How to Connect a Vizio Soundbar to Your TV

The fastest way: HDMI ARC or eARC

Most Vizio soundbars connect to your TV using a single HDMI cable plugged into the HDMI ARC port on the back of your TV. ARC stands for Audio Return Channel — it sends sound from your TV back to the soundbar, so you hear dialogue and effects through the soundbar instead of the TV's built-in speakers.

Find the HDMI port on your TV labeled ARC or eARC (enhanced ARC is faster but works the same way for soundbars). Plug one end of an HDMI cable into that port and the other end into the HDMI input on the back of your Vizio soundbar. Power on both devices. Your TV should recognize the soundbar automatically within a few seconds.

If your TV does not have an ARC port, or if you want to use a different connection method, you have other options — but HDMI ARC is the simplest because it uses one cable and handles both the audio signal and the remote control signal.

Key Takeaways

HDMI ARC is the easiest connection: plug a single HDMI cable from your TV's ARC port into the soundbar's HDMI input, and your TV will send all sound to the soundbar automatically.
If your TV has no ARC port, use an optical digital cable instead, which carries sound but requires you to switch the TV's audio output setting manually.
Bluetooth works for streaming from phones and tablets but does not work for TV sound, so it is not a replacement for HDMI or optical.
After connecting, go into your TV's audio settings and set the soundbar as the default speaker so all sound routes through it.
If you hear no sound after connecting, restart both the TV and soundbar, then check that the TV's audio output is not muted or set to internal speakers.

Optical digital cable: the backup when HDMI ARC is not available

If your TV does not have an HDMI ARC port — common on older models — use an optical digital cable (also called a TOSLINK cable). Plug one end into the optical audio output on the back of your TV and the other end into the optical input on the back of your Vizio soundbar.

Optical cables carry sound but not remote control signals, so you will need to use your TV remote to control the volume instead of the soundbar remote. The soundbar remote will still control the soundbar's input selection and other settings, but not the TV volume.

After plugging in the cable, go to your TV's settings menu, find the audio or sound output section, and change it from "Internal Speakers" or "TV Speaker" to "Optical Out" or "Digital Audio Out." Your TV will then send all sound through the optical cable to the soundbar.

Bluetooth: for phones and tablets, not for TV sound

Vizio soundbars have Bluetooth, but it is meant for streaming music from your phone or tablet, not for connecting your TV. Bluetooth does not work reliably for TV audio because the connection can drop or lag, especially during action scenes or fast-moving content.

If you want to use Bluetooth to play music from your phone through the soundbar, press the Bluetooth button on the soundbar remote or the soundbar itself. Your phone will see the soundbar in its Bluetooth settings — select it and pair. After that, any audio from your phone will play through the soundbar.

For TV sound, always use HDMI ARC or optical. Bluetooth is a convenience feature for secondary uses, not a primary connection method.

Checking your TV's audio output settings

After you plug in the cable, your TV needs to know to send sound to the soundbar instead of its own speakers. Go to your TV's main settings menu — usually accessed by pressing the Settings or Menu button on your remote.

Look for a section called Audio, Sound, or Speaker Settings. Inside, you should see an option for audio output or speaker selection. Change it from "Internal Speakers" or "TV Speaker" to either "HDMI ARC," "Optical Out," or "External Speaker" — the exact name depends on your TV model and which cable you used.

Once you make this change, all sound from your TV — whether from cable, streaming apps, or built-in tuner — will route through the soundbar. If you ever want to switch back to the TV speakers, you can return to this menu and select "Internal Speakers."

Troubleshooting when you hear no sound

If you plugged everything in but hear nothing from the soundbar, start by restarting both devices. Unplug the soundbar from power, wait 10 seconds, and plug it back in. Do the same with your TV. This clears temporary connection errors that prevent handshake between the devices.

Next, check that the soundbar is set to the correct input. Press the Input button on the soundbar remote and cycle through the options until you see HDMI or Optical highlighted (whichever cable you used). The soundbar should show a light or on-screen indicator when it is receiving a signal.

Then check your TV's audio output setting again — go back to Settings and confirm the soundbar is selected as the audio output, not the internal speakers. Some TVs default back to internal speakers after a restart or software update.

If you still hear nothing, check that the cable itself is fully seated in both the TV and soundbar — push it in firmly until you feel it click. A loose connection will not carry signal. If the cable is find and the soundbar still does not respond, the cable may be damaged; try a different HDMI or optical cable if you have one available.

Using the soundbar remote to control TV volume

If you connected via HDMI ARC, the soundbar remote should control your TV volume automatically — no setup needed. Press the volume up or down buttons on the soundbar remote and your TV volume will change. This works because HDMI ARC sends the remote control signal back through the same cable.

If you connected via optical cable, the soundbar remote will not control TV volume. You will need to use your TV remote to adjust volume instead. Some people keep both remotes on the coffee table; others buy a universal remote that can control both devices.

If HDMI ARC is connected but the soundbar remote does not change TV volume, go into your TV's settings and look for an option called "HDMI Control," "CEC," or "Anynet+" (the name varies by brand). Turn this setting on. It enables the soundbar remote to communicate with the TV through the HDMI cable.

When to call a professional or contact Vizio support

Most Vizio soundbar connections work on the first try. If you have followed all the steps above — checked the cable, restarted both devices, confirmed the audio output setting, and verified the input selection on the soundbar — and you still hear no sound, contact Vizio support. They can walk you through model-specific troubleshooting or determine whether the soundbar has a hardware fault.

You can reach Vizio support through their website or by phone. Have your soundbar model number ready (it is on the back of the unit and in the manual). If the soundbar is still under warranty, they may replace it at no cost if the connection hardware is defective.

Frequently Asked Questions

Can I use both HDMI ARC and optical at the same time?

No. Your soundbar will only listen to one input at a time. If both cables are plugged in, use the Input button on the soundbar remote to select which one is active. Most people choose HDMI ARC because it also carries the remote control signal, so you only need one cable.

Do I need to turn on the soundbar every time I watch TV?

Not if you use HDMI ARC. The soundbar will turn on automatically when your TV turns on, and turn off when your TV turns off. If you use optical, you may need to turn the soundbar on manually, depending on your model — check your manual to see if your soundbar has an auto-on feature for optical input.

Why does my soundbar only work when I use the soundbar remote, not the TV remote?

This usually means HDMI Control or CEC is turned off on your TV. Go to your TV settings, search for HDMI Control, CEC, or Anynet+, and turn it on. This lets the soundbar remote communicate with your TV through the HDMI cable. If you are using optical instead of HDMI ARC, the TV remote will never control the soundbar volume — that is a limitation of optical cables.

Can I connect my soundbar to my TV wirelessly without HDMI or optical?

Vizio soundbars do not support wireless TV connection. Bluetooth is available but not reliable for TV audio. You need either an HDMI ARC cable or an optical cable for stable, lag-free sound from your TV.

What if my TV is wall-mounted and the cables are hard to reach?

HDMI and optical cables are thin and flexible — you can usually route them behind the wall or through a cable management box. If the back of your TV is truly inaccessible, ask a professional installer to run the cable for you. Do not force a cable into a tight space, as it can damage the port.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.