The Buick Envision 2 nd generation was produced in 2021, 2022, 2023, 2024, 2025, 2026. During this time, the model received a facelift. In our post you can find a description of Buick Envision 2G fuses and relays with fuse box diagrams and their locations. Note the fuse responsible for the cigarette lighter.
The purpose of fuses and relays in boxes may differ from that shown and depends on the year of manufacture and the country of delivery.
Engine compartment
Under the hood, the fuse and relay box is located next to the battery under the protective cover.
Diagram
Designation
| F02 | Trailer stop/ turn right |
| F03 | Electronic brake control module |
| F05 | Rear defog |
| F06 | — |
| F07 | Trailer stop/turn left |
| F08 | 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 module |
| F11 | Direct current to direct current converter 1 |
| F12 | Power tailgate |
| F13 | — |
| F14 | Canister vent solenoid |
| F15 | — |
| F16 | Front wiper |
| F17 | Passenger power seat |
| F18 | Motor window lifter left |
| F19 | Motor window lifter right |
| F21 | Exterior lighting module 1 |
| F22 | Exterior lighting module 3 |
| F23 | Exterior lighting module 6 |
| F24 | — |
| F26 | Transmission control module direct current converter |
| F27 | Remote function actuator |
| F28 | — |
| F29 | Exterior lighting module 4 |
| F30 | Memory seat module driver |
| F32 | Headlamp right |
| F33 | Front heated seat |
| F34 | Rear heated seat |
| F35 | Door panel / Seat position driver and passenger switch |
| F36 | Fuel tank zone module |
| F39 | Handsfree closure module |
| F40 | Headlamp left |
| F41 | — |
| F44 | Rear wiper |
| F48 | Blower motor |
| F49 | — |
| F50 | — |
| F51 | — |
| F52 | — |
| F54 | — |
| F55 | — |
| F56 | Starter motor |
| F57 | Driver power seat / Memory seat module |
| F58 | Rear drive control module |
| F59 | — |
| F60 | — |
| F61 | — |
| F62 | — |
| F63 | — |
| F65 | Air conditioning control |
| F67 | — |
| F68 | — |
| F69 | — |
| F70 | — |
| F72 | Starter pinion |
| F74 | — |
| F75 | Engine control module main |
| F76 | Engine control module 2 |
| F78 | Horn |
| F79 | Washer pump |
| F81 | — |
| F82 | Engine control module battery |
| F83 | Engine control module/ Ignition coil |
| F84 | 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 | — |
| F87 | Sunroof |
| F88 | Aero shutter |
| F89 | — |
| F93 | Trailer park lamp |
| F95 | — |
| F96 | — |
| F99 | — |
| Relays | |
| K04 | Rear defog |
| K25 | Front wiper control |
| K37 | Front wiper speed |
| K64 | Starter motor |
| K66 | Powertrain |
| K71 | — |
| K73 | Air conditioning control |
| K80 | Starter pinion |
| K90 | — |
| K98 | — |
Passenger compartment
Inside the car, the fuse and relay box is located at the bottom of the instrument panel, behind the protective cover.
Diagram
Assignment
| F1 | 40A Direct current to direct current converter 2 (DC-DC) |
| F2 | 30A Body control module 4 |
| F3 | — |
| F4 | — |
| F5 | 25A Body control module 2 |
| F6 | 20A Body control module 3 |
| F7 | — |
| F8 | 20A Exterior lighting module 5 |
| F9 | — |
| F10 | 5A Steering column lock |
| F11 | 10A Body control module 1 |
| F12 | — |
| F13 | — |
| F14 | — |
| F15 | 15A Auxiliary power outlet rear cargo |
| F16 | — |
| F17 | 20A Exterior lighting module 7 |
| F18 | 10A Uplevel tail lamp |
| F19 | 10A 2021: Steering column lock assembly |
| 2022: Overhead Console Module/ Universal Garage Door Opener/ Rain Sensor/ Electronic Toll Collector | |
| F20 | 10A Sensing diagnostic module/ Automatic occupant sensing/ Data link connection/ Wireless charger |
| F21 | 5A 2021: Central gateway module/ Telematics control platform module |
| 2022: Central Gateway Module/ OnStar | |
| F22 | 10A External object calculating module/ Long range radar/ Park assist/front camera module/ Side blind zone alert |
| F23 | 10A Video processing module |
| F24 | — |
| F25 | 10A AC power outlet/ Auxiliary USB |
| F26 | — |
| F27 | 30A Amplifier |
| F28 | 60A 2021: Jumper |
| 2022: Heated Steering Wheel Module/ Exterior Lighting Module Battery 2/ Direct Current/ AC Inverter | |
| F29 | 10A Instrument duster/ Heads up display/ Air quality ionizer module/ Center stack display/ Heating ventilation air conditioning display |
| F30 | — |
| F31 | 2022: Run/Crank Auxiliary Power Module/ Battery System Manager/ Motor Control Unit |
| F32 | 10A 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 |
| F33 | — |
| F34 | 10A 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 |
| F35 | 15A Run crank for engine control module |
| F36 | 10A Electric park brake switch/ Shifter interface board |
| F37 | 15A Radio/ Center stack module/ Auxiliary jack |
| F38 | — |
| F39 | 2A Steering wheel clock spring |
| F40 | 20A Exterior lighting module 2 |
| F41 | 7,5A Heated steering wheel module |
| F42 | 20A Direct current to alternate current inverter module |
| CB1 | — |
| CB2 | 15A Auxiliary power outlet console |
| Relays | |
| K01 | Retained accessory power accessory |
| K02 | Run/ crank |
| K03 | — |
| K04 | — |
| K05 | — |
If you have anything to add, write in the comments.