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My Vizio TV Sound Not Working (Why and How to Fix)

As an owner of a Vizio TV, I know the frustration of having the sound not working when you’re trying to enjoy your favorite show or movie. I recently ran into this issue and had to do some digging to figure out what was wrong and how to fix it. After researching various sources and trying various tips and tricks, I was able to get my sound working again.

In this post, I’m going to share what I learned and some other solutions I discovered so that you can hopefully avoid the same problem. In this post, I’m going to cover why my Vizio TV sound stopped working, how I fixed it, and some other solutions that you can try if you experience the same issue. So if your Vizio TV sound isn’t working, read on to find out how to get your sound back!

The common issues that could affect a Vizio TV’s audio include temporary glitches, outdated software, or changes in the audio settings. Meanwhile, some external culprits to consider are damaged cables or hiccups from the input devices.

Changes in audio settingsCheck for unintentional muting or volume adjustments.
Enabled sound featureDisable sound features like Surround Sound and Volume Leveling, and set the audio output to PCM.
Loose or damaged cable connectorsInspect and replace any loose or damaged cables connected to your TV or external speakers.
Temporary glitchesPerform a power cycle by turning off the TV, unplugging it, pressing the power button for 30 seconds, and then plugging it back in.
Input issues from external devicesDisconnect all input devices (e.g., gaming console, Roku, Amazon Firestick) and test sound with each device individually to identify the problem.
Outdated Vizio TV softwareConnect the TV to the internet for automatic updates or update manually via the TV menu.
Unmute Your TVCheck if the TV is muted or the volume is set to zero, and adjust the volume accordingly.
Check Audio ConfigurationsDisable Surround Sound and Volume Leveling, and set the audio output to PCM. Also, disable SRS TruVolume and SRS TruSurround in the audio settings.
Update Your Vizio TVConnect your Vizio TV to the internet for automatic updates or update manually via the TV menu (Menu > System > Check for Updates > Download). Restart the TV to apply updates.
Inspect Audio Cable ConnectionsCheck for loose or damaged cables between the TV and external speakers, and replace them if needed.
Power Cycle Your Vizio TVTurn off the TV, unplug it, press the power button and hold for 30 seconds, and then plug the TV back in. Test for sound issues.
Inspect Input DevicesDisconnect all input devices, plug them back in one by one, and test the sound system with each device. Also, try streaming content from the TV’s apps to determine if the issue is with external audio inputs.
Perform a Factory ResetReset the TV to factory default settings (Menu > System > Reset & Admin > Reset TV to Factory Default > input PIN > Reset). Note that this will erase all saved configurations.
Contact Vizio SupportIf none of the above solutions work, contact the Vizio Support team for further assistance or to schedule repairs.

Vizio TV Sound Not Working: Common Reasons

Before you try to get the sound back, you’ll need to identify the culprit first.

Here’s a list of potential causes to consider:

  • Changes in the audio settings or volume, like “muting”
  • An enabled sound feature that’s affecting your overall sound system
  • Loose or damaged cable connectors
  • Temporary glitches
  • Input issues from external devices
  • Bugs and incompatibilities from outdated Vizio TV software

How to Fix Sound Problems in a Vizio TV

With the common problems in mind, let’s check some simple solutions.

  1. Unmute Your TV

It sounds a bit obvious, but you might have muted your Vizio unknowingly. Maybe you pressed the button by accident, or a family member did it and forgot about it.

Regardless, there’s no harm in checking and pressing the button to unmute your TV.

If you’ve unmuted your Vizio and there’s still no sound, perhaps the volume level is set to zero. Try increasing the volume by pressing + on your remote or directly on your TV.

  1. Check Audio Configurations and Features

Next, you can check some configurations to see if they fix the issue:

  • Using your remote, press Menu > Audio > Surround Sound > toggle OFF.
  • Return to Audio > Volume Leveling > switch OFF if enabled.
  • Next, configure the audio output to PCM by returning to Audio > press Digital Audio Out > then switch to PCM. 

When you’re done, restart the TV and check for any issues.

If the issues persist, it might have something to do with the sound features. So, let’s disable them by pressing Menu > Audio Settings > Advance Audio > Disable SRS TruVolume and SRS TruSurround.

  1. Update Your Vizio TV 

Running on outdated software could create all sorts of bugs and errors that can cause your Vizio TV sound to stop working.

So, you’ll need to connect your Vizio TV to the internet to let the updates download automatically. Alternatively, you can update your TV manually by pressing Menu > System > Check for Updates > and Download.

Remember to restart your TV to apply the updates and hopefully get the sound back.

  1. Inspect Audio Cable Connections

A loose connection can affect the TV’s sound and cut it off completely. So, if you’re using external output devices with your Vizio, double-check the cables between the TV and the speakers.

If you notice that any cable has nicks and tears, it’s time to get a replacement. 

  1. Power Cycle Your Vizio TV

Internal glitches are another issue that could be corrupting your sound system. Try doing a power cycle to diagnose and discharge the glitches.

Here’s how:

  • Press the power button to turn off your TV.
  • Unplug the Vizio from the outlet and wait 60 seconds.
  • Press the power button and hold for 30 seconds.
  • Plug your TV back in to test for issues.
  1. Inspect Input Devices

Perhaps you have other external input devices like a gaming console, Roku, or Amazon Firestick connected to your Vizio TV. These devices might be the reason behind the missing audio.

That doesn’t necessarily mean they’re faulty, though. It could just be an issue with the cables, HDMI ports, or audio settings.

To determine which device is causing the problem, try disconnecting all of them. Next, you can plug them back in one by one while testing your sound system.

You can even try streaming content from the TV’s apps. If there’s sound, then you’ll know that the issue is with the external audio inputs.

  1. Perform a Factory Reset

The last-ditch solution is to do a factory reset. Remember to save your current settings on paper or with a picture, as this method will erase all saved configurations.

Afterward, grab your remote and press Menu > System > Reset & Admin > Reset TV to Factory Default > input PIN (the default pin is 0000) > Reset.

Once you’ve configured your setup, your sound system should be back and working.

  1. Contact Vizio Support

If all the previous methods didn’t work, then it’s time to contact the Vizio Support team. They’ll be ready to help you get the sound back or schedule repairs.


A lot of culprits can cause the sound to not work on a Vizio TV, from internal problems to external issues. Thankfully, there are easy solutions to try.

Perhaps a simple change in the audio setting, replacing cable connections, power cycling, disconnecting external devices, or factory resetting might be the answer.