Locate the fuse box and relay diagrams for the Buick Envision 2021-2023, with clear locations and diagrams. Ensure reliable operation of essential electrical features.

The Buick Envision 2021-2023 showcases Buick’s dedication to combining luxury, technology, and performance in the compact SUV segment. Its advanced electrical system includes essential components such as the fuse box and relays.

The fuse box in the 2021-2023 Buick Envision houses fuses designed to protect electrical circuits from overloads and short circuits, ensuring the safety of critical components like headlights, taillights, and power windows. Relays, serving as electrically controlled switches, manage the flow of electricity to systems such as the starter motor, fuel pump, and cooling fans, ensuring efficient and reliable operation.

Additional sophisticated electrical components in the Buick Envision of this era include advanced infotainment systems, climate control features, power-adjustable seats, and advanced driver assistance systems (ADAS). These features rely on a robust electrical infrastructure to enhance comfort, convenience, and safety for occupants.

Understanding the layout and function of the fuse box and relays is crucial for maintaining and troubleshooting the 2021-2023 Buick Envision’s electrical systems. Regular inspection and maintenance of these components help ensure the vehicle’s reliability and performance, maintaining its reputation as a luxurious and dependable SUV in Buick’s lineup.

(2021-2023) Buick Envision 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.

Buick Envision 2021-2023 fuse assignment

Year of production: 2021, 2022, 2023

Passenger Compartment

The location of the fuses in the passenger compartment: Buick Envision (2021, 2022)
The location of the fuses in the passenger compartment: Buick Envision (2021, 2022)

The instrument panel fuse block is on the driver side of the instrument panel, between the steering wheel and the door. To access the fuses, remove the panel, starting at the top. Once clips are disengaged, the tabs along the bottom of the door can be disengaged from the instrument panel to remove the door.

Engine Compartment

The location of the fuses in the engine compartment: Buick Envision (2021, 2022)
The location of the fuses in the engine compartment: Buick Envision (2021, 2022)

To remove the fuse block cover, squeeze the clips on the cover and lift it straight up.

Fuse Box Diagrams

Instrument Panel Fuse Box Diagram

instrument panel fuse box diagram buick envision 2021 2022
instrument panel fuse box diagram buick envision 2021 2022

Assignment of the fuses in the Instrument Panel Fuse Box

AmpsUsage
F140ADirect current to direct current converter 2 (DC-DC)
F230ABody control module 4
F3
F4
F525ABody control module 2
F620ABody control module 3
F7
F820AExterior lighting module 5
F9
F105ASteering column lock
F1110ABody control module 1
F12
F13
F14
F1515AAuxiliary power outlet rear cargo
F16
F1720AExterior lighting module 7
F1810AUplevel tail lamp
F1910A2021: Steering column lock assembly
2022: Overhead Console Module/ Universal Garage Door Opener/Rain Sensor/Electronic Toll Collector
F2010ASensing diagnostic module/Automatic occupant sensing/ Data link connection/ Wireless charger
F215A2021: Central gateway module/ Telematics control platform module
2022: Central Gateway Module/ OnStar
F2210AExternal object calculating module/ Long range radar/ Park assist/front camera module/ Side blind zone alert
F2310AVideo processing module
F24
F2510AAC power outlet/ Auxiliary USB
F26
F2730AAmplifier
F2860A2021: Jumper
2022: Heated Steering Wheel Module/ Exterior Lighting Module Battery 2/ Direct Current/ AC Inverter
F2910AInstrument duster/ Heads up display/ Air quality ionizer module/ Center stack display/ Heating ventilation air conditioning display
F30
F312022: Run/Crank Auxiliary Power Module/ Battery System Manager/ Motor Control Unit
F3210ARun crank for misc. 3 humidity sensor/ Exterior lighting module/ Electronic brake control module/ Air quality sensor exterior/ Headlamp manual leveling left Right/ Inside rear view mirror/ lnterior particulate matter sensor/ Seat fan control cushion and back driver co driver
F33
F3410ARun crank for misc. 1 & 2 shifter interface board module/ Instrument panel cluster/ Transmission control module/ Sensing & diagnostic module/Headlamp manual leveling switch/Reflective light auxiliary display
F3515ARun crank for engine control module
F3610AElectric park brake switch/ Shifter interface board
F3715ARadio/Center stack module/ Auxiliary jack
F38
F392ASteering wheel clock spring
F4020AExterior lighting module 2
F417.5AHeated steering wheel module
F4220ADirect current to alternate current inverter module
CB1
CB215AAuxiliary power outlet console
Relays
K01Retained accessory power accessory
K02Run/crank
K03
K04
K05

Engine Compartment Fuse Box Diagram

Under-hood fuse box diagram: Buick Envision (2021, 2022)
Under-hood fuse box diagram: Buick Envision (2021, 2022)

