Fuse Box Diagrams Chevrolet Blazer (2019-2022)

In this article, you will find information about the fuses of the Chevrolet Blazer (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.

Chevrolet Blazer (2019-2022)

Checking and Replacing Fuses in Chevy Blazer

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. 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.

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:
The instrument panel fuse block is inside the center console on the passenger side of the vehicle. Remove the fuse access door by inserting a coin or tool into the slot of the access door.Chevrolet Blazer (2019-2022): Passenger compartment fuse panel location

Engine Compartment Fuse Block:
The underhood fuse block is in the engine compartment, on the driver side of the vehicle. To remove the fuse block cover, press the clips on the cover and lift it straight up.Chevrolet Blazer (2019-2022): Engine compartment fuse box location

Caution!

Do not pull the engine compartment fuse block lever, since it is intended only for service purposes. If pulled, vehicle malfunction may occur.

Rear Compartment Fuse Block:
The rear compartment fuse block is behind a trim panel on the driver side of the rear storage compartment. The trim panel is removed by prying along the top edge of the trim panel at two notched locations. Remove the trim panel to access the fuse block. The fuse block label is on the back of the access door in the driver side rear trim panel.Chevrolet Blazer (2019-2022): Rear compartment fuse box location


Fuse Box Diagrams

2019

Instrument Panel Fuse Block

Chevrolet Blazer (2019): Passenger compartment fuse panel diagram

List of fuses in the Instrument Panel Fuse Block (2019)
Usage
F1Body control module 6
F2Diagnostic link / Central gateway module
F3Electric steering column lock
F4-
F5-
F6Heating, ventilation, and air conditioning
F7Body control module 3
F8-
F9Right front heated seat
F10Airbag / Seatbelt
F11-
F12Amplifier / Noise control module
F13Body control module 7
F14Left front heated seat
F15-
F16Sunroof
F17-
F18Instrument panel cluster
F19Body control module 1
F20Rear seat entertainment
F21Body control module 4
F22Infotainment USB data / Aux jack
F23Body control module 2
F24USB charger / Wireless charging
F25Park assist
F26CIM
F27-
F28Heating, ventilation, and air conditioning / Information communication system display
F29Radio
F30Steering wheel adjustment controls
F31Front blower
F32DC AC inverter
F33Driver power seat
F34Passenger power seat
F35Battery IEC 1 feed
F36Electric power steering
F37Rear seat entertainment / USB charge / Wireless charging module / Auxiliary power outlet / Lighter
F38Body control module 8
F39-
Circuit Breakers
F40-
F41-
F42Auxiliary power outlet / Lighter
Engine Compartment Fuse Block

Chevrolet Blazer (2019): Engine compartment fuse box diagram

List of fuses in the Engine Compartment Fuse Block (2019)
Usage
F1Antilock brake system pump
F2Starter 1
F3DC DC transformer 1
F4-
F5DC DC transformer 2
F6-
F7Electronic brake control module / Electric brake booster
F8Starter 3
F9-
F10-
F11-
F12Front wiper
F13-
F14-
F15Rear wiper
F16-
F17-
F18-
F19-
F20-
F21-
F22Electronic brake control module
F23Parking / Trailer lamps
F24Right trailer stoplamp / Turnlamp
F25Steering column lock
F26-
F27Left trailer stoplamp / Turnlamp
F28-
F29-
F30Washer pump
F31Spare / Right low-beam headlamp
F32Left low-beam headlamp
F33High-beam headlamp shutter / Fog lamps
F34Horn
F35-
F36Right low-beam / Left high-beam headlamp
F37Spare / Right high-beam headlamp
F38Automatic headlamp leveling motor
F39Transmission control module
F40Left rear bus electrical center / DC DC ignition
F41Instrument cluster
F42Heating, ventilation, and air conditioning / Central gateway module run/crank
F43Reflective light alert display
F44Electronic brake control module / Electric brake booster / Run/crank
F45-
F46-
F47-
F48-
F49Interior rearview mirror
F50Fuel system control module / Fuel tank zone module run/crank
F51Heated steering wheel
F52Air conditioning clutch
F53-
F54Coolant pump
F55-
F56-
F57Engine control module/lgnition
F58Transmission control module/ Ignition
F59Engine control module battery
F60-
F61O2 sensor 1 / Aeroshutter / Mass air flow sensor
F62Engine control module-odd
F63O2 sensor 2
F64Engine control module-even
F65Engine control module powertrain 1
F66Engine control module powertrain 2
F67Engine control module powertrain 3
F68
F69-
F70
F71-
F72-
F73-
F74
F75-
F76-
F77-
Relays
K1Starter 1
K2Run/Crank
K3Starter 3
K4-
K5-
K6Coolant pump
K7Engine control module
K8Air conditioning
K9-
K10-
Rear Compartment Fuse Block

