YODAONE

Located this article regarding 2000 LS400;
"Vehicle Overview
The top-of-the-line Lexus sedan bolsters its brakes as the biggest change for 2000. The new Brake Assist feature senses when the driver is making a panic stop and applies maximum braking force faster than the driver's foot can travel."

Who can advise what specific changes were made by Lexus for 2000 model ...as brake related hardware P.N.s appear to be the same....unless all of this is accomplished by an ECU change??

Thanks

hotdawwg

I believe this was a comment added that was called Electronic Brake Distribution... I believe it's a module that Ctivates the rear brakes first and takes into consideration if the car is fully loaded Venus empty and applies the brakes accordingly to weight of the car...

YODAONE

Found this Australian Lexus press release;


https://www.pressroom.com.au/press_release_detail.asp?prID=585&clientID=3&navSectionID=2
Press Releases24 December 1999

LEXUS ADOPTS BRAKE ASSIST SAFETY FUNCTION

Lexus has increased primary safety by adopting a brake assist system for three of its models.

Lexus Brake Assist is designed to assist the driver in an emergency braking situation - where the driver cannot apply the high pedal force required to obtain the shortest possible braking distance.

Brake Assist is standard equipment on Year 2000 model Lexus LS400, GS300 and 4WD LX470.

Brake Assist interprets a quick, hard push of the brake pedal as emergency braking and supplements the braking power applied if the driver has not pushed hard enough on the brake pedal.

The Lexus system measures the speed and the force with which the pedal is pushed to determine whether the driver is attempting to brake rapidly.

The system then applies additional hydraulic pressure, to maximise braking performance.

The timing and degree of braking assistance are designed to ensure the driver does not discern anything unusual in the braking operation.

The system reduces the amount of assistance it provides when the driver intentionally eases the pressure on the pedal.

Lexus brake assist is in this way unique in allowing the driver to modulate braking forces.

The Lexus system means the driver can tailor the duration and severity of hard braking to suit the demands of sports driving or a potential accident situation.

The introduction of Brake Assist is part of a general Lexus feature upgrade, including three child restraint anchor brackets in LS400, GS300 and ES300.

The Year 2000 Lexus GS300 has a new exterior colour, White Pearl Crystal Shine.

The upgraded Lexus LX470 also has a range of additional features, including vehicle stability control, electronic brake distribution and 4WD traction control.



Still can't discern what parts were adopted to achieve this..