The Google Play Services app is a way for users to update Google apps and apps from Google Play. This app provides core functionality like authentication to your Google accounts, synchronized contacts and location services which work together to enable features like voice search and Maps.
While the app is primarily a way to update Google apps, it also provides some additional features like sharing your device’s location with friends and family, and the option to use Google Now hands-free.
If you’re having trouble with the Google Play Services app, there are a few things you can try:
• Restart your device
• Update the app
• Check your date and time settings
• Clear the app’s cache
• Uninstall and reinstall the app
You can find more information about the app here: https://support.google.com/googleplay/answer/2815817?hl=en