I recently was poking around the OnStar site and somehow found a plan called GMC Connected Vehicle that includes all this,
GMC Maps+
Get personalized navigation, stay on top of the latest road closures, traffic updates and view the current weather conditions as you travel — all seamlessly displayed on your vehicle’s touchscreen.
Remote Key Fob
Remotely start or stop your properly equipped vehicle, lock and unlock the doors, sound the horn and lights, all with your smartphone.
Vehicle Status
Check your fuel range, tire pressure, oil life and odometer all from your smartphone.
Vehicle Locate
See your vehicle's location on a map and set and share custom boundary notifications for arrivals and departures.
Remote Personalization
Customize your radio stations and In-Vehicle Apps from your smartphone with the my mobile app.
Send-to-Navigation
Using the my mobile app, send a destination to your vehicle so it’s ready to go when you are.
Unlimited Data
Your passengers can stay on top of everything online. Get unlimited access to in-vehicle data. Stream, surf and play with fast, reliable Wi-Fi®
Map Updates and Precise Positioning
Latest map updates and help keep you centered in your lane.
Connected Navigation
Equipped vehicles get access to real-time traffic and point-of-interest updates from your vehicle's navigation system.
WarnerMedia RIDE App™
Your passengers can stream 1000+ hours of hit shows and movies on their own devices from networks such as HBO Max, Cartoon Network, CNN and more. With content updated monthly, even if your drive is routine, the entertainment stays fresh.
Google Built-In
Google built-in compatibility offers a helpful, personalized and seamless way to enhance your in-vehicle experience. With Google Assistant, Google Maps and Google Play you get access to hands-free help, live traffic updates, some of your favorite apps and more.
GMC Unlimited Monthly Data -
Wi-Fi Hotspot
Stream unlimited music, TV shows, news and more on up to 7 devices.
It was listed for $24.95 per month, butmt CC statement shows they have only been charging $15.95 per month....