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Honda Accord Hybrid Harmonic Drone/Noise Suppression



  • jringojringo Posts: 3
    Great news for you!
    Now, could you please tell me on that TSB 06-005 ,
    what part was replaced? That is critical to know know.
    I'll relate my story after I hear what part was replaced that worked for you.
    Thanks, Wyatt
  • jayngeejayngee Posts: 17
    sorry I forgot exactly what the "part" is, but the noise comes through the front speakers (not something I figured out) and the package is for "noise reduction" so I assume it is installed somewhere in the sound system. It took only about 2 hours, shorter than the time I wait around for oil changes, so it must not be a big deal. sorry that's all I know.
  • jayngeejayngee Posts: 17

    it's been a few weeks and still no drone, so far so good. since I was never able to see the TSB report, I also have no specifics on the part. the panel inside the driver's door has been loose so I assume whatever was installed was in the door speaker. the man who helped me was Patrick and he works at P.S. Honda in Manhasset, NY. He was new and the ONLY person who seriously investigated the problem, despite my repeated complaints about that noise. When he couldn't figure it out he asked me for my information on the TSB. I gave him the number and he looked it up right there at the service desk, ordered the part and installed it the next week. I hope I don't get him in trouble for being so helpful. anyway, good luck. all I can suggest is that you insist they look up the bulletin and install it. I really didn't know for sure it was the problem so I was not insistant enough, but now that I see it cured my problem, I think you should feel confident enough to go over some heads if you have to. others have suggested going up to the regional manager if you need to. good luck! :)
  • packer3packer3 Posts: 277
    The replacement part name or number should be on your copy of the work order, if you didn't get one go back to the dealer and ask for one for your records.
  • jayngeejayngee Posts: 17
    found it- #06390-sdr-307 "noise kit"
  • packer3packer3 Posts: 277
    Thanks very much, does it sound like Sinatra now.
  • jayngeejayngee Posts: 17
    Sinatra, Kanye, The Eagles and Air America/POTUS '08 (XM radio) loud and clear, no longer competing with the "drone." It actually used to make our teeth hurt!

  • jbranjbran Posts: 1
    I just bought a CPO 2005 Hybrid Accord 3 weeks ago. At first I thought the noise was just part of the "regenerative breaking", but soon proved that theory wrong.

    I took the car back to the dealership on Monday, 6/16/08. They replaced my 2 front speakers and the suppression module... no more noise. Luckily, it was a warranty item. I have no idea how much this repair would cost otherwise.

    Thanks for listening.