Chevrolet Blazer (2019): Rear compartment fuse box diagram

List of fuses in the Rear Compartment Fuse Block (2019)
Usage
F1-
F2Trailer battery
F3-
F4Rear blower
F5Rear drive control 1
F6-
F7Right window
F8Rear window defogger
F9Left window
F10-
F11Trailer reverse
F12-
F13-
F14-
F15-
F16-
F17-
F18-
F19-
F20Glove box door / Trailer stoplamp
F21-
F22-
F23-
F24-
F25-
F26Trailer brake
F27Driver ventilated seat / Lumbar
F28Passive entry / Passive start
F29-
F30Canister vent
F31-
F32Heated mirrors
F33-
F34Liftgate module
F35Fuel system control module / Fuel tank zone module
F36Passenger ventilated seat / Lumbar
F37-
F38Window module
F39Rear closure
F40Memory seat module
F41Automatic occupancy sensor
F42-
F43-
F44-
F45Liftgate motor
F46Rear heated seats
F47-
F48-
F49-
F50-
F51-
F52Rear drive control 2 / Semi-active dampening system module
F53Video
F54External object calculating / Side blind zone alert
F55-
F56Universal remote / Rain sensor
F57Alarm overhead console / Theft deterrent
Circuit Breakers
CB1-
CB2-
CB3Rear auxiliary power outlet
Relays
K1-
K2-

2020

Instrument Panel Fuse Block

Chevrolet Blazer (2020): Passenger compartment fuse panel diagram

List of fuses in the Instrument Panel Fuse Block (2020)
Usage
F1Body control module 6
F2Diagnostic link / Central gateway module
F3Electric steering column lock
F4-
F5-
F6Heating, ventilation, and air conditioning
F7Body control module 3
F8-
F9Right front heated seat
F10Airbag / Seatbelt
F11-
F12Amplifier / Noise control module
F13Body control module 7
F14Left front heated seat
F15-
F16Sunroof
F17-
F18Instrument cluster
F19Body control module 1
F20Rear seat entertainment
F21Body control module 4
F22Infotainment USB data / Aux jack
F23Body control module 2
F24USB charger / Wireless charging
F25Park assist
F26Communications integration module
F27-
F28Heating, ventilation, and air conditioning / Information communication system display
F29Radio
F30Steering wheel adjustment controls
F31Electric brake control module electric brake booster
F32DC AC inverter
F33Driver power seat
F34Passenger power seat
F35Battery IEC 1 feed
F36Electric power steering
F37Rear seat entertainment / USB charge / Wireless charging module / Auxiliary power outlet / Lighter
F38Body control module 8
F39-
Circuit Breakers
F40-
F41-
F42Auxiliary power outlet/Lighter
Engine Compartment Fuse Block

