Tesla has always positioned itself as a technology company that makes cars rather than a car company that adds technology. The integration of Grok, xAI's AI assistant, into Tesla vehicles is the clearest expression of that philosophy yet. It brings a conversational AI companion directly into the driving experience, without requiring you to pick up your phone or take your eyes off the road.
Grok arrived in Tesla vehicles in July 2025 and has been updated significantly since. Here is what it does, how to use it, and what to make of its current capabilities and limitations.
What Grok Is
Grok is an AI assistant developed by xAI, the AI company founded by Elon Musk. It is designed to answer questions, hold conversations, and increasingly handle vehicle-related tasks through natural language. In Tesla vehicles, it appears on the touchscreen and responds to voice input, allowing drivers and passengers to interact with it without touching the screen.
The integration makes Tesla the first automaker to deploy a conversational AI of this capability directly in production vehicles. Volvo, Rivian, Mercedes, and BMW are all working on similar features, but Grok in Tesla represents the most prominent commercial deployment to date.
Tesla has invested two billion dollars in xAI, making the relationship between the two companies more than a software partnership.
Which Tesla Vehicles Support Grok
Grok requires specific hardware to run effectively. It is currently supported on the Model S, Model 3, Model X, Model Y, and Cybertruck, provided those vehicles are equipped with an AMD Ryzen infotainment processor. Older Tesla models running Intel-based infotainment chips are not currently compatible.
To check whether your vehicle has the required processor, go to Controls, then Software, then Additional Vehicle Information on your touchscreen. The infotainment processor type is listed there.
Premium Connectivity or a stable Wi-Fi connection is also required. Grok processes conversations through xAI's servers rather than running entirely on the vehicle's hardware, so internet connectivity is essential for it to function.
All new Tesla vehicles delivered from July 12, 2025 onwards include Grok pre-installed. Older compatible vehicles receive it through over-the-air software updates.
How to Enable and Use Grok
Open Grok from the vehicle's main menu or activate it using the steering wheel voice button. The Spring 2026 update introduced a hands-free wake word, meaning you can now simply say Hey Grok to activate it without touching anything. Say Goodbye to dismiss it when you are done.
Once active, you can speak naturally. Ask it questions about anything, request information about places nearby, or use it for navigation commands. To use navigation through Grok, set the personality to Assistant and make your request verbally. Grok then inputs the destination into the vehicle's navigation system, removing the need to type on the touchscreen.
Personalities and Voices
One of the more distinctive features of Grok in Tesla is the ability to choose a personality. Options range from Storyteller, which responds in a narrative and descriptive style, through to Unhinged, which adopts a more unpredictable and humorous tone. The personality affects how Grok responds to questions and conversation rather than changing its underlying capabilities.
Each personality also has its own voice setting. This customisation is unusual for an in-car AI and reflects Grok's design as an entertainment and companion feature as much as a practical assistant.
What Changed in the Spring 2026 Update
The Spring 2026 software update was the largest upgrade Grok has received since its launch. Several significant changes arrived with it.
The Hey Grok wake word is the most impactful addition. Previously, activating Grok required pressing the voice button on the steering wheel or tapping the screen. Being able to say Hey Grok and immediately receive a response removes the last physical interaction requirement, making the feature genuinely hands-free for the first time.
Location-based reminders are also new. You can tell Grok to remind you of something when you are near a specific location. Saying remind me to pick up milk when I am near home creates a reminder that triggers when your vehicle is in that area. This makes Grok useful for practical everyday tasks rather than just conversation and navigation.
Navigation commands via Grok also expanded. Setting a destination, adjusting a route in progress, and searching for points of interest along the way are all available through Grok's voice interface as of software version 2025.44.25.
What Grok Cannot Do Yet
Being clear about current limitations avoids disappointment.
Grok cannot control vehicle functions. It cannot adjust the climate, change the media, open windows, or modify any car settings through voice commands. Tesla's existing voice command system handles those tasks separately and remains unchanged. The two systems operate independently, which means switching between them is sometimes necessary mid-drive.
This is a meaningful gap compared to what some competitors offer. Mercedes-Benz's MBUX voice assistant has supported vehicle function control through natural language for several years. Tesla's Grok remains focused on conversation, information, and navigation rather than vehicle control.
Grok also sometimes provides incorrect information about its own capabilities. Reports from early users, including a CNBC test drive in New York in April 2026, found instances of Grok claiming it could perform functions it currently cannot, such as adjusting seats or climate controls. This kind of confabulation is a known limitation of conversational AI systems and worth being aware of when relying on Grok for accurate guidance.
Privacy
Tesla states that conversations with Grok are processed by xAI in line with xAI's privacy notice. Interactions are kept anonymous from Tesla's perspective and are not linked to your account or your vehicle identifier. This means Tesla itself does not have visibility into your Grok conversations, though xAI handles the processing on its own infrastructure.
The Broader Context
Grok in Tesla is an early and evolving example of what in-car AI is becoming across the automotive industry. The assistant is currently most useful for hands-free information and navigation, where it reduces the temptation to interact with a phone or the touchscreen while driving. For longer drives with Full Self-Driving engaged, having a capable conversational companion has practical value.
The more significant question is where the integration goes next. Grok's current separation from vehicle control functions is a deliberate limitation that Tesla and xAI are expected to address in future updates. When Grok can adjust your climate, control your music, and answer questions without any handoff to a separate voice system, it will have become something more than a companion feature. For now, it is a compelling preview of what that future looks like.
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