Add daughter's iPhone to AppleCare
How can I add my daughter’s phone to my AppleCare insurance
iPhone 17, iOS 26
Question marked as
If the iPhone is eligible for AppleCare (not AppleCare One!), sign up for AppleCare in settings.
Add AppleCare coverage to your Apple device - Apple Support
If this is an AppleCare One plan, you’ll need to start your daughter’s own plan, as AppleCare One is per-account.
Add or remove a device from your AppleCare One plan - Apple Support