2022 GMC Yukon – Fuse Box Diagram & Amperage

Quick Answer

The 2022 GMC Yukon features three main fuse box locations: under the hood (engine compartment), on the passenger side of the dashboard (kick panel), and in the rear cargo area.

Under-Hood Fuse Box

This fuse box is located in the engine compartment on the driver's side, near the battery. It contains fuses and relays for critical engine functions, lighting, and major electrical components. Always verify the exact fuse layout with the diagram on the fuse box cover.

Relay Locations (Under-Hood):

• R1: Starter Relay
• R2: Fuel Pump Relay
• R3: Run/Crank Relay
• R4: A/C Compressor Relay
• R5: High Beam Headlight Relay
• R6: Low Beam Headlight Relay

Instrument Panel Fuse Box (Passenger Side Kick Panel)

This fuse box is located on the passenger side of the dashboard, behind a removable panel at the kick panel area. It primarily controls interior electrical accessories, infotainment, and convenience features.

Rear Cargo Area Fuse Box

This fuse box is typically located on the driver's side in the rear cargo area, behind a trim panel. It manages electrical components for the rear of the vehicle, including taillights, trailer connections, and rear power accessories.

How to Test a Fuse

Testing a fuse is a straightforward process:

1. Locate the Fuse: Identify the fuse you suspect is blown using the fuse box diagram. Many fuse boxes have a fuse puller tool conveniently stored within.
2. Visual Inspection: Most modern fuses have a clear plastic body, allowing for a visual inspection of the filament. If the metal wire inside is broken or charred, the fuse is blown.
3. Use a Multimeter or Test Light: For a more accurate test, use a multimeter set to continuity mode or a 12V test light.
   • Multimeter: With the fuse removed from its slot, touch the multimeter probes to each metal terminal of the fuse. A good fuse will show continuity (a beep or a reading close to zero ohms). A blown fuse will show no continuity.
   • Test Light: With the fuse still installed and the circuit powered on (e.g., ignition on for an ignition fuse), touch the tip of the test light to the two small metal test points on the top of the fuse. The test light should illuminate on both sides. If it only lights up on one side or not at all, the fuse is blown.
4. Replace (if blown): If a fuse is blown, replace it with a new fuse of the exact same amperage rating and physical type. Never use a fuse with a higher amperage rating, as this can lead to serious electrical damage or fire.

Common Blown Fuses on This Vehicle

While any fuse can blow, some circuits are prone to higher loads or common issues. On the 2022 GMC Yukon, owners may occasionally encounter issues with:

• Cigar Lighter / 12V Power Outlets: These fuses often blow due to overloads from charging multiple devices or using high-power accessories. If your phone charger or other accessories aren't working, check the relevant fuses in the Instrument Panel Fuse Box (F2 and F3).
• Trailer Brake / Trailer Lights: If you frequently tow, the fuses related to trailer connections (Under-Hood F14, and Rear Cargo F1-F3) can blow due to shorts in trailer wiring or overloaded trailer circuits. Always inspect your trailer's wiring if these fuses repeatedly blow.
• Blower Motor: A failing blower motor or obstructions in the HVAC system can cause the blower motor fuse (Under-Hood F4) to blow. If your climate control fan isn't working, check this fuse first. If the new fuse blows immediately, there might be a problem with the blower motor itself.

Always check the easiest things first. Before digging deep into diagnostics, verify that the fuse is truly blown and that the replacement is the correct amperage. Many electrical issues can be resolved with a simple fuse replacement.

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