Fuses and Fuse Box: 2019 Cadillac XTS Fuse Diagram and Details
The advanced electrical system in the 2019 Cadillac XTS is protected by a full fuse box setup. As the nerve center for the car’s electrical parts, the fuse box keeps the car safe from electrical problems and damage that could happen. In the event of a power surge or short circuit, the fuses inside the box will break the circuit as a sacrifice, stopping any further damage. This complicated system makes sure that all of the Cadillac XTS’s features work together smoothly. This includes basic features like the lights and windows, as well as more advanced electronic systems. Modern car technology and careful safety measures in the fuse box work together to show that this luxury sedan is dedicated to reliability and performance.
2023 Cadillac XT5 Specs, Price, Features, Mileage (Brochure)
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 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. The 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-coloured 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 of 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 airflow 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 seat – driver-side |
| 16 | – |
| 17 | Sunshade/Ventilated 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 parking 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 | Taillamp – driver side |
| 37 | Right high beam headlamp |
| 38 | Left high beam headlamp |
| 39 | Taillamp – 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 mirror/Rear vision camera |
| 54 | HVAC/Reflective LED alert display |
| 55 | Driver and passenger door switch/Outside rearview mirror switch/Mirror memory module |
| 56 | Windshield washer |
| 57 | – |
| 58 | – |
| 59 | – |
| 60 | Heated outside mirror |
| 61 | – |
| 62 | Front seat 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 | Taillamps/Parking 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’s 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.
2023 Cadillac XT5 Specs, Price, Features, Mileage (Brochure)
| 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 | – |
| 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
A fuse box is a component in a vehicle that houses electrical fuses, which protect the vehicle’s electrical circuits from overloads.
The fuse box in a Cadillac XTS 2019 is typically located under the dashboard on the driver’s side or in the engine compartment.
To access the fuse box, you may need to remove a cover panel.
Fuses are safety devices designed to protect electrical circuits from excessive current flow. They will blow (break the circuit) if there’s a power surge, preventing damage to the vehicle’s electrical components.
You can visually inspect a fuse to see if the metal strip inside is intact. If it’s broken, the fuse is blown. Alternatively, you can use a multimeter to test for continuity.
Typically, you only need a pair of needle-nose pliers or a fuse puller tool. Some fuse boxes also have spare fuses stored inside.
Yes, replacing a blown fuse is a simple task that most car owners can do themselves.
Always replace a fuse with one of the same rating (amperage) to ensure proper protection.
It’s not advisable to replace a fuse with one of a different rating. If you don’t have the correct fuse, it’s best to obtain one before attempting a replacement.
Yes, the Cadillac XTS 2019 may use blade fuses or cartridge fuses, depending on the specific electrical components.
It’s not recommended to substitute a fuse with a circuit breaker. Fuses are designed to provide precise protection for electrical circuits.
Always disconnect the battery before working with fuses to prevent electrical shocks or damage to the vehicle’s electrical system.
It’s a good idea to check the fuses periodically, especially if you’re experiencing electrical issues with your vehicle.
Useful Link:
View full PDF: Cadillac XTS 2019 User Manual | Auto User Guide
2023 Cadillac XT5 Specs, Price, Features, Mileage (Brochure)
Indicator lights: Cadillac XTS 2019 Instrument Cluster Guide