 | Body control module 4 |
| 10 | Instrument cluster |
| 11 | Trailer wiring |
| 12 | - |
| 13 | Interior rear vision camera module |
| 14 | Windshield washer |
| 16 | Horn |
| 17 | Transmission |
| 18 | A/C |
| 19 | Engine control module battery |
| 20 | Left stop/turn cutaway lamp |
| 21 | Left stop/turn trailer lamp |
| 22 | Right stop/turn cutaway lamp |
| 23 | - |
| 24 | Fuel pump |
| 25 | Auxiliary power outlet |
| 26 | Body control module 3 |
| 27 | Special equipment option |
| 28 | Airbag |
| 29 | Steering wheel sensor |
| 30 | Engine control module / lgnition |
| 31 | Transmission control module Ignition |
| 32 | Transmission control module 1 battery |
| 33 | Rear parking aid module |
| 34 | - |
| 35 | - |
| 36 | Fuel system control module battery |
| 41 | Transmission control module 2, battery signal |
| 42 | Trailer wiring |
| 43 | - |
| 44 | Starter solenoid |
| 45 | Engine control module, powertrain signal 2 |
| 46 | DC-AC inverter |
| 47 | - |
| 51 | Left high-beam headlamp |
| 52 | Right high-beam headlamp |
| 53 | Left low-beam headlamp |
| 54 | Right low-beam headlamp |
| 55 | Wipers |
| 56 | Canister vent solenoid |
| 58 | Body control module 2 |
| 59 | Body control module 1 |
| 61 | Engine oil solenoid |
| 62 | O2 sensor 2 |
| 63 | - |
| 64 | Mass airflow / Canister vent |
| 65 | Ignition coils / injectors - odd |
| 66 | Daytime running lamps 2 |
| 67 | Daytime running lamps 1 |
| 68 | Auxiliary stoplamps |
| 69 | External power for trailer |
| 70 | Upfitter stoplamps |
| 71 | Fuel heater / FlexFuel sensor |
| 72 | Body control module 6 |
| 73 | Lighter / Data link connector |
| 74 | Front blower |
| 75 | Engine control module |
| 76 | - |
| 77 | O2 sensor 1 |
| 78 | Engine control module, powertrain signal 1 |
| 79 | Ignition coils / injectors - even |
| 15 | Run/Crank |
| 37 | - |
| 38 | Fuel pump |
| 39 | Crank |
| 40 | A/C compressor |
| 48 | - |
| 49 | Powertrain |
| 50 | - |
| 57 | - |
| 60 | - |
| 1 | Starter motor |
Auxiliary Fuse Block
| № | Usage |
|---|---|
| MR-1 | Upfitter 1 |
| MR-2 | Upfitter 2 |
| MR-3 | Upfitter Power Control |
| MR Relay 1 | Upfitter 1 |
| MR Relay 2 | Upfitter 2 |
2021
Floor Console Fuse Block
| № | Usage |
|---|---|
| F1 | - |
| F2 | Steering wheel sensor |
| F3 | Auxiliary parking lamps |
| F4 | Front parking lamps |
| F5 | Trailer parking lamps |
| F6 | Upfitter / Parking lamps |
| F7 | Right rear parking lamp |
| F8 | Left rear parking lamp |
| F9 | Exterior rear mirror switch / Door lock-unlock control upfitter / Front camera module |
| F10 | Airbag / Automatic occupant sensing |
| F11 | - / OnStar |
| F12 | - |
| F13 | HVAC2 |
| F14 | HVAC1 |
| F15 | Reflected LED display |
| F16 | Upfitter aux 1 / Gas ambulance |
| F17 | Heated outside mirrors |
| F18 | Rear window defogger |
| F19 | Compass |
| F20 | Radio / Chime / SiriusXM satellite radio |
| F21 | Remote function actuator / Tire pressure monitor |
| F22 | Ignition switch / Discrete logic ignition sensor |
| F23 | Instrument cluster |
