Turning Location Services On or Off

Apple

You can turn Location Services on or off in Settings > Privacy & Security > Location Services. You can turn Location Services on while you’re in Assistant settings or later via the Location Services setting. You can individually control which apps and system services access Location Services data. When Location Services is off, apps can’t use your location in the foreground or background. This can affect the performance of various Apple and third-party apps.

If you want to reset all your location settings to their default values, go to Settings > General > Transfer or Reset [device], tap Reset, then tap Reset Location & Privacy. When your Location and Privacy settings are reset, apps stop using your location until you give them permission again.