Mine works.
Not sure if the following will help, but make sure:
You've got an Internet connection; either wifi or cellular. Check settings. If on, check your router. If that looks good, use an Internet speed test app to determine data connectivity between your router and the iPad. If you are seeing cellular only, check your ISP.
Location services is turned on. (this shouldn't matter as far as maps working, but with it turned off, you probably won't see your iPad's location on the map, and direction routing won't work properly.