| F24 | - |
| F25 | HVAC control |
| F26 | Auxiliary / Trailer reverse lamps |
| F27 | Reverse tail lamps |
| F28 | Upfitter 2 / Reading lamps / Ambulance |
| F29 | Rear blower |
| F30 | Upfitter/Courtesy lamps |
| F31 | Front door lock |
| F32 | Rear door lock |
| F33 | Cargo door unlock |
| F34 | Front passenger door unlock |
| F35 | Rear passenger door unlock |
| F36 | Driver door unlock |
| F37 | - |
| F38 | - |
| K1 | Run |
| K2 | - |
| K3 | Parking lamps |
| K4 | Upfitter 2 |
| K5 | Rear window defogger |
| K6 | Retained accessory power |
| CB1 | Power seats |
| CB2 | Power windows |
Engine Compartment Fuse Block
| № | Usage |
|---|---|
| 1 | ABS motor |
| 2 | ABS module |
| 3 | Right trailer stoplamp / Turn signal lamp |
| 4 | - |
| 5 | - |
| 6 | Fuel system control module / lqnition |
| 7 | Body control module 5 |
| 8 | Body control module 7 |
| 9 | Body control module 4 |
| 10 | Instrument cluster |
| 11 | Trailer wiring |
| 12 | - |
| 13 | Interior rear vision camera module |
| 14 | Windshield washer |
| 16 | Horn |
| 17 | Transmission |
| 18 | A/C |
| 19 | Engine control module battery |
| 20 | Left stop/turn cutaway lamp |
| 21 | Left stop/turn trailer lamp |
| 22 | Right stop/turn cutaway lamp |
| 23 | NOX Sensor (Diesel only) |
| 24 | Fuel pump |
| 25 | Auxiliary power outlet |
| 26 | Body control module 3 |
| 27 | Special equipment option |
| 28 | Airbag |
| 29 | Steering wheel sensor |
| 30 | Engine control module ignition |
| 31 | Transmission control module Ignition |
| 32 | Transmission control module 1 battery |
| 33 | Rear parking aid module |
| 34 | NOX Sensor (Diesel only) |
| 35 | Fuel heater control module (Diesel only) |
| 36 | Fuel system control module battery |
| 41 | Transmission control module 2, battery signal |
| 42 | Trailer wiring |
| 43 | Electro viscous fan clutch (Diesel only) |
| 44 | Starter solenoid |
| 45 | Engine control module, powertrain signal 2 |
| 46 | DC-AC inverter |
| 47 | - |
| 51 | Left high-beam headlamp |
| 52 | Right high-beam headlamp |
| 53 | Left low-beam headlamp |
| 54 | Right low-beam headlamp |
| 55 | Wipers |
| 56 | Canister vent solenoid |
| 58 | Body control module 2 |
| 59 | Body control module 1 |
| 61 | Engine oil solenoid / Crankcase vent heater (Diesel only) |
| 62 | O2 sensor 2 |
| 63 | - |
| 64 | Mass airflow / Canister vent |
| 65 | Ignition coils / Injectors -odd |
| 66 | Daytime running lamps 2 |
| 67 | Daytime running lamps 1 |
| 68 | Auxiliary stoplamps |
| 69 | External power for trailer |
| 70 | Upfitter stoplamps |
| 71 | Fuel heater / FlexFuel sensor |
| 72 | Body control module 6 |
| 73 | Lighter / Data link connector |
| 74 | Front blower |
| 75 | Engine control module |
| 76 | Soot sensors (Diesel only) |
| 77 | O2 sensor 1 |
| 78 | Engine control module / Powertrain signal 1 |
| 79 | Ignition coils / Injectors - even |
| 15 | Run/Crank |
| 37 | NOX Sensor (Diesel only) |
| 38 | Fuel pump |
| 39 | Crank |
| 40 | A/C compressor |
| 48 | Electro viscous fan clutch (Diesel only) |
