2023 GMC Acadia Fuse Box Diagram & Amperage

Quick Answer

The 2023 GMC Acadia features three main fuse box locations: under the hood (engine compartment), inside the cabin (passenger compartment, typically on the passenger side kick panel), and in the rear cargo area.

Under-Hood Fuse Box

The under-hood fuse box, also known as the Underhood Electrical Center (UEC), is located on the driver's side of the engine compartment, near the battery. This box contains fuses and relays for critical engine functions, lights, and other high-current systems. Always consult the diagram on the fuse box cover for the exact layout for your specific Acadia trim.

Cabin Fuse Box (Passenger Compartment)

The cabin fuse box, also known as the Body Control Module (BCM) fuse box, is located on the passenger side of the vehicle, behind the kick panel. This fuse box handles various interior electrical components and accessories.

Rear Cargo Area Fuse Box

The third fuse box is typically located in the rear cargo area, often on the driver's side behind an access panel. This box primarily serves rear accessories, power outlets, and in some trims, trailer-related circuits.

How to Test a Fuse

Testing a fuse is a straightforward process that can save you a trip to the mechanic. Here's how to do it:

1. Safety First: Ensure your vehicle's ignition is off and disconnect the negative terminal of your battery if you're working on critical circuits to prevent accidental shorts.
2. Locate the Fuse: Identify the suspected fuse using the relevant fuse box diagram.
3. Remove the Fuse: Use a fuse puller (usually found in the fuse box lid or with your vehicle's tools) to carefully remove the fuse. Never use metal tools that could short the circuit.
4. Visual Inspection: Hold the fuse up to a light. A good fuse will have an unbroken metal wire or strip inside. If the wire is broken or melted, the fuse is blown and needs to be replaced.
5. Test with a Multimeter (for less obvious breaks):
   • Set your multimeter to the continuity setting (usually indicated by a symbol that looks like a sound wave or diode). If your multimeter doesn't have continuity, set it to measure ohms (Ω).
   • Touch the two probes of the multimeter to the metal test points on the top of the fuse (or the metal blades if removed). A good fuse will show a reading of "0" or close to "0" ohms (indicating continuity) and often beep if on the continuity setting. A blown fuse will show an "OL" (open loop) or infinite resistance.
6. Replace: If the fuse is blown, replace it with a new fuse of the exact same amperage rating and type. Using a fuse with a higher rating can cause serious electrical damage or even a fire.

Common Blown Fuses on This Vehicle

While any fuse can blow, some are more common than others due to the nature of the components they protect or common user habits.

• Cigar Lighter/12V Power Outlets (Cabin Fuse Box F3, F4, Rear Cargo F1): These fuses are frequently blown due to overloads from charging multiple devices, using high-power accessories, or inserting faulty devices. If your phone charger or portable air compressor suddenly stops working, check these first.
• Blower Motor (Under-Hood F9): The blower motor works hard, especially if frequently run on high or if the cabin air filter is clogged, causing the motor to draw more current. If your fan isn't blowing, this is a prime suspect.
• Radio/Infotainment (Cabin Fuse Box F1): Issues with aftermarket installations, short circuits within the unit, or sometimes even a sudden power surge can lead to this fuse blowing, resulting in no sound or a blank screen.
• Headlights (Under-Hood F5-F8): While less common with modern LED systems, a short in a wiring harness or an issue with the headlight assembly can cause these fuses to blow. If one of your headlights is out, check its dedicated fuse.

Always verify the printed legend in your specific fuse box lid, as fuse layouts can vary slightly by trim level and optional equipment.

Find a trusted shop on Repairius.