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.
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.
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.
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.
Fuse Box Diagrams
2019
Instrument Panel Fuse Block
List of fuses in the Instrument Panel Fuse Block (2019)
№
Usage
F1
Body control module 6
F2
Diagnostic link / Central gateway module
F3
Electric steering column lock
F4
-
F5
-
F6
Heating, ventilation, and air conditioning
F7
Body control module 3
F8
-
F9
Right front heated seat
F10
Airbag / Seatbelt
F11
-
F12
Amplifier / Noise control module
F13
Body control module 7
F14
Left front heated seat
F15
-
F16
Sunroof
F17
-
F18
Instrument panel cluster
F19
Body control module 1
F20
Rear seat entertainment
F21
Body control module 4
F22
Infotainment USB data / Aux jack
F23
Body control module 2
F24
USB charger / Wireless charging
F25
Park assist
F26
CIM
F27
-
F28
Heating, ventilation, and air conditioning / Information communication system display
F29
Radio
F30
Steering wheel adjustment controls
F31
Front blower
F32
DC AC inverter
F33
Driver power seat
F34
Passenger power seat
F35
Battery IEC 1 feed
F36
Electric power steering
F37
Rear seat entertainment / USB charge / Wireless charging module / Auxiliary power outlet / Lighter
F38
Body control module 8
F39
-
Circuit Breakers
F40
-
F41
-
F42
Auxiliary power outlet / Lighter
Engine Compartment Fuse Block
List of fuses in the Engine Compartment Fuse Block (2019)
№
Usage
F1
Antilock brake system pump
F2
Starter 1
F3
DC DC transformer 1
F4
-
F5
DC DC transformer 2
F6
-
F7
Electronic brake control module / Electric brake booster
F8
Starter 3
F9
-
F10
-
F11
-
F12
Front wiper
F13
-
F14
-
F15
Rear wiper
F16
-
F17
-
F18
-
F19
-
F20
-
F21
-
F22
Electronic brake control module
F23
Parking / Trailer lamps
F24
Right trailer stoplamp / Turnlamp
F25
Steering column lock
F26
-
F27
Left trailer stoplamp / Turnlamp
F28
-
F29
-
F30
Washer pump
F31
Spare / Right low-beam headlamp
F32
Left low-beam headlamp
F33
High-beam headlamp shutter / Fog lamps
F34
Horn
F35
-
F36
Right low-beam / Left high-beam headlamp
F37
Spare / Right high-beam headlamp
F38
Automatic headlamp leveling motor
F39
Transmission control module
F40
Left rear bus electrical center / DC DC ignition
F41
Instrument cluster
F42
Heating, ventilation, and air conditioning / Central gateway module run/crank
F43
Reflective light alert display
F44
Electronic brake control module / Electric brake booster / Run/crank
F45
-
F46
-
F47
-
F48
-
F49
Interior rearview mirror
F50
Fuel system control module / Fuel tank zone module run/crank
F51
Heated steering wheel
F52
Air conditioning clutch
F53
-
F54
Coolant pump
F55
-
F56
-
F57
Engine control module/lgnition
F58
Transmission control module/ Ignition
F59
Engine control module battery
F60
-
F61
O2 sensor 1 / Aeroshutter / Mass air flow sensor
F62
Engine control module-odd
F63
O2 sensor 2
F64
Engine control module-even
F65
Engine control module powertrain 1
F66
Engine control module powertrain 2
F67
Engine control module powertrain 3
F68
F69
-
F70
F71
-
F72
-
F73
-
F74
F75
-
F76
-
F77
-
Relays
K1
Starter 1
K2
Run/Crank
K3
Starter 3
K4
-
K5
-
K6
Coolant pump
K7
Engine control module
K8
Air conditioning
K9
-
K10
-
Rear Compartment Fuse Block
List of fuses in the Rear Compartment Fuse Block (2019)
