The Cadillac XT6, produced between 2020 and 2022, is a luxury midsize SUV renowned for its spacious interior, advanced technology, and smooth performance. Within its electrical system, the fuse box and relay play crucial roles in ensuring seamless operation.

The fuse box in the Cadillac XT6 houses multiple fuses, each designed to protect specific electrical circuits from overcurrent situations. These circuits power essential components such as the engine control module, lighting systems, entertainment features, and climate control.

Relays, functioning as electrically operated switches, manage high-current circuits in the XT6. They facilitate the activation of critical functions like the starter motor, air conditioning compressor, and power windows. This ensures efficient power distribution and optimal performance across various vehicle systems.

Regular inspection and maintenance of the fuse box and relays are essential to prevent potential electrical failures and ensure uninterrupted operation of the Cadillac XT6. Monitoring fuse conditions and checking relay connections help maintain reliability and contribute to a seamless driving experience in this luxury SUV.

MUST READ: DYI – How to Check Car Fuses?

(2020-2022) Cadillac XT6 fuse box and relay with Diagram

WARNING

  • Never replace a fuse with one that has a higher amperage rating.
  • A fuse with a too-high amperage could damage the electrical part and cause a fire.
  • On no account should fuses be repaired (e.g. patched up with tin foil or wire) as this may cause serious damage elsewhere in the electrical circuit or cause a fire.
  • If a fuse blows repeatedly, do not keep replacing it. Instead, have the cause for the repeated short circuit or overload tracked and fixed.
  • Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Cadillac XT6 2020-2022 fuse assignment

  • Cigar lighter (power outle) fuses in the Cadillac XT6 are the fuses F37, F42 in the Passenger compartment fuse box, and circuit breaker CB3 (Rear auxiliary power outlet) in the Luggage compartment fuse box.

Year of production: 2020, 2021, 2022

Passenger compartment

The location of the fuses in the passenger compartment: Cadillac XT6 (2020-...)
The location of the fuses in the passenger compartment: Cadillac XT6 (2020-…)

It is located in the central console under the glove box.
To access, open the fuse panel door, or remove the panel by pulling it out.

Engine compartment

The location of the fuses in the engine compartment: Cadillac XT6 (2020-...)
The location of the fuses in the engine compartment: Cadillac XT6 (2020-…)

To remove the cover, press the clips on the cover and lift it straight up.

Fuse Box in the luggage compartment

The location of the fuses in the trunk: Cadillac XT6 (2020-...)
The location of the fuses in the trunk: Cadillac XT6 (2020-…)

It is located on the left side of the trunk, behind the lower trim panel.
To access it, remove the center cargo bin then small side bin.

Fuse box diagrams

Passenger compartment

Interior fuse box diagram: Cadillac XT6 (2020-...)
cadillac xt6 2020 instrument cluster fuse box diagram

Assignment of the fuses in the Passenger compartment

Description
F1Body control module 6
F2Diagnostic link/ Central gateway module
F3Electric steering column lock
F4Not Used
F5Logistics
F6Heating, ventilation, and air conditioning
F7Body control module 3
F8Not Used
F9Right front heated seat
F10Airbag/Seat belt
F112022: Driver Monitoring System Module
F12Amplifier 2
F13Body control module 7
F142020-2021: Left front heated seat
F15Instrument panel switch bank
F16Sunroof
F17Body control module 1
F18Instrument cluster/ Head up display
F19Not Used
F20Rear seat entertainment
F21Body control module 4
F22Infotainment/ USB data/ Aux jack
F23Body control module 2
F24USB charger/ Wireless charging
F25Park assist/ Electronic shift select
F26CIM
F27Video/ Night vision module
F28Heating, ventilation, and air conditioning display
F29Radio
F302020-2021: Steering wheel adjustment controls
F31Electric brake boost
F32DC AC inverter
F33Driver power seat
F34Passenger power seat
F35Battery IEC 1 feed
F36Electric power steering
F37Rear seat entertainment/ USB charge/ Wireless charging module/ Auxiliary power outlet/Lighter
F38Body control module 8
F392022: Steering Wheel Adjustment Controls/ Lightbar
F40Not Used
F41Not Used
F42Auxiliary power outlet / Lighter (Circuit Breaker)

