I pulled in to a parking lot, shut the car off and within seconds, I can hear the door lock actuators unlocking the doors several times, then the driver side window winds down?? When I got home and pulled into the garage and shut the car off, it happened again. This time, the door actuators kept going like 25 times.

What is this?

 

your Lexus has been possessed, call an exorcist.

 

the first thing to check is the microswitch inside the drivers door that mounts on the lock cylinder end.this controls the locking of all doors when you turn the key and it also rolls up your windows when you turn the key twice.they sometimes become loose or get knocked off when someone tries to slim jim the car.good luck!

 

There is also a "small metal ball" connected to a "tension wire" . I KNOW THIS FOR A FACT because last night when I was Dynamat-ing the passenger side door, I broke it and my locks would not stay locked. They would just lock - unlock! I would lock them, then they would unlock again. Click-Unclick, Click-Unclick, Click-Unclick.

You have to lock that ball into the joint that it slips into and make sure THE BLACK WIRE PULLS ENOUGH SO THAT THE TENSION REMAINS CONSTANT! If not, the locks will auto unlock. Just look at it for a few minutes and study it. You figure it out.

Let me know if you haven't fixed it yet. I have to Dynamat the rear doors and I'll just take a picture for you.