  • kngolfkngolf Posts: 1

    Did you ever get a copy of the TSB 06-005? If so, could you forward it to me at

    Thanks. I have been listening to this noise for far too long. And same kind of thing with service managers... If we don't hear it, we won't fix it.
  • jringojringo Posts: 3
    I have a 2006 Honda Accord Hybrid purchased brand new.
    Love the car. At only 2000 miles, and ONLY in cold temperatures around 30 degrees, the car would sometimes run rough, idle rough and emit a roaring sound.
    Honda replaced FP number 38700-SDR-AO5 ACM Unit,
    (according to my warranty copy report.)
    That solved it for me. Over 30,000 trouble free miles since.
    I asked the "clueless" service advisor twice what the replaced part was, and he said he had no idea! Forget the service manager. Every time I tried to speak to him,
    they told me he was "out." $30,000 for a car, and they don't want to see or hear from you. Do you believe this arrogance? Anyway, that's my experience.
    If anyone knows what part that is, I'd like to hear from you what it is.
  • I have a 2005 Accord Hybrid, it's been an excellent vehicle. Two summers ago, in the heat, I noticed a low moaning noise when I would steer. I only noticed it at low speeds, or when the car's engine was disabled when the hybrid function kicked in. It started when the air temperature was very high, but its now occurring more often at any temp. The noise is very hard to describe but it sounds like an air vent is opening and closing, or there's something rubbing on the steering column. It could be plastic rubbing on plastic. Or even hydrolic. If anyone has had this happen with their car, let me know, esp if you have a diagnosis or fix. Thanks.
  • I also have a '05 that is making the same sound. Mine makes it in relatively cool weather (60 degrees). I notice it when I am going very slow around turns or parking. It sounds like plastic rubbing when the steering wheel is moved but I can't find the cause. Any suggestions?
  • Yes, that sound almost identical to me issue. I'm going to talk to the dealer about it, I'll let you know what I find out. Hopefully, there's someone out there who has already remedied this with their service adviser and has a solution.
  • dickcdavisdickcdavis Posts: 3
    April of 2009 I purchased a 2005 Honda Accord Hybrid at my local Honda Dealer, including the Honda Care extended warranty to 97,000 miles. The car is in perfect condition with only 37,000 miles on the odometer. It runs and drives like a dream, and is getting over 28 mpg average on every tank. My only problem is the DRONE when in eco mode at around 50 to 65 mph. This normally happens while driving in cruise control. I see others have had similar problems and I will take that information to the dealer.
    The last entry on the forum was Oct 11, 2008. I was wondering if anyone else has more information on this problem.
  • jayngeejayngee Posts: 17
    to the newer posters, look back into the 60's posts on this problem. I bought the car new and it developed the drone after year 2. I was very frustrated and lost some money having the service department repeatedly search for the phantom sound that only one person agreed they heard- but had no information on. I was accused of hearing things and also had some serious gender discrimination lobbed my way- apparently being a woman I just didn't understand my car. I researched it myself and found a TSB-05-006 reference but was unable to pull up the report. the service person I gave it to did find it and ordered the part- #06390-sdr-307 "noise kit" that finally solved the problem. Honda did not issue any service report for whatever their reasons, leaving the service depts. either unable or unwilling to address it. I hope this helps. :)
  • Thanks for your reply, and there is no question about the drone being real. I called my dealer with the TSB number and described the noise, he did say he was not aware of any problem like that, but that he would check out the TSB and get back to me. Within a week I got a call, he said he had the parts and was ready to make me an appointment to have it fixed at no cost. Well, since the repair, which involved replacing both front speakers and a module under the dash, I have not heard any noise since and what a wonderful feeling that is. :)
  • jayngeejayngee Posts: 17

    though we have been vidicated and relieved of the "drone," the only justice here is that the service was not charged to us. Otherwise I still feel Honda has gotten the better part of this deal by not issuing a report and taking responsibility. Though I will soon be in the market for a new car (89,000 miles since 2005,) I am annoyed enough to look elsewhere first. (My service center is absolved of any guilt here- except the guy who believed the imaginary sound was a woman thing) ;)
  • I bought my son's 2005 Accord Hybrid last year and began noticing the "drone" in a few months. Now in the summer it is unbearable! through the forum, I found out what it is, downloaded the Service bulletin and took it to the dealer. Luckily, they were able to hear it on a test drive. Estimate to fix $650! It's out of warranty- 46,000 and I just spent $400 for a new wiper motor. What was your mileage? Should I take it to general mechanic? Can't afford this fix, but can't stand to drive the car!
  • jayngeejayngee Posts: 17
    I really don't remember the mileage, but since my complaints had already been on record since the second year, it was probably less or similar mileage to your car. I also had the extended warranty from the date of purchase, which you may not have since it is a used car. I might fight harder with Honda- try reaching out to the regional manager- it didn't help me beyond getting the service people to call me in, but it was before I found out about the service bulletin- that made the difference in the end- and the newly hired service person who took me seriously. Honestly, I really do love this car and so far only Honda has done all the service maintenance. Probably could save money elsewhere, but since it was one of the first hybrids out there and most mechanics didn't know much about them at the time, I figured if Honda broke it they'd be responsible to fix it. I'm close to 90,000 miles and other than normal maintenance, a new battery and tires, no other repairs. The annual maintenance at Honda costs plenty, $200-500, depending on mileage, but I'm sorry they discontinued the car. I even looked for another when my son needed a car, but there weren't any used for sale. If your car is anything like mine, you have plenty of miles to go, and the "drone" will drive you crazy- so I'd make a big stink to Honda regional first, but eventually I'd get it fixed.
  • amyjt64amyjt64 Posts: 2
    Hi Jayngee,
    Did you have any luck fixing your HAH? My '05 HAH has been making the similiar noise and when i brought it into the dealship the quoted me $650 to fix it as well and it's out of warranty. They told me I need a new Active Noise cancellation system put in. Did you find out if a local mechanic can fix something like this or if i should have the Honda dealership do it. I was hoping there was a recall on this issue since it's a huge known problem but I haven't found anything yet. Just curious what you did. My car is still at the dealership as I wanted to do research before I have them fix it since I can't really afford this either!!
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