№
Usage
F1
-
F2
Trailer battery
F3
-
F4
Rear blower
F5
Rear drive control 1
F6
-
F7
Right window
F8
Rear window defogger
F9
Left window
F10
-
F11
Trailer reverse
F12
-
F13
-
F14
-
F15
-
F16
-
F17
-
F18
-
F19
-
F20
Glove box door / Trailer stoplamp
F21
-
F22
-
F23
-
F24
-
F25
-
F26
Trailer brake
F27
Driver ventilated seat / Lumbar
F28
Passive entry / Passive start
F29
-
F30
Canister vent
F31
-
F32
Heated mirrors
F33
-
F34
Liftgate module
F35
Fuel system control module / Fuel tank zone module
F36
Passenger ventilated seat / Lumbar
F37
-
F38
Window module
F39
Rear closure
F40
Memory seat module
F41
Automatic occupancy sensor
F42
-
F43
-
F44
-
F45
Liftgate motor
F46
Rear heated seats
F47
-
F48
-
F49
-
F50
-
F51
-
F52
Rear drive control 2 / Semi-active dampening system module
F53
Video
F54
External object calculating / Side blind zone alert
F55
-
F56
Universal remote / Rain sensor
F57
Alarm overhead console / Theft deterrent
Circuit Breakers
CB1
-
CB2
-
CB3
Rear auxiliary power outlet
Relays
K1
-
K2
-
2020
Instrument Panel Fuse Block
List of fuses in the Instrument Panel Fuse Block (2020)
№
Usage
F1
Body control module 6
F2
Diagnostic link / Central gateway module
F3
Electric steering column lock
F4
-
F5
-
F6
Heating, ventilation, and air conditioning
F7
Body control module 3
F8
-
F9
Right front heated seat
F10
Airbag / Seatbelt
F11
-
F12
Amplifier / Noise control module
F13
Body control module 7
F14
Left front heated seat
F15
-
F16
Sunroof
F17
-
F18
Instrument cluster
F19
Body control module 1
F20
Rear seat entertainment
F21
Body control module 4
F22
Infotainment USB data / Aux jack
F23
Body control module 2
F24
USB charger / Wireless charging
F25
Park assist
F26
Communications integration module
F27
-
F28
Heating, ventilation, and air conditioning / Information communication system display
F29
Radio
F30
Steering wheel adjustment controls
F31
Electric brake control module electric brake booster
F32
DC AC inverter
F33
Driver power seat
F34
Passenger power seat
F35
Battery IEC 1 feed
F36
Electric power steering
F37
Rear seat entertainment / USB charge / Wireless charging module / Auxiliary power outlet / Lighter
F38
Body control module 8
F39
-
Circuit Breakers
F40
-
F41
-
F42
Auxiliary power outlet/Lighter
Engine Compartment Fuse Block
List of fuses in the Engine Compartment Fuse Block (2020)
№
Usage
F1
Antilock brake system pump
F2
Starter 1
F3
DC DC transformer 1
F4
-
F5
DC DC transformer 2
F6
-
F7
Front blower
F8
Starter 3
F9
-
F10
-
F11
-
F12
Front wiper
F13
Starter 2
F14
-
F15
Rear wiper
F16
-
F17
-
F18
-
F19
-
F20
-
F21
-
F22
Electronic brake control module
F23
Parking / Trailer lamps
F24
Right trailer stoplamp / Turnlamp
F25
Steering column lock
F26
-
F27
Left trailer stoplamp / Turnlamp
F28
-
F29
-
F30
Washer pump
F31
Spare / Right low-beam headlamp
F32
Left low-beam headlamp
F33
High-beam headlamp shutter / Fog lamps
F34
Horn
F35
-
F36
Right low-beam / Left high-beam headlamp
F37
Spare / Right high-beam headlamp
F38
Automatic headlamp leveling motor
F39
Transmission control module
F40
Left rear bus electrical center / DC DC ignition
F41
Instrument cluster
F42
Heating, ventilation, and air conditioning / Central gateway module run/crank
F43
Reflective light alert display
F44
Electronic brake control module / Electric brake booster / Run/crank
