GM · 2026-04-28 · major
Google Gemini Rolls Out to 4 Million GM Vehicles, Replacing Google Assistant
GM begins an over-the-air rollout of Gemini to roughly 4 million MY2022+ Cadillac, Chevrolet, Buick, and GMC vehicles with Google built-in, replacing the older Google Assistant in one of the largest in-car AI deployments to date.
GM is swapping the old Google Assistant for Gemini across about 4 million existing cars over the air.
Key specs
| Vehicles | ~4M |
|---|---|
| Region | United States |
| Vehicle model years | 2022+ |
| Brands | Cadillac, Chevrolet, Buick, GMC |
What is it?
An over-the-air update from GM that replaces the in-car Google Assistant with Gemini on every MY2022 and newer Cadillac, Chevrolet, Buick, and GMC fitted with Google built-in. Eligible owners will see a notification on their infotainment screen as the rollout reaches their car over the coming months.
How does it work?
The update arrives via the Play Store on Android Automotive OS and is gated behind an active OnStar connection plus a signed-in Google account and a Gemini opt-in. Drivers say 'Hey Google, let's talk' to enter a conversational mode where the LLM handles multi-step requests, follow-up questions, and topic switches without restarting the dialogue, instead of the old command-recognition model.
Why does it matter?
It is one of the largest single deployments of a generative AI assistant to consumer hardware that already exists in the wild — a fleet update at the scale of a major mobile OS rollout. For 2025+ models, basic Gemini access ships inside OnStar Basics for eight years at no extra cost, so GM is effectively bundling LLM-grade voice with the car.
Who is it for?
GM owners with Google built-in; people watching how generative AI ships on installed-base hardware.
Try it
Wait for the in-car notification, sign in to your Google account, opt in, then say: "Hey Google, let's talk."