CAR SPEC SHEET

Cadillac CTS-V Fuse Box: What Each Fuse Does

From the 2015 Cadillac CTS-V owner's manual. 2 fuse boxes listed.

Engine Compartment Fuse Block

FuseCircuit
11Not Used
19Antilock Braking System (ABS)
22Display
23Sunroof
24Body Control Module 1
25Automatic Forward Lighting System (HID Only)
26Body Control Module 5
27Body Control Module 4
28Navigation Motor
29Not Used
30Transmission Control Module Battery
31Horn
33Not Used
34Pedestrian Protection System
35Body Control Module 3
36Body Control Module 2
38Headlamp Washer (HID Only)
40Not Used
41Air Conditioning Compressor Clutch
43Left Daytime Running Lamps (HID)
46Left High-Beam Headlamp
47Right High-Beam Headlamp
50Right Daytime Running Lamp, Windshield Washer Pump
51Airbag System Ignition Switch
52Engine Control Module Ignition, Transmission Control Module Ignition
54Power Moding (Immobilizer Module, Ignition Switch)
55Intercooler Pump
56Windshield Wipers
57Right Low-Beam (HID Only)
58Left Low-Beam (HID Only)
59Right Daytime Running Lamp (HID Only)
60Instrument Panel Auxiliary Power Outlet
61Air Quality Sensor, Inside Rear View Mirror, Rear Camera
62Ignition
64Steering Wheel Illumination
65Front Fog Lamps (HID Only)
69Body Control Module 6, Body Control Module 7
70Emissions 1
71Even Ignition Coils
72Odd Ignition Coils
73Emissions 2
74Engine Control Module
75Not Used
76Spare
77Spare
78Spare
79Spare
80Spare
81Spare
6Cooling Fan 2
7Cooling Fan 1
8Starter
9Not Used
10Antilock Brake System Motor
13Not Used
14Electric Parking Brake
15Not Used
16Not Used
17Blower Motor
18Rear Window Defogger
37Magnetic Ride/ Suspension Control
1Cooling Fan 2
2Cooling Fan 1
3Starter
4Rear Window Defogger
5Instrument Panel Auxiliary Power Outlet
12Horn
20Headlamp Washer (HID Only)
21Cooling Fan (Series/ Parallel)
32Air Conditioning Compressor Clutch
39Windshield Washer Pump
42Right Daytime Running Lamp
44Left Daytime Running Lamp (HID)
45Front Fog Lamps (HID Only)
48High-Beam Headlamps
49Low-Beam Headlamps (HID)
53Not Used
63Main Ignition
66Windshield Wipers
67Powertrain
68Windshield Wipers High Speed

Source: owner's manual, PDF pages 245, 246, 247.

Rear Compartment Fuse Block

Location: On top of the battery, on the right side of the trunk

FuseCircuit
5Stop Lamps
6Door Lock
7Door Unlock
8Fuel Door Unlock
9Right Position Lamp (Export Only)
10Console/Auxiliary Power Outlet
11Sedan Trunk Release/Coupe Rear Fog
12Side Marker Lamps
13Left Position Lamps
14Right Position Lamp
15Left Position Lamp
16Door Lock
17Console/Auxiliary Power Outlet
18Rear Fog Body Control Module
19Trunk Release
20Easy Entry Seats
21Fuel Pump
22Right Position Lamp
23Regulated Voltage Control Sensor
24Audio System (Radio)
25Airbag System
26Remote Keyless Entry/PASS-Key® Theft Deterrent Module
27Audio Speakers/ Subwoofer
28OnStar® System (If Equipped)
29Engine Control Module
30Canister Vent
31Rear Differential Cooling Pump
33Stop Lamps
34Theft Deterrent System/Universal Garage Door Opener
35Memory Seat Module
36Passenger Door Module
38Side Blind Zone Alert
39Amplifier
1Driver Power Seat Switch
2Passenger Power Seat Switch
3Power Windows
4Power Steering Column
32Left Rear Window Switch
37Right Rear Window Switch

Source: owner's manual, PDF pages 248, 249.

Listings are copied as text from the manual's fuse tables (AI-assisted; every circuit name was matched against the cited pages 2026-10-18). Fuse layouts can differ by trim and year; check the label on the fuse box cover before replacing a fuse, and always use the same amp rating.

Confirm with your own manual, dipstick or door-jamb label.
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