Cadillac CT5 (2020 – 2026) Fuse Box Location & Diagrams
Locate the Cadillac CT5 (2020–2026) Fuse Box Location & Diagrams with detailed fuse panel locations, clear layout diagrams, and complete fuse assignments. Whether you’re troubleshooting an electrical problem, replacing a blown fuse, or checking a specific circuit, this guide provides the information you need.
Fuse Box Locations
Passenger compartment Fuse Box
The fuse box is located on the driver side of the instrument panel. To access, remove the end cover by gently prying with a plastic tool near each clip, beginning at the point shown. To install the cover, insert the tabs on the back of the cover into the slots in the instrument panel. Align the clips with the slots in the instrument panel, and press the cover into place.
Engine compartment Fuse Box
Lift the cover to access the fuses.
Luggage compartment Fuse Box
The rear compartment fuse block is behind a cover on the driver’s side of the rear compartment.
Fuse Box Diagrams
Passenger compartment Fuse Box
| № | Description |
|---|---|
| 1 | — |
| 2 | HVAC blower |
| 3 | — |
| 4 | — |
| 5 | 2020-2021: Theft deterrent/ Universal garage door opener 2022-2026: Theft Deterrent/ Universal Garage Door Opener/ Overhead Console/ Rain Sensor |
| 6 | — |
| 7 | 2020-2024: Air quality ionizer |
| 8 | Heated steering wheel |
| 9 | — |
| 10 | Electronic steering column lock 1 |
| 11 | — |
| 12 | — |
| 13 | — |
| 14 | — |
| 15 | — |
| 16 | — |
| 17 | — |
| 18 | 2020-2021: Display/ Infotainment/ USB 2022-2025: Display/ Infotainment/ USB/ Multi-function Control Module 2026: Display/ Infotainment |
| 19 | 2020-2021: Airbag/ Automatic occupant sensing/ Data link connection/ Wireless charging module 2022-2024: Sensing and Diagnostic Module/ Automatic Occupant Sensing/ Data Link Connection/ Wireless Charging Module/ Virtual Key Module 2025: Sensing and Diagnostic Module/Automatic Occupant Sensing/Data Link Connection/Wireless Charging Module 2026: Airbag/Automatic Occupant Sensing/Data Link Connection/Wireless Charging Module |
| 20 | Power steering column module/ Electronic steering column lock 2 |
| 21 | 2022-2026: Driver Monitor System/ Performance Data Recorder |
| 22 | — |
| 23 | — |
| 24 | — |
| 25 | USB |
| 26 | — |
| 27 | — |
| 28 | — |
| 29 | — |
| 30 | — |
| 31 | Headlamp level |
| 32 | — |
| 33 | Body ignition/IP ignition |
| 34 | Exhaust valve |
| 35 | Transmission control module ignition/ Engine control module ignition/ Shift ignition/ Brake ignition |
| 36 | 2020-2024: Shift module 2025: Body Control Module 1 2026: Electronic Transmission Range Select/Shift Module/Body Control Module 1/Electric Parking Brake Switch |
| 37 | 2020-2024: Body control module 1/ Electronic park brake switch 2025-2026: Headlight LH RH |
| 38 | 2020-2024: Center stack module 2025-2026: Virtual Cockpit Unit |
| 39 | Steering wheel controls |
| 40 | Body control module 2 |
| 41 | Body control module 3 |
| 42 | Body control module 4 |
| CB1 | Auxiliary power outlet 1 (Circuit Breaker) |
| CB2 | Auxiliary power outlet 2 (Circuit Breaker) |
| Relays | |
| 1 | Run after park/ Accessory |
| 2 | Run crank |
| 3 | — |
| 4 | — |
| 5 | — |
Engine compartment Fuse Box
| № | Description |
|---|---|
| 1 | Long range radar front sensor |
| 2 | 2020-2024: Park/Daytime running lamps |
