FIXED: Vizio TV Screen Problems “Won’t Go Full Screen/Keeps Dimming”


We’ve all been there, you’re watching a show, and the TV screen suddenly goes black. You can still see the picture, but it’s not as clear as it should be or maybe your TV screen is constantly dimming or flickering.


These are common problems with Vizio TVs, so we put together this guide to help you fix them! So keep reading to find out the solution to Fixing Vizio TV Screen problems.


Why is Vizio TV Screen Blinking


Why is Vizio TV Screen Blinking


If you are experiencing a Vizio TV screen problem, this guide will help you troubleshoot the issue. A Vizio TV is a popular brand of LCD TV that comes in sizes from 32 inches to 80 inches.

There are many different models of TV available on the market, but they all share some similar features. The most common Vizio TV problems include:

  • Won’t go full screen: The TV will not go fullscreen when it changes from a movie to a show or vice versa.
  • Keeps dimming: The LED backlight in your television stops working and the screen starts to get darker and dimmer over time.
  • Sound keeps cutting out: The sound cuts out for about two seconds at random intervals.
  • Picture flickering: The picture flashes on and off, skips a few frames, or appears as a ghost image.
  • Intermittent power loss: The television will lose power for about two seconds at random intervals.


How to Fix a Vizio TV Screen That is Blinking


If you have a Vizio TV that is blinking, there are a few things you can try to fix it.

  1. Turn off the TV and unplug it for at least 10 minutes then plug it back in.
  2. Unplug the power cord and plug it back in.
  3. Unplug the power cord, remove the screws from the bottom of your Vizio TV, remove the power cable from your wall outlet, and re-connect it to your TV while holding down on your Vizio’s power button.

15 seconds (this will reset its settings).




As you have probably guessed, you can easily prevent the constant dimming of the display by disabling the features listed above. Below is where each of these features can be found.

Backlight Control: Menu > Picture > More Picture > Backlight Control > Off

Auto Brightness Control: Menu > Picture > Auto Brightness Control > Off

Ambient Light Sensor: Menu > Picture > More Picture > Advanced Picture > Ambient Light Sensor > Off

Adaptive Luma: Menu > Picture > More Picture > Advanced Picture > Adaptive Luma > Off

Smart dimming and zone dimming settings are not found on all smart lights, but you’ll be able to find them in your model’s manual. These functions should be easy to understand and can help with lighting issues as specified within the manual.


How Do I Fix The Backlight On My TV?


How Do I Fix The Backlight On My TV?


There are many ways to fix the backlight on your TV. You need to find the right solution for your particular model of TV.

If you’re unsure how to fix the backlight on your TV, try turning it off and then on again. This will cause a reset of the backlight and should work.

If this doesn’t work, try removing any dust or debris that may be blocking the LCD panel from the light transmission. If you can’t reach it, use a dry cloth to clean it and make sure there is no dirt or dust on the screen itself.


How Do I Get my VIZIO TV Out of Stretch Mode?


Stretch mode is a setting on the VIZIO TV that allows the screen to extend beyond its original size.

If you are experiencing difficulty in getting your VIZIO TV out of stretch mode, here are some troubleshooting steps that you can follow:

  • Turn off the TV and unplug it from the power source. Wait for at least 5 minutes before plugging it back in.
  • Hold down the power button for 10 seconds to see if this will reset your TV. If not, try holding down the reset button for 10 seconds as well.
  • Try plugging your HDMI cable into another HDMI port on your TV and then into your computer’s HDMI port. This should solve any issues with stretch mode.


How Do I Change The Aspect Ratio On My VIZIO TV?


The aspect ratio is the width of a television screen divided by its height. It is measured in inches and typically ranges from 4:3 to 16:9.

VIZIO TVs are different from other brands because they have an aspect ratio of 16:9, which means that they have a wider screen than most televisions on the market. To change the aspect ratio on your VIZIO TV, you need to use a third-party application like the VIZIO SmartCast app or the VIZIO SmartCast Home app.

First, you need to download the app onto your device and launch it. You can then select “Settings” on the home screen and then find “Aspect Ratio.”


Select “16:9″ if you want your TV to be as wide as possible or ” 4:3″ if you want it to be as tall as possible. Vizio TVs can either be 16:9 or 4:3.

The aspect ratio of a TV is the width of the screen divided by its height. VIZIO TVs are different because they have a wider screen than other brands, which is 16:9.


Are There Any Recalls on VIZIO TVs?


VIZIO has had issues with some of their TVs, but they are not recalling them. This can be a problem for consumers who are unaware of the possible hazards. Consumers might also be unaware that they have purchased a recalled product and might find out too late that they have been sold an unsafe product.

A recall is when a company has to take back products that were previously sold to make sure they do not cause any harm to consumers. A recall usually happens when there is an issue with the product that causes it to become unsafe or ineffective over time.


How Long Does VIZIO Warranty Last?


VIZIO is a company that produces consumer electronics, including televisions, soundbars, and speakers. VIZIO products are known for their high-quality and affordable pricing.

VIZIO warranties vary depending on the product type and the retailer who sells them. For example, a VIZIO TV comes with a warranty of one year from the date of purchase from an authorized VIZIO retailer.


A soundbar comes with a one-year limited warranty from the date of purchase from an authorized VIZIO retailer. A speaker’s warranty is either three or five years depending on the model purchased from an authorized VIZIO retailer.

Some retailers offer extended warranties for their products in case you need to replace your product within its warranty period. For example, some retailers offer a 2-year warranty instead of the standard 1-year warranty.


This means that if you need to replace your product within these 2 years, you will only have to pay for the cost of replacing your product once.



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Video Guide






In this guide, we have provided you with a few tips and tricks to help you troubleshoot the Vizio TV screen problems. If you still can’t solve your issue, or if the problem persists, please contact Vizio customer service.


Some of these tips may seem obvious but they are worth mentioning nonetheless. Some of them include checking the settings on your TV and ensuring that you have a power cord connected to it.

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