
Cadillac OPTIQ 2026 Fuse Box Info
Passenger compartment fuse box location:

The instrument panel fuse box is on the passenger side of the instrument panel, between the glove box and the door.
Engine compartment fuse box location:

Fuse Box Diagram | Layout
Passenger compartment fuse box:

| Fuse/Relay N° | Functions |
| 1 | - |
| 2 | APO CONSOLE BIN – Auxiliary Power Outlet Console Bin |
| 3 | USB CHARGE PORT – Universal Serial Bus Charge Port |
| 4 | APO AC 150W – Auxiliary Power Outlet Alternating Current 150 Watts |
| 5 | STRG COL LOCK – Steering Column Lock |
| 6 | ELM 1 – Exterior Lighting Module 1 |
| 7 | DR HANDLE LT – Driver and Rear Left Door Handles |
| 8 | - |
| 9 | DR HANDLE RT – Passenger and Rear Right Door Handles |
| 10 | - |
| 11 | AMPLIFIER UQP – Amplifier 2 Performance Audio, Branded Surrounding Amplifier |
| 12 | HVAC BLOWER – Heating Ventilation Air Conditioning Blower |
| 13 | IPE/VICM/TPIM R/C– Integrated Power Electronics/ Vehicle Integration Control Module/ Traction Power Inverter Module Run/Crank TRLR – Trailer Connector |
| 14 | HDLP LVL – Headlight Leveling |
| 15 | HDLP RT – Headlight Right |
| 16 | STRG WHL CLCK SPRG– Steering Wheel Clock Switches |
| 17 | SEAT FAN DR – Driver Seat Fan SEAT FAN CODR- – Passenger Seat Fan |
| 18 | USB – Universal Serial Bus Audio VCD – Video Auxiliary Jack/Virtual Cockpit Display |
| 19 | IP – Interior Particulate Matter Sensor Run/Crank Electronic Toll Collection Module Run/Crank Headlight Switchback Run/Crank Reflective Light Auxiliary Display Run/Crank BODY – Trailer Interface Module Run/Crank Inside Rear View Mirror Run/Crank Sensing and Diagnostic Module Run/Crank Exterior Lighting Module Run/Crank Electronic Brake Control Run/Crank |
| 20 | VICM – Vehicle Integration Control Module. BCM 1 – Body Control Module 1 |
| 21 | EPBS/ETRS – Electric Park Brake Switch/Electronic Transmission Range Select SCL – Steering Column Lock |
| 22 | VCU 1 – Virtual Cockpit Unit 1 VCU 2 – Virtual Cockpit Unit 2 |
| 23 | T/LAMP LT – Tail/Lamp Light Left T/LAMP RT – Tail/Lamp Light Right |
| 24 | SDM/AOS – Sensing Diagnostic Module/Passenger Automatic Occupant Sensing Module DLC – Data Link Connector |
| 25 | CGM – Central Gateway Module OHC – Overhead Console |
| 26 | HUD/HVAC DSPLY/ETC– Head-up Display/Heating Ventilation/Air Conditioning Displays/Electronic Toll Collector ACEC/IPE2 BATT 2 AC – Electric Compressor/Integrated Power Electronics 2 Battery 2 |
| 27 | BCM 3 – Body Control Module 3 |
| 28 | BCM 2 – Body Control Module 2 |
| 29 | AMP – Amplifier 1 |
| 30 | BCM 4 – Body Control Module 4 |
| 31 | ILSS/MFC/VDM/DMS – Indicator Light and Solar Sensor/Multi-function Control/Vehicle Data Monitor Module/Driver Monitoring System Module |
| 32 | HSWM – Heated Steering Wheel Module |
| 33 | - |
| 34 | ELM 2 – Exterior Lighting Module 2 |
| 35 | HDLP LT – Headlight Left |
| 36 | IPE/TPIM – Integrated Power Electronics 2/Traction Power Inverter Module 2 |
| 37 | TCP – Telematics Communication Platform (OnStar) |
| 38 | WCM – Wireless Charger Module |
| 39 | HI VOLTAGE SYS LOCKOUT – High Voltage System Lockout |
| 40 | PLCM ODS – Power Line Communication Module/Occupant Detection Sensor |
| 41 | ELM 6 – Exterior Lighting Module 6 |
| 42 | - |
Engine compartment fuse box:

