mcyc

Does any GS430 owners notice that the brake pedal pulses once in a while even when stopped and put in park? The best way to feel it is to put it in park and step and hold on the brake about 3 times. On the 3rd or 4th time of depressing the brake and hold you should feel a pulsing coming from the brake pedal. Please let me know if this is normal. If it is why is it doing that?

rominl

iTrader: (4)

i don't have 3gs so i can't be sure, but at least on my gs400, sc430, that's the brake system pressure circulating and it's normal. i wonder if it's the same case for 3gs

mcyc

can someone confirm this with their 3gs.

DrComputer

This is a known issue that has been discussed before. With the new brake-by-wire system in the GS430 you will feel a slight pulse in the pedal sometimes. I confirmed this with Lexus corp and the head tech at the dealer.