The proximity sensor on your iPhone automatically turns the screen off when you hold the device near your ear during a call. This prevents accidental touches, battery drain, and random button presses. But if the sensor stops working on iPhone 17, iPhone 16, or earlier models, your screen may stay on during calls, mute unexpectedly, or open apps while you’re talking.
How to Fix the Proximity Sensor Not Working on iPhone
Here’s a full guide to fix the proximity sensor issue on iOS 26 and earlier versions.
1. Remove Screen Protector or Case (Most Common Fix)
Many users don’t realize that a thick screen protector, misaligned glass, or a heavy-duty case can cover the proximity sensor area.
Try this:
- Remove your screen protector temporarily
- Clean the top area of the display
- Re-test the sensor during a call
If it works after removal, the protector is the problem — replace it with a thinner or sensor-friendly one.
2. Clean the Sensor Area Properly
The proximity sensor is hidden near the top bezel / notch of your iPhone. Dust, oil, sweat, or makeup can block it.
Steps:
- Use a microfiber cloth
- Clean around the front camera & TrueDepth sensor
- Avoid liquid cleaners
After cleaning, test it again during a call.
3. Restart Your iPhone
A quick reboot can refresh sensor-related system processes.
How to restart:
- Press and hold Side Button + Volume Down
- Slide to power off
- Turn the iPhone back on
Check if the sensor behaves normally afterward.
4. Turn Off Attention Aware Features
On some iPhones, Attention Aware Features interact with the proximity sensor.
Disable it:
- Go to Settings
- Tap Face ID & Passcode
- Turn off Attention Aware Features
This helps if your iPhone is incorrectly detecting face attention during calls.
5. Update to the Latest iOS 26 Version
A buggy update can affect sensors. Apple often fixes these issues in patches.
Update:
Settings → General → Software Update → Install latest iOS 26.x
6. Force Close Phone App & Reset Settings
If the bug is software-related in the Phone app, reset settings without deleting data.
Reset All Settings:
- Go to Settings
- Tap General
- Tap Transfer or Reset iPhone
- Choose Reset
- Select Reset All Settings
This resets system preferences but keeps your photos, apps, and data safe.
7. Check for Hardware Damage
If your iPhone has recently:
- Fell
- Got wet
- Overheated
- Had a display replacement
…the proximity sensor might be damaged or disconnected internally.
Signs of hardware fault:
- The sensor never turns off the screen
- The sensor behaves randomly
- The screen stays lit regardless of movement
In this case, software fixes won’t help.
8. Contact Apple Support or Visit Apple Store
If nothing works, the sensor might need calibration or hardware repair.
Apple technicians can:
- Run diagnostics
- Check Face ID module (proximity is part of this array)
- Replace parts if needed
Most proximity sensor issues on iPhone 17/16 are fixable under warranty or AppleCare+.
Final Thoughts
The proximity sensor is essential for preventing accidental screen touches during calls. Most issues with the iPhone 17 and 16 come from screen protectors, dirt around the sensor, or minor software glitches. Start with simple fixes like cleaning the top bezel or removing a screen protector, and move to deeper solutions like resets or updates.
