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Table of Contents
1. Check if the ambient light is dark enough
2. Use the function keys to manually adjust the keyboard brightness
3. Turn on automatic adjustment in system settings
4. Use the terminal command to temporarily enable it (for special cases)
Home System Tutorial MAC How to turn on keyboard light on MacBook

How to turn on keyboard light on MacBook

Jul 19, 2025 am 12:14 AM
macbook keyboard light

When the MacBook keyboard light is not lit or needs to adjust the brightness, you can follow the following steps: 1. Check whether the environment is dark. If the light is sufficient, the keyboard light will not lit automatically; 2. Use the F5/F6 key (the new model needs to add the Fn key) to manually increase the brightness; 3. Enter the system settings > keyboard and check "Origin the keyboard in low-light environment" to enable automatic adjustment; 4. If there is any abnormality, you can enter the command sudo pmset -b darkwakes 1 to try to repair. Most cases can be solved through the first two items.

How to turn on keyboard light on MacBook

The MacBook keyboard light will automatically light up in darker environments by default, but if you find that it is not light or want to manually adjust the brightness, it actually only takes a few steps to do it. The focus is on the system settings and usage environment.

How to turn on keyboard light on MacBook

1. Check if the ambient light is dark enough

The keyboard backlight of the MacBook Pro (with Touch Bar) and some older models are automatically adjusted according to ambient light. If you are in a bright environment, the keyboard light may not light up.

How to turn on keyboard light on MacBook
  • Try it : Dim the room lights or turn off all light sources to see if the keyboard lights are automatically lit.
  • If you are using an external keyboard, this function is not applicable and needs to be set separately.

2. Use the function keys to manually adjust the keyboard brightness

Almost all MacBooks have dedicated function keys to control keyboard lights:

  • Press F5 (reduce brightness) or F6 (reduce brightness) to adjust.
  • On some new MacBook Pros, you need to hold down the Fn key F5/F6 to trigger the backlight adjustment.
  • If your keyboard light is not lit at all, try to turn the brightness up once, as it may be adjusted to the lowest level before.

3. Turn on automatic adjustment in system settings

You can choose to let the system always control the keyboard lights, or turn off automatic adjustments, and control them yourself:

How to turn on keyboard light on MacBook

Go to:

  • System Settings > Keyboard
  • Check "Automatically light the keyboard in low-light environment"
  • If you do not want the system to intervene automatically, you can uncheck it and then you can control it manually.

4. Use the terminal command to temporarily enable it (for special cases)

If you encounter a situation where the keyboard light cannot respond normally, you can use the terminal command to try to repair or force it on:

  1. Open "Terminal" (you can search in Spotlight)
  2. Enter the following command and press Enter:
     sudo pmset -b darkwakes 1
  3. Try restarting the computer after entering the password

Note: This is an advanced operation. If problems do not occur frequently, this is generally not necessary.

Basically these are the methods. In most cases, adjusting the system settings with function keys can solve the problem. It is not complicated but sometimes it is easy to ignore.

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