Fuse Diagrams Guide: 2018 Cadillac XTS Fixing a blown fuse
Changing a blown fuse in your 2018 Cadillac XTS is an easy but important way to keep all the electrical parts in your car working properly. Your guide through the complex web of circuits that powers everything from the stereo to the headlights is provided by the fuse box diagram. When troubleshooting electrical problems, knowing how your fuse box is laid out will save you time and aggravation, whether the problem is a flickering dashboard light or a faulty radio. Finding the precise fuse causing the issue requires patience and close attention to detail, much like solving a puzzle. It involves a combination of precision and intuition. But with the information from the fuse box diagram at your disposal, this seemingly impossible operation becomes doable, giving you the ability to take control of your car’s upkeep and guarantee its dependability while driving. So let’s explore the complex world of fuses and solve the puzzles your Cadillac XTS fuse box diagram may be hiding.
2023 Cadillac XT5 Specs, Price, Features, Mileage (Brochure)
Bulb Replacement
For the proper type of replacement bulbs, or any bulb changing procedure not listed in this section, contact your dealer.
LED Lighting
This vehicle has several LED lamps. For replacement of any LED lighting assembly, contact your dealer.
Back-Up Lamps
- Back-Up Bulb Socket
- . Back-Up Lamp Assembly
To replace one of these bulbs:
- Reach under the rear fascia and locate the backup lamp assembly.
- Remove the bulb socket (1) by turning counterclockwise and pulling straight out of the lamp assembly (2).
- Pull the bulb out of the socket.
- Install the new bulb in the bulb socket.
- Install the bulb socket by turning clockwise.
License Plate Lamp
- Bulb Socket
- Bulb
- Lamp Assembly
To replace one of these bulbs:
- Push the lamp assembly (3) toward the right.
- Pull the lamp assembly down to remove.
- Turn the bulb socket (1) counterclockwise to remove it from the lamp assembly (3).
- Pull the bulb (2) straight out of the bulb socket (1).
- Push the replacement bulb straight into the bulb socket and turn the bulb socket clockwise to install it into the lamp assembly.
- Push the lamp assembly back into position until the release tab locks into place.
Electrical System
Electrical System Overload
The vehicle has fuses and circuit breakers to protect against an electrical system overload.
When the current electrical load is too heavy, the circuit breaker opens and closes, protecting the circuit until the current load returns to normal or the problem is fixed. This greatly reduces the chance of circuit overload and fire caused by electrical problems.
Fuses and circuit breakers protect power devices in the vehicle.
Replace a bad fuse with a new one of the identical size and rating.
If there is a problem on the road and a fuse needs to be replaced, the same amperage fuse can be borrowed. Choose some feature of the vehicle that is not needed to use and replace it as soon as possible
Headlamp Wiring
An electrical overload may cause the lamps to go on and off, or in some cases to remain off. Have the headlamp wiring checked right away if the lamps go on and off or remain off.
Windshield Wipers
If the wiper motor overheats due to heavy snow or ice, the windshield wipers will stop until the motor cools and will then restart.
Although the circuit is protected from electrical overload, overload due to heavy snow or ice may cause wiper linkage damage. Always clear ice and heavy snow from the windshield before using the windshield wipers.
If the overload is caused by an electrical problem and not snow or ice, be sure to get it fixed.
Fuses and Circuit Breakers
The wiring circuits in the vehicle are protected from short circuits by a combination of fuses and circuit breakers. This greatly reduces the
chance of damage caused by electrical problems.
Danger
Fuses and circuit breakers are marked with their ampere rating. Do not exceed the specified amperage rating when replacing fuses and circuit breakers. Use of an oversized fuse or circuit breaker can result in a vehicle fire. You and others could be seriously injured or killed.
To check a fuse, look at the silver-colored band inside the fuse. If the band is broken or melted, replace the fuse. Be sure to replace a bad fuse with a new one of the identical size and rating.
