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In this article, you will find information about the fuses of the Buick Regal (models 2014, 2015, 2016, and 2017), including diagrams of the fuse boxes, a list of fuses and relays, their designation, and the location of the fuse blocks within the vehicle.
Checking and Replacing Fuses in Buick Regal
The wiring circuits in the vehicle are protected from short circuits by a combination of fuses and circuit breakers. This greatly reduces the chance of damage caused by electrical problems.
To check a fuse, look at the silver-colored band inside the fuse. If the band is broken or melted, replace the fuse. Be sure to replace a bad fuse with a new one of the identical size and rating.
Fuses of the same amperage can be temporarily borrowed from another fuse location, if a fuse goes out. Replace the fuse as soon as possible.
Caution!
- Data on the replacement fuse must match the data on the defective fuse.
- Before replacing a fuse, turn every vehicle electrical switch off.
- Spilling liquid on any electrical component on the vehicle may damage it. Always keep the covers on any electrical component.
Location of Fuse Boxes
Engine Compartment Fuse Block:
To remove the fuse block cover, press the three retaining clips on the cover and lift it straight up.
Instrument Panel Fuse Block:
The instrument panel fuse block is located in the instrument panel, on the driver side of the vehicle. To access the fuses, open the storage compartment. Press in on the sides of the compartment to release it from the instrument panel. Pull the door toward you to release it from the hinge.
Fuse Box Diagrams
2014-2015
Engine Compartment Fuse Block
| № | Usage |
|---|---|
| 1 | Transmission Control Module |
| 2 | Engine Control Module |
| 3 | Not Used |
| 4 | Not Used |
| 5 | Ignition, Transmission Control Module, Engine Control Module |
| 6 | Windshield Wiper |
| 7 | BPIM (eAssist Only) |
| 8 | Not Used |
| 9 | Fuel Injection, Ignition System |
| 10 | Engine Control Module |
| 11 | Oxygen Sensor |
| 12 | Starter |
| 13 | Fuel System Control Module |
| 14 | Trunk Release |
| 15 | MGU Coolant Pump (eAssist Only) |
| 16 | Heated Steering Wheel |
| 17 | Not Used |
| 18 | BPIM (eAssist Only) |
| 19 | Not Used |
| 20 | Not Used |
| 21 | Rear Power Windows |
| 22 | Antilock Brake System Valve |
| 23 | Obstacle Detection |
| 24 | Front Power Windows |
| 25 | Power Outlets |
| 26 | Antilock Brake System Pump |
| 27 | Electric Parking Brake |
| 28 | Heated Rear Window |
| 29 | Left-Hand Seat Lumbar |
| 30 | Right-Hand Seat Lumbar |
| 31 | A/C Clutch |
| 32 | Body Control Module 6 |
| 33 | Heated Front Seats |
| 34 | Sunroof |
| 35 | Infotainment System |
| 36 | Adaptive Cruise |
| 37 | Right-Hand High-Beam Headlamp |
| 38 | Left-Hand High-Beam Headlamp |
| 39 | All-Wheel Drive |
| 40 | Not Used |
| 41 | Vacuum Pump |
| 42 | Radiator Fan |
| 43 | Passive Entry/Passive Start |
| 44 | Transmission Auxiliary Pump (eAssist Only) |
| 45 | Radiator Fan |
| 46 | Terminal 87, Main Relay |
| 47 | Oxygen Sensor |
| 48 | Fog Lamps |
| 49 | Right-Hand Low Beam, High Intensity Discharge Headlamp |
| 50 | Left-Hand Low Beam, High Intensity Discharge Headlamp |
| 51 | Horn |
| 52 | Motor Indicator Lamp |
| 53 | Inside Rearview Mirror |
| 54 | Rear Camera |
| 55 | Power Windows/ Mirrors |
| 56 | Windshield Washer |
| 57 | Not Used |
| 58 | Not Used |
| 59 | Secondary Air Induction (eAssist Only) |
| 60 | Heated Mirrors |
| 61 | Not Used |
| 62 | Canister Vent Solenoid |
| 63 | Not Used |
| 64 | Heater, Ventilation, and Air Conditioning Pump (eAssist Only) |
| 65 | Not Used |
| 66 | SAI Check Valve (eAssist Only) |
| 67 | Fuel System Control Module |
| 68 | Not Used |
| 69 | Battery Sensor |
| 70 | Right Low Beam Headlamp / DRL |
| 71 | Not Used |
| 1 | Air Conditioning Control |
| 2 | Starter |
| 3 | Not Used |
| 4 | Front Wiper (Step 2) |
| 5 | Front Wiper (Step 1, Interval) |
| 6 | Right Low Beam Headlamp / DRL |
| 7 | Main Relay |
| 8 | Auxiliary Heater Pump (eAssist Only) |
| 9 | Cooling Fan |
| 10 | Cooling Fan |
| 11 | Transmission Auxiliary Pump (eAssist Only) |
| 12 | Not Used |
| 13 | Cooling Fan |
| 14 | High Intensity Discharge Headlamp / Left Low Beam Headlamp / DRL |
| 15 | Ignition |
| 16 | Secondary AIR Pump (eAssist Only) |
