Code snippets from Praveen Kumar's article: https://medium.com/aleph-universe/whats-new-in-location-ios-14-9920ae42ba5c

NavigateToSettings.swift

if locationManager.accuracyAuthorization == .reducedAccuracy {
    let alertController = UIAlertController(title: "Alert", message: "Need your exact location to start navigation", preferredStyle: .alert)
    let okAction = UIAlertAction(title: "OK", style: .default) { (_) in
        guard let settingsUrl = URL(string: UIApplication.openSettingsURLString) else {
            return
        }
        if UIApplication.shared.canOpenURL(settingsUrl) {
            UIApplication.shared.open(settingsUrl, completionHandler: { (success) in
                // Successfully navigated to settings
            })
        }
    }
    let cancelAction = UIAlertAction(title: "Cancel", style: .cancel, handler: nil)
    alertController.addAction(okAction)
    alertController.addAction(cancelAction)
    self.present(alertController, animated: true, completion: nil)
}