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Pedestrian Warning Sound

Posted: Tue Jun 30, 2015 3:09 pm
by gd1
I have a 2015 B-Class and it shows in the standard features a Pedestrian Warning Sound (Code B53). I can't find any other description or documentation on-line, in the vehicle manual on the screen or the printed manual. does anyone know what this is and what it does? I had a Volt for 3 years and I had a 'friendly' horn and a regular horn and I thought this is what it was, but I can't figure it out.

2015 B-Class
Universal Blue

Re: Pedestrian Warning Sound

Posted: Tue Jun 30, 2015 4:23 pm
by northernlights
This is a ticking sound that is made when the car is started up until it reaches some threshold speed. I didn't notice it until my wife was pulling out of the garage and I was in the outside. perhaps roll down the windows next time you start up to listen for it.

Re: Pedestrian Warning Sound

Posted: Tue Jun 30, 2015 4:55 pm
by Stretch2727
Yes noticed when my wife pulled away from the house. It shuts off at 20 MPH. (I read somewhere in the manual.) I would say is more of a whirling sound. Like a high pitched fan. I also noticed it shut off.....yes she was past 20 MPH by the time she got to the point I was standing. She is a lead foot but that is another story.....

It is designed so you can't hear from inside the car.

Re: Pedestrian Warning Sound

Posted: Fri Apr 02, 2021 8:20 am
by Woosty
Has anyone manage to locate this and change it for a better ‘tune’? Must be possible I suppose