Vizio TV Sound Not Working? (Shockingly Simple Fix!)

The other day I was settling in to watch one of my favorite shows when I noticed the sound was not working properly on my Vizio TV. After some troubleshooting, I was finally able to pinpoint the root of my problem.

If your Vizio TV’s sound is not working, try checking the sound source and inputs for any misconfigurations. Also, check if your cables are damaged or worn. Finally, check if your TV was accidentally placed on mute. If nothing works, update your Vizio TV or perform a factory reset.

This guide will focus on the different ways that you can go about this process and help ensure that your Vizio TV is always working as it should. I’ve also had an issue with my Vizio TV turning on by itself, so check out this guide if you have a problem with that as well.

You should use the information in this guide to properly identify and address the issues you are having.

Why Can’t I Hear Any Sound On My Vizio TV?

The next section of this guide will focus on the different reasons that you might be experiencing sound issues with your Vizio TV. These are common issues that users of Vizio TVs encounter and have some troubleshooting methods that you can apply to resolve them.

Software Issue

Software issues are common causes of sound issues with Vizio TVs. If the system software that controls the main functions of your TV encounters an error or stops working temporarily, this could potentially cause issues with sound.

Input Problems

Input problems are another common cause of sound issues with Vizio TVs. If you have your audio inputs configured incorrectly or if there are devices plugged into inputs that you are unaware of, then you will likely experience issues with the sound on your TV.

TV Is On Mute

A Vizio TV being unknowingly placed on mute is the most common cause of sound issues with Vizio TVs. Because it is easy to accidentally press the mute button on remote control, this is a common occurrence.

If you are unaware of your TV is on mute, this could lead you to believe your TV is not functioning properly.

Cables Not Working Properly

If the cables you are using to connect your TV to external speakers are damaged or worn, it is possible that they are the cause of your sound issues. Since your external speakers depend on these cables to properly transfer the sound from your TV, if they are not working properly, it could cause issues.

Now that you better understand the different causes of Vizio TV sound issues, you can begin to consider some troubleshooting methods to help you resolve these issues.

How To Fix Sound Not Working On Vizio TV

1. Do A Power Cycle

The first thing you should do to troubleshoot your sound issue is to power cycle your TV. The process to do this is very simple and will take around one minute.

The steps to complete this have been listed below.

1. First, unplug your Vizio TV from the power outlet.

2. Once you have unplugged your TV from the power outlet, leave it unplugged for at least one minute.

3. After the minute has passed, plug the TV back in to complete the power cycle process.

If you need a visual guide, this video can be a valuable resource. If this did not resolve your issue, you will need to check your sound source configurations for issues. This will be detailed in the section below.

2. Check Current Sound Source

The problem could be stemming from the source of the sound that is not playing properly. If you are experiencing sound issues while watching certain channels on your TV, then it is likely that the issue is caused by your cable settings.

It is not uncommon for cable channels to experience temporary sound issues. You should check and see if you are able to hear audio using other sound sources like Blu-Ray or home consoles. If you are able to hear audio while using these devices, you should check your cable box for any audio shorts.

Generally, this issue will pass without much action needed from the user. If you are not able to hear any audio using any of your devices, then you will need to make sure that your remote control is working properly.

3. Check To See If The Remote Is Working

If your remote control is not working properly, you will not be able to properly control the volume using your remote. This could cause you to believe that you are having issues with your Vizio TV’s sound when you are actually having remote control issues.

You should inspect the batteries of your remote control and ensure that they are oriented properly and charged to an acceptable level. If you have confirmed this, you should consider the next troubleshooting method regarding the mute setting that is present on all Vizio TVs.

4. Make Sure TV Is Not On Mute

If you have confirmed that your remote control is working correctly, you should ensure that your TV is not on mute.

You can do this by attempting to toggle the mute function on and off by pressing the mute button on your remote control.

If you have confirmed that your TV is not on mute and still can’t hear any sound, you should use the next troubleshooting method to ensure that no other devices are blocking the sound from your TV.

5. Verify No Headphones Are Plugged In

If you have headphones plugged into your Vizio TV, all of the sounds from your TV will be channeled to the headphones rather than any external speakers or the built-in speakers inside your Vizio. You should make sure that no headphones are currently plugged into the AUX port of your TV.

