2021 Buick Enclave Fuses and Fuse Box | How to replace fuses
The fuses and fuse box of the Buick Enclave 2021 are vital safety features for the electrical system. The fuse box, which is usually found under the dashboard or in the engine compartment, contains a variety of fuses with different amperage ratings. These fuses are essential for shielding the electrical systems of the car from overloads and other electrical problems. A fuse will blow in a circuit when it draws too much current, protecting the linked part from harm. Fundamentally, the fuse box of the 2021 Buick Enclave is an essential part that guarantees dependability and safety, making it easier to identify and fix electrical problems and enabling the smooth operation of numerous car systems.
2023 Buick Enclave Specs, Price, Features, Mileage (Brochure)
Electrical System
High Voltage Devices and Wiring
Warning
Exposure to high voltage can cause shock, burns, and even death. The high-voltage components in the vehicle can only be serviced by technicians with special training. High-voltage components are identified by labels. Do not remove, open, take apart, or modify these components. High voltage cable or wiring has orange covering or labels. Do not probe, tamper with, cut, or modify high voltage cable or wiring.
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.
Warning
Installation or use of fuses that do not meet GM’s original fuse specifications is dangerous. The fuses could fail, and result in a fire. You or others could be injured or killed, and the vehicle could be damaged.
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
The underhood fuse block is in the engine compartment, on the driver side of the vehicle.
Caution
Do not pull the engine compartment fuse block lever, since it is intended only for service purposes. If pulled, vehicle malfunction may occur.
To remove the fuse block cover, press the 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.
To remove fuses, use the fuse puller and pull straight out.
The vehicle may not be equipped with all of the fuses, relays, and features shown.
Fuses Usage
- F1 Antilock brake system pump
- F2 Starter 1
- F3 DC DC transformer 1
- F4 –
- F5 DC DC transformer 2
- F6 –
- F7 –
- F8 –
- F9 Vacuum pump
- F10 Front wiper
- F11 –
- F12 –
- F13 Starter 2
- F14 –
- F15 Rear wiper
- F16 –
- F17 –
- F18 –
- F19 –
- F20 –
- F21 –
- F22 Electronic brake control module
- F23 Parking/Trailer lamps
- F24 Right trailer stoplamp/ Turnlamp
- F25 Steering column lock
- F26 –
- F27 Left trailer stoplamp/ Turnlamp
- F28 –
- F29 –
- F30 Washer pump
- F31 –
- F32 Left low–beam headlamp
- F33 Daylight running lamps
- F34 Horn
- F35 –
- F36 –
- F37 Right low–beam headlamp
- F38 Automatic headlamp levelling motor
- F39 Transmission control module
- F40 Left rear bus electrical centre/Ignition
- F41 Instrument cluster
- F42 Heating, ventilation, and air conditioning
- F43 Head-up display/ Reflective light auxiliary display
- F44 Communication gateway module/Run/ Crank
- F45 –
- F46 –
- F47 –
- F48 –
- F49 Interior rearview mirror
- F50 Fuel system control module/Shifter interface board/Run/Crank
- F51 Heated steering wheel
- F52 Folding seats switch
- F53 Coolant pump
- F54 –
- F55 Air conditioning clutch
- F56 –
- F57 Engine control module/ Ignition
- F58 Transmission control module/Ignition
- F59 Engine control module battery
- F60 Engine control module – even
- F61 O2 sensor 1/Air flow
- F62 –
- F63 O2 sensor 2/Canister/ Engine oil/Turbo
- F64 Aeroshutter
- F65 Engine control module powertrain 1
- F66 Engine control module powertrain 2
- F67 Engine control module – odd
- F68 –
- F69 –
- F70 –
- F71 –
- F72 –
- F73 –
- F74 –
- F75 –
- F76 –
- F77 –
Relays Usage
- K1 Starter 1
- K2 Run/Crank
- K3 Vacuum pump
- K4 –
-
K5 Air conditioning
-
K6 –
-
K7 Engine control module
- K8 Folding seats
- K9 –
- K10 Starter 2
2023 Buick Enclave Specs, Price, Features, Mileage (Brochure)
Instrument Panel Fuse Block
The instrument panel fuse block is inside the center console on the passenger side of the vehicle. Remove the fuse access door by pulling the door at the opening.
To remove a fuse, use the fuse puller in the engine compartment fuse block.
The vehicle may not be equipped with all of the fuses, relays, and features shown.