| 49 | Powertrain |
| 50 | - |
| 57 | - |
| 60 | - |
| 1 | Starter motor |
Auxiliary Fuse Block
| № | Usage |
|---|---|
| MR-1 | Upfitter 1 |
| MR-2 | Upfitter 2 |
| MR-3 | Upfitter Power Control |
| MR Relay 1 | Upfitter 1 |
| MR Relay 2 | Upfitter 2 |
2022
Floor Console Fuse Block
| № | Usage |
|---|---|
| F1 | - |
| F2 | Steering Wheel Sensor |
| F3 | Auxiliary Parking Lamps |
| F4 | Front Parking Lamps |
| F5 | Trailer Parking Lamps |
| F6 | Upfitter / Parking Lamps |
| F7 | Right Rear Parking Lamp |
| F8 | Left Rear Parking Lamp |
| F9 | Outside View Mirror Switch / Front Camera Module |
| F10 | Airbag / Automatic Occupant Sensing |
| F11 | - / OnStar |
| F12 | - |
| F13 | HVAC2 |
| F14 | HVAC1 |
| F15 | Reflected LED Display |
| F16 | Upfitter Aux 1 / Gas Ambulance |
| F17 | Heated Outside Mirrors |
| F18 | Rear Window Defogger |
| F19 | Compass |
| F20 | Radio / Chime / SiriusXM Satellite Radio |
| F21 | Remote Function Actuator / Tire Pressure Monitor |
| F22 | Ignition Switch / Discrete Logic Ignition Sensor / Pass Key 3 |
| F23 | Instrument Cluster |
| F24 | - |
| F25 | HVAC Control |
| F26 | Auxiliary / Trailer Reverse Lamps |
| F27 | Reverse Tail Lamps |
| F28 | Upfitter 2 / Gas Ambulance |
| F29 | Rear Blower |
| F30 | Upfitter / Courtesy Lamps |
| F31 | Front Door Lock |
| F32 | Rear Door Lock |
| F33 | Cargo Door Unlock |
| F34 | Front Passenger Door Unlock |
| F35 | Rear Passenger Door Unlock |
| F36 | Driver Door Unlock |
| F37 | - |
| F38 | - |
| K1 | Run |
| K2 | - |
| K3 | Parking Lamps |
| K4 | Upfitter 2 |
| K5 | Rear Window Defogger |
| K6 | Retained Accessory Power |
| CB1 | Power Seats |
| CB2 | Power Windows |
Engine Compartment Fuse Block
| № | Usage |
|---|---|
| 1 | ABS Motor |
| 2 | ABS Module |
| 3 | Right Trailer Stoplamp / Turn Signal Lamp |
| 4 | - |
| 5 | - |
| 6 | Fuel System Control Module / Ignition |
| 7 | Body Control Module 5 |
| 8 | Body Control Module 7 |
| 9 | Body Control Module 4 |
| 10 | Instrument Cluster |
| 11 | Trailer Wiring |
| 12 | - |
| 13 | Interior Rear Vision Camera Module |
| 14 | Windshield Washer |
| 16 | Horn |
| 17 | Transmission |
| 18 | A/C |
| 19 | Engine Control Module Battery |
| 20 | Left Stop/Turn Cutaway Lamp |
| 21 | Left Stop/Turn Trailer Lamp |
| 22 | Right Stop/Turn Cutaway Lamp |
| 23 | NOX Sensor (Diesel Only) |
| 24 | Fuel Pump |
| 25 | Auxiliary Power Outlet |
| 26 | Body Control Module 3 |
| 27 | Special Equipment Option |
| 28 | Airbag |
| 29 | Steering Wheel Sensor |
| 30 | Engine Control Module Ignition |
| 31 | Transmission Control Module Ignition |
| 32 | Transmission Control Module 1 Battery |
| 33 | Rear Parking Aid Module |
| 34 | NOX Sensor (Diesel Only) |
| 35 | Fuel Heater Control Module (Diesel Only) |
| 36 | Fuel System Control Module Battery |
| 41 | Transmission Control Module 2, Battery Signal |
| 42 | Trailer Wiring |
| 43 | Electro Viscous Fan Clutch (Diesel Only) |
| 44 | Starter Solenoid |
| 45 | Engine Control Module / Powertrain Signal 2 |