F45
-
F46
-
F47
-
F48
-
F49
Interior rearview mirror
F50
Fuel system control module / Fuel tank zone module run/crank
F51
Heated steering wheel
F52
Air conditioning clutch
F53
-
F54
Coolant pump
F55
-
F56
-
F57
Engine control module / lgnition
F58
Transmission control module / Ignition
F59
Engine control module battery
F60
-
F61
O2 sensor 1 / Aeroshutter / Mass air flow sensor
F62
Engine control module-odd
F63
O2 sensor 2
F64
Engine control module-even
F65
Engine control module powertrain 1
F66
Engine control module powertrain 2
F67
Engine control module powertrain 3
F68
-
F69
-
F70
-
F71
-
F72
-
F73
-
F74
-
F75
-
F76
-
F77
-
Relays
K1
Starter 1
K2
Run/Crank
K3
Starter 3
K4
-
K5
-
K6
Coolant pump
K7
Engine control module
K8
Air conditioning
K9
-
K10
Starter 2
Rear Compartment Fuse Block
List of fuses in the Rear Compartment Fuse Block (2020)
№
Usage
F1
-
F2
Trailer battery
F3
-
F4
Rear blower
F5
Rear drive control 1
F6
-
F7
Right window
F8
Rear window defogger
F9
Left window
F10
-
F11
Trailer reverse
F12
-
F13
-
F14
-
F15
-
F16
-
F17
-
F18
-
F19
-
F20
Glove box door / Trailer stoplamp
F21
-
F22
-
F23
-
F24
-
F25
-
F26
Trailer brake
F27
Driver ventilated seat / Lumbar
F28
Passive entry / Passive start
F29
-
F30
Canister vent
F31
-
F32
Heated mirrors
F33
-
F34
Liftgate module
F35
Fuel system control module / Fuel tank zone module
F36
Passenger ventilated seat / Lumbar
F37
-
F38
Window module
F39
Rear closure
F40
Memory seat module
F41
Automatic occupancy sensor
F42
-
F43
-
F44
-
F45
Liftgate motor
F46
Rear heated seats
F47
-
F48
-
F49
-
F50
-
F51
-
F52
Rear drive control 2 / Semi-active dampening system module
F53
Video
F54
External object calculating / Side blind zone alert
F55
-
F56
Universal remote / Rain sensor
F57
Alarm overhead console / Theft deterrent
Circuit Breakers
CB1
-
CB2
-
CB3
Rear auxiliary power outlet
Relays
K1
-
K2
-
2021
Instrument Panel Fuse Block
List of fuses in the Instrument Panel Fuse Block (2021)
№
Usage
F1
Body control module 6
F2
Diagnostic link / Central gateway module
F3
Electric steering column lock
F4
-
F5
-
F6
Heating, ventilation, and air conditioning
F7
Body control module 3
F8
-
F9
Right front heated seat
F10
Airbag / Seatbelt
F11
-
F12
Amplifier / Noise control module
F13
Body control module 7
F14
Left front heated seat
F15
-
F16
Sunroof
F17
-
F18
Instrument cluster
F19
Body control module 1
F20
Rear seat entertainment
F21
Body control module 4
F22
Infotainment USB data / Aux jack
F23
Body control module 2
F24
USB charger / Wireless charging
F25
Park assist
F26
Communications integration module
F27
-
F28
Heating, ventilation, and air conditioning / Information communication system display
F29
Radio
F30
Steering wheel adjustment controls
F31
Electric brake control module electric brake booster
F32
DC AC inverter
F33
Driver power seat
F34
Passenger power seat
F35
Battery IEC 1 feed
F36
Electric power steering
F37
Rear seat entertainment / USB charge / Wireless charging module / Auxiliary power outlet / Lighter
F38
Body control module 8
F39
-
Circuit Breakers / Minifuse
F40
-
F41
-
F42
Auxiliary power outlet (CB) / Lighter (minifuse)
Engine Compartment Fuse Block
List of fuses in the Engine Compartment Fuse Block (2021)
№
Usage
F1
Antilock brake system pump
F2
Starter 1
F3
DC DC transformer 1
F4
-
F5
DC DC transformer 2
