Green circle · In the car
Ask it on I-70.
First time, parked: on the screen tap App Launcher → Grok → Sign In and finish on your iPhone. After that, press and hold the voice button on the steering wheel and ask anything: the road report, a question from the radio, where to eat in Glenwood.
Grok in the car needs a paid Premium Connectivity plan (or Wi-Fi) and a newer AMD screen computer. Check under Controls → Software → Additional Vehicle Information. If yours doesn't qualify, the phone does the same job.