iOS 17: How to Enable Auto Brightness on Your iPhone Easily


Michael Collins

Auto brightness on your iPhone can be a real game-changer, saving you the hassle of constantly adjusting your screen’s brightness level. Trust me, it’s a real eye-saver and battery life extender! To enable auto-brightness on your iPhone running iOS 17, you just need to delve into your settings and tap a few times. Let’s dive in, shall we?

Step by Step Tutorial on Enabling Auto Brightness on iPhone

Before we start tapping away, let’s understand what we’re about to do. Enabling auto brightness will allow your iPhone to automatically adjust the screen brightness based on the ambient light in your surroundings. It’s like having a smart assistant that knows exactly how bright your screen should be, so you don’t have to squint or blind yourself!

Step 1: Open the Settings App

Start by tapping the Settings icon on your home screen.

The Settings app is your control center for everything on your iPhone. It’s the place to tweak and tune your device to your liking.

Step 2: Scroll Down and Select Accessibility

Flick your finger upwards on the screen to scroll down in the settings menu and find Accessibility.

Accessibility is not just for those with special needs. It’s packed with features that can make the iPhone easier to use for everyone.

Step 3: Tap on Display & Text Size

Once in Accessibility, look for the option that says Display & Text Size and give it a tap.

Display & Text Size is where Apple hides all the options related to how your screen looks, including the text size, boldness, and more.

Step 4: Scroll Down to find the Auto-Brightness Option

Keep scrolling down until you see the Auto-Brightness option.

Auto-Brightness is usually towards the bottom, so don’t worry if you don’t see it right away. Just keep scrolling!

Step 5: Toggle the Auto-Brightness Switch to ON

Finally, tap the switch next to Auto-Brightness, turning it green.

Once this switch is green, your iPhone will take over the job of adjusting your screen brightness. No more manual sliding for you!

After completing these steps, your iPhone will start adjusting the screen brightness automatically. This means your screen will be easier on the eyes, whether you’re reading in bed at night or walking under the bright sun. Plus, it can help conserve your battery life since your iPhone won’t be using more power than necessary to light the screen.

Tips for Using Auto Brightness on iPhone

  • If you’re in a dark room and the screen seems too bright, give your iPhone a moment to adjust. It needs a second to read the room, literally!
  • Remember, you can always manually adjust the brightness even after turning on auto brightness. Just swipe down from the top-right corner to access the Control Center.
  • Keep an eye on your battery life. Auto brightness can save power, but if you’re always in bright areas, it might use more.
  • If auto brightness isn’t responding the way you like, try locking and unlocking your phone. This can give it a little nudge to re-adjust.
  • Don’t forget that certain apps can override your brightness settings. If you’re watching a video, the app might crank up the brightness for a better viewing experience.

Frequently Asked Questions

What if Auto-Brightness is not working?

First, double-check that you’ve enabled it correctly in your settings. If it’s still not working, try restarting your iPhone. Sometimes, a quick reboot can fix little glitches.

Can I still adjust the brightness manually after enabling Auto-Brightness?

Absolutely! Auto-Brightness just makes adjustments automatically, but you can still make manual tweaks whenever you like through the Control Center.

Will Auto-Brightness affect my battery life?

Yes, in a good way! It helps conserve battery power by reducing brightness in darker environments. But remember, it can also increase brightness in well-lit areas, which might use more power.

What happens if I disable Auto-Brightness later?

Your iPhone will then stop adjusting the screen brightness automatically. You’ll have to change it manually from that point onwards.

Can I use Auto-Brightness with Night Shift or True Tone?

Yes, Auto-Brightness works with both Night Shift and True Tone. These features adjust your screen’s color temperature, while Auto-Brightness adjusts the light level.


  1. Open the Settings App
  2. Select Accessibility
  3. Tap on Display & Text Size
  4. Find the Auto-Brightness Option
  5. Toggle the Auto-Brightness Switch to ON


Enabling auto brightness on your iPhone can take your user experience up a notch. No more fiddling with brightness sliders or squinting at your screen on sunny days. With iOS 17, it’s easier than ever to let your iPhone do the work for you. Just a quick trip to your settings can save you from eye strain and prolong your battery life, making your iPhone not just smart, but also energy-efficient.

Sure, you might encounter a hiccup or two along the way, but with these steps and tips, you’re well-equipped to tackle them. And remember, while auto brightness is pretty neat, it’s not set in stone – you can always flip the switch off if you ever change your mind. So, why not give it a try and see how it brightens up your day, or better yet, adapts to your night? It’s all about making your iPhone work smarter, not harder, for you. After all, isn’t that what technology is all about?