F6
-
F7
Front blower
F8
Starter 3
F9
-
F10
-
F11
-
F12
Front wiper
F13
Starter 2
F14
-
F15
Rear wiper
F16
-
F17
-
F18
-
F19
-
F20
-
F21
-
F22
Electronic brake control module
F23
Parking / Trailer lamps
F24
Right trailer stoplamp / Turnlamp
F25
Steering column lock
F26
-
F27
Left trailer stoplamp / Turnlamp
F28
-
F29
-
F30
Washer pump
F31
Spare / Right low-beam headlamp
F32
Left low-beam headlamp
F33
High-beam headlamp shutter / Fog lamps
F34
Horn
F35
-
F36
Right low-beam / Left high-beam headlamp
F37
Spare / Right high-beam headlamp
F38
Automatic headlamp leveling motor
F39
Transmission control module
F40
Left rear bus electrical center / DC DC ignition
F41
Instrument cluster
F42
Heating, ventilation, and air conditioning / Central gateway module run/crank
F43
Reflective light alert display
F44
Electronic brake control module / Electric brake booster / Run/crank
F45
-
F46
-
F47
-
F48
-
F49
Interior rearview mirror
F50
Fuel system control module / Fuel tank zone module run/crank
F51
Heated steering wheel
F52
Air conditioning clutch
F53
Coolant pump
F54
-
F55
-
F56
-
F57
Engine control module / Ignition
F58
Transmission control module / lgnition
F59
Engine control module battery
F60
-
F61
O2 sensor 1 / Aeroshutter / Mass air flow sensor
F62
Engine control module-odd
F63
O2 sensor 2
F64
Engine control module-even
F65
Engine control module powertrain 1
F66
Engine control module powertrain 2
F67
Engine control module powertrain 3
F68
-
F69
-
F70
-
F71
-
F72
-
F73
-
F74
-
F75
-
F76
-
F77
-
Relays
K1
Starter 1
K2
Run/Crank
K3
Starter 3
K4
-
K5
-
K6
-
K7
Engine control module
K8
Air conditioning
K9
-
K10
Starter 2
Rear Compartment Fuse Block
List of fuses in the Rear Compartment Fuse Block (2021)
№
Usage
F1
-
F2
Trailer battery
F3
-
F4
Rear blower
F5
Rear drive control 1
F6
-
F7
Right window
F8
Rear window defogger
F9
Left window
F10
-
F11
Trailer reverse
F12
-
F13
-
F14
-
F15
-
F16
-
F17
-
F18
-
F19
-
F20
Glove box door / Trailer stoplamp
F21
-
F22
-
F23
-
F24
-
F25
-
F26
Trailer brake
F27
Driver ventilated seat / Lumbar
F28
Passive entry / Passive start
F29
-
F30
Canister vent
F31
-
F32
Heated mirrors
F33
-
F34
Liftgate module
F35
Fuel system control module / Fuel tank zone module
F36
Passenger ventilated seat / Lumbar
F37
-
F38
Window module
F39
Rear closure
F40
Memory seat module
F41
Automatic occupancy sensor
F42
-
F43
-
F44
-
F45
Liftgate motor
F46
Rear heated seats
F47
-
F48
-
F49
-
F50
-
F51
-
F52
Rear drive control 2 / Semi-active dampening system module
F53
Video
F54
External object calculating / Side blind zone alert
F55
-
F56
Universal remote / Rain sensor
F57
Alarm overhead console / Theft deterrent
Circuit Breakers
CB1
-
CB2
-
CB3
Rear auxiliary power outlet
Relays
K1
-
K2
-
2022
Instrument Panel Fuse Block
List of fuses in the Instrument Panel Fuse Block (2022)
№
Usage
F1
Body Control Module 6
F2
Diagnostic Link / Central Gateway Module
F3
Electric Steering Column Lock
F4
-
F5
-
F6
Heating, Ventilation, and Air Conditioning
F7
Body Control Module 3
F8
-
F9
Right Front Heated Seat
F10
Airbag / Seatbelt
F11
-
F12
Amplifier / Noise Control Module
F13
Body Control Module 7
F14
Left Front Heated Seat
F15
-
F16
Sunroof
F17
-
F18
Instrument Cluster
F19
Body Control Module 1
F20
Rear Seat Entertainment
F21
Body Control Module 4
F22
Infotainment USB Data / Aux Jack