| Fuse/Relay N° | Functions |
| 1 | SPARE |
| 2 | - |
| 3 | SPARE |
| 4 | SPARE |
| 5 | SPARE |
| 6 | MSM_MBM_DRVR – Memory Seat Module/Memory Seat Bolster Driver MSM_MBM_CODR – Memory Seat Module/Memory Seat Bolster Passenger |
| 7 | CHIM – Charge Interface Module SPARE |
| 8 | SPARE MTR_MAIN COOL VLV – Motor Main Coolant Valve |
| 9 | TPIM 3 – Traction Power Inverter Module 3 TPIM 1 – Traction Power Inverter Module 1 |
| 10 | - |
| 11 | - |
| 12 | IPE – Integrated Power Electronics OBCM 2 – On Board Charging Module 2 |
| 13 | MTR_PECP – Power Electronic Coolant Pump Motor MTR_ESSCP – Energy Storage System Coolant Pump Motor |
| 14 | - |
| 15 | - |
| 16 | - |
| 17 | Power Sounder Auxiliary Alarm Sensor Module |
| 18 | GLBX_DR_RELSE – Glove Box Door Release |
| 19 | - |
| 20 | - |
| 21 | CHARGE_PORT_DR MTR/LMP – Charge Port Door Motor/Light |
| 22 | - |
| 23 | - |
| 24 | - |
| 25 | - |
| 26 | SPARE |
| 27 | - |
| 28 | - |
| 29 | - |
| 30 | PECP – Power Electronic Coolant Pump |
| 31 | - |
| 32 | SPARE |
| 33 | SPARE |
| 34 | ELM 5 – Exterior Lighting Module 5 |
| 35 | ELM 4 – Exterior Lighting Module 4 |
| 36 | ACP 3 – Advance Driver Assistance Systems Compute Platform 3 |
| 37 | SADS – Semi Active Damping System |
| 38 | ELM 7 – Exterior Lighting Module 7 |
| 39 | ELM 3 – Exterior Lighting Module 3 |
| 40 | IRM_PCEV_ECFV_CHFV – Integrated Refrigerant Module/Primary Chiller Expansion Valve/External Condenser Flow Valve/Condensing Heater Flow Valve PEEV – Primary Evaporator Expansion Valve |
| 41 | DSP_DR – Door Switch Panel Driver DSP_CODR – Door Switch Panel Passenger |
| 42 | VKM_SNSRS_RLH_SNSR – Virtual Key Module Sensors/Rain Light Humidity Sensor SEAT_POS_SW – Seat Position Switch |
| 43 | HANDSFREE_MDL – Handsfree Module SW_ROW2_HTD_SEAT – Switch Row 2 Heated Seat |
| 44 | SRR_LRR_REAR – Short Range Radar/Long Range Radar Rear SRR_LRR_FRT – Short Range Radar/Long Range Radar Front |
| 45 | RFA – Remote Function Actuator UPA_APA_SBZA – Ultrasonic Park Assist/Advance Park Assist/Side Blind Zone Alert |
| 46 | AERO_SH – Aero Shutter PFA_MDL – Pedestrian Friendly Alert Module |
| 47 | ACP2_FCM – Advance Driver Assistance Systems Compute Platform 2/Front Camera Module AFL_AHL – Adaptive Forward Lighting/Automatic Headlight Leveling |
| 48 | PWR_TGATE – Power Tailgate |
| 49 | Grille Emblem |
| 50 | MTR_WDW_LIFTER_LT – Motor Window Lifter Left |
| 51 | CARGO_APO – Rear Cargo Auxiliary Power Outlet |
| 52 | MTR_WDW_LIFTER_RT – Motor Window Lifter Right |
| 53 | Driver Wiper Control |
| 54 | MSM_DRVR – Memory Seat Module Driver |
| 55 | - |
| 56 | - |
| 57 | EBCM_1 – Electronic Brake Control Module 1 |
| 58 | EUROPE_TRLR – Europe Trailer |
| 59 | CO_DR_WIPER MTR – Passenger Wiper Motor |
| 60 | Horn |
| 61 | Rear Defog |
| 62 | TRLR INTERFACE MDL2 – Trailer Interface Module 2 |
| 63 | MTR_S/ROOF – Motor Sunroof/Sunshade |
| 64 | DCAC INV MDL – DC/AC Inverter Module |
| 65 | PWR_SEAT_CO DRVR – Power Seat Passenger |
| 66 | CRFM – Condenser Radiator Fan Module |
| 67 | WPR_DE_ICE – Wiper De-Ice |
| 68 | SPARE |
| 69 | SPARE |
| 70 | Relay Coil |
| 71 | REAR_HTD_SEAT 2 – Rear Heated Seat 2 |
| 72 | FRONT_HTD_SEAT 1 – Front Heated Seat 1 |
| 73 | TRLR PRK LAMP – Park Trailer Light |
| 74 | TIM_BATT_SRC1 – Trailer Interface Module Battery Source 1 |
| 75 | SPARE |
| 76 | SPARE |
| 77 | SPARE |
| 78 | TRLR_ST_TURN_LT – Trailer Stop Turn Left TRLR_ST_TURN_RT – Trailer Stop Turn Right |
| 79 | REAR_HTD_SEAT1 – Rear Heated Seat 1 |
| 80 | FRONT_HTD_SEAT2 – Front Heated Seat 2 |
| 81 | - |
| 82 | Wash Pump |
| 83 | - |





