Learn about Chevrolet Blazer 2023-2024 fuse box and relay’s locations, functions, and maintenance tips for optimal vehicle electrical system.

The 2023-2024 Chevrolet Blazer is a midsize SUV known for its bold styling and sporty design, catering to drivers looking for both practicality and flair. Available in multiple trims, including the RS and Premier, the Blazer features an athletic stance, sculpted lines, and a spacious cabin. It offers versatile seating, ample cargo space, and a host of tech features, making it ideal for both city driving and weekend adventures.

The Blazer’s electrical system powers key features like the infotainment system, safety aids, and climate control. Its fuse box and relays ensure smooth functionality of these components. The main fuse box is located under the hood, near the engine compartment, while another fuse box is often positioned inside the cabin, typically on the passenger side. Relays, found near these fuse boxes, manage high-power systems, including the ignition and cooling fans. Regular inspection and maintenance of these electrical components are crucial for reliability.

MUST READ: DYI – How to Check Car Fuses?

(2023-2024) Chevrolet Blazer fuse box and relay with Diagram

WARNING

  • Never replace a fuse with one that has a higher amperage rating.
  • A fuse with a too-high amperage could damage the electrical part and cause a fire.
  • On no account should fuses be repaired (e.g. patched up with tin foil or wire) as this may cause serious damage elsewhere in the electrical circuit or cause a fire.
  • If a fuse blows repeatedly, do not keep replacing it. Instead, have the cause for the repeated short circuit or overload tracked and fixed.
  • Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Chevrolet Blazer 2023-2024 fuse assignment

Chevrolet Blazer Year of production: 2023, 2024

Location of Fuse Boxes

Chevrolet Blazer (2023-2024): Passenger compartment fuse panel location

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.
After accessing the fuses, ensure the fuse block cover is reinstalled, if equipped. To reinstall the fuse panel door, push the door back into its original location.

Chevrolet Blazer (2023-2024): Engine compartment fuse box 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 (2023-2024): Rear compartment fuse box location

Rear Compartment Fuse Block:
The rear compartment fuse block is behind a trim cover on the driver side of the rear storage compartment. Remove the trim cover to access the fuse block or visit your dealer. The fuse block label is located on the central bin.


Fuse Box Diagrams

2023

Instrument Panel Fuse Block
Chevrolet Blazer (2023): Passenger compartment fuse panel diagram

List of fuses in the Instrument Panel Fuse Block (2023)

Usage
F1Body Control Module 6
F2Diagnostic Link / Central Gateway Module
F3Spare / Electric 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 IEC1 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 (2023): Engine compartment fuse box diagram

List of fuses in the Engine Compartment Fuse Block (2023)

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
F17Daytime Running Lamp Left
F18
F19
F20
F21
F22Electronic Brake Control Module
F23Parking / Trailer Lamps
F24Right Trailer Stoplamp / Turnlamp
F25Spare
F26Daytime Running Lamp Right
F27Left Trailer Stoplamp / Turnlamp
F28
F29
F30Washer Pump
F31
F32
F33
F34Horn
F35
F36
F37
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 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 (2023): Rear compartment fuse box diagram

List of fuses in the Rear Compartment Fuse Block (2023)

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 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

2024

Instrument Panel Fuse Block
Chevrolet Blazer (2024): Passenger compartment fuse panel diagram

List of fuses in the Instrument Panel Fuse Block (2024)

Usage
F1Body Control Module 6
F2Diagnostic Link / Central Gateway Module
F3Spare / Electric 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 IEC1 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 (2024): Engine compartment fuse box diagram

List of fuses in the Engine Compartment Fuse Block (2024)

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
F17Daytime Running Lamp Left
F18
F19
F20
F21
F22Electronic Brake Control Module
F23Parking / Trailer Lamps
F24Right Trailer Stoplamp / Turnlamp
F25Spare
F26Daytime Running Lamp Right
F27Left Trailer Stoplamp / Turnlamp
F28
F29
F30Washer Pump
F31
F32
F33
F34Horn
F35
F36
F37
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 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 – Coil Odd
F63O2 Sensor 2 / Miscellaneous Powertrain
F64Engine Control Module – Coil 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 (2024): Rear compartment fuse box diagram

List of fuses in the Rear Compartment Fuse Block (2024)

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 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

Conclusion

The Chevrolet Blazer 2023-2024 combines sporty style and functionality. Proper care of its fuse box and relays is essential to maintain the reliability of its advanced features.

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