Siri AI behaves in the car much as it does on your phone. It can answer general questions, hold a back-and-forth conversation and dig through your own messages, emails and calendar to find what you need. Anything you discuss on the road also appears later in the phone’s Siri app, ready to continue once you’re out of the car.
The practical wins are about navigation. You can ask for directions to a restaurant a friend mentioned in a text without remembering its name, or tell Apple Maps in plain language to keep you off toll roads and highways. You can also ask for EV chargers or other stops along the way, taking your current charge into account.
The October iOS 27.2 update made the in-car assistant a little smarter. Siri AI can now remember earlier conversations, so you can ask about places it suggested last week, and it can pull answers from more places, including photos sent in Messages, the people invited to calendar events and your voicemails.
Because Siri AI reads personal data to do this, some drivers will see it as a timesaver and others as a privacy question. Either way, it only works with a phone that has the hardware to run it.