I have a 1995 LS400 and while driving at 40 to 50 mph the car would start to slow it self down by applying abs. The brakes slows locks up until the car won't move forward much. By this time I have to park it on the side. Engine still runs perfectly with no overheating condition or signs of trouble.

Is this a automatic safety feature of Lexus??

Shutting the car off for a while and it goes back to normal. While waiting I can hear click click sound from the front caliper like it is releasing or something.

This does not happen all the time just once in a while.

Need some ideas, thanks..

I would guess that at least one of your brakes is dragging, and as the disk/pads expand it causes the system to slowly lock up.

The creaking noise is likely to be the brakes cooling down

I would take each wheel up in turn if you do not have Jack/stands, and pull the pads back away from the caliper as far as you can, activate the brakes and recompress, to try to clear any gunge causing the cilipers to stick.

If this works, most likely the problem will have cleared, but a more permanent solution would be to dissemble the calipers and clean the gink ogg the pistons and then either reasemble as is, or replace the seals.

This recall information might be relevant to you:-

Cars built 1992 - 1994, possible failure of suspension ball joint, affecting 1298 cars (Unknown date)possibility that the vehicle stability control (VSC), can operate wrongly when a call is being received on a mobile phone that is near the console box, if this should happen the brakes might activate without prior notice.