Cadillac XT4 (2019-2020..) fuses and relays



The subcompact luxury crossover SUV Cadillac XT4 is available from 2019 to the present. In this article, you will find fuse box diagrams of Cadillac XT4 2019 and 2020, get information about the location of the fuse panels inside the car, and learn about the assignment of each fuse (fuse layout) and relay.

Fuse Layout Cadillac XT4 2019-2020…

Cigar lighter (power outlet) fuses in the Cadillac XT4 is the fuses F5 (Auxiliary power outlet – cargo), F37 (Auxiliary power outlet – front), F43 (Auxiliary power outlet – console (circuit breaker)) and F44 (Auxiliary power outlet – console) in the Instrument panel fuse box.

Fuse box location

Passenger compartment

The fuse box is located on the driver’s side of the instrument panel behind the cover.The location of the fuses in the passenger compartment: Cadillac XT4 (2019)

To access, remove the panel, starting at the top. Once clips are disengaged, the tabs along the bottom of the door can be disengaged from the instrument panel to remove the door.

To reinstall the door, place the bottom tabs into the slots, and rotate the door into position, engaging the clips.

Engine compartment

The location of the fuses in the engine compartment: Cadillac XT4 (2019)

Fuse box diagrams


2019, 2020

Instrument panel fuse block

Instrument panel fuse box diagram: Cadillac XT4 (2019)

Assignment of the fuses and relays in the instrument panel (2019, 2020)
F1Left power window
F2Right power window
F3Not Used
F4DC DC battery 2/1
F5Auxiliary power outlet – cargo
F6Heated seat battery 1
F7Heated seat battery 2
F8Body control module 3
F9Electric parking brake switch
F10Body control module 2 (stop/start)
F11Not Used
F12Not Used
F13Not Used
F14Not Used
F15Transmission control module (stop/start)
F17Not Used
F18Video processing module
F19Power steering column
F20Body control module 6
F21Body control module 4
F22Body control module 7
F23Electric steering column lock
F25Data link connector
F26Not Used
F27Not Used
F28Not Used
F29 Body control module 8
F30 Overhead console
F31 Steering wheel control
F32 Not Used
F33 Heating ventilation/Air conditioning
F35 Heated switch
F36 Charger
F37 Auxiliary power outlet – front
F38 OnStar
F39 Display
F40 Obstacle detection
F41 Body control module 1 (stop/start)
F42 Radio
F43 Auxiliary power outlet – console (circuit breaker)
F44 Auxiliary power outlet – console
K1Not Used
K2Retained accessory power
K3Not Used
K4Not Used
K5Not Used


Engine compartment fuse block

Under-hood fuse box diagram: Cadillac XT4 (2019-2020)

Assignment of the fuses and relays in the engine compartment (2019, 2020)
3Antilock brake system pump
52019: Not Used
2020: Trailer brake
6Rear closure
7Trailer stop/Turn LH
8Memory seat module
9Pedestrian friendly alert function
10Semi-active damping system
112019: DC-DC Battery 1
2020: DC-DC Battery 1/2
12Rear defogger
13Heated mirror
14Not Used
15Passive entry passive start
16Front wiper
17Passenger power seat
18Power liftgate module
19Driver power seat
22Rear wiper
232019: Auto headlamp leveling/Canister vent solenoid
2020: Trailer interface module 2
26Transmission control module/Ignition
27Instrument panel body/Ignition
28Rear wiper
292019: Seat ventilation
2020: Trailer ignition
30Malfunction indicator lamp
32Rear drive control module 1
33Front heated seat
34Handsfree/Window switch
352019: Not Used
2020: Diesel exhaust fuel heater
36Fuel module
40Steering column lock
41Not Used
43Heated steering wheel
44Not Used
46Engine control module/Ignition
48Rear drive control module 2
49Heating ventilation/ Air conditioning blower motor
50Not Used
51Not Used
54Not Used
55Not Used
56Starter motor
57Not Used
58Not Used
59High-beam headlamps
602019: Not Used
2020: Trailer interface module 1
61Not Used
62Not Used
63Not Used
65Air conditioning control
67Not Used
68Not Used
69Not Used
70Trailer park lamp
72Starter pinion
75Engine control module
76Powertrain off engine
79Washer pump
81Transmission control module/Engine control module
822019: Not Used
2020: Nitrogen oxide sensor
83Ignition coil
84Powertrain on engine
872019: Not Used
2020: Diesel fuel heater 1
892019: Not Used
2020: Selective catalytic reduction module
92Trailer stop/Turn right
932019: Not Used
2020: Automatic headlamp leveling/Canister vent solenoid
952019: Not Used
2020: Smart sensors
962019: Not Used
2020: Diesel fuel heater 2
99Not Used
4Not Used
20Rear defogger
25Front wiper control
37Front wiper speed
42Not Used
64Starter motor
71Trailer park lamp
73Air conditioning control
80Starter pinion
902019: Not Used
2020: Powertrain sensor
942019: Not Used
2020: Diesel exhaust fuel heater
982019: Not Used
2020: Diesel fuel heater