You can install our site as a web app on your iOS device by utilizing the Add to Home Screen feature in Safari. Please see this thread for more details on this.
Note: This feature may not be available in some browsers.
Learn how to use voice commands in your vehicle and view examples of common voice commands.
www.tesla.com
It's really discouraging they haven't included more voice commands, considering they've had ten years to work on it. I'm sure there are a lot of threads here and in other places on the web talking about this topic.