Enable/Disable Auto Brightness on iPhone 17, 17 Pro, Pro Max, & screen brightness issue iOS 26

Learn how to enable or disable Auto-Brightness on iPhone 17, 17 Pro, and 17 Pro Max running iOS 26 in just a few quick steps. This guide also covers screen brightness issues like the display staying too dark in sunlight or too bright at night, plus easy troubleshooting tips to fix Auto-Brightness not working properly.

save battery life and keep the screen comfortable for your eyes.

00:00 screen brightness issue
00:17 Auto Brightness Settings
00:42 Enable True tone
01:02 Check Cover
01:09 Reset All Settings

If your iPhone screen’s blasting your eyes in the dark or looking super dim out in the sun, that’s probably ‘cause Auto-Brightness is off; We’re gonna flip that switch on your iPhone 17 Pro, Pro Max, or the new iPhone Air right here;

Alright, grab your iPhone and head to the Settings app;
Scroll down a bit till you see Accessibility and tap it;
Now tap Display & Text Size;
Slide all the way down to the bottom and boom, there’s Auto-Brightness;
Go ahead and turn that switch ON; Wow, that’s it — your screen’s now gonna adjust itself based on the light around you;

Okay, let’s break down a few quick troubleshooting tips in case Auto-Brightness still acts up;

First, make sure True Tone is turned on under Settings app, scroll to Display & Brightness; True Tone works hand-in-hand with Auto-Brightness so your display always looks natural;

Second, check the top sensor near the Dynamic Island; If you’ve got a dusty screen protector or something covering it, the sensor can’t really make out the lighting right, so clean it up;

Third, if that brightness slider’s stuck or not moving at all, you gotta reset your settings; Head to Settings app on iPhone, Scroll to General, Again scroll to last option Transfer or Reset iPhone, Select Reset, Now, Select Reset All Settings; Don’t stress, it won’t wipe your photos or stuff — just your Wi-Fi passwords, wallpaper, and display preferences;

And finally, make sure your iPhone’s already on the latest iOS 26 update ‘cause Auto-Brightness relies on those system-level tweaks to work smooth;

That’s all you gotta do to keep your display bright outdoors and chill in the dark; Go ahead and try it out — your eyes are gonna thank you later;

#iPhone17 #AutoBrightness #iOS26 #ScreenBrightnessIssue #iPhone17Pro #iPhone17ProMax


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