Tesla owners can now talk to their cars and, for the first time, have the car actually understand what they’re saying in a meaningful way. The company has rolled out hands-free voice activation for Grok, xAI’s conversational AI assistant, letting drivers start a chat by simply saying “Hey Grok” and end it with “Goodbye.”

What Grok actually does inside a Tesla

The integration arrived via Tesla’s software update 2025.26, which brought Grok to vehicles equipped with AMD Ryzen-based infotainment systems. That’s the newer hardware generation, so older Model S and Model X units running Intel Atom chips are out of luck for now.

Activation works two ways. You can use the “Hey Grok” wake phrase, hands-free, or do a long press on the steering wheel’s microphone button. Both methods launch Grok’s conversational interface, which stays active until you say “Goodbye” or it times out.

Once active, Grok handles a range of tasks that go well beyond the typical voice assistant playbook. Drivers can ask natural-language questions, request navigation to specific destinations using conversational phrasing, get media suggestions, and even choose from customized AI personalities.