maxn99

That's the same annoying noise I have on my 2006 RX 400h. It's the brake actuator. And yes, it will charge and discharge without the engine running. The dealer says it's normal (of course)

Well now that is just lame if thats true. I just noticed that I actually can hear and feel it when driving as well, does that happen to you or is this just my own issue? I am going to go to the dealer later this week to have it checked out and will report back!

Tilani -

Did you visit the dealer yet? I'm curious to know what they said. Usually they can't duplicate (or hear) the issue. A good way to duplicate it for them is to turn the key to the 'on' position (don't start the car) and pump the brakes over and over.

I notice this noise all the time - and believe me others do too. It's especially noticeable on the 400h when in electric/battery mode cruising through the parking lot. People look at my car like 'what the hell is wrong with it?'. Try driving alongside a wall so you can hear the noise reflected back. It happens ~20% of the time when releasing the brake pedal.

That's the same annoying noise I have on my 2006 RX 400h. It's the brake actuator. And yes, it will charge and discharge without the engine running. The dealer says it's normal (of course)