gazi001

My 2000 RX300 AWD having problem for BRAKE sign and ringing. Brake works good. Does the brake reservoir has any sensor on it? I should replace the cap or whole thing. Ideas are highly appreciated. Called lexus for the whole cap and stick costs $88.23.

salimshah

Yes the float is a sensor. You can manually pull it up and down to see if the light indicator change.

Salim

gazi001

No. I did pull up and down but the light indicator still there. It didnot change.
What it mean ? Can you explain please?

TunedRX300

If I remember it correctly, the other end of the float is a plug. Try to unplug, exam, and plug it back in. Replace it (if bad) is pretty straight forward but remember to flush the whole system with fresh brake fluid (two man pump and drain, monitoring-reservior-level classic method)

AlexusAnja

Doesn't the foot/emergency brake also light up the "BRAKE" light? Maybe your brake is not completely released? Press and release a few times to make sure it completely releases.

gazi001

Thanks TunedRx300 for your suggestions. I changed the brake reservoir switch assembly and now i have no problems. Thanks.