2014 Chevrolet Silverado 3500HD Fuse Box Diagram
Complete guide to the under-hood and instrument panel fuse box locations, diagrams, and common issues for the 2014 Chevrolet Silverado 3500HD.
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Quick Answer
The 2014 Chevrolet Silverado 3500HD has two primary fuse box locations:
- Under-Hood Fuse Block: Located in the engine compartment on the driver's side.
- Instrument Panel Fuse Block: Located on the driver's side of the instrument panel, accessible after opening the driver's door.
Under-Hood Fuse Block
This fuse block contains fuses and relays that control the engine and other high-power components. To access it, release the clips on the cover.
Fuses
| Fuse # | Amp | Color | Circuit / Component Protected |
|---|---|---|---|
| F1 | 40A | Green | Antilock Brake System (ABS) Pump |
| F2 | 30A | Pink | Engine Control Module (ECM) - Ignition |
| F3 | 60A | Yellow | Trailer Brake Control Module |
| F5 | 30A | Pink | Starter Solenoid |
| F8 | 40A | Green | Blower Motor |
| F10 | 15A | Blue | Fuel Pump |
| F16 | 15A | Blue | ECM |
| F22 | 10A | Red | A/C Clutch Compressor |
| F26 | 15A | Blue | Left High-Beam Headlamp |
| F27 | 15A | Blue | Right High-Beam Headlamp |
| F28 | 10A | Red | Right Low-Beam Headlamp |
| F30 | 10A | Red | Left Low-Beam Headlamp |
| F34 | 20A | Yellow | Cigarette Lighter / 12V Power Outlet |
| F43 | 15A | Blue | Tail Lamps / Parking Lamps |
| F46 | 15A | Blue | Brake Lights (Stop Lamps) |
| F52 | 60A | Yellow | Instrument Panel Fuse Block / Cabin Fuses |
| F53 | 60A | Yellow | Instrument Panel Fuse Block / Cabin Fuses |
Relays
| Relay # | Circuit |
|---|---|
| R1 | Starter Relay |
| R2 | A/C Compressor Clutch Relay |
| R3 | Fuel Pump Relay |
| R4 | Blower Motor Relay |
| R5 | Run/Crank Relay |
Note: The fuse numbers and layout can vary based on your truck's specific trim level and options (e.g., gas vs. diesel, trailer packages). Always confirm the fuse layout by checking the diagram printed on the inside of the fuse box cover.
Instrument Panel Fuse Block
This fuse block is located on the driver's side of the dashboard, near the door. It handles most of the interior and cabin-related electronics.
| Fuse # | Amp | Color | Circuit / Component Protected |
|---|---|---|---|
| F7 | 15A | Blue | Radio / Infotainment System |
| F12 | 10A | Red | Airbag (SRS) |
| F13 | 10A | Red | Instrument Panel Cluster (Gauges) |
| F17 | 15A | Blue | 12V Power Outlet |
| F19 | 25A | Natural | Audio Amplifier |
| F29 | 15A | Blue | Ignition Switch |
| F32 | 10A | Red | HVAC Control Module |
| F35 | 10A | Red | Body Control Module (BCM) |
How to Test a Fuse
A blown fuse is a common and easy fix. You can visually inspect a fuse to see if the thin metal strip inside has broken.
- Turn off the ignition and the affected component.
- Locate the correct fuse box.
- Remove the fuse using a fuse puller (often included in the fuse box) or small pliers.
- Hold the fuse up to the light. If the metal wire inside is broken or melted, the fuse is blown and needs to be replaced.
- Replace the blown fuse with a new fuse of the exact same amperage rating. Using a fuse with a higher rating can cause severe damage to the electrical system.
If you can't see the wire, you can also test the fuse for continuity with a multimeter.
Common Blown Fuses on the 2014 Silverado 3500HD
-
Trailer Brake or Trailer Light Fuses (F3, F43): These are among the most common fuses to blow, often due to a short in the trailer wiring or a faulty connection at the plug. Before replacing the fuse, inspect the trailer-side wiring harness and the truck's 7-pin connector for corrosion, damage, or loose wires.
-
Cigar Lighter / 12V Power Outlet Fuse (F34, F17): These fuses often blow when a faulty or high-draw device is plugged in. Check what was last plugged into the outlet. If the fuse blows again with nothing plugged in, there may be a short in the outlet's wiring.
-
Fuel Pump Fuse (F10): If your truck cranks but won't start, a blown fuel pump fuse is a possible culprit. While the fuse itself can fail, it can also be a sign of a failing fuel pump that is drawing too much current. If a replacement fuse blows immediately, the fuel pump or its wiring should be professionally tested.
Need help with a diagnosis or repair? Find a trusted shop on Repairius.
Before you pull a fuse on the 2014 Chevrolet Silverado 3500HD
- 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 2014 Chevrolet Silverado 3500HD
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
2015 Silverado 3500HD
2016 Silverado 3500HD
2017 Silverado 3500HD
2018 Silverado 3500HD
2019 Silverado 3500HD
2020 Silverado 3500HD
Maintenance & repair guides
2014 Chevrolet Silverado 3500HD 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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