6 Quick Ways To Fix GMC Sierra speaker not working

If you’re a fan of driving your GMC Sierra with the windows down and the music up, then you know how frustrating it can be when one of your speakers stops working.

You may hear static or partial audio coming from the speaker, but nothing like what you heard before.

In this post, we’ll discuss some of the most common reasons why your GMC Sierra speaker may not be working as it should and provide troubleshooting tips to help get your system back in order.

How to fix the GMC Sierra speaker not working?

1. Inspecting the Wiring

The first step in troubleshooting a non-working speaker is to check for any loose wiring or connections. Your vehicle has an intricate audio system with many wires running to and from each component.

It’s possible that one of these wires may have come loose or been disconnected, which can cause your speaker to stop working.

Carefully inspect all wiring connections in your vehicle’s audio system and make sure they are secure and properly connected.

2. Replacing Fuses

If all of your wiring appears to be secure and connected correctly, then it may be time to check the fuses in your vehicle’s audio system.

A blown fuse can prevent power from reaching certain components in your system, including speakers. However, replacing a blown fuse isn’t always easy since there are several fuses located throughout the interior and exterior of your vehicle.

To locate a specific fuse, consult with an automotive repair manual or reach out to an experienced mechanic who can help you locate and replace any faulty fuses quickly and easily.

3. Checking for Audio Settings Issues

Another issue that could be preventing sound from coming through one or more of your speakers is an incorrect audio setting on one of the components in your system.

For example, if you have multiple channels set up but only one channel is sending sound through one speaker, then you may need to adjust some settings on either the head unit or amplifier.

This type of issue does require some technical know-how as well as a basic understanding of how car audio systems work; however, consulting with an experienced technician can help simplify this process significantly.

4. Check for Dirt and debris inside the speaker

If your GMC Sierra speaker isn’t working, the fourth thing you should do is check for dirt and debris inside the speaker.

Over time, dirt and debris can build up inside the speaker and cause it to malfunction.

To clean the speaker, first disconnect it from the power source. Then, use a vacuum cleaner with a soft brush attachment to remove any dirt or debris.

Once you’ve cleaned the speaker, reconnect it to the power source and test it to see if it’s working properly. If not, you may need to replace the speaker.

5. Check the head unit

The head unit is the control center for the audio system, and it may be the cause of the problem.

To access the head unit, remove the storage compartment located above the main instrument cluster. Once you have removed the storage compartment, you will see the head unit mounted on the left side of the dashboard.

Check to make sure that all of the connections are secure and that there is no dirt or debris blocking the speakers. If everything looks good, but the speaker still isn’t working, you may need to replace the head unit.

6. Clean the connections

If you’re GMC Sierra speaker suddenly stopped working, the most likely cause is a loose or dirty connection.

To fix the problem, start by checking all the connections to make sure they’re clean and tight. If that doesn’t solve the problem, then you may need to replace the speaker itself.

Fortunately, this is a relatively simple repair that anyone can do with a few tools and a little bit of time. So don’t be discouraged if your GMC Sierra speaker isn’t working.

How to Diagnose Blown GMC Sierra speaker?

Are your speakers in your GMC Sierra sounding worse than usual?

It might be due to a blown speaker. While this can be an annoying issue, it’s not uncommon for a speaker to blow out over time. Fortunately, you don’t have to replace the entire system in order to fix the issue.

With just a few simple steps you can determine whether or not your speaker has blown and repair it if necessary. Here’s how!

Step 1: Disconnect the Speaker

The first step is to disconnect the speaker from its power source. This is done by unplugging the wiring harness from behind the factory dash or amplifier (if equipped).

If you are unsure which wires should be disconnected, consult your owner’s manual for instructions on how to do so safely.

Step 2: Check the Speaker for Vibration

Once disconnected, place your hand around the edge of the speaker cone and gently press down or wiggle it back and forth while listening closely.

If you feel any vibration coming from inside, then it is likely that your speaker is still working and does not need replacing.

However, if there is no sound or sensation of vibration occurring, then chances are that your speaker has blown out and needs replacing.

Step 3: Check the Speaker with a Multimeter

If you want to double-check that your speaker has blown out before taking further action, then you can use a multimeter set to continuity mode (ohms) to test it further.

To do this, set up two probes—one at each end of the wire connected to the back of the speaker—and turn on continuity mode on your multimeter. The reading should be 0 ohms if everything works properly.

However, if there is no reading at all after testing both connections then we know that there is an open circuit somewhere in between which means that something has gone wrong with either wiring or speakers themselves and they need replacing.

Step 4: Determine the Amount of Damage to the Speaker

Now that we have determined that our speaker has indeed blown out, we need to assess how much damage has been done in order for us to determine what type of replacement parts are needed.

If all of the voice coils appear intact and undamaged, then chances are only minor repairs such as resoldering connections will be needed before we can get our speakers working again;

However, if some of these components look burnt or melted then more extensive repairs may be required such as complete replacement of both internal components (voice coils) as well as external ones (diaphragm).

Conclusion

Troubleshooting a GMC Sierra speaker that’s not working doesn’t have to feel overwhelming – especially when armed with the right knowledge!

Start by inspecting all wiring connections within the audio system for any loose wires or disconnected cables.

If everything appears secure but still no sound is coming through one particular speaker, then try replacing any blown fuses before moving on to adjusting settings within either the head unit or amplifier itself.

With these simple steps at hand, you’ll be able to get back out on the road enjoying music through all speakers again soon!