Buick Verano Fuse Box: What Each Fuse Does
From the 2017 Buick Verano owner's manual. 3 fuse boxes listed.
Engine Compartment Fuse Block
| Fuse | Amps | Circuit |
|---|---|---|
| 1 | 20 A | Engine control module |
| 2 | 7.5 A | O2 sensor/ Purge solenoid |
| 3 | 15 A | Ignition coils/ Injectors |
| 4 | 15 A | – |
| 5 | – | – |
| 6a | – | – |
| 6b | 7.5 A | Mirror defogger |
| 7 | 5 A | Powertrain cooling |
| 8 | 7.5 A | Mass airflow sensor/Pre – O2 sensor |
| 9 | – | – |
| 10 | 5 A | Battery potential signal |
| 11 | 7.5 A | – |
| 12 | – | – |
| 13 | 25 A | ABS valve |
| 14 | – | – |
| 15 | 10 A | Engine control module |
| 16 | 30 A | Starter control |
| 17 | 10 A | Transmission control module |
| 18 | 30 A | Rear window defogger |
| 19 | 30 A | Front power window |
| 20 | 30 A | Rear power window |
| 21 | 40 A | Rear electrical center |
| 22 | – | – |
| 23 | – | – |
| 24 | 15 A | Right high-beam headlamp |
| 25 | 15 A | Left high-beam headlamp |
| 26 | 15 A | Front fog lamps |
| 27 | 50 A | – |
| 28 | – | – |
| 29 | 30 A | Electric parking brake |
| 30 | 60 A | ABS pump |
| 31 | – | – |
| 32 | 5 A | Airbag |
| 33 | – | – |
| 34 | 7.5 A | – |
| 35 | 7.5 A | Door switch supply/Left power window |
| 36 | 10 A | A/C clutch |
| 37 | 10 A | Canister vent |
| 38 | – | – |
| 39 | 20 A | Fuel system control module |
| 40 | 10 A | Front windshield washer |
| 41 | – | – |
| 42 | 40 A | Engine cooling fan (RPO LEA) |
| 43 | 30 A | Front wipers |
| 44 | – | – |
| 45 | 30 A | Engine cooling fan (RPO LEA) |
| 46 | – | – |
| 47 | 15 A | Horn |
| 48 | 60 A | Engine cooling fan |
| 49 | 20 A | Fuel pump |
| 50 | 5 A | Rear vision camera |
| 51 | 7.5 A | Interior rearview mirror |
| 52 | – | – |
| 53 | 7.5 A | Ignition engine control module/ Transmission control module |
| 54 | 7.5 A | Instrument cluster/Fuel system control module/HVAC/ Run/Crank |
| Relay 1 | – | – |
| Relay 2 | – | Starter |
| Relay 3 | – | Engine control powertrain |
| Relay 4 | – | Rear window defogger |
| Relay 5 | – | – |
Instrument Panel Fuse Block
| Fuse | Amps | Circuit |
|---|---|---|
| 1 | 2 A | Steering wheel controls |
| 2 | 20 A | Body control module |
| 3 | 20 A | Body control module |
| 4 | 20 A | Infotainment system |
| 5 | 10 A | Information display/Parking assist |
| 6 | 20 A | Cigar lighter |
| 7 | 20 A | Power outlet |
| 8 | 30 A | Body control module |
| 9 | 30 A | Body control module |
| 10 | 30 A | Body control module |
| 11 | 40 A | Interior fan |
| 12 | 25 A | Driver power seat |
| 13 | – | – |
| 14 | 7.5 A | Diagnostic connector |
| 15 | 10 A | Airbag |
| 16 | 10 A | Central locking system/ Tailgate |
| 17 | 10 A | A/C system |
| 18 | 30 A | Infotainment system |
| 19 | 30 A | Body control module |
| 20 | 5 A | Passenger power seat |
| 21 | 5.5 A | Instrument cluster |
| 22 | 2A/5 A | Ignition/ Electronic key system |
| 23 | 20 A | Body control module |
| 24 | 20 A | Body control module |
| 25 | – | – |
| 26 | – | – |
| Relay 1 | – | Trunk open |
| Relay 2 | – | Door security |
| Relay 3 | – | Power outlet |
Source: owner's manual, PDF page 257.
Rear Compartment Fuse Block
Location: On the left side of the trunk behind a cover
| Fuse | Amps | Circuit |
|---|---|---|
| F1 | – | – |
| F02 | – | – |
| F03 | 5 A | Rear parking assist |
| F04 | – | – |
| F5 | – | – |
| F06 | – | – |
| F07 | 10 A | – |
| F08 | – | – |
| F09 | – | – |
| F10 | – | – |
| F11 | – | – |
| F12 | – | – |
| F13 | – | – |
| F14 | – | – |
| F15 | – | – |
| F16 | 5 A | Rear vision camera |
| F17 | – | – |
| F18 | – | – |
| F19 | 7.5 A | Heated steering wheel |
| F20 | 25 A | Sunroof |
| F21 | 25 A | Heated seats |
| F22 | – | – |
| F23 | – | – |
| F24 | – | – |
| F25 | 5 A | Side blind zone alert |
| F26 | 30 A | – |
| F27 | 30 A | Passive entry/ Passive start |
| F28 | – | – |
| F29 | – | – |
| F30 | – | – |
| F31 | 30 A | Amplifier |
| F32 | – | – |
| R01 | – | Run/Crank |
| R02 | – | Run |
| R03 | – | – |
| R04 | – | – |
| R05 | – | – |
Listings are copied as text from the manual's fuse tables (AI-assisted; every circuit name was matched against the cited pages 2026-10-18). Fuse layouts can differ by trim and year; check the label on the fuse box cover before replacing a fuse, and always use the same amp rating.
Confirm with your own manual, dipstick or door-jamb label.
Report a problem with this page →