Good day, Fellas! The GMC Sierra, a stalwart of the pickup truck segment, has been a reliable companion for drivers over the years. With a multitude of features, one that often goes unnoticed until it’s needed is the power outlet. Whether you’re charging your devices on a road trip or plugging in tools at a job site, power outlets have become essential. However, even the most dependable components can encounter issues, such as blown fuses. In this article, we delve into the world of GMC Sierra power outlet fuses location from the years 2003 to 2023, guiding you on locating these fuses and ensuring uninterrupted power.
Before we dive into the specifics, let’s grasp the fundamentals. Fuses are protective devices in a vehicle’s electrical system. They prevent electrical overloads by breaking the circuit when excessive current flows through them. Power outlets, on the other hand, have evolved beyond being mere cigarette lighter sockets. They now offer USB ports and more, catering to the diverse charging needs of modern drivers.
GMC Sierra Power Outlet Fuse Location
Here’s where things get model-year-specific. Below, you’ll find the fuse location for various model years of the GMC Sierra. Remember, your mileage may vary, and it’s always a good idea to consult your owner’s manual for the most accurate information. So let’s get rolling on this.
2003-2006 GMC Sierra
In the 2003, 2004, 2005, and 2006 GMC Sierra, you can find the power outlet fuse under the hood and in the cabin. So here they are.
So there’s a 20-amp fuse right there that’s labeled auxiliary power in light green color, and I think it’s for the power outlet, the one on the passenger side. And there is a cigarette lighter fuse with a 15-amp fuse in blue color for the PowerPoint, the one closer to the driver. Both of these fuses do receive constant power straight from the battery.
You can also find a power outlet fuse in the cabin, but not all models are equippe with this fuse. So here is it.
It’s a 20-amp fuse in light green, labeled as the auxiliary power number two, and I think it is for the rear seat power outlet.
In 2007, 2008, 2009, 2010, 2011, 2012, and 2013 Sierra, the power outlet fuses were located in the engine bay and in the cabin. You can find the cabin fuse box on the edge of the driver’s side instrument panel. You need to remove the cover to reveal the fuses. So here are the fuses.
There are two 20-amp fuses in light green color. The bottom one is for the power outlet located near the passenger side, and the other one is for the rear power outlet in the rear passenger seat, but not all models have this fuse, it’s depend on the trim level.
Next we move to under the hood fuse box, and there we’ll find another 20-amp fuse in light green color. This fuse for the power outlet located near the driver side.
In 2014, 2015, 2016, 2017, and 2018 GMC Sierra, the power outlet fuse is on the driver’s side and the passenger’s side panel inside the truck. Just pull the cover off to expose the fuses. So here are the fuses that you need to check.
There are two 15-amp Cartridge fuses for the Accessory power outlet and a red 50-amp fuse that you can change the outlets to retained accessory power or a constant 12-Volt by moving it to the blank terminal in the same fuse spot.
And this is the fuses on the passenger’s side panel. There are two 15-amp Cartridge fuses for the Accessory power outlet. There is also a 15-amp fuse in blue color for the USB port and a 25-amp fuse for the 110-Volt socket in the console panel.
In 2019, 2020, 2021, 2022, and 2023 GMC Sierra, the power outlet fuse was in the passenger side fuse box, which has fuses on both sides. You will need to unhook the fuse box and flip it over to expose the fuse on the back. So here are the fuses that you need to check.
You’ll find a 10-amp fuse for the USB port on the front fuse box. There is also a special 50-amp fuse that you can switch the outlets to always-on power or constant accessory by moving it to the blank terminal in the same fuse spot.
On the back of the passenger’s panel fuse box, there are some 15-amp fuses for the power outlet in this fuse box. The power outlet number 1, I think this for the power socket in the climate control system, and power outlet number 2 is for the power socket in the rear of the center console. Then for power outlet numbers 3 and 4, I think it’s for the rear of the bench seat if equipped.
Steps to Replace the Power Outlet Fuse
Prepare Your Workspace: Before diving in, make sure your vehicle is turned off and you’ve removed the key from the ignition to ensure safety.
Locate the Fuse Box: Refer to the earlier section to find the specific fuse box location for your Sierra’s model year.
Identify the Fuse: Scan the labels on the fuse box cover to identify the fuse corresponding to the power outlet. Check your owner’s manual if you’re unsure.
Remove the Fuse: Using a fuse puller or a pair of needle-nose pliers, carefully grasp the power outlet fuse and gently pull it straight out.
Inspect the Fuse: Hold the fuse up to the light and examine the wire inside. If the wire is broken or damaged, the fuse is blown and needs to be replace.
Replace the Fuse: Insert a new 20-amp fuse (or the appropriate fuse rating for your Sierra) into the same slot where you removed the old fuse.
Test the Outlet: With the new fuse in place, turn your vehicle’s ignition to the “on” position (without starting the engine) and test the power outlet to ensure it’s functioning correctly.
FAQs – GMC Sierra Power Outlet Fuse
Why did my power outlets stop working suddenly?
The most common cause is a blown fuse. Fuses are designed to protect the electrical system by breaking the circuit during a power surge.
Can I use a higher-rated fuse to prevent it from blowing again?
It’s not recommended. Fuses are designed to match the electrical load of the circuit. Using a higher-rated fuse can lead to damage or even fires.
How do I know if a fuse is blown just by looking at it?
In most cases, you’ll see a break in the metal wire inside the fuse. However, some fuses have a transparent window that changes color when the fuse blows.
Can I replace the fuse with any brand?
It’s best to use fuses from reputable brands that match the specifications of your vehicle’s original fuses.
Are there any precautions I should take while working with fuses?
Always disconnect the battery before working on fuses to prevent accidental shorts. Additionally, refer to your owner’s manual for safety instructions.
If replacing the fuse doesn’t work, what’s the next step?
If the fuse replacement doesn’t restore power to your outlets, it’s advisable to consult a professional mechanic to diagnose the issue.
So that’s all there. Knowing where to find and how to replace a blown fuse can save you time, money, and frustration. Regular maintenance and staying informed about innovations ensure that your power outlets remain reliable companions for years to come. Thanks for checking it out and have a nice day!
Hi! Greetings, I'm Nick, an automotive technician and a vehicle enthusiast with over a decade of experience working at a dealer service station. I have extensive knowledge of engine oils and lubricants and have helped countless customers maintain their vehicles. As an editor and author of articles on automobiles, I draw on my personal experience and professional training to provide readers with accurate and reliable information. I am passionate about sharing my expertise with others and helping them make informed decisions about their vehicles.