S-Class (W222) 2014-2020

Single Beep, ten seconds apart ???

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Old 02-18-2021, 03:30 AM
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2016 S550, 2015 Honda Civic Hybrid
Single Beep, ten seconds apart ???

While enjoying the winter storm/power outage here in Austin, we noticed that our S550 was beeping for no apparent reason. One beep, every ten seconds or so, all day long.

Got in and turned it on and no warning lights or error messages. No doors ajar or other obvious issues.

I have an oak limb lying across the driveway (and the roads are still icy), so won't be driving anytime soon, but just curious what in the world the beeping could be about.
Old 02-18-2021, 09:38 AM
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I've not heard of that specifically. Have you checked battery health? Perhaps a battery maintainer (assuming power is on) would be a good idea.
Old 02-18-2021, 10:12 AM
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2014 S550 AMG, 2017 XT5
Possibly Alarm was tripped and this is a reminder that the Alarm went off?

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