Want to save battery or prevent accidental touches on your iPhone 15? Turning off the screen is a simple solution. You can either press the power button or adjust settings for automatic screen timeout. It’s a quick and easy process that ensures your device remains secure and energy-efficient.
How to Make iPhone 15 Screen Turn Off
Follow these steps to learn how to manually and automatically turn off your iPhone 15 screen. Doing so will help you manage battery life and prevent unintended actions on your phone.
Step 1: Locate the Side Button
Find the side button on your iPhone 15.
This button is on the right side of the device, just like in previous models. It’s your primary tool for locking and shutting off the screen quickly.
Step 2: Press the Side Button
Press the side button once.
By pressing it, your screen will immediately turn off, locking your phone. This is the fastest way to save battery and secure your device.
Step 3: Set Auto-Lock Time
Go to “Settings” > “Display & Brightness” > “Auto-Lock.”
Here, you can decide how long your screen stays on when idle. It ranges from 30 seconds to 5 minutes, or you can choose “Never” to keep it on constantly.
Step 4: Adjust Auto-Lock Settings
Choose your preferred auto-lock time.
Selecting a shorter time will help conserve power. This setting is perfect if you often forget to lock your screen manually.
Step 5: Use AssistiveTouch
Enable AssistiveTouch from “Settings” > “Accessibility.”
This feature lets you add a virtual home button on your screen. You can customize it to include a “Lock Screen” function, providing an alternative way to turn off your screen.
After completing these actions, your iPhone 15 screen will either turn off manually with the side button or automatically after the specified time. This feature keeps your device secure and saves energy.
Tips for Making iPhone 15 Screen Turn Off
- Use Auto-Brightness: Enable this in “Settings” to adjust screen brightness based on your surroundings, extending battery life.
- Keep Updates Current: Software updates often improve battery performance, so ensure your iPhone is up to date.
- Limit Background Apps: Close apps running in the background to conserve power.
- Enable Low Power Mode: This reduces background activity, helping the screen stay off longer.
- Avoid Live Wallpapers: Static wallpapers use less power, helping your screen stay off longer.
Frequently Asked Questions
How can I quickly lock my iPhone 15 screen?
Press the side button to instantly lock the screen.
What if the side button isn’t working?
Use AssistiveTouch as an alternative to lock the screen.
How do I change the auto-lock time?
Go to “Settings” > “Display & Brightness” > “Auto-Lock” to adjust.
Can I turn the screen off without locking the phone?
No, turning off the screen also locks the phone for security.
Does a shorter auto-lock time save battery?
Yes, it helps conserve battery by reducing screen-on time.
Summary
- Locate the side button.
- Press the side button.
- Set Auto-Lock time.
- Adjust Auto-Lock settings.
- Use AssistiveTouch.
Conclusion
Mastering how to make your iPhone 15 screen turn off is a skill worth having. Not only does it help conserve battery life, but it also ensures that your phone remains secure when not in use. Whether you use the trusty side button or tweak the auto-lock settings for convenience, these small actions make a significant difference.
Experimenting with AssistiveTouch and exploring other features can provide even more flexibility. Remember, staying proactive with managing your device’s screen can lead to a more efficient and satisfying user experience. So, why not give it a try today? Dive into your settings and see how a few simple tweaks can make your iPhone work even better for you.

Matt Jacobs has been working as an IT consultant for small businesses since receiving his Master’s degree in 2003. While he still does some consulting work, his primary focus now is on creating technology support content for SupportYourTech.com.
His work can be found on many websites and focuses on topics such as Microsoft Office, Apple devices, Android devices, Photoshop, and more.