Q1: Can I remap the F5 and F6 keys to control brightness on modern Apple Silicon Macs?
A1: Yes, but it requires third-party software. Utilities such as Karabiner-Elements or Fluor allow you to reassign the Dictation and Focus keys on modern function rows back to traditional brightness down and up commands without breaking other system hotkeys.
Q2: Why does my keyboard light turn off while I am reading an article on my screen?
A2: This occurs because the automated idle timer is active. If your hands do not make contact with the keys or trackpad for the duration set in System Settings (such as 30 seconds or 1 minute), macOS turns off the LEDs to conserve battery. You can lengthen or disable this timer under the Keyboard panel.
Q3: Does leaving the keyboard backlight on maximum drain significant battery?
A3: Running the backlight at 100% brightness continuously consumes between 4% and 8% of total battery capacity over an eight-hour work session. Setting brightness to 40% to 50% provides adequate contrast in dim conditions while reducing LED power draw by more than half.
