How to remove an accidentally set passcode on iPhone 17?

If you cannot provide the correct passcode, you may be forced to reset the phone and wipe all of the data stored on it to get back in.

If you forgot your iPhone passcode or your iPhone is disabled - Apple Support

If you see an iPhone, iPad, or Apple Vision Pro unavailable message or Security Lockout screen - Apple Support

If the phone has Find My turned on, a reset will require you to supply the correct Apple Account password, so as to satisfy the Activation Lock (anti-theft mechanism).

Hopefully the phone was set to back up data to, and/or synchronize data with, iCloud.

It is the passcode that appears every time you stop using your phone, the numbers

Enter the Passcode

Tap Settings

Scroll down and Tap Face ID & Passcode

Enter the Passcode again

Scroll down and Tap Turn Passcode Off

Tap Turn Off

Continue to follow the prompts

Unfortunately, this sounds like a possible Catch 22. Passcode or Password? I'm guessing Passcode.

You will need the Passcode to be able to access and change the settings to not need a Passcode.

Do you know the Passcode?

You can try to recover it. Use the link below.

If you forgot your Apple Account password - Apple Support