How to disable the sos slider function with the side buttons

Hi!

While I don't believe there's a way to completely disable the feature, you can change it so that it won't call the emergency services when holding down the buttons:

1. Open Settings
2. Tap Emergency SOS
3. Toggle off 'Call with Hold and Release'

I understand if this wasn't the answer you were looking for. Apple highly emphasises accessibility in their products, so I highly recommend sending feedback directly to them regarding this: Feedback - iPhone - Apple.

Have a nice day!

You may get better and prompt responses if you may kindly provide the iPhone Model that you have and the iOS version if it is known to you and re-post.

With the limited information that you have provided, It is hard to even guess the problems faced by you. 

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Please re-post with detail so that someone else can help.

Call emergency services if you're in India

In India, rapidly press the side button three times, then your iPhone automatically calls emergency services. Or, if you have an iPhone with FaceID and Accessibility Shortcut is turned on, press and hold the side button and either volume button until the sliders appear, then drag Emergency SOS.

If you continue to hold down the side button and volume button, instead of dragging the slider, a countdown begins and an alert sounds. If you release the buttons after the countdown, your iPhone automatically calls emergency services.

After an emergency call ends, your iPhone alerts your emergency contacts with a text message, unless you choose to cancel. Your iPhone sends your current location (if available) and — for a period of time after you enter SOS mode — your emergency contacts receive updates when your location changes.

Change how you make SOS call

On iPhone 8 or later, your iPhone can automatically call emergency services. When Call with Hold and Release is turned on and you hold the side button and one of the volume buttons to make an emergency call, your iPhone begins a countdown and sounds an alert. If you release the buttons after the countdown ends, your iPhone automatically calls emergency services.

When Call with 5 Button Presses is turned on and you try to make an emergency call, your iPhone begins a countdown and sounds an alert. After the countdown ends, your iPhone automatically calls emergency services.

Call Quietly is available in iOS 16.3 and later. When Call Quietly is turned on and you try to make an emergency call with one of these options, any warning alarms and flashes will be silenced.

To turn these settings on:

1. Open the Settings app on your iPhone.
2. Tap Emergency SOS.
3. Turn Call with Hold and Release, Call with 5 Button Presses, or Call Quietly on.

If you turn off Call with Hold and Release or Call with 5 Button Presses, you can still use the Emergency SOS slider to make a call.

No worries! I'm glad I could help.

Submitting feedback is definitely the best way to go!

Take care. :)