Cadillac Lyriq (2023 – 2026) Fuse Box Diagrams & Location

Cadillac Lyriq (2023 – 2026) Fuse Box Diagrams & Location

The Cadillac Lyriq (2023–2026) uses advanced electrical systems managed through dedicated fuse boxes. This guide provides accurate fuse box locations and diagrams to help owners identify fuse panels, understand circuit assignments, and quickly locate specific fuses for maintenance, diagnostics, and electrical troubleshooting.

Fuse Box Location 

Engine Compartment Fuse Box

The Underhood Compartment Fuse Block is under a cover and side extension/shield in the underhood compartment.

To Access:

1. Unclip right side of shield and remove the right side access cover;
2. Remove the M6 bolt to access the fuse block;
3. Open the fuse block cover – press the clips at the side and back and pull the cover up.

Passenger Compartment Fuse Box

The instrument panel fuse block is to the right of the glove box.

Fuse Box Diagrams

Engine Compartment Fuse Box

№	Usage
1	Spare
2	–
3	Spare
4	Spare
5	Spare
6	Memory Seat Module / Memory Bolster Module
7	Primary Evaporator Expansion Valve / Secondary Evaporator Expansion Valve and External Condenser Flow Valve / Condensing Heater Flow Valve
8	Motor Main Coolant Valve and Air Condition Electric Compressor
9	Power Electronics Coolant Pump and Energy Storage System Coolant Pump
10	–
11	–
12	Electrification Control Processor (Traction Power Inverter Module 2) & On Board Charging Module 2
13	–
14	–
15	Trailer Park Lamps
16	Trailer Reverse Lamp
17	–
18	Glove Box Release
19	–
20	–
21	Charqe Port Door Motor
22	Alternate Current / Direct Current Inverter Module
23	–
24	–
25	–
26	Spare
27	–
28	Electronic Toll Control Module
29	–
30	Rear Cargo Auxiliary Power Outlet
31	Trailer Interface Module Battery Source 1
32	Spare
33	Spare
34	Exterior Lighting Module 5
35	Exterior Lighting Module 4
36	–
37	–
38	Exterior Lighting Module 7
39	Exterior Lighting Module 3
40	Electrification Control Processor (Traction Power Inverter Module 1) Source 3 and 1
41	Door Switch Panel and Suspension Control Leveling 2
42	Seat Position Switch and Virtual Key Module Sensor / Rain Light Humidity Sensor
43	Steering Column Lock and Charge Interface Module
44	Power Sounder Module and Aero Shutter
45	Remote Function Actuator Module and Handsfree Closure Module
46	Adaptive Forward Lighting / Automatic Headlamp Leveling and Pedestrian Friendly Alert Module
47	Lit Grille / Front Park Emblem and Semi Active Damping System
48	Power Tailgate
49	–
50	Motor Window Lifter Left
51	Suspension Control Leveling 1
52	Motor Window Lifter Right
53	Front Wiper
54	Trailer Battery
55	–
56	Fold Seat Riqht Motor
57	Electronic Brake Control Module
58	Front Blower Motor
59	–
60	Horn
61	Rear Defog
62	Rear Blower Motor
63	Motor Sunroof and Motor Sunshade
64	Power Seat Driver
65	Power Seat Passenger
66	Condenser Radiator Fan Module
67	Heated Wiper
68	Spare
69	Spare
70	RELAY’S COIL
71	Rear Heated Seat 2
72	Front Heated Seat 1
73	Fold Seat Left Motor
74	Trailer Interface Module Battery Source 2
75	Spare
76	Spare
77	Spare
78	Trailer Stop Turn Left and Trailer Stop Turn Right
79	Rear Heated Seat 1
80	Front Heated Seat 2
81	Out of Park Disable
82	Wash Pump (Front)
83	Camera Wash