Table of Contents
This article provides a detailed overview of the fuse box diagrams for the Buick Envision (second generation): 2020, 2021, and 2022 model years.
Fuse F25 in the instrument panel fuse block protects the front cigar lighter and auxiliary power outlet circuit.
Engine Compartment Fuse Block
Located on the driver’s side, beneath the plastic cover. To access the fuse block, squeeze the retaining clips on the cover and lift it straight up.
| Diagram | |
|---|---|
|
|
| No. | Description |
| Relays | |
| K04 | Rear window defogger |
| K25 | Front wiper control relay |
| K37 | Front wiper speed relay |
| K64 | Starter motor relay |
| K66 | Powertrain relay |
| K71 | Not used |
| K73 | Air conditioning (A/C) control relay |
| K80 | Starter pinion relay |
| K90 | Not used |
| K98 | Not used |
| Fuses | |
| F02 | Trailer right stop/turn signal |
| F03 | Electronic Brake Control Module (EBCM) |
| F05 | Rear window defogger |
| F06 | Not used |
| F07 | Trailer left stop/turn signal |
| F08 | 2020–2021: Overhead console module / Universal garage door opener / Rain sensor |
| F09 | Semi-active damping system suspension control module |
| F10 |
|
| F11 | DC/DC converter 1 |
| F12 | Power liftgate |
| F13 | Not used |
| F14 | Evaporative emissions (EVAP) canister vent solenoid |
| F15 | Not used |
| F16 | Front windshield wipers |
| F17 | Front passenger power seat |
| F18 | Left power window motor |
| F19 | Right power window motor |
| F21 | Exterior lighting module 1 |
| F22 | Exterior lighting module 3 |
| F23 | Exterior lighting module 6 |
| F24 | Not used |
| F26 | Transmission Control Module (TCM) DC/DC converter |
| F27 | Remote function actuator module |
| F28 | Not used |
| F29 | Exterior lighting module 4 |
| F30 | Memory seat module (driver) |
| F32 | Right headlamp |
| F33 | Heated seats (front) |
| F34 | Heated seats (rear) |
| F35 | Door panel / Driver and front passenger seat position switches |
| F36 | Fuel tank zone control module |
| F39 | Hands-free closure control module |
| F40 | Left headlamp |
| F41 | Not used |
| F44 | Rear window wiper |
| F48 | HVAC 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 module |
| F59 | Not used |
| F60 | Not used |
| F61 | Not used |
| F62 | Not used |
| F63 | Not used |
| F65 | Air conditioning (A/C) control module |
| F67 | Not used |
| F68 | Not used |
| F69 | Not used |
| F70 | Not used |
| F72 | Starter pinion |
| F74 | Not used |
| F75 | Engine Control Module (ECM) - Main |
| F76 | Engine Control Module (ECM) 2 |
| F78 | Horn |
| F79 | Windshield washer pump |
| F81 | Not used |
| F82 | Engine Control Module (ECM) - Battery |
| F83 | Engine Control Module (ECM) / Ignition coils |
| F84 | 2020–2021: Off-engine 1 / Off-engine 2 |
| 2022: Mass airflow sensor / Oxygen sensor / Intake air temperature sensor / Throttle inlet absolute pressure and humidity sensor / Heated oxygen sensor / Engine coolant flow control valve / Evaporative emission (EVAP) purge pump / Wide-range air/fuel sensor / Canister purge solenoid / Turbocharger bypass valve / Intake camshaft position actuator / Exhaust camshaft position actuator / Engine oil pressure control solenoid | |
| F86 | Not used |
| F87 | Sunroof / Moonroof |
| F88 | Active aero shutters |
| F89 | Not used |
| F93 | Trailer parking lamps |
| F95 | Not used |
| F96 | Not used |
| F99 | Not used |
Instrument Panel Fuse Block
Located on the driver’s side, behind the instrument panel cover. To access the fuse block, pry the cover off, starting from the top edge. Once the upper retaining clips are disengaged, pull the bottom tabs out of the instrument panel to completely remove the cover.
| Diagram | ||
|---|---|---|
|
||
| No. | Description | Amps |
| Relays | ||
| K01 | Retained Accessory Power (RAP) | |
| K02 | Run/Crank relay | |
| K03 | Not used | |
| K04 | Not used | |
| K05 | Not used | |
| Fuses | ||
| F1 | DC/DC converter 2 | 40 |
| F2 | Body Control Module (BCM) 4 | 30 |
| F3 | Not used | — |
| F4 | Not used | — |
| F5 | Body Control Module (BCM) 2 | 25 |
| F6 | Body Control Module (BCM) 3 | 20 |
| F7 | Not used | — |
| F8 | Exterior lighting module 5 | 20 |
| F9 | Not used | — |
| F10 | Steering column lock module | 5 |
| F11 | Body Control Module (BCM) 1 | 10 |
| F12 | Not used | — |
| F13 | Not used | — |
| F14 | Not used | — |
| F15 | Rear cargo auxiliary 12V power outlet / Rear cigar lighter | 15 |
| F16 | Not used | — |
| F17 | Exterior lighting module 7 | 20 |
| F18 | Uplevel tail lamps | 10 |
| F19 | 2020–2021: Steering column lock assembly | 10 |
| 2022: Overhead console module / Universal garage door opener / Rain sensor / Electronic toll collection module | ||
| F20 | Sensing and Diagnostic Module (SDM) / Automatic occupant sensing system / Data Link Connector (DLC) / Wireless charging module | 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 / Parking assist / Front camera module / Side blind zone alert | 10 |
| F23 | Video processing module | 10 |
| F24 | Not used | — |
| F25 | 12V auxiliary power outlet / USB ports / Front cigar lighter | 10 |
| F26 | Not used | — |
| F27 | Audio amplifier | 30 |
| F28 | 2020–2021: Jumper | 60 |
| 2022: Heated steering wheel module / Exterior lighting module (battery 2) / DC/AC inverter module | ||
| F29 | Instrument cluster / Head-Up Display (HUD) / Air quality ionizer module / Center stack display / HVAC display | 10 |
| F30 | Not used | — |
| F31 | 2022: Run/Crank / Auxiliary power module / Battery system manager / Motor control unit | — |
| F32 | Run/Crank miscellaneous 3 / Humidity sensor / Exterior lighting module / Electronic Brake Control Module (EBCM) / Exterior air quality sensor / Headlamp manual leveling (left/right) / Inside rearview mirror / Interior particulate matter sensor / Driver and front passenger seat ventilation controls | 10 |
| F33 | Not used | |
| F34 | Run/Crank miscellaneous 1 & 2 / Shifter interface board module / Instrument panel cluster / Transmission Control Module (TCM) / Sensing and Diagnostic Module (SDM) / Headlamp manual leveling switch / Reflective light auxiliary display | 10 |
| F35 | Run/Crank: Engine Control Module (ECM) | 15 |
| F36 | Electric Parking Brake (EPB) switch / Shifter interface board | 10 |
| F37 | Radio / Center stack module / Auxiliary input 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 | DC/AC inverter module | 20 |
| CB1 | Not used | — |
| CB2 | Center console auxiliary power outlet | 15 |