Fuses of the same amperage can be temporarily borrowed from another fuse location if a fuse goes out. Replace the fuse as soon as possible.
Engine Compartment Fuse Block
To remove the fuse block cover, squeeze the three retaining clips on the cover and lift it straight up.
Caution
Spilling liquid on any electrical component on the vehicle may damage it. Always keep the covers on any electrical component.
The vehicle may not be equipped with all of the fuses, relays, and features shown.
Fuses Usage
- 1 Transmission control module
- 2 Engine control module
- 3 A/C clutch
- 4 –
- 5 Engine control module/Ignition
- 6 Front wiper
- 7 –
- 8 Ignition coils – even
- 9 Ignition coils – odd
- 10 Engine control module
- 11 Mass air flow sensor/ Post catalytic converter O2 sensors
- 12 Starter
- 13 Transmission control module/Chassis control module ignition
- 14 Rear heated seat passenger side
- 15 Rear heated side driver side
- 16 –
- 17 Sunshade/Vented seats
- 18 Autonet
- 19 –
- 20 –
- 21 Rear power windows
- 22 Sunroof
- 23 Variable effort steering module
- 24 Front power windows
- 25 Retained accessory power
- 26 ABS pump
- 27 Electric park brake
- 28 Rear window defogger
- 29 Passive Entry/Passive start
- 30 Spare
- 31 Heated driver seat
- 32 Stop lamps — center high mounted stop lamp/Backup-reverse
- lamps/Interior
- 33 Heated passenger seat
- 34 ABS valves
- 35 Amplifier
- 36 Tail park lamp — driver-side
- 37 Right high-beam headlamp
- 38 Left high-beam headlamp
- 39 Tail park lamp — passenger side
- 40 Long-range radar
- 41 Brake vacuum assist pump
- 42 Cooling fan high speed
- 43 –
- 44 –
- 45 Cooling fan low speed
- 46 Cooling fan control
- 47 Pre-catalytic converter O2 sensor heater/Canister purge solenoid
- 48 Low-temperature radiator coolant pump
- 49 Right headlamp LED
- 50 Left headlamp LED
- 51 Horn
- 52 Display/Ignition
- 53 Air quality sensor/ Inside rearview mirror/Rear vision camera
- 54 HVAC/Reflective LED alert display
- 55 Driver and passenger door switches/Outside rearview mirror switch/Mirror memory module
- 56 Windshield washer
- 57 –
- 58 –
- 59 –
- 60 Heated outside rearview mirror
- 61 –
- 62 Front seats massage module
- 63 –
- 64 Spare
- 65 Spare
- 66 Trunk release
- 67 Chassis control module
- 68 –
- 69 Battery voltage sensor
- 70 Canister vent solenoid
- 71 Memory seat module
- 72 Electric power steering
Relays Usage
- 1 A/C clutch
- 2 Starter
- 3 –
- 4 Wiper speed
- 5 Wiper control
- 6 –
- 7 Powertrain
- 8 –
- 9 Cooling fan — high speed
- 10 Cooling fan — low speed
- 11 Tail/Park lamps
- 12 –
- 13 Cooling fan control
- 14 Low beam LED headlamps
- 15 Run/Crank
- 16 –
- 17 Rear window and mirror defogger
Instrument Panel Fuse Block
The instrument panel fuse block is in the instrument panel, on the driver side of the vehicle. To access the fuses, open the fuse panel door by pulling down at the top.
Press in on the sides of the door to release it from the instrument panel.
Pull the door toward you to release it from the hinge.
The vehicle may not be equipped with all of the fuses, relays, and features shown.
