Honda CR-V Bluetooth Buzzing Sounds

by Michael on October 29, 2012 · 20 comments

Over the past week, I’ve had three people tell me that they’re hearing a horrendous buzzing sound when I talk to the over the Bluetooth connection on my 2012 Honda CR-V. This after six months of flawless performance. Perplexed, I investigated.


Sure enough, even though the sound is crystal clear on my end, there’s a horrible buzzing sound on the other end. It’s almost like someone is running a band saw in the background, making it very difficult for them to converse.

I’ve checked for possible sources of electrical interference (e.g., from my after-market Garmin GPS unit) but I haven’t been able to find an explanation. Since we also have a 2012 Honda Odyssey with a Bluetooth connection, I’ve been able to rule out my phone as the source of the problem — it really is unique to the CR-V.

Update: I’m please to report that the buzzing problem has been solved. They (finally) replaced the microphone and that took care of it.

For the record, this is with an iPhone 4S (same deal with my wife’s iPhone in my car), though I’ve now read about people having similar problems with Android phones so it doesn’t seem to be specific to a certain model of phone.

After a bit of Googling the most likely culprit appears to be the Bluetooth microphone. I’ll have to take it in to be diagnose to be 100% sure but until they can show me that something else is to blame, that’s my working hypothesis.

If you’ve been having problems with a noisy Bluetooth connection, please share details in the comments section, below.


{ 20 comments… read them below or add one }

Jim Medlock November 30, 2012 at 10:47 pm

Wife purchased new 2012 Honda CRV with BlueTooth hands free phone. Her iPhone4 connects rather well, goofing up only occasionally but has terrible audio from car to called party. Remarkably degraded audio when phone connected, then as highway speed increases, audio gets worse, hissing, buzzing, severe distortion of words spoken, basically unreadable to other party. Have taken back to Honda dealer several times and continually get report that “can’t find or duplicate problem” which is a diversionary and definitive lie. I can duplicate problem every time. Changing phones does not alter problem. Problem is directly related to the vehicle BlueTooth and vehicle velocity, hence I focus on the car audio system, either the hands free mic noise cancelling is defective as it is computer altered proportional to vehicle speed, or the hands free mic pickup is interfered with by the cockpit noise cancelling feature (active noise cancelling by using car radio speakers). Honda has apparently reached the point where the customer doesn’t matter once the purchase has been made. The cars were great and durable, now the dealers are nothing more than Flim-Flam artists. Does anyone know a direct route to USA Honda headquarters, head of USA service or customer support? This seems to be the only way to get a resolution of this problem.

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Anil December 5, 2012 at 8:14 am

Many others are having issue including me:
http://www.crvownersclub.com/forums/14-problems-issues/18246-2012-cr-v-phone-noise-2.html

Hoping for a solution

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Karen January 14, 2013 at 6:23 pm

Been having this trouble for months. Crystal clear in the car on my end but described as sounding like I am in a bee hive by the people I talk to and a squeeling noise. This issue is not in any car review done on the CRV which I find interesting. Next stop Honda.

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Meeghan January 22, 2013 at 9:40 pm

I’m having the exact same thing! I’ve been planning to stop into my Honda dealer and will now be sure to show them these comments! Thank you all for sharing. I’ll be back if I find a solution.

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RON February 17, 2013 at 1:57 pm

I have the same issue….its not the phones…..try it with the engine off…..poof no buzzing sound…..I tried it with 2 different cell phones….engine on buzzing…engine off no buzzing…..clearly a HONDA issue.

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Tom February 21, 2013 at 11:37 am

I un-paired my phone from the HFL because it’s useless. Money for nothing.
Everyone I have attempted to talk with using HFL complains that they hear nothing but noise and it’s impossible to carry on a conversation.
I would have saved a lot of money buying a base Ridgeline and purchasing a Jawbone or Bose earpiece.
For a company that prides themselves on quality this is unacceptable. My Ford 150′s with SYNC make this seem like a talking through 2 tin cans with a string.

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M Thalken April 21, 2013 at 4:06 pm

Having the same buzzing sound with our bluetooth on our 2012 CRV.

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Bill October 25, 2013 at 12:04 pm

Same problem, if you rub your thumb a few times across the microphone on the roof it will stop the squeal and the other person will now be able to hear you. It sends a feed back through the mic and it kills the squeal.

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Michael October 26, 2013 at 10:38 am

Bill: You should be able to get it replaced under warranty. Bring it in and have them take a look.

