Replacing Fuses: 2019 GMC Acadia Relay and Fuse Box Diagrams
The relay and fuse box diagrams in the 2019 GMC Acadia show drivers how to replace fuses, which is necessary to make sure that many of the car’s features work properly. You can find out exactly where each fuse is located, how much current it can handle, and what system or part it controls on these models. By looking at these diagrams, drivers can easily find and change blown fuses, which fixes electrical problems and keeps the car running at its best. Also, knowing how the relay and fuse box plans are laid out can help drivers fix electrical problems faster, which can improve their safety and peace of mind on the road.
2023 GMC ACADIA Specs, Price, Features, and 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 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
The underhood fuse block is in the engine compartment, on the driver’s 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. Spilling liquid on any electrical component on the vehicle may damage it. Always keep the covers on any electrical component.
To remove the fuse block cover, press the clips on the cover and lift it straight up. The vehicle may not be equipped with all of the fuses, relays, and features shown.
| Fuse | Usage |
|---|---|
| F1 | Antilock brake system |
| F2 | Starter 1 |
| F3 | DC-DC transformer 1 |
| F4 | – |
| F5 | – |
| F6 | – |
| F7 | DC-DC transformer 2 |
| F8 | Starter 3 |
| F9 | – |
| F10 | – |
| F11 | – |
| F12 | Front wiper |
| F13 | Starter 2 |
| F14 | LED/Automatic headlamp leveling |
| F15 | Rear wiper 1 |
| F16 | – |
| F17 | – |
| F18 | Automatic headlamp leveling module |
| F19 | – |
| F20 | – |
| F21 | – |
| F22 | Electronic brake control module |
| F23 | Parking/Trailer lamps |
| F24 | Right trailer stop lamp/Turn signal lamp |
| F25 | Steering column lock |
| F26 | – |
| F27 | Left trailer stop lamp/Turn signal lamp |
| F28 | – |
| F29 | – |
| F30 | Washer pump |
| F31 | Headlamp low-beam right |
| F32 | Headlamp low-beam left |
| F33 | Fog lamps |
| F34 | Horn |
| F35 | – |
| F36 | Headlamp high-beam left |
| F37 | Headlamp high-beam right |
| F38 | Automatic headlamp leveling motor |
| F39 | Transmission control module 1 |
| F40 | Left rear bus electrical center/Ignition |
| F41 | Instrument cluster |
| F42 | Heating, ventilation, and air conditioning |
| F43 | Head-up display |
| F44 | – |
| F45 | – |
| F46 | – |
| F47 | – |
| F48 | Rear wiper 2 |
| F49 | Interior rearview mirror/Trailer |
| F50 | Fuel system control module |
| F51 | Heated steering wheel |
| F52 | Air conditioning clutch |
| F53 | Transmission range control module |
| F54 | Coolant pump |
| F55 | – |
| F56 | – |
| F57 | Engine control module/Ignition |
| F58 | Transmission control module/Ignition |
| F59 | Engine control module battery |
| F60 | Transmission Control Module 2 |
| F61 | O2 sensor 1/Aeroshutter |
| F62 | Engine control module – odd |
| F63 | O2 sensor 2 |
| F64 | Engine control module – even |
| F65 | Engine control module powertrain 1 |
| F66 | Engine control module powertrain 2 |
| F67 | Powertrain TRCM |
| F68 | – |
| F69 | – |
| F70 | – |
| F71 | – |
| F72 | – |
| F73 | – |
| F74 | – |
| F75 | – |
| F76 | – |
| F77 | – |
| Relay | Usage |
|---|---|
| K1 | Starter 1 |
| K2 | Run/Crank |
| K3 | Starter 3 |
| K4 | LED/Automatic headlamps |
| K5 | – |
| K6 | Coolant pump |
| K7 | Engine control module |
| K8 | Air conditioning |
| K9 | – |
| K10 | Starter 2 |
Instrument Panel Fuse Block
The instrument panel fuse block is inside the center console on the passenger side of the vehicle. See the fuse block cover for specific fuse information. Open the fuse panel door, or remove the panel from the passenger side by pulling it out.
To reinstall the door, push the door back into its original location.
The vehicle may not be equipped with all of the fuses, relays, and features shown.
| Fuse | Usage |
|---|---|
| F1 | Body Control Module 6 |
| F2 | Diagnostic link/Central gateway module |
| F3 | Electric steering column lock |
| F4 | – |
| F5 | Logistics |
| F6 | Heating, ventilation, and air conditioning |
| F7 | Body control module 3 |
| F8 | Head-up display |
| F9 | Front passenger heated seat |
| F10 | Airbag/Seat belt |
| F11 | Electronic precision shift |
| F12 | Amplifier |
| F13 | Body Control Module 7 |
| F14 | Driver heated seat |
| F15 | Instrument panel switch bank |
| F16 | Sunroof |
| F17 | Body control module 1 |
| F18 | Instrument cluster |
| F19 | – |
| F20 | Rear seat entertainment |
| F21 | Body control module 4 |
| F22 | Infotainment USB data/Aux jack |
| F23 | Body control module 2 |
| F24 | USB charger/Wireless charging |
| F25 | Park aid |
| F26 | CIM |
| F27 | Video |
| F28 | Heating, ventilation, and air conditioning display |
| F29 | Radio |
| F30 | Steering wheel adjustment controls |
| F31 | Front blower |
| F32 | DC AC inverter |
| F33 | Driver power seat |
| F34 | Passenger power seat |
| F35 | Battery IEC 1 feed |
| F36 | Electric power steering |
| F37 | Rear seat entertainment/USB charge/Wireless charging module |
| F38 | Body Control Module 8 |
| F39 | – |
| F40 | – |
| F41 | – |
| F42 | Auxiliary power outlet/Lighter |
Rear Compartment Fuse Block
The rear compartment fuse block is behind a trim panel on the driver side of the rear storage compartment.
