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> With a car on lane keeping / cruise control you could slow down in front of it all the way to a stop and it will gladly stop behind you.

Blue Cruise, and I assume Tesla's FSD as well, will simply change the lane and go around you.

If the guy had a simple LKAS and adaptive cruise control on, then yes, you're right.

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Older systems including the older versions of Blue Cruise may not go around you, but you also don’t know if they even have radar cruise control enabled.

If it’s a simple enough system maybe it would just keep going the same speed no matter what until it hit you.

GM supercruise will go around you too I have it

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