What does a Double Beep alert mean? - Mercedes GLA Forum
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post #1 of 17 Old 03-19-2016, 07:23 PM Thread Starter
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What does a Double Beep alert mean?

I have a 2015 GLA for almost 1 year. Today a double beep warning alert started. It did it after I started the car and was driving for about 10 minutes and was mildly accelerating. It happened again a second time later in the day under the same conditions. There are no visible warning lights on the dash and I cannot detect any systems failing while driving. Any one have an idea of what the beeps might be?
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post #2 of 17 Old 03-19-2016, 07:30 PM
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Could it be the collision avoidance? Most of the time they make sense lie a car change lanes but once I've had one alert from it that made no sense (other than possibly a slight rise in the road?).
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post #3 of 17 Old 03-19-2016, 07:58 PM
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If you're getting no other visible alert in the driver dash display, perhaps it's something accessing your COMAND system. Do you have text messaging set up from a smart phone, for example?

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post #4 of 17 Old 03-20-2016, 05:24 PM Thread Starter
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I think I might have found the source of the double beeps. After scrolling through the dash screen settings, I discovered the Audible box was checked for Automatic Locking Doors. I unchecked that box and the beeps did not occur today.

I am not the only driver of this car so someone may have changed the settings.
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post #5 of 17 Old 03-21-2016, 01:35 PM
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Odds are it is the collision avoidance system. Numerous reports in this forum of random false collision warnings.

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post #6 of 17 Old 03-25-2016, 05:04 PM
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I have had beeps happen a few times now. There is a quick flash of red in the lower left quadrant of dash, I have not yet researched what it might be? It happens randomly but I have been all alone on the road no cars close and probably doing maybe 50 ish. The noise startles me and I have no idea why it does it.

Was going to try to get to the dealer to ask them.
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post #7 of 17 Old 06-13-2016, 02:41 PM
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I get this alert. It is the collision avoidance alert. I have definitely had some, what appear to be false, alerts. Not sure if they were in fact real, like a bird or something, definitely no vehicle nearby. I hadn't thought about a road bump or rise to trigger it, but will keep that in mind. I have not reported it yet to dealer since I can't substantiate it. Was thinking that if I had a dashcam, it might be able to provide support. (or am I just looking for an excuse to buy a dash-cam?!)
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post #8 of 17 Old 06-16-2016, 09:16 AM
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I had my double beep today,but it was a e-mail notice.
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post #9 of 17 Old 06-16-2016, 11:21 PM
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I have definitely had several false collision avoidance alerts. I have a similar system in my 2015 Yukon and get false ones on that vehicle as well. Here is what I've found can trigger them:

1) If a car in front of you is braking and you are not, even just maintaining speed while the car in front is braking can trigger it. Even at a safe distance.
2) Bright sunlight into the system, or bright reflections at the front of the car, will cause this issue. Especially if they suddenly appear.
3) On rare occasions, shadows can do it too, but this I've found to be uncommon.

Hope this helps...

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post #10 of 17 Old 06-17-2016, 02:16 AM
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Unless I missed it, nobody mentioned those GLAs with Blindspot Assist...it also makes an audible double beep with a simultaneous red warning on the left or right mirror when attempting to change lanes.

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