| 3 | Exterior lighting module 4 |
| 4 | Exterior lighting module 7 |
| 5 | 2020-2024: Headlamp level |
| 6 | — |
| 7 | Electronic brake control module |
| 8 | Washer pump |
| 9 | — |
| 10 | — |
| 11 | — |
| 12 | Horn |
| 13 | Front wiper |
| 14 | 2020-2024: Exterior lighting module 6 |
| 15 | 2020-2024: Exterior lighting module 1 |
| 16 | Exterior lighting module 5 |
| 17 | Exterior lighting module 3 |
| 18 | Aero shutter |
| 19 | — |
| 20 | — |
| 21 | 2020-2024: Virtual key system/ Power sounder module 2025-2026: Automatic Light Module/ Power Sounder Module |
| 22 | 2022-2026: Engine Control Module Battery |
| 23 | Transmission control module |
| 24 | Active engine mount |
| 25 | — |
| 26 | Engine control module |
| 27 | Injectors/Ignition 2 |
| 28 | Charged air cooler |
| 29 | 2020-2021: Transmission coolant pump 2022-2026: Transmission Aux Oil Pump/ Transmission Reverse Lock Out |
| 30 | Injectors/Ignition 1 |
| 31 | Emissions 1 |
| 32 | Emissions 2 |
| 33 | Starter solenoid |
| 34 | — |
| 35 | 2020-2021: Coolant pump |
| 36 | Starter pinion |
| 37 | 2020-2024: AC clutch |
| 38 | — |
| 39 | — |
| 40 | — |
| 41 | — |
| 42 | Water pump |
| 43 | — |
| 44 | — |
| Relays | |
| 47 | — |
| 48 | Front wiper speed |
| 49 | Front wiper control |
| 51 | — |
| 52 | Engine control module |
| 53 | Starter solenoid |
| 54 | Starter pinion |
| 55 | — |
| 57 | AC clutch |
| 58 | — |
Luggage compartment Fuse Box
| № | Description |
|---|---|
| 1 | Remote function actuator |
| 2 | 2020-2021: Engine control module |
| 3 | Driver heated seat |
| 4 | Fuel tank zone module |
| 5 | — |
| 6 | — |
| 7 | — |
| 8 | — |
| 9 | — |
| 10 | 2020-2025: Motor seat belt passenger |
| 11 | Canister vent solenoid |
| 12 | Sunroof |
| 13 | — |
| 14 | — |
| 15 | Passenger heated seat |
| 16 | 2024-2026: Exterior Lighting Module 1 |
| 17 | Electronic suspension control |
| 18 | — |
| 19 | 2020-2025: Motor seat belt driver |
| 20 | Rear defog |
| 21 | DC to DC transformer 2 |
| 22 | Driver Power Window/ Door Handle Switch |
| 23 | 2020-2021: External object calculating module/ Front camera module 2022-2025: External Object Calculating Module/ Front Camera Module/ High Definition Localization Module/ Short Range Radar 2026: ADAS Computing Platform/ Front Camera Module/ Short Range Radar |
| 24 | Passenger Power Window/ Door Handle Switch |
| 25 | — |
| 26 | 2020-2021: Trailer 2022-2024: Amplifier (V-Series Blackwing) |
| 27 | Rear drive control module |
| 28 | — |
| 29 | — |
| 30 | — |
| 31 | DC to DC transformer 1 |
| 32 | Transfer case electronic control |
| 33 | Central gateway module / Side blind zone alert |
| 34 | Video processing module |
| 35 | Hands free closure release |
| 36 | Exterior lighting module 2 |
| 37 | Passenger memory seat module |
| 38 | 2020-2021: Trailer 2 2024-2026: Amplifier |
| 39 | Right front/Right rear window |
| 40 | — |
| 41 | — |
| 42 | Amplifier |
| 43 | Park assist module |
| 44 | Driver memory seat module |
| 45 | OnStar |
| 46 | — |
| 47 | 2024: Exterior Lighting Module 6 2025-2026: Exterior Lighting Module 7 |
| 48 | — |
| 49 | 2020-2021: Trailer |
| 50 | Driver seat |
| 51 | Left front/Left rear window |
| 52 | Passenger seat |
| Relays | |
| 53 | — |
| 54 | — |
| 55 | Run |
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