Car '06 IS250. I made a somewhat quick turn onto a steep driveway and my car beeped, doors unlocked, and hazards came on. I did something similar one other time but the incline wasn't as steep and the doors didn't unlock. What in the world would cause such a thing?

Does your car have the pre-collison detector?

Perhaps the car thought that at the angle you were entering the drive that was beyond a certain threshold, and the car thought you were about to flip over, causing a pre-programmed emergency cycle thus unlocking your doors, hazards, and such?

I don't know. How can I tell?

Anyone have any additional info?

Wish I had an answer for you. my only experience with the car beeping was the traction control alerting me it lost traction. A quick hard turn can cause it to go off if the road has ice or a lot of loose debris on the road, which obviously caused it to lose traction to one or both rear wheels. This would cause the traction control and vsc light to turn on but shouldn't cause the doors to unlock and/or turn on your hazards.

Edit.
I did find this
https://www.clublexus.com/forums/is-second-generation/596191-2007-is250-car-chimes-and-unlocks-door-while-turning.html