Chevrolet Blazer (2020): Engine compartment fuse box diagram

List of fuses in the Engine Compartment Fuse Block (2020)
Usage
F1Antilock brake system pump
F2Starter 1
F3DC DC transformer 1
F4-
F5DC DC transformer 2
F6-
F7Front blower
F8Starter 3
F9-
F10-
F11-
F12Front wiper
F13Starter 2
F14-
F15Rear wiper
F16-
F17-
F18-
F19-
F20-
F21-
F22Electronic brake control module
F23Parking / Trailer lamps
F24Right trailer stoplamp / Turnlamp
F25Steering column lock
F26-
F27Left trailer stoplamp / Turnlamp
F28-
F29-
F30Washer pump
F31Spare / Right low-beam headlamp
F32Left low-beam headlamp
F33High-beam headlamp shutter / Fog lamps
F34Horn
F35-
F36Right low-beam / Left high-beam headlamp
F37Spare / Right high-beam headlamp
F38Automatic headlamp leveling motor
F39Transmission control module
F40Left rear bus electrical center / DC DC ignition
F41Instrument cluster
F42Heating, ventilation, and air conditioning / Central gateway module run/crank
F43Reflective light alert display
F44Electronic brake control module / Electric brake booster / Run/crank
F45-
F46-
F47-
F48-
F49Interior rearview mirror
F50Fuel system control module / Fuel tank zone module run/crank
F51Heated steering wheel
F52Air conditioning clutch
F53-
F54Coolant pump
F55-
F56-
F57Engine control module / lgnition
F58Transmission control module / Ignition
F59Engine control module battery
F60-
F61O2 sensor 1 / Aeroshutter / Mass air flow sensor
F62Engine control module-odd
F63O2 sensor 2
F64Engine control module-even
F65Engine control module powertrain 1
F66Engine control module powertrain 2
F67Engine control module powertrain 3
F68-
F69-
F70-
F71-
F72-
F73-
F74-
F75-
F76-
F77-
Relays
K1Starter 1
K2Run/Crank
K3Starter 3
K4-
K5-
K6Coolant pump
K7Engine control module
K8Air conditioning
K9-
K10Starter 2
Rear Compartment Fuse Block

Chevrolet Blazer (2020): Rear compartment fuse box diagram

List of fuses in the Rear Compartment Fuse Block (2020)
Usage
F1-
F2Trailer battery
F3-
F4Rear blower
F5Rear drive control 1
F6-
F7Right window
F8Rear window defogger
F9Left window
F10-
F11Trailer reverse
F12-
F13-
F14-
F15-
F16-
F17-
F18-
F19-
F20Glove box door / Trailer stoplamp
F21-
F22-
F23-
F24-
F25-
F26Trailer brake
F27Driver ventilated seat / Lumbar
F28Passive entry / Passive start
F29-
F30Canister vent
F31-
F32Heated mirrors
F33-
F34Liftgate module
F35Fuel system control module / Fuel tank zone module
F36Passenger ventilated seat / Lumbar
F37-
F38Window module
F39Rear closure
F40Memory seat module
F41Automatic occupancy sensor
F42-
F43-
F44-
F45Liftgate motor
F46Rear heated seats
F47-
F48-
F49-
F50-
F51-
F52Rear drive control 2 / Semi-active dampening system module
F53Video
F54External object calculating / Side blind zone alert
F55-
F56Universal remote / Rain sensor
F57Alarm overhead console / Theft deterrent
Circuit Breakers
CB1-
CB2-
CB3Rear auxiliary power outlet
Relays
K1-
K2-

2021

Instrument Panel Fuse Block

Chevrolet Blazer (2021): Passenger compartment fuse panel diagram

List of fuses in the Instrument Panel Fuse Block (2021)
Usage
F1Body control module 6
F2Diagnostic link / Central gateway module
F3Electric steering column lock
F4-
F5-
F6Heating, ventilation, and air conditioning
F7Body control module 3
F8-
F9Right front heated seat
F10Airbag / Seatbelt
F11-
F12Amplifier / Noise control module
F13Body control module 7
F14Left front heated seat
F15-
F16Sunroof
F17-
F18Instrument cluster
F19Body control module 1
F20Rear seat entertainment
F21Body control module 4
F22Infotainment USB data / Aux jack
F23Body control module 2
F24USB charger / Wireless charging
F25Park assist
F26Communications integration module
F27-
F28Heating, ventilation, and air conditioning / Information communication system display
F29Radio
F30Steering wheel adjustment controls
F31Electric brake control module electric brake booster
F32DC AC inverter
F33Driver power seat
F34Passenger power seat
F35Battery IEC 1 feed
F36Electric power steering
F37Rear seat entertainment / USB charge / Wireless charging module / Auxiliary power outlet / Lighter
F38Body control module 8
F39-
Circuit Breakers / Minifuse
F40-
F41-
F42Auxiliary power outlet (CB) / Lighter (minifuse)
Engine Compartment Fuse Block