Fuses Usage
- 1 Wireless charger module/USB charge
- 2 Body control module 7
- 3 Body control module 5
- 4 Radio
- 5 Infotainment display/ Head-up display/ Instrument cluster
- 6 Power outlet 1
- 7 Power outlet 2
- 8 Body Control Module 1
- 9 Body control module 4
- 10 Body control module 8
- 11 Front HVAC blower
- 12 Passenger seat
- 13 Driver seat
- 14 Diagnostic link connector
- 15 Airbag AOS
- 16 Glove box
- 17 HVAC controller
- 18 Logistics
- 19 Front camera
- 20 Telematics (OnStar)
- 21 CGM
- 22 Steering wheel controls/Backlight
- 23 Body control module 3
- 24 Body control module 2
- 25 Power steering column
- 26 AC DC inverter
Relays Usage
- R1 Glove box
- R2 Logistics
- R3 Retained accessory power
Rear Compartment Fuse Block
The rear compartment fuse block is on the left side of the trunk behind a= cover.
The vehicle may not be equipped with all of the fuses, relays, and features shown.
Fuses Usage
- F01 –
- F02 –
- F03 –
- F04 Suspension leveling compressor
- F05 –
- F06 –
- F07 –
- F08 –/Front courtesy lamps/Footwell, puddle lamps
- F09 –
- F10 –
- F11 –
- F12 –
- F13 Spare/MID Power Window
- F14 –
- F15 –/Spare
- F16 –/Video processing module
- F17 –
- F18 Semi-active damping system
- F19 Universal remote system/Rain, light, and humidity sensor
- F20 –/Shunt
- F21 Side blind zone alert
- F22 –
- F23 All wheel drive
- F24 –
- F25 –
- Fuses Usage
- F26 –
- F27 –
- F28 –
- F29 –
- F30 External object calculation module
- F31 Park assist/Lane departure warning/ Lane keep assist
- F32 –
- F33 –
- F34 –
- F35 –
- F36 –
- F37 –
Relays Usage
- K1 –
- K2 Front courtesy lamps/
- Footwell, puddle lamps
- K3 Suspension leveling compressor
- K4 –
FAQs
In the passenger side engine compartment of a 2018 Cadillac XTS lies the fuse box.
The 2018 Cadillac XTS fuse box is located on the passenger side of the engine compartment; to reach it, lift the hood and locate the fuse box lid.
You might require a fuse puller tool or a pair of needle-nose pliers to change a fuse in a 2018 Cadillac XTS.
You can usually find the fuse box diagram for a 2018 Cadillac XTS in the owner’s handbook.
In a 2018 Cadillac XTS, a blown fuse can be recognized by a darkened or burned look or by a break in the metal filament inside the fuse.
Standard blade-type fuses are normally used in the 2018 Cadillac XTS.
Depending on which circuit the fuses in a 2018 Cadillac XTS protect, their amperage rating may change.
In order to avoid damaging the electrical system, it is not advised to replace a fuse in a 2018 Cadillac XTS with one with a greater amperage rating.
Using a fuse puller tool or a pair of needle-nose pliers, carefully grip the blown fuse and pull it straight out of its socket to remove it from the fuse box of a 2018 Cadillac XTS.
To reduce the possibility of electrical shock or damage, it’s crucial to turn off the ignition and all other electrical components in a 2018 Cadillac XTS before changing a fuse.
Auto parts stores or internet merchants usually carry replacement fuses for 2018 Cadillac XTS vehicles.
There is a possibility that certain 2018 Cadillac XTS models have extra fuses in the glove box or fuse box.
A professional mechanic should examine the 2018 Cadillac XTS if a fuse continues blowing because it can indicate an underlying problem with the electrical system.
In most cases, an owner of a 2018 Cadillac XTS can replace a minor fuse; nevertheless, it is preferable to have a professional mechanic look at any persistent problems or concerns regarding the electrical system.
When a 2018 Cadillac XTS fuse is replaced, the fuse box usually doesn’t need to be reset. All you have to do is place the new fuse into the corresponding slot and make sure it is firmly installed.
Useful Links
View Full PDF: 2018 Cadillac XTS Owner’s Manual|Auto User Guide
2023 Cadillac XT5 Specs, Price, Features, Mileage (Brochure)