2024 GMC Yukon Fuse Box Diagram & Amperage

As an ASE-certified master technician, I know that a blown fuse can bring your 2024 GMC Yukon to a standstill. Electrical gremlins can be frustrating, but many are simple fixes. Before you spend money on a diagnostic fee, it's worth checking your fuses. This guide will help you locate your Yukon's fuse boxes, identify the right fuse, and get you back on the road.

Quick Answer: Fuse Box Locations

The 2024 GMC Yukon has three primary fuse box locations:

1. Engine Compartment Fuse Box: Located on the driver's side of the engine bay, near the battery.
2. Instrument Panel Fuse Box: Located on the driver's side of the dashboard, accessible when the driver's door is open.
3. Rear Cargo Area Fuse Box: Located in the rear cargo area on the driver's side, behind an access panel.

IMPORTANT: Fuse layouts can vary based on your Yukon's specific trim level (SLE, SLT, AT4, Denali) and optional equipment. Always verify fuse and relay locations by checking the diagram printed on the inside of the fuse box cover or in your owner's manual.

Engine Compartment Fuse Box

This main fuse box houses high-amperage fuses and relays that control critical engine and chassis systems. To access it, open the hood and locate the black plastic box on the driver's side. Press the tabs on the lid to remove it.

Relay Locations (Common Relays)

• R2: Starter Relay
• R5: Fuel Pump Relay
• R8: A/C Clutch Relay
• R12: Blower Motor Relay

Instrument Panel Fuse Box

This fuse box is located on the side of the driver's instrument panel. Open the driver's door fully to see the access panel. Use a trim removal tool or a flat-head screwdriver to gently pry it open. This panel primarily contains fuses for interior electronics and controls.

Rear Cargo Area Fuse Box

Found in the rear of the Yukon on the driver's side, this box supports rear-body and chassis functions. You'll find an access panel in the cargo area trim; remove it to access the fuses.

How to Test a Fuse

If a component stops working, the fuse is the first place to look. You'll need a fuse puller (often included in the fuse box lid) or a pair of needle-nose pliers.

1. Turn the ignition off. Never pull fuses with the vehicle running.
2. Locate the suspect fuse using the diagrams above and verifying with your fuse box lid.
3. Remove the fuse. Pull it straight out.
4. Visually Inspect It: Hold the fuse up to the light. Inside the plastic body is a small metal strip. If that strip is broken or looks burnt, the fuse is blown and needs to be replaced.
5. Confirm with a Multimeter (Recommended): For a 100% certain test, set a multimeter to the continuity setting (it often has a sound symbol). Touch the two metal probes to the two metal tabs on top of the fuse. If the multimeter beeps, the fuse is good. If it is silent, the fuse is blown.

Crucially, always replace a blown fuse with a new one of the exact same amperage rating. Using a higher-rated fuse can cause a fire by allowing too much current through a circuit, overheating the wiring.

Common Blown Fuses on the 2024 GMC Yukon

While any fuse can blow, some are more common than others based on the circuits they protect.

• Blown Fuse: 12V Power Outlet / Cigar Lighter

  • Why it happens: This is the most common blown fuse on any modern vehicle. Faulty phone chargers, loose plugs, or inserting a metal object into the socket are typical culprits. The fuse is designed to be the weak link to protect the vehicle's wiring.
  • What to check first: Unplug everything from all 12V outlets. Replace the fuse. If it blows again immediately, you have a short in the socket itself. If it works, test your accessories one by one to find the faulty device.

• Blown Fuse: Trailer Towing / Brake Controller

  • Why it happens: The wiring on trailers is often the cause. A frayed wire on the trailer's harness can short to the trailer frame, blowing the fuse in your Yukon. This is a safety feature to prevent electrical damage.
  • What to check first: Disconnect the trailer. Replace the fuse in your Yukon. If it doesn't blow, the problem is almost certainly in the trailer's wiring. Inspect the trailer harness and lights for damage.

Electrical diagnosis can seem complex, but understanding your Yukon's fuse system is a powerful first step in troubleshooting. For more complex issues or if you're ever in doubt, don't hesitate to seek professional help.

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