iOS 17: How to Turn Off Auto Brightness on iPhone Easily

To turn off auto brightness on your iPhone with iOS 17, navigate to Settings, then Accessibility, select Display & Text Size, and toggle off the Auto-Brightness switch. By doing this, you gain manual control over your screen’s brightness level.

After completing this action, your iPhone’s screen brightness will no longer automatically adjust based on ambient light conditions. You will have to manually adjust the brightness to suit your preferences or current environment.

You can also check out this video about how to turn off auto brightness on iPhone for more information.


Have you ever noticed your iPhone screen dimming and brightening on its own? That’s the auto-brightness feature at work, a well-intentioned design by Apple to make your iPhone’s screen visibility optimal in varying lighting conditions. However, not everyone is a fan of this feature, and sometimes you just want to set your brightness level and forget it, right? So, if you’re tired of your iPhone’s screen constantly changing brightness levels, you’re in the right place.

Turning off auto brightness can be particularly relevant for individuals who use their devices in stable lighting conditions or for those who prefer to have consistent control over their screen’s brightness. It’s also a simple tweak that can help save battery life if you manage your brightness levels efficiently. Whether you’re a new iPhone user or just haven’t dived into the depths of your settings menu, this guide is going to be a lifesaver.

Related: How to Turn Off Auto Brightness on iPhone 13

Step by Step Tutorial: Turning Off Auto Brightness on iOS 17

Let’s dive into the step-by-step process of turning off auto brightness on your iPhone running iOS 17.

Step 1: Open the Settings app

First things first, locate and open the Settings app on your iPhone.

The settings icon typically looks like a gear and can be found on your home screen or app library. This is the hub for all your iPhone’s customizations and preferences.

Step 2: Scroll down and select Accessibility

Once you’re in Settings, scroll down until you find the Accessibility option and tap on it.

Accessibility settings are designed to make your iPhone easier to use, but they also house some hidden gems, like the auto-brightness toggle.

Step 3: Tap on Display & Text Size

Within Accessibility settings, you will find an option called Display & Text Size. Select this to access more specific display settings.

This section is packed with options to customize your display’s appearance, including bold text, larger text, and color filters.

Step 4: Scroll down to find the Auto-Brightness toggle

Towards the bottom of the Display & Text Size menu, you’ll find the Auto-Brightness option.

It’s easy to miss if you’re scrolling too fast, so take your time and look out for it.

Step 5: Toggle off Auto-Brightness

Finally, toggle off the Auto-Brightness switch.

Once the toggle turns from green to grey, auto-brightness is off, and you’ve taken control of your iPhone’s screen brightness.


Custom ControlTurning off auto-brightness gives you full control over your screen’s brightness, ensuring it stays exactly how you like it.
Battery SavingsManually managing your brightness can lead to battery savings, as you may opt for a lower brightness setting than what auto-brightness would select.
Consistent User ExperienceKeeping your screen brightness consistent can be less distracting and provide a more uniform user experience.


Manual AdjustmentsWithout auto-brightness, you’ll need to manually adjust your screen’s brightness, which can be cumbersome in varying lighting conditions.
Potential for Eye StrainIf not managed properly, a consistent brightness level might lead to eye strain, especially in darker environments.
Battery DrainIf you forget to lower your brightness in a well-lit area, you could end up draining your battery faster than necessary.

Video About Auto Brightness

Additional Information

Turning off auto brightness on your iPhone with iOS 17 is a straightforward process, but there are a few things to keep in mind. Firstly, once auto-brightness is off, it’s entirely up to you to adjust your screen brightness. Don’t worry, though; the Control Center makes this pretty simple. Just swipe down from the top right corner of your screen (or up from the bottom if you have an iPhone with a Home button) and adjust the brightness slider as needed.

Another point to consider is that auto-brightness is designed to not only provide optimal visibility but also to conserve your battery life by reducing brightness in well-lit areas. So, don’t forget to dim your screen when you’re in a bright room or outside during the day. Doing so will help maintain your battery life and reduce glare.

Additionally, if you find that manual control isn’t for you, you can always go back and toggle auto-brightness back on. Remember that the feature is there to help you, and it’s flexible enough to switch on and off as your preferences change.


  1. Open the Settings app.
  2. Select Accessibility.
  3. Tap on Display & Text Size.
  4. Find and toggle off Auto-Brightness.

Frequently Asked Questions

Will turning off auto brightness affect my battery life?

Yes, if not managed properly, turning off auto brightness can affect battery life since the screen might stay at a higher brightness level than necessary.

Can I turn auto brightness back on after disabling it?

Absolutely! Just follow the same steps and toggle the Auto-Brightness switch back on.

Will my iPhone’s screen be too bright at night if I turn off auto brightness?

It might be unless you manually dim the screen. Remember to adjust the brightness to suit your environment.

Does auto brightness work in all apps?

Yes, auto brightness adjusts your screen’s brightness based on ambient lighting conditions regardless of the app you’re using.

If I adjust my screen brightness manually, will it stay at that level permanently?

Your manual brightness setting will remain until you adjust it again, even if you lock your phone or restart it.


Turning off auto brightness on your iPhone running iOS 17 is a simple yet powerful way to take back control of your screen’s brightness. Whether you’re seeking consistent screen brightness or looking to manage your battery life more actively, this feature gives you the flexibility to customize your iPhone experience to suit your needs.

Remember, you’re in control now, so don’t forget to adjust your brightness to fit different lighting environments. Keep these tips in mind, and enjoy your iPhone’s display exactly how you like it.

Join Our Free Newsletter

Featured guides and deals

You may opt out at any time.
Read our Privacy Policy