What is Gemini Personal Intelligence in your car — and how do you control what it knows?

Google is bringing Personal Intelligence — a version of Gemini that can use your personal context — to cars. It can chain requests together, like directions that account for your calendar and traffic, but that makes your signed-in account, activity controls, location history and microphone permissions worth reviewing. Here is how to stay in charge.

Your car’s voice assistant is about to stop treating every request as if it just met you. Short answer: Google is bringing a more personal version of its Gemini assistant, called Personal Intelligence, to cars, as reported on October 20, 2026. Instead of handling one command at a time — “navigate to the airport” — an assistant that can use your personal context can work through a chain: check your calendar for the flight, weigh live traffic, and suggest a departure time and route that fit together.

Why that raises the stakes: context is the feature and the risk in the same package. To be that helpful, the assistant depends on which account is signed in, what it is allowed to remember, whether it can draw on your location history, and when the microphone is live. A car also changes hands in ways a phone does not — passengers talk, kids ride along, and one day you sell it — so the settings you choose now decide what the car knows about everyone in it.1.

Check which Google account is signed into the car. Personal Intelligence draws on that account’s context, so make sure it is yours — not a shared, work or leftover account.2. Review your Gemini app and activity controls in your Google account, and pause or delete activity you do not want feeding the assistant.3.

Turn off personal results you do not want in the car, so those requests get generic answers instead of answers built from your data.4. Review your location history settings. A context-aware car assistant leans heavily on where you have been and where you usually go; decide whether that trade is worth it.5.

Before selling or trading in the car, remove its access. Sign out and remove the car from your account, the same way you would wipe a phone before handing it over.Common mistake: Tapping “allow” on every permission prompt during first setup because you are eager to try the feature. Permissions granted in the honeymoon are the ones that quietly stick around for years.Ad’s take: An assistant that plans the whole trip instead of reciting one turn is a real upgrade — but in a car, “personal” data is shared by everyone who rides in it.

Spend five parked minutes in the settings before you spend five months on the road.