| 46 | DC-AC Inverter |
| 47 | Fan Low Speed |
| 51 | Left High-Beam Headlamp |
| 52 | Right High-Beam Headlamp |
| 53 | Left Low-Beam Headlamp |
| 54 | Right Low-Beam Headlamp |
| 55 | Wipers |
| 56 | Canister Vent Solenoid |
| 58 | Body Control Module 2 |
| 59 | Body Control Module 1 |
| 61 | Engine Oil Solenoid / Crankcase Vent Heater (Diesel Only) |
| 62 | O2 Sensor 2 |
| 63 | - |
| 64 | Mass Airflow / Canister Vent |
| 65 | Ignition Coils / lnjectors -Odd |
| 66 | Daytime Running Lamps 2 |
| 67 | Daytime Running Lamps 1 |
| 68 | Auxiliary Stoplamps |
| 69 | External Power for Trailer |
| 70 | Upfitter Stoplamps |
| 71 | Fuel Heater / FlexFuel Sensor |
| 72 | Body Control Module 6 |
| 73 | Lighter / Data Link Connector |
| 74 | Front Blower |
| 75 | Engine Control Module |
| 76 | Soot Sensors (Diesel Only) |
| 77 | O2 Sensor 1 |
| 78 | Engine Control Module / Powertrain Signal 1 |
| 79 | Ignition Coils/lnjectors - Even |
| 15 | Run/Crank |
| 37 | NOX Sensor (Diesel Only) |
| 38 | Fuel Pump |
| 39 | Crank |
| 40 | A/C Compressor |
| 48 | Electro Viscous Fan Clutch (Diesel Only) |
| 49 | Powertrain |
| 50 | - |
| 57 | Fan Low Speed |
| 60 | Fan Control |
Auxiliary Fuse Block
| № | Usage |
|---|---|
| MR-1 | Upfitter 1 |
| MR-2 | Upfitter 2 |
| MR-3 | Upfitter Power Control |
| MR Relay 1 | Upfitter 1 |
| MR Relay 2 | Upfitter 2 |
2023
Floor Console Fuse Block
| № | Usage |
|---|---|
| F1 | - |
| F2 | Steering Wheel Sensor |
| F3 | Auxiliary Parking Lamps |
| F4 | Front Parking Lamps |
| F5 | Trailer Parking Lamps |
| F6 | Upfitter / Parking Lamps |
| F7 | Right Rear Parking Lamp |
| F8 | Left Rear Parking Lamp |
| F9 | Outside View Mirror Switch / Front Camera Module |
| F10 | Airbag / Automatic Occupant Sensing |
| F11 | - / OnStar |
| F12 | - |
| F13 | HVAC2 |
| F14 | HVAC1 |
| FI 5 | Reflected LED Display |
| F16 | Upfitter Aux1 / Gas Ambulance |
| F17 | Heated Outside Mirrors |
| F18 | Rear Window Defogger |
| F19 | Compass |
| F20 | Radio / Chime / SiriusXM Satellite Radio |
| F21 | Remote Function Actuator / Tire Pressure Monitor |
| F22 | Ignition Switch / Discrete Logic Ignition Sensor / Pass Key 3 |
| F23 | Instrument Cluster |
| F24 | - |
| F25 | HVAC Control |
| F26 | Auxiliary / Trailer Reverse Lamps |
| F27 | Reverse Tail Lamps |
| F28 | Upfitter 2 / Gas Ambulance |
| F29 | Rear Blower |
| F30 | Upfitter / Courtesy Lamps |
| F31 | Front Door Lock |
| F32 | Rear Door Lock |
| F33 | Cargo Door Unlock |
| F34 | Front Passenger Door Unlock |
| F35 | Rear Passenger Door Unlock |
| F36 | Driver Door Unlock |
| F37 | - |
| F38 | - |
| K1 | Run |
| K2 | - |
| K3 | Parking Lamps |
| K4 | Upfitter 2 |
| K5 | Rear Window Defogger |
| K6 | Retained Accessory Power |
| CB1 | Power Seats |
| CB2 | Power Windows |
Engine Compartment Fuse Block
| № | Usage |
|---|---|
| 1 | ABS Motor |
| 2 | ABS Module |
| 3 | Right Trailer Stoplamp / Turn Signal Lamp |
| 4 | - |
| 5 | - |
| 6 | Fuel System Control Module / Ignition |
| 7 | Body Control Module 5 |
