Buick Regal (2018-2020…) fuses and relays



In this article, we consider the sixth generation Buick Regal, available from 2018 to the present. Here you will find fuse box diagrams of Buick Regal 2018, 2019 and 2020, get information about the location of the fuse panels inside the car, and learn about the assignment of each fuse (fuse layout) and relay.

Fuse Layout Buick Regal 2018-2020…

Cigar lighter / power outlet fuses in the Buick Regal are the fuse №F37 (Auxiliary power outlet/Cigar lighter), №43 (Rear accessory power outlet) and №44 (Front accessory power outlet) in the Passenger compartment fuse box.

Fuse box location

Passenger compartment fuse box

It is located in the left side of the dashboard, behind the cover.The location of the fuses in the passenger compartment: Buick Regal (2018, 2019-...)

Engine compartment

The location of the fuses in the engine compartment: Buick Regal (2018, 2019-...)

Fuse box diagrams


2018, 2019, 2020

Passenger compartment

Instrument panel fuse box diagram: Buick Regal (2018, 2019-...)

Assignment of the fuses and relays in the Passenger compartment
F1Left window
F2Right window
F3Not used
F4HVAC blower
F5Battery 2
F6Electric steering column
F7Not used
F8Battery 3
F9Engine control module/Battery
F10Body control module 2 On/Off
F11Not used
F12Not used
F13Not used
F14Not used
F15Transmission control module On/Off
F17Not used
F18Battery 7
F19Not used
F20Battery 1
F21Battery 4
F22Battery 6
F23Electric steering column lock
F24Airbag sensing diagnostic module/Passenger sensing module
F25Diagnostic link
F26Not used
F27AC DC inverter
F28Not used
F29Body control module 8
F30Overhead console
F31Steering wheel control
F32Not used
F34Center gateway module
F35Integrated chassis control module
F37Auxiliary power outlet/Cigar lighter
F40Object detection
F41Body control module 1 On/Off
F43Rear accessory power outlet
F44Front accessory power outlet
K1Not used
K2Retained accessory power
K3Not used
K4Not used


Engine compartment

Under-hood fuse box diagram: Buick Regal (2018, 2019-...)

Assignment of the fuses and relays in the engine compartment
1Not used
2Not used
3ABS pump
5Not used
6Rear closure
7Fog lamp
8Memory control module
9Heated windshield
10Seat lumbar
11DC DC converter 1
12Rear window defogger
13Heated mirrors
14Not used
15Not used
16Front wipers
17Passenger power seat
18Sun shade
19Driver power seat
22Rear wiper
23Auto headlamp leveling
24Not used
26Transmission control module/Ignition
27Instrument panel/Ignition
28Not used
29Rear vision camera/Ventilation
30Malfunction indicator lamp/Shift solenoid
32Canister vent/Video processing module
33Front heated seats
34Rear heated seats
35All wheel drive damping control
36Fuel module
38Not used
39Not used
40Steering column lock
41Not used
43Heated steering wheel
44Headlamp leveling
45Not used
46Engine control module/Ignition
47Not used
48Cooling fan/DC DC converter 2
50Not used
51Not used
52Not used
53Not used
54Not used
55Not used
57Not used
58Not used
59Left LED lamps
60Cooling fan
61Not used
62Not used
63Not used
67Not used
68Not used
69Right LED lamp/Right high-beam headlamps
70Left high-beam headlamps
72Starter pinion
74Not used
75Engine control module
76Powertrain – off engine
77Not used
79Washer pump
81Transmission control module/ Engine control module
82Not used
83Ignition coils
85Shunt 60A
86Not used
87SAI fuel heater
89Not used
91Not used
92TPIM motor generator/TPIM
93Keyless entry control module
95Water change air coolant pump
96Fuel heater
97Not used
99Not used
4Not used
20Rear window defogger
25Front wiper control
37Front wiper speed
42Not used
64Starter motor
71Right LED high beam
73AC clutch
80Starter pinion
90Water change air coolant pump
94Not used
98Fuel heater