All Mac settings
Settings Pathfinder · Mac
Automatically adjust brightness
Lets a Mac with an ambient light sensor adjust display brightness to current lighting conditions.
In macOS 15
System Settings then Displays then Automatically adjust brightness
“If your Mac has an ambient light sensor, choose Apple menu > System Settings, then click Displays in the sidebar. (You may need to scroll down.) Turn on “Automatically adjust brightness.”” — Apple User Guide
Where it has lived
-
macOS 14 and later
System Settings then Displays then Automatically adjust brightness
Checked against Apple's User Guides from macOS 14 onward. Menus can differ slightly by region, language, model and installed apps.
Sources for this page
Last verified 8 Oct 2026
- 1 Change your Mac display’s brightness - Apple Support support.apple.com · guide for version 14.0
- 1 Change your Mac display’s brightness - Apple Support support.apple.com · guide for version 15.0
- 1 Change your Mac display’s brightness - Apple Support support.apple.com · guide for version 26
- 1 Change your Mac display’s brightness - Apple Support support.apple.com · current guide