| 8 | Body Control Module 7 |
| 9 | Body Control Module 4 |
| 10 | Instrument Cluster |
| 11 | Trailer Wiring |
| 12 | - |
| 13 | Interior Rear Vision Camera Module |
| 14 | Windshield Washer |
| 16 | Horn |
| 17 | Transmission |
| 18 | A/C |
| 19 | Engine Control Module Battery |
| 20 | Left Stop/Turn Cutaway Lamp |
| 21 | Left Stop/Turn Trailer Lamp |
| 22 | Right Stop/Turn Cutaway Lamp |
| 23 | - |
| 24 | Fuel Pump |
| 25 | Auxiliary Power Outlet |
| 26 | Body Control Module 3 |
| 27 | Special Equipment Option |
| 28 | Airbag |
| 29 | Steering Wheel Sensor |
| 30 | Engine Control Module Ignition |
| 31 | Transmission Control Module Ignition |
| 32 | Transmission Control Module 1 Battery |
| 33 | Rear Parking Aid Module |
| 34 | - |
| 35 | - |
| 36 | Fuel System Control Module Battery |
| 41 | Transmission Control Module 2 / Battery Power |
| 42 | Trailer Wiring |
| 43 | - |
| 44 | Starter Solenoid |
| 45 | Engine Control Module / Powertrain Signal 2 |
| 46 | DC-AC Inverter |
| 47 | Fan Low Speed |
| 51 | Left High-Beam Headlamp |
| 52 | Right High-Beam Headlamp |
| 53 | Left Low-Beam Headlamp |
| 54 | Right Low-Beam Headlamp |
| 55 | Wipers |
| 56 | Canister Vent Solenoid |
| 58 | Body Control Module 2 |
| 59 | Body Control Module 1 |
| 61 | Engine Oil Solenoid |
| 62 | O2 Sensor 2 |
| 63 | - |
| 64 | Mass Airflow / Canister Vent |
| 65 | Ignition Coils / lnjectors - Odd |
| 66 | Daytime Running Lamps 2 |
| 67 | Daytime Running Lamps 1 |
| 68 | Auxiliary Stoplamps |
| 69 | External Power for Trailer |
| 70 | Upfitter Stoplamps |
| 71 | Fuel Heater / FlexFuel Sensor |
| 72 | Body Control Module 6 |
| 73 | Lighter / Data Link Connector |
| 74 | Front Blower |
| 75 | Engine Control Module |
| 76 | - |
| 77 | O2 Sensor 1 |
| 78 | Engine Control Module / Powertrain Signal 1 |
| 79 | Ignition Coils / lnjectors - Even |
| 15 | Run/Crank |
| 37 | - |
| 38 | Fuel Pump |
| 39 | Crank |
| 40 | A/C Compressor |
| 48 | - |
| 49 | Powertrain |
| 50 | - |
| 57 | - |
| 60 | - |
Auxiliary Fuse Block
| № | Usage |
|---|---|
| MR-1 | Upfitter 1 |
| MR-2 | Upfitter 2 |
| MR-3 | Upfitter Power Control |
| MR Relay 1 | Upfitter 1 |
| MR Relay 2 | Upfitter 2 |
2024
Floor Console Fuse Block
| № | Usage |
|---|---|
| F1 | - |
| F2 | Steering Wheel Sensor |
| F3 | Auxiliary Parking Lamps |
| F4 | Front Parking Lamps |
| F5 | Trailer Parking Lamps |
| F6 | Upfitter / Parking Lamps |
| F7 | Right Rear Parking Lamp |
| F8 | Left Rear Parking Lamp |
| F9 | Outside View Mirror Switch / Front Camera Module |
| F10 | Airbag / Automatic Occupant Sensing |
| F11 | - / OnStar |
| F12 | - |
| F13 | HVAC2 |
| F14 | HVAC1 |
| FI 5 | Reflected LED Display |
| F16 | Upfitter Aux1 / Gas Ambulance |
| F17 | Heated Outside Mirrors |
| F18 | Rear Window Defogger |
| F19 | Compass |
| F20 | Radio / Chime / SiriusXM Satellite Radio |
| F21 | Remote Function Actuator / Tire Pressure Monitor |
| F22 | Ignition Switch / Discrete Logic Ignition Sensor / Pass Key 3 |
| F23 | Instrument Cluster |