Assignment of the fuses in the Engine Compartment Fuse Box

Usage
F02Trailer stop/turn right
F03Electronic brake control module
F05Rear defog
F06
F07Trailer stop/turn left
F082021: Overhead console module/ Universal garage door opener/ Rain sensor
F09Suspension control semi active dampen system module
F10Adaptive forward lighting/rear drive control module
F11Direct current to direct current converter 1
F12Power tailgate
F13
F14Canister vent solenoid
F15
F16Front wiper
F17Passenger power seat
F18Motor window lifter left
F19Motor window lifter right
F21Exterior lighting module 1
F22Exterior lighting module 3
F23Exterior lighting module 6
F24
F26Transmission control module direct current converter
F27Remote function actuator
F28
F29Exterior lighting module 4
F30Memory seat module driver
F32Headlamp right
F33Front heated seat
F34Rear heated seat
F35Door panel / Seat position driver and passenger switch
F36Fuel tank zone module
F39Handsfree closure module
F40Headlamp left
F41
F44Rear wiper
F48Blower motor
F49
F50
F51
F52
F54
F55
F56Starter motor
F57Driver power seat / Memory seat module
F58Rear drive control module
F59
F60
F61
F62
F63
F65Air conditioning control
F67
F68
F69
F70
F72Starter pinion
F74
F75Engine control module main
F76Engine control module 2
F78Horn
F79Washer pump
F81
F82Engine control module battery
F83Engine control module/ Ignition coil
F842021: Off engine 1/off engine 2
2022: Mass Airflow/ Oxygen/ Inlet Air Temperature/ Throttle Inlet Absolute Pressure and Humidity/ Oxygen Heated Sensor/Block Coolant Valve/ Evaporative Emission Purge Pump/ Wide Range Air Fuel Oxygen Sensor/Canister Purge, Turbo Bypass, Step Cam Intake, Step Cam Exhaust, Engine Oil Control Solenoids
F86
F87Sunroof
F88Aero shutter
F89
F93Trailer park lamp
F95
F96
F99
Relays
K04Rear defog
K25Front wiper control
K37Front wiper speed
K64Starter motor
K66Powertrain
K71
K73Air conditioning control
K80Starter pinion
K90
K98

2022-2023

Engine Compartment Fuse Block
Buick Envision (2022-2023): Engine compartment fuse box diagram

List of fuses in the Engine Compartment Fuse Block (2022-2023)

Usage
F02TRLR ST/TRN RT – Trailer Stop/Turn Lamp Right
F03EBCM – Electronic Brake Control Module
F05Rear Defog
F06
F07TRLR ST/TRIM LT – Trailer Stop/Turn Lamp Left
F08
F09SADS – Suspension Control Semi Active Damper System Module
F10AFS/RDCM – Adaptive Front Lighting System / Rear Drive Control Module
F11DC DC CNV1 – Direct Current to Direct Current Converter 1
F12PWR T/GATE – Power Tailgate
F13
F14CNSTR VENT SOL – Canister Vent Solenoid
F15
F16FRT/WPR – Front Wiper
F17PASS PWR/SEAT – Passenger Power Seat
F18DRVR PWR WNDW – Driver Power Window
F19PASS PWR WNDW – Passenger Power Window
F21ELM 1 – Exterior Lighting Module 1
F22ELM 3 – Exterior Lighting Module 3
F23ELM 6 – Exterior Lighting Module 6
F24
F26TCM – Transmission Control Module
F27RFA – Remote Function Actuator
F28
F29ELM 4 – Exterior Lighting Module 4
F30MSM DRVR – Driver Memory Seat Module
F32HDLP RT – Right Headlamp
F33FRT HTD/SEAT – Front Heated Seats
F34REAR HTD/SEAT – Rear Heated Seats
F35DR SW/ST POS DRVR/ PASS SW – Door Switch Panel / Seat Position Driver and Passenger Switch
F36FTZM – Fuel Tank Zone Module
F39HANDSFREE CLOSURE MDL – Handsfree Closure Module
F40HDLP LT – Left Headlamp
F41SPARE
F44REAR/WPR – Rear Wiper
F48BLWR MTR – Blower Motor
F49
F50SPARE
F51SPARE
F52
F54SPARE
F55SPARE
F56STRTR MTR – Starter Motor
F57DRVR PWR SEAT/MSM – Driver Power Seat/ Memory Seat Module
F58RDCM – Rear Drive Control Module
F59
F60
F61SPARE
F62SPARE
F63SPARE
F65A/C CNTRL – Air Conditioning Control
F67SPARE
F68SPARE
F69
F70
F72STRTR PINION – Starter Pinion
F74
F75ECM IGN1 – Engine Control Module Ignition 1
F76ECM IGN 2 – Engine Control Module Ignition 2
F78Horn
F79WASH PUMP – Washer Pump
F81
F82ECM BATT – Engine Control Module Battery
F83ECM/IGN COIL – Engine Control Module/lgnition Coils
F84MISC1 – Mass Airflow / Oxygen / lnlet Air Temperature / Throttle Inlet Absolute Pressure and Humidit y /Oxygen Heated Sensor / Block Coolant Valve / Evaporative Emission Purge Pump / Wide Range Air Fuel Oxygen Sensor / Canister Purge, Turbo Bypass, Step Cam Intake, Step Cam Exhaust, Engine Oil Control Solenoids
F86
F87S/ROOF – Sunroof
F88AERO SH – Aeroshutter
F89
F93TRLR PRK LAMP – Trailer Park Lamp
F95
F96
F99
Relays
K4REAR DEFOG – Rear Window Defog
K25FRT/WPR/CNTRL – Front Wiper Control
K37FRT/WPR/SPD – Front Wiper Speed
K64STRTR MTR – Starter Motor
K66PWR/TRN – Power Train
K71
K73A/C Control – Air Conditioning Control
K80STRTR PINION – Starter Pinion
K90
K98
Instrument Panel Fuse Block
Buick Envision (2022-2023): Instrument panel fuse box diagram