| 17 | Window/Mirror Defog |
Instrument Panel Fuse Block
| № | Usage |
|---|---|
| 1 | Suspension Control Module / Universal Garage Door Opener / ESC |
| 2 | Body Control Module 1 |
| 3 | Body Control Module 5 |
| 4 | Radio |
| 5 | Radio Displays, Park Assist, Infotainment, Module Tunnel Control |
| 6 | Instrument Panel Power Outlet |
| 7 | Console Power Outlet |
| 8 | Body Control Module 3 |
| 9 | Body Control Module 4 |
| 10 | Body Control Module 8 |
| 11 | Front Heater Ventilation Air Conditioning / Blower |
| 12 | Right-Hand Power Front Seat |
| 13 | Left-Hand Power Front Seat |
| 14 | Diagnostic Link Connector |
| 15 | Airbag |
| 16 | Steering Wheel Controls |
| 17 | Heating Ventilation Air Conditioning Controller |
| 18 | Service Fuse, Logistic Relay |
| 19 | Memory Seats |
| 20 | Automatic Occupant Sensing |
| 21 | Instrument Cluster |
| 22 | Discrete Logic Ignition Switch / PEPS |
| 23 | Body Control Module 6 |
| 24 | Body Control Module 2 |
| 25 | OnStar |
| 26 | Spare |
2016-2017
Engine Compartment Fuse Block
| № | Usage |
|---|---|
| 1 | Transmission control module |
| 2 | Engine control module |
| 3 | - |
| 4 | - |
| 5 | Ignition / Transmission control module / Engine control module |
| 6 | Windshield wiper |
| 7 | BPIM (eAssist only) |
| 8 | - |
| 9 | Fuel injection / Ignition system |
| 10 | Engine control module |
| 11 | O2 sensor |
| 12 | Starter |
| 13 | Fuel system control module |
| 14 | Trunk release |
| 15 | MGU coolant pump (eAssist only) |
| 16 | Heated steering wheel |
| 17 | - |
| 18 | BPIM (eAssist only) |
| 19 | - |
| 20 | - |
| 21 | Rear power windows |
| 22 | ABS valve |
| 23 | Obstacle detection |
| 24 | Front power windows |
| 25 | Power outlets |
| 26 | ABS pump |
| 27 | Electric parking brake |
| 28 | Rear window defogger |
| 29 | Driver seat lumbar |
| 30 | Passenger seat lumbar |
| 31 | A/C clutch |
| 32 | Body control module 6 |
| 33 | Heated front seats |
| 34 | Sunroof |
| 35 | Infotainment system |
| 36 | Adaptive cruise |
| 37 | Right high-beam headlamp |
| 38 | Left high-beam headlamp |
| 39 | AWD |
| 40 | - |
| 41 | Vacuum pump |
| 42 | Radiator fan |
| 43 | Passive entry/Passive start |
| 44 | Transmission auxiliary pump (eAssist only) |
| 45 | Radiator fan |
| 46 | Terminal 87 / Main relay |
| 47 | O2 sensor |
| 48 | Fog lamps |
| 49 | Right low-beam HID headlamp |
| 50 | Left low-beam HID headlamp |
| 51 | Horn |
| 52 | Malfunction indicator lamp |
| 53 | Interior rearview mirror |
| 54 | Rear vision camera |
| 55 | Power windows/Mirrors |
| 56 | Windshield washer |
| 57 | - |
| 58 | - |
| 59 | Secondary air induction (eAssist only) |
| 60 | Heated mirrors |
| 61 | - |
| 62 | Canister vent solenoid |
| 63 | - |
| 64 | HVAC pump (eAssist only) |
| 65 | - |
| 66 | SAI check valve (eAssist only) |
| 67 | Fuel system control module |
| 68 | - |
| 69 | Battery sensor |
| 70 | Right low-beam headlamp / DRL |
| 71 | - |
| 1 | A/C control |
| 2 | Starter |
| 3 | - |
| 4 | Front wiper (step 2) |
| 5 | Front wiper (step 1) |
| 6 | Right low-beam headlamp / DRL |
| 7 | Main relay |
| 8 | Auxiliary heater pump (eAssist only) |
| 9 | Cooling fan |
| 10 | Cooling fan |
| 11 | Transmission auxiliary pump (eAssist only) |
| 12 | - |
| 13 | Cooling fan |
| 14 | HID headlamps / Left low-beam headlamp / DRL |
| 15 | Ignition |
| 16 | Secondary AIR pump (eAssist only) |
| 17 | Window/Mirror defogger |
Instrument Panel Fuse Block
| № | Usage |
|---|---|
| 1 | Suspension control module / Universal garage door opener / ESC |
| 2 | Body control module 1 |
| 3 | Body control module 5 |
| 4 | Radio |
| 5 | Radio displays / Parking assist / Infotainment / Module tunnel control |
| 6 | Instrument panel power outlet |
| 7 | Console power outlet |
| 8 | Body control module 3 |
| 9 | Body control module 4 |
| 10 | Body control module 8 |
| 11 | Front HVAC blower |
| 12 | Right front seat |
| 13 | Left front seat |
| 14 | Diagnostic link connector |
| 15 | Airbag |
| 16 | Steering wheel controls |
| 17 | HVAC controller |
| 18 | Service fuse / Logistics relay |
| 19 | Memory seats |
| 20 | Automatic occupant sensing |
| 21 | Instrument cluster |
| 22 | Discrete logic ignition switch / Passive entry/Passive start |
| 23 | Body control module 6 |
| 24 | Body control module 2 |
| 25 | OnStar |
| 26 | - |