Engine compartment

Assignment of the fuses and relays in the engine compartment

Description
F1Antilock brake system
F2Starter 1
F3DC DC transformer 1
F4Not Used
F5DC DC transformer 2
F6Amplifier 1
F7Blower front
F8Starter 3
F9Not Used
F10Not Used
F11Not Used
F12Front wiper
F13Starter 2
F14Not Used
F15Rear wiper 1
F16Not Used
F17Not Used
F18Automatic headlamp leveling module
F19Not Used
F20Not Used
F21Not Used
F22Electronic brake control module
F23Parking/Trailer lamps
F24Right trailer stoplamp/Turnlamp
F25Steering column lock
F26Not Used
F27Left trailer stoplamp/ Turnlamp
F28Not Used
F29Not Used
F30Washer pump
F31Not Used
F32Headlamp left
F33Not Used
F34Horn
F35Not Used
F36Not Used
F37Headlamp right
F38Not Used
F39Transmission control module 1
F40Left rear bus electrical center/DC DC ignition
F41Instrument cluster
F42Heating, ventilation, and air conditioning/ Central gateway module/Run/Crank
F432020: Head-up display
2021-2022: Head-up Display/ Reflective Light Auxiliary
F44Electronic brake control module electric brake booster/ Run/Crank
F45Not Used
F46Not Used
F47Not Used
F48Rear wiper 2
F492020: Interior rearview mirror
2021-2022: Interior Rearview Mirror/ Trailer/ Rear Heated Seats/ Run/Crank
F50Fuel system control module/ Run/Crank
F51Heated steering wheel
F52Folding seats switch
F532021-2022: Engine Coolant Pump
F542020: Coolant pump
F55Air conditioning clutch
F56Not Used
F57Engine control module/Ignition
F58Transmission control module/Ignition
F59Engine control module battery
F60Not Used
F61O2 sensor 1/ Aeroshutter/Mass air flow sensor
F62Engine control module – odd
F63O2 sensor 2
F64Engine control module – even
F65Engine control module powertrain 1
F66Engine control module powertrain 2
F67Engine control module powertrain 3
F68Not Used
F69Not Used
F70Not Used
F71Not Used
F72Not Used
F73Not Used
F74Not Used
F75Not Used
F76Not Used
F77Not Used
Relays
K1Starter 1
K2Run/Crank
K3Starter 3
K4Not Used
K5Air conditioning
K62020: Coolant pump
K7Engine control module
K8Folding seats
K9Not Used
K10Starter 2

Luggage compartment

Assignment of the fuses and relays in the Rear compartment

Description
F1Not Used
F2Trailer battery 1
F3Driver seat belt motor
F4Rear blower
F5Rear drive control
F6Passenger seat belt motor
F7Right window
F8Rear defogger
F9Left window
F10Folding seats 1
F11Trailer reverse
F12Not Used
F13Not Used
F14Not Used
F15Not Used
F16Not Used
F17Not Used
F182020-2021: Trailer module
2022: Trailer Module/ External Object Calculation Module 2 Ignition
F192020: Ventilated seats
2021-2022: Ventilated seats / Left front heated seats/ Run/Crank
F20Not Used
F21Trailer connector
F22Not Used
F23Not Used
F24Passenger window switch
F25Not Used
F26Trailer brake
F27Not Used
F28Passive entry/Passive start
F292022: Advanced Driver Assist Map Module
F30Canister vent
F31Not Used
F32Heated mirror
F33Not Used
F34Liftgate module
F35Fuel system control module
F36Not Used
F37Not Used
F38Window module
F39Not Used
F40Memory seat module
F41Automatic occupancy sensor
F42Trailer battery 2
F43Not Used
F44Third row seats
F45Liftgate motor
F46Rear heated seats
F47Not Used
F48Glass break sensor
F49Not Used
F50Not Used
F51Not Used
F52Active dampening system module
F532022: External Object Calculating Module 2B/ Camera Image Processing Module
F542020-2021: External object calculating/ Side blind zone alert
2022: External Object Calculating Module 2A/ Side Blind Zone Alert
F55Theft deterrent
F56Universal garage door opener/Rain sensor
F57Folding seats 2
Circuit Breakers
CB1Not Used
CB2Not Used
CB3Rear auxiliary power outlet
Relays
K1Folding seats 1
K2Not Used

Conclusion

For owners and enthusiasts of classic Cadillac XT6 2020-2022, understanding the fuse box and relay systems is essential for vehicle maintenance. Regular inspection and maintenance of these components helped ensure the vehicle’s longevity and reliability, preserving its status as a symbol of Cadillac’s craftsmanship and innovation in the automotive industry during that era.

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