List of fuses in the Instrument Panel Fuse Block (2022-2023)

Usage
F1DC-DC CONVERTER 2 – Direct Current to Direct Current Converter 2
F2Body Control Module 4
F3
F4
F5Body Control Module 2
F6Body Control Module 3
F7
F8Exterior Lighting Module 5
F9
F10Steering Column Lock
F11Body Control Module 1
F12
F13
F14
F15APO REAR CARGO – Auxiliary Power Outlet Rear Cargo
F16
F17Exterior Lighting Module 7
F18UPLVL T/LAMP – Uplevel Tail Lamp
F19MISC 5 – Overhead Console Module / Universal Garage Door Opener / Rain Sensor / Electronic Toll Collector
F20SDM/AOS/DLC/ WCM – Sensing Diagnostic Module / Automatic Occupant Sensing / Data Link Connector / Wireless Charger Module
F21CGM/OnStar – Central Gateway Module / OnStar
F22EOCM/LRR/PRK Assist/FCM/SBZA – External Object Calculating Module / Long Range Radar / Park Assist / Front Camera Module / Side Blind Zone Alert
F23Video Processing Module
F24
F25AC POWER OUTLET/USB CHARGE PORT – Alternate Current Power Outlet / USB Charge Port
F26
F27Amplifier
F28MISC 4 – Heated Steering Wheel Module / Exterior Lighting Module Battery 2 / Direct Current / Alternate Current Inverter
F29IPC/HUD/AQI MDL/CS & HVAC DISPLAYS – Instrument Panel Cluster / Heads Up Display / Air Quality Ionizer Module / Center Stack Display / Heating Ventilation and Air Conditioning Display
F30
F31Run/Crank Auxiliary Power Module/Battery System Manager/ Motor Control Unit
F32RUN/CRANK MISC3 – Humidity Sensors / Exterior Lighting Module / Electronic Brake Control Module / Exterior Air Quality Sensor / Manual Headlamp Leveling / lnside Rear View Mirror / Interior Particulate Matter Sensor / Seat Fan Control Cushion and Back Driver and Passenger
F33
F34RUN/CRANK MISC1 & 2 – Shifter Interface Board Module / Instrument Panel Cluster / Transmission Control Module (MISC 1) / Sensing and Diagnostic Module / Headlamp Manual Leveling Switch / Reflective Light Auxiliary Display (MISC 2)
F35RUN CRANK ECM IGN – RUN/CRANK Engine Control Module Ignition
F36EPB SWITCH / SHIFTER INTERFACE BOARD – Electric Park Brake Switch / Shifter Interface Board
F37RADIO/CSM / AUXILIARY JACK – Radio / Center Stack Module / Auxiliary Jack
F38
F39STR/WHL/CNTRLS SWS – SW Controls – Cruise / Fast Idle Switches
F40Exterior Lighting Module 2
F41Heated Steering Wheel Module
F42Direct Current to Alternate Current Inverter Module
CB1
CB2APO CONSOLE – Auxiliary Power Outlet Console
Relays
K01RAP/ACCY – Retained Accessory Power
K02Run/Crank
K03
K04
K05

Conclusion

For owners and enthusiasts of classic Buick Envision models from 2021-2023, understanding the fuse box and relay systems is essential for vehicle maintenance. Regular inspection and maintenance of these components helped ensure the vehicle’s longevity and reliability, preserving its status as a symbol of Buick’s craftsmanship and innovation in the automotive industry during that era.

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