Chevrolet Blazer (2021): Engine compartment fuse box diagram

List of fuses in the Engine Compartment Fuse Block (2021)
Usage
F1Antilock brake system pump
F2Starter 1
F3DC DC transformer 1
F4-
F5DC DC transformer 2
F6-
F7Front blower
F8Starter 3
F9-
F10-
F11-
F12Front wiper
F13Starter 2
F14-
F15Rear wiper
F16-
F17-
F18-
F19-
F20-
F21-
F22Electronic brake control module
F23Parking / Trailer lamps
F24Right trailer stoplamp / Turnlamp
F25Steering column lock
F26-
F27Left trailer stoplamp / Turnlamp
F28-
F29-
F30Washer pump
F31Spare / Right low-beam headlamp
F32Left low-beam headlamp
F33High-beam headlamp shutter / Fog lamps
F34Horn
F35-
F36Right low-beam / Left high-beam headlamp
F37Spare / Right high-beam headlamp
F38Automatic headlamp leveling motor
F39Transmission control module
F40Left rear bus electrical center / DC DC ignition
F41Instrument cluster
F42Heating, ventilation, and air conditioning / Central gateway module run/crank
F43Reflective light alert display
F44Electronic brake control module / Electric brake booster / Run/crank
F45-
F46-
F47-
F48-
F49Interior rearview mirror
F50Fuel system control module / Fuel tank zone module run/crank
F51Heated steering wheel
F52Air conditioning clutch
F53Coolant pump
F54-
F55-
F56-
F57Engine control module / Ignition
F58Transmission control module / lgnition
F59Engine control module battery
F60-
F61O2 sensor 1 / Aeroshutter / Mass air flow sensor
F62Engine control module-odd
F63O2 sensor 2
F64Engine control module-even
F65Engine control module powertrain 1
F66Engine control module powertrain 2
F67Engine control module powertrain 3
F68-
F69-
F70-
F71-
F72-
F73-
F74-
F75-
F76-
F77-
Relays
K1Starter 1
K2Run/Crank
K3Starter 3
K4-
K5-
K6-
K7Engine control module
K8Air conditioning
K9-
K10Starter 2
Rear Compartment Fuse Block

Chevrolet Blazer (2021): Rear compartment fuse box diagram

List of fuses in the Rear Compartment Fuse Block (2021)
Usage
F1-
F2Trailer battery
F3-
F4Rear blower
F5Rear drive control 1
F6-
F7Right window
F8Rear window defogger
F9Left window
F10-
F11Trailer reverse
F12-
F13-
F14-
F15-
F16-
F17-
F18-
F19-
F20Glove box door / Trailer stoplamp
F21-
F22-
F23-
F24-
F25-
F26Trailer brake
F27Driver ventilated seat / Lumbar
F28Passive entry / Passive start
F29-
F30Canister vent
F31-
F32Heated mirrors
F33-
F34Liftgate module
F35Fuel system control module / Fuel tank zone module
F36Passenger ventilated seat / Lumbar
F37-
F38Window module
F39Rear closure
F40Memory seat module
F41Automatic occupancy sensor
F42-
F43-
F44-
F45Liftgate motor
F46Rear heated seats
F47-
F48-
F49-
F50-
F51-
F52Rear drive control 2 / Semi-active dampening system module
F53Video
F54External object calculating / Side blind zone alert
F55-
F56Universal remote / Rain sensor
F57Alarm overhead console / Theft deterrent
Circuit Breakers
CB1-
CB2-
CB3Rear auxiliary power outlet
Relays
K1-
K2-

2022

Instrument Panel Fuse Block

Chevrolet Blazer (2022): Passenger compartment fuse panel diagram

List of fuses in the Instrument Panel Fuse Block (2022)
Usage
F1Body Control Module 6
F2Diagnostic Link / Central Gateway Module
F3Electric Steering Column Lock
F4-
F5-
F6Heating, Ventilation, and Air Conditioning
F7Body Control Module 3
F8-
F9Right Front Heated Seat
F10Airbag / Seatbelt
F11-
F12Amplifier / Noise Control Module
F13Body Control Module 7
F14Left Front Heated Seat
F15-
F16Sunroof
F17-
F18Instrument Cluster
F19Body Control Module 1
F20Rear Seat Entertainment
F21Body Control Module 4
F22Infotainment USB Data / Aux Jack
F23Body Control Module 2
F24USB Charger / Wireless Charging
F25Park Assist
F26Communications Integration Module
F27-
F28Heating, Ventilation, and Air Conditioning/ Information Communication System Display
F29Radio
F30Steering Wheel Adjustment Controls
F31Electric Brake Control Module Electric Brake Booster
F32DC AC Inverter
F33Driver Power Seat
F34Passenger Power Seat
F35Battery IEC 1 Feed
F36Electric Power Steering
F37Rear Seat Entertainment / USB Charge / Wireless Charging Module / Auxiliary Power Outlet / Lighter
F38Body Control Module 8
F39-
Circuit Breakers / Minifuse
F40-
F41-
F42Auxiliary Power Outlet (CB) / Lighter (Minifuse)
Engine Compartment Fuse Block