| F24 | - |
| F25 | HVAC Control |
| F26 | Auxiliary / Trailer Reverse Lamps |
| F27 | Reverse Tail Lamps |
| F28 | Upfitter 2 / Gas Ambulance |
| F29 | Rear Blower |
| F30 | Upfitter / Courtesy Lamps |
| F31 | Front Door Lock |
| F32 | Rear Door Lock |
| F33 | Cargo Door Unlock |
| F34 | Front Passenger Door Unlock |
| F35 | Rear Passenger Door Unlock |
| F36 | Driver Door Unlock |
| F37 | - |
| F38 | - |
| K1 | Run |
| K2 | - |
| K3 | Parking Lamps |
| K4 | Upfitter 2 |
| K5 | Rear Window Defogger |
| K6 | Retained Accessory Power |
| CB1 | Power Seats |
| CB2 | Power Windows |
Engine Compartment Fuse Block
| № | Usage |
|---|---|
| 1 | ABS Motor |
| 2 | ABS Module |
| 3 | Right Trailer Stoplamp / Turn Signal Lamp |
| 4 | - |
| 5 | - |
| 6 | Fuel System Control Module / Ignition |
| 7 | Body Control Module 5 |
| 8 | Body Control Module 7 |
| 9 | Body Control Module 4 |
| 10 | Instrument Cluster |
| 11 | Trailer Wiring |
| 12 | - |
| 13 | Interior Rear Vision Camera Module |
| 14 | Windshield Washer |
| 16 | Horn |
| 17 | Transmission |
| 18 | A/C |
| 19 | Engine Control Module Battery |
| 20 | Left Stop/Turn Cutaway Lamp |
| 21 | Left Stop/Turn Trailer Lamp |
| 22 | Right Stop/Turn Cutaway Lamp |
| 23 | - |
| 24 | Fuel Pump |
| 25 | Auxiliary Power Outlet |
| 26 | Body Control Module 3 |
| 27 | Special Equipment Option |
| 28 | Airbag |
| 29 | Steering Wheel Sensor |
| 30 | Engine Control Module Ignition |
| 31 | Transmission Control Module Ignition |
| 32 | Transmission Control Module 1 Battery |
| 33 | Rear Parking Aid Module |
| 34 | - |
| 35 | - |
| 36 | Fuel System Control Module Battery |
| 41 | Transmission Control Module 2 / Battery Power |
| 42 | Trailer Wiring |
| 43 | - |
| 44 | Starter Solenoid |
| 45 | Engine Control Module / Powertrain Signal 2 |
| 46 | DC-AC Inverter |
| 47 | Fan Low Speed |
| 51 | Left High-Beam Headlamp |
| 52 | Right High-Beam Headlamp |
| 53 | Left Low-Beam Headlamp |
| 54 | Right Low-Beam Headlamp |
| 55 | Wipers |
| 56 | Canister Vent Solenoid |
| 58 | Body Control Module 2 |
| 59 | Body Control Module 1 |
| 61 | Engine Oil Solenoid |
| 62 | O2 Sensor 2 |
| 63 | - |
| 64 | Mass Airflow / Canister Vent |
| 65 | Ignition Coils / lnjectors -Odd |
| 66 | Daytime Running Lamps 2 |
| 67 | Daytime Running Lamps 1 |
| 68 | Auxiliary Stoplamps |
| 69 | External Power for Trailer |
| 70 | Upfitter Stoplamps |
| 71 | Fuel Heater / FlexFuel Sensor |
| 72 | Body Control Module 6 |
| 73 | Lighter / Data Link Connector |
| 74 | Front Blower |
| 75 | Engine Control Module |
| 76 | - |
| 77 | O2 Sensor 1 |
| 78 | Engine Control Module / Powertrain Signal 1 |
| 79 | Ignition Coils / lnjectors - Even |
| 15 | Run/Crank |
| 37 | - |
| 38 | Fuel Pump |
| 39 | Crank |
| 40 | A/C Compressor |
| 48 | - |
| 49 | Powertrain |
| 50 | - |
| 57 | - |
| 60 | |
Auxiliary Fuse Block
| № | Usage |
|---|---|
| MR-1 | Upfitter 1 |
| MR-2 | Upfitter 2 |
| MR-3 | Upfitter Power Control |
| MR Relay 1 | Upfitter 1 |
| MR Relay 2 | Upfitter 2 |