If you have checked and made sure no headphones are connected to your TV, you should move on to inspecting the cables that you are using to connect your TV to any external speakers or devices. This process will be detailed in the section below.

6. Ensure HDMI Cable Is Functioning Correctly

It is important that you ensure your HDMI cables are functioning properly. If your HDMI cables are damaged or worn, you could experience issues with sound going in and out or being completely absent. HDMI cables have a long lifespan but will eventually need to be replaced.

If you are positive that there is no issue with your HDMI cable, then you should attempt to edit specific settings on your Vizio TV like SRS TruVolume. This process will be discussed in the section below.

7. Disable SRS TruVolume

SRS TruVolume is a built-in feature of your Vizio TV that is meant to normalize any significant fluctuations in sound levels. This feature has been known to cause issues with sound and can be disabled to address any issues it has caused.

The process to disable the SRS TruVolume feature on your Vizio TV is quite simple and has been detailed in the section below.

1. Press the MENU/OK button on your remote control. This will cause the on-screen menu to display.

2. Use the Arrow buttons to select the Audio tab and press MENU/OK

3. In the Audio menu, select the SRS TruVolume tab.

4. Use the Right/Left arrow buttons to toggle the setting Off.

This will disable the SRS TruVolume on your TV. If this did not resolve your issue, there are other settings on your TV that affect the sound you can alter to resolve your sound issues. These settings will be detailed in the next section.

8. Check If SAP Or MTS Is Enabled

The SAP and MTS settings are accessibility features that can sometimes cause issues with the sound on your Vizio TV. These settings can be disabled by using the steps below.

1. Press the Menu button on your remote.

2. In the Menu, navigate to the Audio menu.

3. While in the Audio menu, press the SAP, AUDIO, or MTS button on your remote control.

4. In the menu that displays once you have done this, select either MONO or STEREO.

This will disable these accessibility features on your Vizio TV. Now that you have exhausted most of the troubleshooting methods regarding sound settings, you will need to focus on the software of your Vizio TV if you are still experiencing issues.

These troubleshooting methods will be detailed in the section below.

9. Factory Reset Vizio TV

Factory resetting your Vizio TV will restore it to factory settings and will often resolve any software issues that your TV was experiencing. The process to do this is simple and can be done in around 5 minutes.

1. To begin the factory reset process, press the TV button on your remote.

2. Enter the Settings menu and enter into the System tab.

3. In the System tab, enter the Reset & Admin menu.

4. In the Reset & Admin menu, choose the Reset TV to Factory Defaults options and press Ok.

5. Confirm the reset on the next screen and the factory reset process will automatically begin.

If you do not wish to erase all of your user settings and downloaded content, you can consider updating the software on your Vizio TV. This process will be detailed in the section below.

10. Update Software On Vizio TV

To update your Vizio TV, you will first need to check and see if you have any automatic updates available for your TV. Simply connect your TV to the internet and it will automatically check for any updates. Any available updates will be downloaded and installed automatically.

If you have exhausted this list of troubleshooting methods, you should consider the next solution as a last resort.

11. Contact Vizio TV Support

You should contact Vizio support to have them further investigate your issues if none of the above troubleshooting methods have resolved your issue. You can contact Vizio support online or over the phone.

A technician will provide you with advice on additional troubleshooting methods that you can consider for resolving your sound issues. If it is determined that your Vizio TV is beyond repair, you should move on to the next section of this guide regarding warranty information.

12. Check Vizio TV Warranty

If you need to replace your Vizio TV, you should check your warranty information to ensure that you are covered for a replacement. A warranty can save you money up to the full price of a replacement TV. This will be incredibly beneficial if you find that your TV needs to be replaced.

Final Thoughts

Vizio TV’s aren’t perfect. I’ve experienced sound issues, getting booted out of Netflix while watching a show, and even SmartCast not working properly.

This guide has provided you with all of the information that you need to determine why you are having sound issues with your Vizio TV.

Using the information in this guide, you can accurately identify and resolve your issue.

Bonus Tips

Want to learn how to add amazing apps to your Vizio TV like HBO Max, Starz, or Hulu? Check out this guide!