2019 Chevrolet Tahoe - Fuse Box Diagram & Amperage

Quick Answer

The 2019 Chevrolet Tahoe features multiple fuse box locations to protect its electrical systems. You'll find fuse boxes located under the hood, on the passenger side kick panel inside the cabin, and in the rear cargo area.

Under-hood Fuse Block

The under-hood fuse block is located in the engine compartment, on the driver's side, near the battery. It contains fuses and relays for critical engine functions, lights, and other high-current accessories. Always consult the fuse box lid for the most accurate diagram for your specific vehicle's trim level.

Instrument Panel Fuse Block (Passenger Side Kick Panel)

The instrument panel fuse block is located on the passenger side of the cabin, behind a removable panel in the kick panel area. This fuse box typically controls interior accessories, infotainment, and various cabin electrical components.

Rear Cargo Area Fuse Block

The rear cargo area fuse block is typically located on the driver's side of the cargo area, behind a trim panel. This fuse box often handles power for rear accessories, trailer connections, and other optional equipment.

How to Test a Fuse

Testing a fuse is a straightforward process. You will need a fuse puller (often found in your vehicle's fuse box or toolkit) and a fuse tester or a multimeter.

1. Safety First: Ensure the vehicle's ignition is off and disconnect the negative terminal of the battery for added safety, especially when working with high-amperage fuses.
2. Locate the Fuse: Refer to the fuse box diagram on the lid or in your owner's manual to identify the suspected fuse.
3. Visually Inspect: Carefully pull the fuse straight out of its slot. Many fuses have a clear plastic body, allowing for a visual inspection of the metal wire inside. If the wire is broken or melted, the fuse is blown and needs replacement.
4. Use a Fuse Tester/Multimeter: For fuses without a clear body, or if visual inspection isn't conclusive, use a fuse tester. Insert the fuse into the tester, or touch the multimeter probes to the exposed metal test points on top of the fuse. A good fuse will show continuity or light up the tester. If there's no continuity or light, the fuse is blown.
5. Replace with Correct Amperage: Always replace a blown fuse with a new one of the exact same amperage rating. Using a fuse with a higher amperage can lead to electrical system damage or even fire. Using a lower amperage fuse will likely cause it to blow prematurely.

Common Blown Fuses on This Vehicle

While fuses can blow for various reasons, some circuits are more prone to experiencing issues due to heavy usage or specific component failures. In a 2019 Chevrolet Tahoe, common culprits for blown fuses include:

• Cigar Lighter/12V Outlets: These fuses often blow due to overloading from devices like phone chargers, portable air compressors, or other accessories drawing more current than the circuit can handle. Always check the amperage rating of your accessories.
• Blower Motor: A failing blower motor or an obstruction in the HVAC system can cause the blower motor fuse to blow. If your fan suddenly stops working, this is a good place to start.
• Radio/Infotainment System: Issues with aftermarket installations, wiring shorts, or even a faulty head unit can sometimes lead to the infotainment fuse blowing. If your radio is dead, check this first.
• Trailer Brake/Trailer Wiring Fuses: If you frequently tow, these fuses can blow due to shorts in trailer wiring, incorrect connections, or an overloaded trailer electrical system. Inspect your trailer's wiring and connections if you experience issues.

Before replacing a blown fuse, it's always a good idea to try and determine why it blew. A fuse is a safety device, and a recurring blown fuse indicates an underlying electrical problem that needs to be addressed.

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