Chevrolet Blazer (2022): Engine compartment fuse box diagram

List of fuses in the Engine Compartment Fuse Block (2022)
Usage
F1Antilock Brake System Pump
F2Starter 1
F3DC DC Transformer 1
F4-
F5DC DC Transformer 2
F6-
F7Front Blower
F8Starter 3
F9-
F10-
F11-
F12Front Wiper
F13Starter 2
F14-
F15Rear Wiper
F16-
F17-
F18-
F19-
F20-
F21-
F22Electronic Brake Control Module
F23Parking / Trailer Lamps
F24Right Trailer Stoplamp / Turnlamp
F25Spare
F26-
F27Left Trailer Stoplamp / Turnlamp
F28-
F29-
F30Washer Pump
F31Spare
F32Left Low-Beam Headlamp
F33High-Beam Headlamp Shutter
F34Horn
F35-
F36Right Low-Beam
F37Spare / Right High-Beam Headlamp
F38Spare
F39Transmission Control Module
F40Left Rear Bus Electrical Center / DC DC Ignition
F41Instrument Cluster
F42Heating, Ventilation, and Air Conditioning / Central Gateway Module Run/Crank
F43Reflective Light Alert Display
F44Electronic Brake Control Module / Electric Brake Booster / Run/Crank
F45-
F46-
F47-
F48-
F49Interior Rearview Mirror
F50Fuel System Control Module / Fuel Tank Zone Module Run/Crank
F51Heated Steering Wheel
F52Air Conditioning Clutch
F53Coolant Pump
F54-
F55-
F56-
F57Engine Control Module / Ignition
F58Transmission Control Module / lgnition
F59Engine Control Module Battery
F60-
F61O2 Sensor 1 / Aeroshutter / Mass Air Flow Sensor
F62Engine Control Module-Odd
F63O2 Sensor 2
F64Engine Control Module-Even
F65Engine Control Module Powertrain 1
F66Engine Control Module Powertrain 2
F67Engine Control Module Powertrain 3
F68-
F69-
F70-
F71-
F72-
F73-
F74-
F75-
F76-
F77-
Relays
K1Starter 1
K2Run/Crank
KBStarter 3
K4-
K5-
K6-
K7Engine Control Module
K8Air Conditioning
K9-
K10Starter 2
Rear Compartment Fuse Block

Chevrolet Blazer (2022): Rear compartment fuse box diagram

List of fuses in the Rear Compartment Fuse Block (2022)
Usage
F1-
F2Trailer Battery
F3-
F4Spare / Rear Blower
F5Rear Drive Control 1
F6-
F7Right Window
F8Rear Window Defogger
F9Left Window
F10-
F11Trailer Reverse
F12-
F13-
F14-
F15-
F16-
F17-
F18-
F19-
F20Glove Box Door / Trailer Stoplamp
F21-
F22-
F23-
F24-
F25-
F26Trailer Brake
F27Driver Ventilated Seat / Lumbar
F28Passive Entry / Passive Start
F29-
F30Canister Vent
F31-
F32Heated Mirrors
F33-
F34Liftgate Module
F35Fuel System Control Module / Fuel Tank Zone Module
F36Passenger Ventilated Seat / Lumbar
F37-
F38Window Module
F39Rear Closure
F40Memory Seat Module
F41Automatic Occupancy Sensor
F42-
F43-
F44-
F45Liftgate Motor
F46Rear Heated Seats
F47-
F48-
F49-
F50-
F51-
F52Rear Drive Control 2 / Semi-active Dampening System Module
F53Video
F54External Object Calculating / Side Blind Zone Alert
F55-
F56Universal Remote / Rain Sensor
F57Alarm Overhead Console / Theft Deterrent
Circuit Breakers
CB1-
CB2-
CB3Rear Auxiliary Power Outlet
Relays
K1-
K2-