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Maggy December 11, 2013 at 10:00 pm

I was having this same problem. I took my car to Honda, they couldn’t duplicate it, naturally. They thought it was my phone (iPhone 4). Then I would call the honda dealership every time it did it. Finally they told me to come in again, I did and spent 5 hours (!!!) at the dealership for them to tell me that they didn’t know what to do. Finally I fought so much that they replaced the Bluetooth device. I upgraded to the 5s in hopes that, that was the problem. For a few months everything was fine, all of the sudden it started doing it again! Granted the people at the honda dealership were super nice, but it’s annoying that I can’t use my Bluetooth! What’s the point?!?

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Judy April 4, 2014 at 7:24 pm

I started having this problem shortly after having an after market car starter installed. I took my CRV back to the car starter installer 3 times they couldn’t find the problem and said it was not the car starter. I have a 2013 Honda CRV and I was hesitating taking back to dealer because I thought for sure it was the car starter but after reading other postings I think I should have the dealer look at this problem.

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tom April 18, 2014 at 3:44 pm

2012 CRV bluetooth buzzing sound on recieving end ..have your dearler look at honda technical bulliten 12-070 for update on software in car ..it took care of my problem ..I have I4

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Francisco Munoz May 9, 2014 at 1:46 pm

I have the same problem, the worst thing is that I exported my car to Costa Rica and am not covered with any kind of warranty. I ran a diagnostic in my car and called the dealer in Daytona, by doing my own research, entered to the diagnostics mode in my car navy, and ran couple tests and almost 50% of the time I was getting a Hardware error “2707 mic diag” and also in the screen the mic component shows as red telling that is erroring out, also when running a mic test without the phone attached to the car and a complete silence in the car interior, the mic noise saturates himself, some other tests I ran it was working fine… so then called the dealer in Daytona and they say they know the issue and that they have exchanged several microphones and that solved the problem…. another workaround I used was doing several little punches to the mic while was showing the error and it worked fine and also covered the mic for 30 seconds and this seems to fix the problem for a while (I think this is because the mic get saturated with feedback noise)… anyway hope it works for you guys in case you are still having the issue… the replacement part seems to be 39182-SMA-003 and I have several pictures of the process I followed and if you need assistance I can show you how to run the diagnostics on your own.

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steve May 26, 2014 at 6:45 pm

I work at Verizon and just had a customer come in with the same issue and Honda had directed her here. Armed with this thread she’s on her way back to the dealership

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ken August 5, 2014 at 7:08 pm

I have a Honda CRV 2010 and having problem with the Bluetooth. Background noise on the receiving end and I get complaints all the time. I told the dealer and I was asked to change the cell phone. I kept on changing the phone and now have 4G but the problem is not solved. Honda Corporate Customer service tells me that they have not tested my model and so can not vouch for good connection. I have an extended warranty but have detectable. Neither dealers or Honda are of any help.
I too have problem with my navigation
I am at wits end. Any help?

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Francisco Munoz August 5, 2014 at 7:44 pm

I had the same problem with my car (please read my comment on may 9th). I bought the spare part for my 2012 crv and solved the problem myself, it took almost 3 hours to do the replacement, I have about a month with the new mic and the problem seems to be solved, the dealer in Daytona told me that they thought this was the fix I needed and now I can confirm it. Tell your dealer to replace your mic and show him the comments on this forum, as far as I understand the dealer in Daytona have already replaced several units solving the problem, in my case I was not able to claim warranty since I exported my car to Costa RIca and the warranty does not apply down here, but still is just about $90 for the part.

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Francisco Munoz August 5, 2014 at 7:47 pm

Forgot to mention, this have nothing to be with your cell phone, I ran the diagnostics on my car navigation system and it clearly showed how the microphone was throwing errors, and also in the sound test it was getting saturated…. one thing I tried as part of my troubleshooting was punching the mic carefully and sometimes the issue went away… and also… it happens with multiple cell phones… so doesn’t make sense that all cell phones are broken!

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David August 21, 2014 at 1:08 pm

Turn off your WiFi on the phone. That should fix it.

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Leanne August 21, 2014 at 1:25 pm

Thanks for the post and follow-up resolution. I just bought a pre-owned Acura TSX sportwagon last week and tried out the Bluetooth/Handsfree feature last night. My caller said the buzzing was terrible. Since he was in the house and I was in the driveway, he walked out to let me listen. At that point I decided it wasn’t going to be worth it to use the feature. But, if it’s just a microphone replacement (and I still have 31,000 miles remaining bumper-to-bumper warranty) I think I’ll take her into the shop! Thanks again for the post!

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Judy August 23, 2014 at 4:34 pm

Had my remote car starter antenna moved away from center as suggested by Honda Dealer – still had problem. Took 2013 CRV back to dealer called him at his service desk and he finally concluded to change out microphone. Since then knock on wood all is good!!

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