How do I control the AI?

I've seen people do it in videos, they make AI controlled vehicles chase or flee from them. I know how to spawn in a vehicle and all, I just want to know how to make it chase or flee from me. Thanks in advance.

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I've read that Ctrl+T opens the AI GUI, but that never seems to work for me. Was it changed, does my game have an issue, Is there an alternative method?