2019 GMC Yukon Fuse Box Diagram & Amperage

Quick Answer

Your 2019 GMC Yukon has a total of three fuse boxes: one located under the hood, one inside the cabin on the passenger side kick panel, and another in the rear cargo area.

Under-Hood Fuse Box

The under-hood fuse box is located on the driver's side, near the battery. It houses many of the fuses and relays for critical engine components, lighting, and other high-current systems. Always refer to the diagram on the fuse box lid for the most accurate information regarding your specific trim level.

Instrument Panel Fuse Box (Passenger Side Kick Panel)

The instrument panel fuse box is located on the passenger side of the cabin, behind the kick panel. This fuse box primarily protects interior electrical components, accessories, and infotainment systems.

Rear Cargo Area Fuse Box

Another fuse box is located in the rear cargo area, typically on the driver's side panel. This fuse box often protects rear accessories, trailer wiring, and climate control components.

How to Test a Fuse

Testing a fuse is a straightforward process that can help you identify a blown fuse quickly. Here's how:

1. Safety First: Always turn off the ignition and any affected electrical components before working with fuses.
2. Locate the Fuse: Refer to the fuse box diagrams above and your vehicle's owner's manual to identify the suspected fuse.
3. Visual Inspection: Most modern fuses have a clear plastic body. Look for a broken or burnt wire inside the fuse. If you see a break, the fuse is blown and needs to be replaced.
4. Use a Multimeter or Test Light: For a more accurate test, use a multimeter set to continuity mode or a fuse test light.
   • Multimeter: Touch the probes to the two metal test points on the top of the fuse. A good fuse will show continuity (a beep or a reading close to zero ohms). A blown fuse will show an open circuit (no beep or an "OL" reading).
   • Test Light: With the ignition on (if testing a power circuit) and the light grounded, touch the tip of the test light to each test point on the back of the fuse. If both sides light up, the fuse is good. If only one side lights up, the fuse is blown.
5. Replace with Correct Rating: If a fuse is blown, replace it with a new fuse of the exact same amperage rating and type. Using a fuse with a higher amperage can lead to serious electrical damage or fire.

Common Blown Fuses on This Vehicle

While fuses can blow for various reasons, some circuits are more prone to issues due to their constant use or connection to high-draw accessories. On a 2019 GMC Yukon, you might frequently encounter blown fuses in the following areas:

• Cigar Lighter / 12V Power Outlets (F2, Instrument Panel; F1, Rear Cargo): These fuses are often overloaded by devices plugged into them, especially if they draw more power than the circuit is designed for. Always check these first if your charging ports stop working.
• Headlight Fuses (F5, F6, F7, F8, Under-Hood): Headlight bulbs can fail, but sometimes a short in the wiring or a faulty bulb can trigger a fuse to blow. If one or both of your headlights stop working, these are the fuses to inspect.
• Blower Motor Fuses (F9, Under-Hood; F2, Rear Cargo): Issues with the blower motor, such as a failing motor or a clogged cabin air filter causing it to work harder, can sometimes lead to the respective blower motor fuse blowing. If your HVAC fan isn't working, check these.
• Trailer Brake Control (F12, Under-Hood): If you frequently tow or have issues with your trailer's braking system, this fuse might be susceptible to blowing. Always ensure your trailer wiring is in good condition.

Always remember to check the printed legend on your fuse box lid and your owner's manual for the most accurate and trim-specific information. Fuse diagrams can vary slightly between different trim levels and optional equipment packages.

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