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Triple Honk when powering down car...

9475 Views 22 Replies 15 Participants Last post by  JC Volt
Earlier today I ran through the drive-thru at Dunkin and then parked for a moment to get situated before taking off again. My fresh coffee was cold, so I shut down the car to go inside and get it replaced.

The instant I turned off the car, it startled me a bit with the dreaded "triple honk"...

There were no messages on the DIC or anything. I was able to lock and then unlock the doors with the button on the handle, and it started back up fine, without any messages about the remote or anything. Random anomaly, or was it trying to subtly tell me something? :confused:

Edit: I should note that all the doors were closed when I shut it off, as usual.
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I’ve had my 2012 Volt honk at me unexpectedly when I undo my seatbelt intending to get out of the car (I sometimes undo the belt but leave it running to make notes on display and odometer readings), then shut it off, then open the door, then change my mind and shut the door and it honks... probably a fob-left-in-car reminder... so if you think it through, do you remember doing anything out of sequence at the time, e.g., perhaps you started to open the door as you were turning the car off??? Perhaps you did undo your seatbelt before turning it off on that particular day???
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