Strange electrical noise.
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Thread: Strange electrical noise.

  1. #1
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    Strange electrical noise.

    Hi guys,

    This is my very first post!
    I need some help with a noise I'm hearing inside the cabin of my CT.
    It just started when I hit around 1,500 miles. The noise it's making sounds like the ringing you would get in your ears after you would leave a loud concert or party. I noticed it makes it when you are at a stop while pressing on the brake and while driving with or without braking. It's really annoying and need to have the radio on so I don't go crazy. I can definitely say its not coming through the audio system because it still does it when it's off.
    Any help would be appreciated.

    Thanks,
    Roy

    2012 Lexus CT200H F Sport
    2001 Lexus IS300- R154 w/LSD-2JZGTE VVTI-GT3788R (In the works!)

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  3. #2
    Senior Member 11LFCH's Avatar
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    Is it a high pitch sound while the car is in motion? First time I heard this same irritating sound was a few months after I got the car. Had the dealer checked it but according to their specialist it's from the hybrid system. Most hybrids from Toyota & Lexus make this high pitch sound. They even let me test drive another CT from the lot and it too had the noise.

    My advice is roll up your windows and crank up your tunes to drown the noise.

    Eventually you'll get used to the noise and learn to ignore it. I have.

    Last edited by 11LFCH; 05-17-2012 at 08:29 PM.
    06/11 CT200h Smoky Granite/Ecru

  4. #3
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    Quote Originally Posted by 11LFCH View Post
    Is it a high pitch sound while the car is in motion? First time I heard this same irritating sound was a few months after I got the car. Had the dealer checked it but according to their specialist it's from the hybrid system. Most hybrids from Toyota & Lexus make this high pitch sound. They even let me test drive another CT from the lot and it too had the noise.

    My advice is roll up your windows and crank up your tunes to drown the noise.

    Eventually you'll get used to the noise and learn to ignore it. I have.
    Thanks for the quick reply. I figured that's something the dealer would say if I took it there. I guess I'm going to have to take your advice and crank up those tunes...lol

    So I guess it's safe to say the noise is probably permanent?

    It's just strange that it didn't make the noise until now. I've had my CT a little under a month.

    Thanks again for your help.
    2012 Lexus CT200H F Sport
    2001 Lexus IS300- R154 w/LSD-2JZGTE VVTI-GT3788R (In the works!)

  5. #4
    Senior Member coubs's Avatar
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    DC5ROY: This is exactly what happened to me last year after a month or so of ownership! When I called I got the "that's the regen braking" reply but I knew it wasn't as it would make the squeel even when I was not moving so I took it in and then got the "that's the hybrid system" reply but no one could give me an answer as to why it never happened in the first couple of months. I always have music playing and sort of got used to it last year but I do notice it once in a while. Now I try to convince myself that it's a unique sound that makes me and my hydrid stand out
    2011 CT200 Obsidian, Black Nulux, Canadian Tourning Edition - Non Nav

  6. #5
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    Thanks guys for all your input. It makes me feel a little better about the situation knowing its not something wrong with my car.
    I have to say I feel really good about joining this forum considering the great responses I received as soon as I posted this thread. I also have an IS300 as my weekend warrior and it seems like the CT community is just as great as the IS one.
    Thanks again.
    2012 Lexus CT200H F Sport
    2001 Lexus IS300- R154 w/LSD-2JZGTE VVTI-GT3788R (In the works!)

  7. #6
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    I also get a strange (but different) noise when I come back to the car after not driving it for a few hours, like in the morning getting ready to go to work. When I unlock and open the driver door I hear this grinding type noise. I know nothing is actually grinding but its like a low pitched groan. I'm sure its normal, just not something your normally hear from a car.

  8. #7
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    DC5ROY,
    As one opionion -- do you only hear it when travelling at slow speeds? I wonder if what you're hearing is the Audible Pedestrian Warning "sound" (not it's official name)? I hear this when I am pulling into and out of my garage or travelling as slow speeds with the windows down. It's similiar to the cartoon sounds that the Jetson's vehicle made.

  9. #8
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    Do you travel on gravel road? Could it be this noise:
    https://www.ct200hforum.com/forum/lex...n-problem.html

  10. #9
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    Quote Originally Posted by rdalemercer View Post
    DC5ROY,
    As one opionion -- do you only hear it when travelling at slow speeds? I wonder if what you're hearing is the Audible Pedestrian Warning "sound" (not it's official name)? I hear this when I am pulling into and out of my garage or travelling as slow speeds with the windows down. It's similiar to the cartoon sounds that the Jetson's vehicle made.
    It will do it at all speeds wether I'm accelerating or braking.
    2012 Lexus CT200H F Sport
    2001 Lexus IS300- R154 w/LSD-2JZGTE VVTI-GT3788R (In the works!)

  11. #10
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    Quote Originally Posted by lostchild View Post
    Do you travel on gravel road? Could it be this noise:
    https://www.ct200hforum.com/forum/lex...n-problem.html
    Definitely not that! Wow, that sounded horrible.

    2012 Lexus CT200H F Sport
    2001 Lexus IS300- R154 w/LSD-2JZGTE VVTI-GT3788R (In the works!)

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