My girlfriend just got an 03 ES300 from her grandmother this week. As I was flipping through the manual, I noticed that you can set the car to beep twice when you hit the remote lock button. Apparently, someone disabled this feature in this car, and she'd like it to do that. The owner's manual says that you need to talk to your Lexus dealer to adjust this feature, but I was hoping I might be able to find the answer here. Right now the lights flash, but there is no beeping. And I did check the volume knob under the dash, and it is turned on. Any help would be great.