[zjennings]

Update: an intermittent noise coming from driver's side under the dashboard is an electric motor that builds up pressure in the brake booster system. Since the gas engine is not always running, vacuum needed for the brake booster system is not always available.
Lexus service master technician confirmed that gas engine will not start under any circumstances unless car was not powered off. We must have forgotten to hit the power off button when we parked the car, so, once battery level dropped to certain level gas engine kicked in. Perfect explanation and it makes sense. I was able to replicate the issue with a note that once I left the car, it made three tones which was an indication the car was still powered on and key was not detected. Got to be more careful in the future. This hybrid and keyless start is soo new to us.

This is exactly what they told me, but it is NOT acceptable! Passengers in a Lexus should never be freaked out by a sound coming from your breaking system! The factory recommended a double flush of the breaking system, to try to eliminate the sound. I would expect this sound from a cheaper brand; but with a luxury brand, strange noises like this are unacceptable.

I will let you know if the double-flush fixes the noise.

 

[Don]

This is exactly what they told me, but it is NOT acceptable! Passengers in a Lexus should never be freaked out by a sound coming from your breaking system! The factory recommended a double flush of the breaking system, to try to eliminate the sound. I would expect this sound from a cheaper brand; but with a luxury brand, strange noises like this are unacceptable.

I will let you know if the double-flush fixes the noise.

Are you driving a Rolls Royce or the entry level CT200h by Lexus?

 

[my95tsi]

This is exactly what they told me, but it is NOT acceptable! Passengers in a Lexus should never be freaked out by a sound coming from your breaking system! The factory recommended a double flush of the breaking system, to try to eliminate the sound. I would expect this sound from a cheaper brand; but with a luxury brand, strange noises like this are unacceptable.

I will let you know if the double-flush fixes the noise.

Your passengers are freaking out? Lmao

Are you driving your grandma and her friends around town? Nothing will fix the buzz, nothing. It's called a hybrid.


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[Aleks]

To any prospective buyers of a CT, just realize this noise is hardly audible, and in a car with a larger/louder engine such sounds would be completely drowned out.


Also many of the noises associated with the CT are audible mainly because the engine shuts off completely sometimes in low speeds which results in a very quiet ride making it very easy to hear any little noise.


Although the car isn't all that quiet at speed and you can't hear the brake booster.

 

[jjjaaaccckkk123]

Hi,
Welcome to this forum site, here you can find lots of thinks,
i suggest you for your answer you have to contact any other expert, right now
i have no knowledge about your question, sorry for that


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