- F1 Body control module 6
- F2 Diagnostic link
- F3 Electric steering column lock
- F4 Rear USB port
- F5 Rear sunshade/Park/ Reverse/Neutral/ Drive/Low
- F6 Heating, ventilation, and air conditioning
- F7 Body control module 3
- F8 Adaptive front lighting system
- F9 Right front heated seat
- F10 Airbag
- F11 –
- F12 Amplifier
- F13 Body control module 7
- F14 Left front heated seat
- F15 –
- F16 Sunroof
- F17 Communication gateway module
- F18 Instrument cluster/Head up display
- F19 Body Control Module 1
- F20 Wireless charger module
- F21 Body Control Module 4
- F22 Infotainment
- F23 Body Control Module 2
- F24 Park/Reverse/Neutral/ Drive/Low
- F25 Park assist/Shifter interface board
- F26 Communications integration module
- F27 Video
- F28 Radio/Heating, ventilation, and air conditioning display
- F29 Radio
- F30 Steering wheel controls
- F31 Front blower
- F32 DC AC inverter
- F33 Driver power seat
- F34 Passenger power seat
- F35 Feed/Body Control Module 4
- F36 Electric power steering
- F37 Power outlet/Wireless charger/Accessory
- F38 Body control module 8
- F39 Steering wheel controls backlighting
Circuit Breakers/ Minifuse Usage
- F40 –
- F41 –
- F42 Auxiliary power outlet (CB)/Lighter (minifuse)
Rear Compartment Fuse Block
The rear compartment fuse block is behind a trim panel on the driver side of the rear storage compartment. The trim panel is removed by prying along the top edge of the trim panel at two notched locations. Remove the trim panel to access the fuse block, or see your dealer. To remove a fuse, use the fuse puller in the engine compartment fuse block. The fuse block label is on the back of the access door in the driver side rear trim panel.
Fuses Usage
- F1 –
- F2 Trailer
- F3 Folding seats
- F4 Rear blower
| Fuses | Usage | Fuses | Usage | Fuses | Usage |
| F5 | Rear drive control | F23 | – | F40 | Memory seat module |
| F6 F7
F8 |
–
Right window Rear defogger |
F24 F25
F26 |
Lumbar
– Trailer brake lamps |
F41
F42 |
Automatic occupancy sensor
– |
| F9 | Left window | F27 | Massage | F43 | – |
| F10 F11 F12 | –
Trailer reverse USB port/Third row |
F28
F29 |
Passive entry/Passive start
– |
F44
F45 F46 |
–
Liftgate motor Rear heated seats |
| seats | F30 | Canister vent | F47 | – | |
| F13 | – | F31 | – | F48 | – |
| F14 | – | F32 | Heated mirrors | F49 | – |
| F15 F16
F17 |
–
– –/Air quality sensor |
F33
F34 |
USB port/Second row seats
Liftgate module |
F50 F51
F52 |
–
– Semi-active dampening |
| F18 F19 | –
Ventilated seats/ |
F35 | Fuel system control
module/Fuel tank zone module. |
F53 |
system module
– |
|
F20 F21 F22 |
Massage
– – – |
F36 F37 F38 F39 | –
– Window module Rear closure |
F54
F55 |
External object
calculating remote system/Side blind zone alert – |
- F56 Universal remote system/Overhead console
- F57 Hands-free closure release
Circuit Breakers Usage
- CB1 –
- CB2 –
- CB3 Rear auxiliary power outlet
Relays Usage
- K1 –
- K2 –
FAQs
The fuse box in the 2021 Buick Enclave serves to protect the vehicle’s electrical components from damage due to electrical overloads or faults.
The fuse box is typically located in the engine compartment or beneath the dashboard on the driver’s side. Consult your owner’s manual for the precise location.
To access the fuse box, follow the instructions provided in your owner’s manual, as the location may vary depending on the trim and model.
The 2021 Buick Enclave may use various fuse sizes, typically ranging from 5 to 30 amps. Refer to your owner’s manual or the fuse box cover for specific details.
Yes, you can replace fuses on your own. It’s a straightforward DIY task, but it’s essential to follow the correct procedures outlined in the owner’s manual.
A blown fuse can often be identified by a visible break in the wire or a darkened appearance. A multimeter can also be used to test for continuity.
Fuses can blow due to electrical faults, circuit overloads, or malfunctions in connected components.
If a fuse keeps blowing, it’s crucial to consult your dealership or a qualified technician to diagnose and address the underlying issue causing the repeated fuse failures.
Some vehicles may come with spare fuses included. Refer to your owner’s manual or the fuse box cover to check if your 2021 Buick Enclave has spare fuses.
No, it is not recommended to use a higher amp-rated fuse, as it may lead to electrical problems and damage. Always replace with the same amp-rated fuse.
The trip function on a blown fuse resets automatically when you replace the blown fuse with a new one of the correct rating.
When working with fuses, it’s essential to disconnect the vehicle’s battery and adhere to safety guidelines to avoid electrical shocks.
Adding extra fuses is not recommended, as it may overload the electrical system and cause damage.
Fuses protect various components, including headlights, power windows, radio, air conditioning, and more.
To prevent blown fuses, avoid overloading circuits, check for faulty components, and perform regular vehicle maintenance.
Useful Link
Download Manual: Buick Enclave 2021 User Manual
2023 Buick Enclave Specs, Price, Features, Mileage (Brochure)
2021 Buick Enclave Instrument Cluster | How to use