2025 GMC Yukon Fuse Box Diagram & Amperage
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Quick answer
The 2025 GMC Yukon features multiple fuse box locations to protect its electrical systems. You'll find fuse boxes under the hood, on the passenger side of the dashboard (kick panel), and in the rear cargo area.
Under-Hood Fuse Box
The under-hood fuse box, also known as the under-hood electrical center, is located on the driver's side of the engine compartment, near the battery. It contains fuses and relays for critical engine components, powertrain, and some chassis systems. Always consult the fuse box lid diagram for the most accurate information regarding your specific trim level.
| Fuse # | Amp | Color | Circuit / Component Protected |
|---|---|---|---|
| F1 | 10A | Red | ECM/PCM (Engine Control Module/Powertrain Control Module) |
| F2 | 15A | Blue | Fuel Pump |
| F3 | 20A | Yellow | Ignition Coils / Ignition System |
| F4 | 25A | Clear | Starter Relay |
| F5 | 15A | Blue | Low Beam Headlight (Left) |
| F6 | 15A | Blue | Low Beam Headlight (Right) |
| F7 | 10A | Red | High Beam Headlight (Left) |
| F8 | 10A | Red | High Beam Headlight (Right) |
| F9 | 30A | Green | ABS Module (Anti-lock Braking System) |
| F10 | 10A | Red | A/C Clutch |
| F11 | 40A | Green | Blower Motor |
| F12 | 20A | Yellow | Trailer Brake Controller |
| F13 | 15A | Blue | Transmission Control Module (TCM) |
| F14 | 10A Red | Mass Airflow (MAF) Sensor | |
| F15 | 10A | Red | Oxygen Sensors |
Common Relays in Under-Hood Fuse Box:
- R1 (Fuel Pump Relay): Powers the fuel pump.
- R2 (Starter Relay): Engages the starter motor.
- R3 (Cooling Fan Relay): Controls the engine cooling fan.
- R4 (A/C Compressor Clutch Relay): Activates the A/C compressor clutch.
Instrument Panel Fuse Box (Passenger Side Kick Panel)
The instrument panel fuse box is located on the passenger side of the dashboard, behind a removable panel near the door sill or kick panel. This fuse box typically controls interior electrical accessories, infotainment systems, and some body control functions. Refer to the diagram on the back of the fuse box cover for accurate fuse assignments.
| Fuse # | Amp | Color | Circuit / Component Protected |
|---|---|---|---|
| F16 | 10A | Red | Radio/Infotainment System |
| F17 | 15A | Blue | Power Windows |
| F18 | 20A | Yellow | Blower Motor (Cabin) |
| F19 | 10A | Red | Tail Lights / Parking Lights |
| F20 | 15A | Blue | Brake Lights |
| F21 | 10A | Red | Instrument Cluster |
| F22 | 20A | Yellow | 12V Power Outlet (Front) |
| F23 | 15A | Blue | Airbag System (SIR) |
| F24 | 10A | Red | HVAC Controls |
| F25 | 10A | Red | OnStar/Communication Module |
Rear Cargo Area Fuse Box
The rear cargo area fuse box is typically located on one of the side panels in the trunk or cargo area. This fuse box handles electrical components in the rear of the vehicle, including power outlets, rear climate controls (if equipped), and trailer lights.
| Fuse # | Amp | Color | Circuit / Component Protected |
|---|---|---|---|
| F26 | 20A | Yellow | 12V Power Outlet (Cargo Area) |
| F27 | 15A | Blue | Trailer Lights (Left Turn/Brake) |
| F28 | 15A | Blue | Trailer Lights (Right Turn/Brake) |
| F29 | 10A | Red | Rear HVAC Blower (if equipped) |
| F30 | 10A | Red | Liftgate Module |
How to Test a Fuse
Testing a fuse is a straightforward process that can help diagnose electrical issues. You will need a fuse puller (usually found in one of the fuse boxes) and a multimeter or a fuse tester.
- Locate the suspected fuse: Refer to the fuse box diagram for the circuit you are troubleshooting.
- Turn off the ignition and all electrical accessories.
- Carefully remove the fuse: Use the fuse puller to gently extract the fuse from its slot.
- Visually inspect the fuse: Look for a broken wire or discoloration inside the fuse. A good fuse will have an intact wire.
- Test with a multimeter (optional but recommended): Set your multimeter to continuity mode. Touch the probes to the metal terminals on each end of the fuse. If the multimeter beeps or shows a reading close to zero ohms, the fuse is good. If it shows an open circuit (OL or no reading), the fuse is blown.
- Replace if necessary: 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 amperage can cause severe electrical damage or even a fire.
Common Blown Fuses on This Vehicle
While any fuse can blow, some are more commonly affected due to the high usage or critical nature of the circuits they protect. If you experience an electrical issue, it
Before you pull a fuse on the 2025 GMC Yukon
- Use the label printed on the panel cover or the owner's manual for your exact build. Layouts change with options, model year and build date, so a chart for another truck can be wrong.
- Replace a blown fuse only with the same amp rating. A larger fuse can let wiring overheat.
- A fuse that blows again right away means a short or failing component downstream. Find the cause before replacing it again.
- A good fuse doesn't prove the circuit works — relays, grounds and connectors fail too.
- Disconnect the battery before working near high-current fuses or cables.
Learn more: How fuses, relays and truck electrical systems work
More specs for the 2025 GMC Yukon
Oil Capacity & Filter
Capacity, weight, filter PN, drain plug torque, change interval.
Fluid Type Specs
Engine oil, coolant, ATF, diff, brake, PS, DEF — with OEM spec numbers.
Coolant Capacity & Type
Total system capacity, OEM coolant spec, flush interval, bleed tips.
Transmission Fluid & Service
Trans model, fluid spec, capacity, filter PN, service interval.
Torque Specifications
Lug nuts, drain plug, caliper, axle nut, plug, key fasteners.
Brake Pad & Rotor Specs
Pad PNs, rotor size, min thickness, caliper torque.
Tire Size & Pressure
OEM size, cold psi, bolt pattern, wheel size, TPMS.
Battery Size & Group
Group size, CCA, AGM/flooded, dimensions, reset note.
A/C Refrigerant & Oil
R-134a or R-1234yf, charge oz, PAG oil spec.
Bulb Sizes (Headlight, Tail, Fog)
Headlight, fog, tail, turn, reverse, interior.
Factory Maintenance Schedule
Service intervals by mileage, severe-duty notes, known issues.
Towing Capacity & Payload
Max tow, payload, GVWR/GCWR, hitch class by trim.
Serpentine Belt Routing & Length
Belt routing, length, rib count, OEM + aftermarket PNs.
Wheel Alignment Specifications
Camber, caster, toe ranges (front & rear), adjustability notes.
Paint Color Codes
All factory colors with paint codes, sticker location, touch-up tips.
Wiper Blade Sizes
Driver/passenger/rear blade size, attachment, OEM + cross-refs.
Spark Plug Type & Gap
Plug PN, gap, torque, interval by engine.
Transmission & Axle Gear Ratios
Trans gear ratios, axle ratios, RPO codes, tow vs MPG impact.
Key Fob Programming
DIY programming steps, FCC ID, fob PN, battery, transponder.
Same spec — other model years
Maintenance & repair guides
2025 GMC Yukon Maintenance Schedule →
Available maintenance guidance; confirm the manufacturer schedule.
Repair planning references →
Plan the scope of work; detailed procedures need configuration-matched evidence.
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