F23
Body Control Module 2
F24
USB Charger / Wireless Charging
F25
Park Assist
F26
Communications Integration Module
F27
-
F28
Heating, Ventilation, and Air Conditioning/ Information Communication System Display
F29
Radio
F30
Steering Wheel Adjustment Controls
F31
Electric Brake Control Module Electric Brake Booster
F32
DC AC Inverter
F33
Driver Power Seat
F34
Passenger Power Seat
F35
Battery IEC 1 Feed
F36
Electric Power Steering
F37
Rear Seat Entertainment / USB Charge / Wireless Charging Module / Auxiliary Power Outlet / Lighter
F38
Body Control Module 8
F39
-
Circuit Breakers / Minifuse
F40
-
F41
-
F42
Auxiliary Power Outlet (CB) / Lighter (Minifuse)
Engine Compartment Fuse Block
List of fuses in the Engine Compartment Fuse Block (2022)
№
Usage
F1
Antilock Brake System Pump
F2
Starter 1
F3
DC DC Transformer 1
F4
-
F5
DC DC Transformer 2
F6
-
F7
Front Blower
F8
Starter 3
F9
-
F10
-
F11
-
F12
Front Wiper
F13
Starter 2
F14
-
F15
Rear Wiper
F16
-
F17
-
F18
-
F19
-
F20
-
F21
-
F22
Electronic Brake Control Module
F23
Parking / Trailer Lamps
F24
Right Trailer Stoplamp / Turnlamp
F25
Spare
F26
-
F27
Left Trailer Stoplamp / Turnlamp
F28
-
F29
-
F30
Washer Pump
F31
Spare
F32
Left Low-Beam Headlamp
F33
High-Beam Headlamp Shutter
F34
Horn
F35
-
F36
Right Low-Beam
F37
Spare / Right High-Beam Headlamp
F38
Spare
F39
Transmission Control Module
F40
Left Rear Bus Electrical Center / DC DC Ignition
F41
Instrument Cluster
F42
Heating, Ventilation, and Air Conditioning / Central Gateway Module Run/Crank
F43
Reflective Light Alert Display
F44
Electronic Brake Control Module / Electric Brake Booster / Run/Crank
F45
-
F46
-
F47
-
F48
-
F49
Interior Rearview Mirror
F50
Fuel System Control Module / Fuel Tank Zone Module Run/Crank
F51
Heated Steering Wheel
F52
Air Conditioning Clutch
F53
Coolant Pump
F54
-
F55
-
F56
-
F57
Engine Control Module / Ignition
F58
Transmission Control Module / lgnition
F59
Engine Control Module Battery
F60
-
F61
O2 Sensor 1 / Aeroshutter / Mass Air Flow Sensor
F62
Engine Control Module-Odd
F63
O2 Sensor 2
F64
Engine Control Module-Even
F65
Engine Control Module Powertrain 1
F66
Engine Control Module Powertrain 2
F67
Engine Control Module Powertrain 3
F68
-
F69
-
F70
-
F71
-
F72
-
F73
-
F74
-
F75
-
F76
-
F77
-
Relays
K1
Starter 1
K2
Run/Crank
KB
Starter 3
K4
-
K5
-
K6
-
K7
Engine Control Module
K8
Air Conditioning
K9
-
K10
Starter 2
Rear Compartment Fuse Block
List of fuses in the Rear Compartment Fuse Block (2022)
№
Usage
F1
-
F2
Trailer Battery
F3
-
F4
Spare / Rear Blower
F5
Rear Drive Control 1
F6
-
F7
Right Window
F8
Rear Window Defogger
F9
Left Window
F10
-
F11
Trailer Reverse
F12
-
F13
-
F14
-
F15
-
F16
-
F17
-
F18
-
F19
-
F20
Glove Box Door / Trailer Stoplamp
F21
-
F22
-
F23
-
F24
-
F25
-
F26
Trailer Brake
F27
Driver Ventilated Seat / Lumbar
F28
Passive Entry / Passive Start
F29
-
F30
Canister Vent
F31
-
F32
Heated Mirrors
F33
-
F34
Liftgate Module
F35
Fuel System Control Module / Fuel Tank Zone Module
F36
Passenger Ventilated Seat / Lumbar
F37
-
F38
Window Module
F39
Rear Closure
F40
Memory Seat Module
F41
Automatic Occupancy Sensor
F42
-
F43
-
F44
-
F45
Liftgate Motor
F46
Rear Heated Seats
F47
-
F48
-
F49
-
F50
-
F51
-
F52
Rear Drive Control 2 / Semi-active Dampening System Module
F53
Video
F54
External Object Calculating / Side Blind Zone Alert