Buick Regal (2018 – 2020) Fuse Box Location & Diagrams
Welcome to our comprehensive guide on the Buick Regal Fuse Box Location & Diagrams for 2018–2020 models. This user-friendly resource will help you identify fuse locations, understand their functions, and offer step-by-step troubleshooting advice for a smooth driving experience. Whether you’re a DIY mechanic or just need a quick reference, this guide covers everything you need to know.
Passenger Compartment Fuse Box
Buick Regal (2018, 2019 and 2020)
Fuse box location
The instrument panel fuse block is in the instrument panel, on the driver side of the vehicle
To access the fuses, press in on the sides of the cover and pull to release it from the instrument panel. Pull the panel toward you to release it from the hinges.
Fuse Box Diagram
| No | Description |
|---|---|
| F1 | Left window |
| F2 | Right window |
| F3 | Not used |
| F4 | HVAC blower |
| F5 | Battery 2 |
| F6 | Electric steering column |
| F7 | Not used |
| F8 | Battery 3 |
| F9 | Engine control module/Battery |
| F10 | Body control module 2 On/Off |
| F11 | Not used |
| F12 | Not used |
| F13 | Not used |
| F14 | Not used |
| F15 | Transmission control module On/Off |
| F16 | Amplifier |
| F17 | Not used |
| F18 | Battery 7 |
| F19 | Not used |
| F20 | Battery 1 |
| F21 | Battery 4 |
| F22 | Battery 6 |
| F23 | Electric steering column lock |
| F24 | Airbag sensing diagnostic module/Passenger sensing module |
| F25 | Diagnostic link |
| F26 | Not used |
| F27 | AC DC inverter |
| F28 | Not used |
| F29 | Body control module 8 |
| F30 | Overhead console |
| F31 | Steering wheel control |
| F32 | Not used |
| F33 | HVAC |
| F34 | Center gateway module |
| F35 | Integrated chassis control module |
| F36 | Charger |
| F37 | Auxiliary power outlet/Cigar lighter |
| F38 | OnStar |
| F39 | Monitor |
| F40 | Object detection |
| F41 | Body control module 1 On/Off |
| F42 | Radio |
| F43 | Rear accessory power outlet |
| F44 | Front accessory power outlet |
| Relays | |
| K1 | Not used |
| K2 | Retained accessory power |
| K3 | Not used |
| K4 | Not used |
| K5 | Logistics |
Engine Compartment Fuse Box
Buick Regal (2018, 2019 and 2020)
Fuse box location
To remove the fuse block cover, squeeze the three retaining clips on the cover and lift it straight up.
Fuse Box Diagram
| No | Description |
|---|---|
| 1 | Not used |
| 2 | Not used |
| 3 | ABS pump |
| 5 | Not used |
| 6 | Rear closure |
| 7 | Fog lamp |
| 8 | Memory control module |
| 9 | Heated windshield |
| 10 | Seat lumbar |
| 11 | DC DC converter 1 |
| 12 | Rear window defogger |
| 13 | Heated mirrors |
| 14 | Not used |
| 15 | Not used |
| 16 | Front wipers |
| 17 | Passenger power seat |
| 18 | Sun shade |
| 19 | Driver power seat |
| 21 | Sunroof |
| 22 | Rear wiper |
| 23 | Auto headlamp leveling |
| 24 | Not used |
| 26 | Transmission control module/Ignition |
| 27 | Instrument panel/Ignition |
| 28 | Not used |
| 29 | Rear vision camera/Ventilation |
| 30 | Malfunction indicator lamp/Shift solenoid |
| 32 | Canister vent/Video processing module |
| 33 | Front heated seats |
| 34 | Rear heated seats |
| 35 | All wheel drive damping control |
| 36 | Fuel module |
| 38 | Not used |
| 39 | Not used |
| 40 | Steering column lock |
| 41 | Not used |
| 43 | Heated steering wheel |
| 44 | Headlamp leveling |
| 45 | Not used |
| 46 | Engine control module/Ignition |
| 47 | Not used |
| 48 | Cooling fan/DC DC converter 2 |
| 49 | RDCM |
| 50 | Not used |
| 51 | Not used |
| 52 | Not used |
| 53 | Not used |
| 54 | Not used |
| 55 | Not used |
| 56 | Starter |
| 57 | Not used |
| 58 | Not used |
| 59 | Left LED lamps |
| 60 | Cooling fan |
| 61 | Not used |
| 62 | Not used |
| 63 | Not used |
| 65 | A/C HEV |
| 67 | Not used |
| 68 | Not used |
| 69 | Right LED lamp/Right high-beam headlamps |
| 70 | Left high-beam headlamps |
| 72 | Starter pinion |
| 74 | Not used |
| 75 | Engine control module |
| 76 | Powertrain – off engine |
| 77 | Not used |
| 78 | Horn |
| 79 | Washer pump |
| 81 | Transmission control module/ Engine control module |
| 82 | Not used |
| 83 | Ignition coils |
| 84 | Coil |
| 85 | Shunt 60A |
| 86 | Not used |
| 87 | SAI fuel heater |
| 88 | Aeroshutter |
| 89 | Not used |
| 91 | Not used |
| 92 | TPIM motor generator/TPIM |
| 93 | Keyless entry control module |
| 95 | Water change air coolant pump |
| 96 | Fuel heater |
| 97 | Not used |
| 99 | Not used |
| Relays | |
| 4 | Not used |
| 20 | Rear window defogger |
| 25 | Front wiper control |
| 31 | Run/Crank |
| 37 | Front wiper speed |
| 42 | Not used |
| 64 | Starter motor |
| 66 | Powertrain |
| 71 | Right LED high beam |
| 73 | AC clutch |
| 80 | Starter pinion |
| 90 | Water change air coolant pump |
| 94 | Not used |
| 98 | Fuel heater |
