Fuses and relays Buick Cascada (2015–2019)

This article provides a detailed overview of the fuse box diagrams for the Buick Cascada (first generation): 2015, 2016, 2017, 2018, and 2019 model years.

Fuses #6 and #7 in the passenger compartment fuse block protect the cigarette lighter and 12V power outlets.

Luggage Compartment

Located on the left side of the trunk, behind the trim panel.

General view.

Diagram
No.	Description
1	Right power distribution Convertible top control module
2	Empty
3	Rear parking assist module
4	Selective Catalytic Reduction (SCR) system
5	Empty
6	Empty
7	Power seat module
8	Convertible top control module
9	Selective Catalytic Reduction (SCR) system
10
11	Rear vision camera Tire Pressure Monitoring System (TPMS)
12	Reverse lamps Convertible top control module
13	Empty
14	Power folding rear seats
15	Empty
16	Convertible top control module Rear vision camera
17	Empty
18	Empty
19	Heated steering wheel
20	Empty
21	Heated seats
22	Empty
23	Left power distribution Convertible top control module
24	Selective Catalytic Reduction (SCR) system
25	Empty
26	Logistics mode
27	Passive entry system Passive start system
28	Empty
29	Hydraulic unit
30	Empty
31	Empty
32	Empty

Passenger Compartment

The fuse block is located behind the glove box within the instrument panel.

General view.

Diagram
No.	Description
1	Multimedia displays
2	Body Control Module (BCM) / Exterior lamps
3
4	Infotainment system
5	Instrument cluster / Infotainment system
6	Buick Cascada cigarette lighter / 12V power outlets
7
8	Body Control Module (BCM) / Left low-beam headlamp
9	Body Control Module (BCM) / Right low-beam headlamp
10	Body Control Module (BCM) / Door lock module
11	Interior blower motor
12	Driver power seat module
13	Passenger power seat module
14	Data Link Connector (DLC)
15	Airbag system
16	Trunk lid release relay
17	Air conditioning (A/C) system
18	Service diagnostics
19	Body Control Module (BCM) / Brake lamps / Reverse lamps / Interior lamps
20	Empty
21	Instrument panel
22	Ignition system
23	Body Control Module (BCM)
24	Body Control Module (BCM)
25	Empty
26	12V rear cargo power outlet

Engine Compartment

Located adjacent to the battery, beneath the plastic cover.

General view.

Diagram
No.	Description
1	Engine Control Module (ECM)
2	Oxygen (O2) sensor
3	Fuel injection and ignition systems
4
5	Empty
6	Heated outside mirrors
7	Cooling fan control module
8	Oxygen (O2) sensor and powertrain cooling
9	Rear window defogger sensor
10	Battery voltage sensor
11	Trunk release
12	Adaptive forward lighting module and automatic headlamp leveling
13	Anti-lock Braking System (ABS) valves
14	Empty
15	Engine Control Module (ECM)
16	Starter motor
17	Transmission Control Module (TCM)
18	Rear window defogger
19	Front power windows
20	Rear power windows
21	Rear electrical center
22	Empty
23	Empty
24	Right high-beam headlamp
25	Left high-beam headlamp
26	Front fog lamps
27	Empty
28	Empty
29	Electronic parking brake
30	Anti-lock Braking System (ABS) pump
31	Empty
32	Airbag system
33	Adaptive forward lighting / Automatic headlamp leveling
34	Exhaust Gas Recirculation (EGR)
35	Power windows / Rain sensor / Exterior mirrors
36	Climate control system
37	Empty
38	Vacuum pump
39	Fuel system control module
40	Windshield washer pump
41	Empty
42	Engine cooling fan
43	Windshield wipers
44	Empty
45	Engine cooling fan
46	Empty
47	Horn
48	Engine cooling fan
49	Buick Cascada fuel pump
50	Headlamp leveling system and adaptive forward lighting system
51	Empty
52	Empty
53	TCM / ECM
54	Vacuum pump / Instrument cluster / HVAC system