Remove the side bin, load floor, and foam. Remove the trim plate to access the fuse block. The label for this fuse block is in the spare tire area, on the foam under the cargo floor.
| Fuse | Usage |
|---|---|
| F1 | – |
| F2 | Trailer battery 1 |
| F3 | Driver seat belt motor |
| F4 | Rear blower |
| F5 | Rear drive control |
| F6 | Passenger seat belt motor |
| F7 | Right window |
| F8 | Rear defogger |
| F9 | Left window |
| F10 | – |
| F11 | Trailer reverse |
| F12 | – |
| F13 | – |
| F14 | – |
| F15 | – |
| F16 | – |
| F17 | Camera |
| F18 | Trailer module |
| F19 | Ventilated seats |
| F20 | – |
| F21 | Trailer connector |
| F22 | – |
| F23 | – |
| F24 | Passenger window switch |
| F25 | – |
| F26 | Trailer brake |
| F27 | Driver ventilated seat/Lumbar |
| F28 | Passive entry/Passive start |
| F29 | – |
| F30 | Canister vent |
| F31 | – |
| F32 | Heated mirror |
| F33 | – |
| F34 | Liftgate module |
| F35 | Fuel system control module |
| F36 | Passenger ventilated seat/Lumbar |
| F37 | – |
| F38 | Window module |
| F39 | Rear closure |
| F40 | Memory seat module |
| F41 | Automatic occupancy sensor |
| F42 | Trailer battery 2 |
| F43 | – |
| F44 | – |
| F45 | Liftgate motor |
| F46 | Rear heated seats |
| F47 | – |
| F48 | Glass break sensor |
| F49 | – |
| F50 | – |
| F51 | – |
| F52 | Active dampening system module |
| F53 | Rear parking aid module/Video/USB |
| F54 | External object calculating/Side blind zone alert |
| F55 | – |
| F56 | Universal remote system/Rain sensor |
| F57 | Theft deterrent |
| CB1 | – |
| CB2 | – |
| CB3 | Rear auxiliary power outlet |
| K1 | – |
| K2 | – |
How to GMC Acadia Change Fuse
To change a fuse in a GMC Acadia, follow these steps:
- Locate the Fuse Box: The fuse box in the GMC Acadia is usually located in the engine compartment on the driver’s side or inside the passenger compartment, typically under the dashboard on the driver’s side. It may also be located in the cargo area.
- Turn Off the Ignition: Before you begin, ensure that the ignition is turned off to prevent any electrical hazards.
- Remove the Fuse: Use a fuse puller tool or a pair of needle-nose pliers to grasp and gently pull out the fuse that needs to be replaced. Ensure that you grip the fuse firmly but gently to avoid damaging it or the fuse box.
- Inspect the Fuse: Check the metal strip inside the fuse. If it’s broken or melted, the fuse is blown and needs to be replaced. If the metal strip appears intact, the fuse is still functional, and the issue lies elsewhere.
- Select the Correct Replacement Fuse: Use the same amperage and type of fuse as the one you removed. Using a fuse with a different amperage rating can cause electrical problems or even damage to the vehicle’s wiring system.
- Install the New Fuse: Carefully insert the new fuse into the corresponding slot in the fuse box. Ensure that it fits securely and makes good contact.
- Test the Component: After replacing the fuse, turn on the ignition and test the component or system to ensure that it is functioning properly. If the fuse blows again immediately or shortly after replacement, there may be an underlying electrical issue that needs to be addressed.
Tips:
- Keep spare fuses of various amperages in your vehicle in case of emergencies.
- Regularly check your vehicle’s fuses to identify any blown fuses and address electrical issues promptly.
FAQs
Fuses are safety devices designed to protect electrical circuits from overloading or short circuits. They are crucial in preventing damage to the vehicle’s electrical components.
The fuse box in the 2019 GMC Acadia is typically located in the engine compartment or under the dashboard on the driver’s side.
A blown fuse can often be identified by a broken metal strip inside the fuse or a darkened appearance. However, it’s advisable to use a multimeter for accurate testing.
You typically only need a fuse puller or a pair of needle-nose pliers to safely remove and replace a fuse in the 2019 GMC Acadia.
No, it’s crucial to use the correct type and amperage of fuse specified for your 2019 GMC Acadia to ensure proper functioning and safety.
Accessing the fuse box in the 2019 GMC Acadia typically involves removing a cover panel located either in the engine compartment or under the dashboard.
The colors of fuses generally indicate their amperage rating, with each color corresponding to a specific ampere value.
While visual inspection can sometimes reveal a blown fuse, it’s not always reliable. Using a multimeter to test the continuity of the fuse is a more accurate method.
Fuse box diagrams in the 2019 GMC Acadia typically indicate the location and amperage rating of each fuse, along with its corresponding electrical component.
Before replacing a fuse, it’s essential to turn off the vehicle’s ignition and any relevant electrical components to prevent the risk of electrical shock or damage.
Use a fuse puller or a pair of needle-nose pliers to grasp the blown fuse firmly and gently pull it straight out of its socket.
Align the new fuse with the corresponding socket in the fuse box and gently press it in until it’s fully seated.
Common issues that may necessitate fuse replacement in the 2019 GMC Acadia include malfunctioning electrical components such as power windows, headlights, or interior lights.
To prevent future fuse failures, avoid overloading electrical circuits by using proper accessories and addressing any underlying electrical issues promptly.
Useful Links
View Full PDF: GMC Acadia 2019 User Manual | Auto User Guide
2023 GMC ACADIA Specs, Price, Features, and Mileage (Brochure)