The Chevy accessory power outlet fuse protects the 12V power outlet, cigarette lighter socket, and related accessory circuits from overloads.
If your phone charger, dash cam, or portable tire inflator stopped working, the fuse is one of the first places to check.
This guide explains where the Chevy accessory power outlet fuse is located, how to identify the correct fuse in the fuse box, and what to do if replacing it does not restore power.
Where Is the Chevy Accessory Power Outlet Fuse?
In most Chevrolet vehicles, the accessory power outlet fuse is in the interior fuse box, also called the instrument panel fuse block.
On some models, a second fuse may be located in the underhood fuse block, especially if the outlet is tied to an ignition, retained accessory power, or cargo-area power circuit.
The exact fuse location depends on the model year and trim level.
Common Chevy models such as the Silverado, Equinox, Tahoe, Traverse, Malibu, Equinox, and Trailblazer may place the fuse in different locations, so the best reference is the fuse box cover legend or owner’s manual.
Most common fuse box locations
- Interior fuse panel: Usually found on the driver’s side of the dash, under the steering wheel, or behind a trim cover on the side of the dashboard.
- Underhood fuse box: Typically near the battery or along the engine compartment fuse center.
- Rear fuse block: On certain SUVs and trucks, a rear or cargo-area fuse block may protect rear power outlets.
How to Identify the Correct Fuse
Chevrolet labels the fuse for the accessory outlet in different ways depending on the vehicle.
Look for terms such as Power Outlet, Aux Power, Accessory, Auxiliary Power, 12V Power Outlet, or Cig Lighter.
The fuse may also be associated with a specific zone, such as front accessory power outlet, rear accessory outlet, or console outlet.
If your vehicle has multiple outlets, each one may have its own fuse.
Common fuse label names
- ACC
- PWR OUTLET
- AUX PWR
- CIG LTR
- POWER POINT
- ACCESSORY SOCKET
If you are unsure, compare the fuse legend in the owner’s manual with the cover diagram.
Chevrolet often prints the circuit name and amperage rating directly on the fuse box cover.
What the Accessory Power Outlet Fuse Does
The accessory power outlet fuse is designed to prevent electrical damage if the outlet draws too much current.
If a charger, inverter, or accessory malfunctions, the fuse blows before wiring or the outlet itself is damaged.
That protection matters because accessory outlets are commonly used for high-draw items such as air compressors, heated coolers, vacuum cleaners, and power inverters.
Using more current than the circuit is rated for can blow the fuse even if the outlet looks fine.
Signs the fuse may be blown
- The outlet has no power at all
- Phone chargers do not work in the outlet
- A dash cam or GPS loses power immediately
- The outlet works intermittently
- Another accessory on the same circuit stopped working
How to Check the Fuse Safely
Before removing any fuse, turn the ignition off and remove any accessory plugged into the outlet.
If your Chevy uses retained accessory power, wait a few minutes for the system to shut down completely.
Use a fuse puller or small plastic tool to remove the suspected fuse.
Hold it up to the light and inspect the metal element inside.
If the metal strip is broken, burned, or visibly separated, the fuse is blown.
Tools that help
- Fuse puller or needle-nose pliers with insulated grips
- Owner’s manual or fuse panel diagram
- Replacement fuses of the correct amperage
- Test light or multimeter for confirmation
A multimeter can confirm whether power is reaching the fuse and whether the fuse is allowing current through.
This is useful when the blade fuse looks intact but may still be faulty.
How to Replace the Chevy Accessory Power Outlet Fuse
Replacing the fuse is simple if you use the correct amperage rating.
Chevy circuits commonly use mini blade fuses in ratings such as 10A, 15A, or 20A, but always replace with the exact rating specified on the fuse box diagram.
Replacement steps
- Turn the vehicle off and remove the key or keep the fob away from the vehicle if needed.
- Locate the correct fuse using the legend or owner’s manual.
- Pull the fuse straight out with a fuse puller.
- Inspect the old fuse to confirm it is blown.
- Install a replacement fuse with the same amperage rating.
- Test the outlet with a known working accessory.
Do not install a higher-amperage fuse to stop repeated failures.
That can overheat the circuit and damage wiring, sockets, or control modules.
Why the New Fuse Might Blow Again
If the replacement fuse blows right away, the problem is usually not the fuse itself.
Repeated failures often point to an overloaded outlet, a damaged plug, a shorted accessory, or debris inside the socket.
Common causes include a coin or metal object stuck in the outlet, a worn charger, corrosion in the socket, or a power inverter that draws too much current.
On some Chevrolet models, the circuit can also fail because of a wiring issue behind the dash or in the center console.
What to check next
- Test the outlet with a different accessory
- Inspect the socket for damage or loose contacts
- Check for melted plastic, corrosion, or burn marks
- Verify that all other outlets on the same circuit are working
- Review whether the accessory exceeds the outlet’s amperage rating
Model-Specific Notes for Chevy Owners
Different Chevrolet models may place the accessory outlet fuse in different locations or assign multiple circuits to different outlets.
Trucks like the Silverado and Colorado may have separate fuses for front and rear power ports, while SUVs like the Traverse and Tahoe may route accessory power through body control module-related circuits.
If your vehicle has an infotainment system, multiple USB ports, or a cargo power outlet, those features may not share the same fuse as the 12V socket.
In some cases, the outlet may lose power because the ignition state, accessory delay timer, or body control module is disabling the circuit rather than the fuse being blown.
When to Use the Owner’s Manual or a Wiring Diagram
The owner’s manual is the fastest way to identify the correct fuse because Chevy fuse legends can vary even within the same model line.
A repair manual, factory wiring diagram, or dealership service information can be helpful if the outlet is labeled differently or if the vehicle has aftermarket electrical work.
If you are troubleshooting a stubborn electrical issue, the diagram can show whether the outlet is powered through a relay, shared with other accessories, or controlled by a module.
That information can save time when the fuse is not the real cause.
Frequently Overlooked Details
- The accessory power outlet may stop working when the ignition is off if the vehicle is designed to disable it in accessory-off mode.
- Some Chevy outlets are only active with the engine running.
- Rear cargo power ports may have a separate fuse from the front console outlet.
- USB ports and 12V outlets are not always on the same circuit.
- A blown fuse can be caused by an accessory problem, not just a vehicle fault.
If you still cannot find the answer to where is the Chevy accessory power outlet fuse for your exact vehicle, the safest approach is to check the fuse box cover, verify the fuse amperage, and match the circuit label in the owner’s manual before replacing anything.