Buick Envision (2020-2022) fuses and relays

This material discusses in detail the fuse diagrams of the Buick Envision (second generation): 2020, 2021, 2022 release.

Fuse F25 in the interior fuse box is responsible for the front cigarette lighter and power socket.

In the engine compartment


Located on the driver's side, behind the plastic cover. For aceess, squeeze the clips on the plastic cover and lift it straight up.

Diagram
No. Description
Relays
K04 Rear defog
K25 Front wiper control relay
K37 Front wiper speed relay
K64 Starter motor relay
K66 Powertrain relay
K71 Not Used
K73 Air conditioning control relay
K80 Starter pinion
K90 Not Used
K98 Not Used
Fuses
F02 Trailer stop/turn right
F03 Electronic brake control module
F05 Rear defog
F06 Not Used
F07 Trailer stop/turn left
F08 2020-2021: Overhead console module / Universal garage door opener / Rain sensor
F09 Suspension control semi active dampen system module
F10
  • Adaptive forward lighting
  • rear drive control unit
F11 Direct current to direct current converter 1
F12 Power tailgate
F13 Not Used
F14 Canister vent solenoid
F15 Not Used
F16 Front wiper
F17 Passenger power seat
F18 left Motor window lifter
F19 right Motor window lifter
F21 Exterior lighting module 1
F22 Exterior lighting module 3
F23 Exterior lighting module 6
F24 Not Used
F26 Transmission control module direct current converter
F27 Remote function actuator
F28 Not Used
F29 Exterior lighting module 4
F30 Driver memory seat module
F32 Right Headlamp
F33 heated seat (front)
F34 heated seat (rear)
F35 Door panel / Seat position driver and passenger switch
F36 Fuel tank zone control unit
F39 Handsfree closure control unit
F40 Left Headlamp  
F41 Not Used
F44 Rear wiper
F48 Blower motor
F49 Not Used
F50 Not Used
F51 Not Used
F52 Not Used
F54 Not Used
F55 Not Used
F56 Starter motor
F57 Driver power seat / Memory seat module
F58 Rear drive control unit
F59 Not Used
F60 Not Used
F61 Not Used
F62 Not Used
F63 Not Used
F65 Air conditioning control unit
F67 Not Used
F68 Not Used
F69 Not Used
F70 Not Used
F72 Starter pinion
F74 Not Used
F75 Engine control module main
F76 ECM 2
F78 Horn
F79 Washer pump
F81 Not Used
F82 Engine control module battery
F83 Engine control module / Ignition coil
F84 2020-2021: 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 Not Used
F87 Moonroof
F88 Aero shutter
F89 Not Used
F93 Trailer park lamp
F95 Not Used
F96 Not Used
F99 Not Used

In the passenger compartment


Located on the driver's side, behind the instrument panel. To access, remove the panel, starting at the top. When clips are disengaged, the tabs along the bottom of the door can be disengaged from the instrument panel to remove the door.

Diagram
No. Description Amps
Relays
K01 Retained accessory power accessory
K02 Run/crank relay
K03 Not Used
K04 Not Used
K05 Not Used
Fuses
F1 Direct current to direct current converter 2 (DC-DC) 40
F2 BCM 4 30
F3 Not Used
F4 Not Used
F5 BCM 2 25
F6 BCM 3 20
F7 Not Used
F8 Exterior lighting module 5 20
F9 Not Used
F10 Steering column lock 5
F11 BCM 1 10
F12 Not Used
F13 Not Used
F14 Not Used
F15 Auxiliary 12V power outlet rear cargo / Rear Cigarette Lighter Fuse 15
F16 Not Used
F17 Exterior lighting module 7 20
F18 Uplevel tail lamp 10
F19 2020-2021: Steering column lock assembly 10
2022: Overhead Console Module/ Universal Garage Door Opener/Rain Sensor/Electronic Toll Collector
F20 Sensing diagnostic module/Automatic occupant sensing/ Data link connection/ Wireless charger 10
F21 2020-2021: Central gateway module / Telematics control platform module 5
2022: Central Gateway Module / OnStar System
F22 External object calculating module/ Long range radar/ Park assist/front camera module/ Side blind zone alert 10
F23 Video processing module 10
F24 Not Used
F25 AC 12V power outlet / Auxiliary USB / Buick Envision Cigar Lighter Fuse 10
F26 Not Used
F27 Audio Amplifier 30
F28 2020-2021: Jumper 60
2022: Heated Steering Wheel Module/ Exterior Lighting Module Battery 2/ Direct Current/ AC Inverter
F29 Instrument duster/ Heads up display/ Air quality ionizer module/ Center stack display/ Heating ventilation air conditioning display 10
F30 Not Used
F31 2022: Run/Crank / Auxiliary Power Module / Battery System Manager / Motor Control Unit
F32 Run 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 10
F33 Not Used  
F34 Run 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 10
F35 Run crank for engine control module 15
F36 Electric park brake switch/ Shifter interface board 10
F37 Radio/Center stack module/ Auxiliary jack 15
F38 Not Used
F39 Steering wheel clock spring 2
F40 Exterior lighting module 2 20
F41 Heated steering wheel module 7,5
F42 Direct current to alternate current inverter module 20
CB1 Not Used
CB2 Auxiliary power outlet console 15
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