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2021 TB Zues Bronze Activ
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Discussion Starter #1
Wife drives the TB. She has noticed like 5 times now in the last week that when she has the radio on and hit the brakes, when she hits them there is a audible pop coming through the radio. She has noticed when playing FM radio , don't know if it does it while using blue tooth or other methods of playing music.
 

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2021 Trailblazer Activ Zeus Bronze Metallic (+ 2016 Cadillac CTS)
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There is a switch associated with the brakes that makes a "click" noise when depressing the brake pedal. Is that perhaps what you're hearing? Or is it definitely coming through the stereo?
 

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2021 TB Zues Bronze Activ
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Discussion Starter #3
Wife says it is coming through radio system and is loud. I have not driven it to see if I hear it. She says it is like a POP noise.
 

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2021Trailblazer RS AWD Scarlet Red Metallic
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Our brakes are electric "brake by wire" with a vacuum pump for assist instead of engine vacuum so it sounds like the radio is picking up interference from the brake system. I'm curious is if happens on AM, FM and what frequency?

Steve
 

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2021 TB Zues Bronze Activ
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Discussion Starter #5
Wife says she is listening to FM radio. Seems only to do it when putting car into gear or park when you hit the brakes and move shifter lever at the same time. She says it has not done it in just stop and go driving.
 

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Had this happen this morning. I had to hit my brakes , not too hard as my crash assist thing went off, red lights flashing etc. then I drove a little bit after , came to a stop and my car shut off with the auto shut off. When I resumed to drive a very loud popping noise sounded and seemed like it was over the radio. Did not appreciate the scare. I had it on satellite radio.
 

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2021 TB Zues Bronze Activ
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Discussion Starter #7
We have not heard it in awhile now but sure sound like you have the same issue. Common thing is hitting the brakes that causes it.
 

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Had this happen this morning. I had to hit my brakes , not too hard as my crash assist thing went off, red lights flashing etc. then I drove a little bit after , came to a stop and my car shut off with the auto shut off. When I resumed to drive a very loud popping noise sounded and seemed like it was over the radio. Did not appreciate the scare. I had it on satellite radio.
Well we have had ours do it several times now so I CR on here to see if anyone has complained or found a fix. Apparently it scared the poop out of the wife yesterday.

shawn
 

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2021 TB Zues Bronze Activ
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Discussion Starter #9
What mode was she in? am/fm radio, sat radio, wireless connection to music on a cell? Did it happen when she hit the brakes? Driving along. We need to try to get a sense of when it happens.
 

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2021Trailblazer RS AWD Scarlet Red Metallic
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The best thing anyone can do who is having this problem or any other problem is report it to NHTSA which is where most recalls and TSB's (technical service bulletins) originate. CR also helps, but most manufacturers follow NHTSA very closely for new problems.

Steve
 

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2021 TB Zues Bronze Activ
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Discussion Starter #11
CR?
 

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2021Trailblazer RS AWD Scarlet Red Metallic
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2021 TB Zues Bronze Activ
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Discussion Starter #13
Well then there are a few of us already that could report this. Again I think we need to document the best details to when and what you are doing when it happens.
 
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Discussion Starter #14
I reported this to the NHTSA .
 
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