There is no actual pedestrain alert. There is basically a noise generator below a certain speed, I want to say 12 MPH I am not sure the exact speed. Start up your 2018 Volt, have the radio and climate controls off, roll down the driver window, put the car in reverse, you should notice the noise. When I first heard it on my 2018, I thought there was something wrong with the car, its kind of a low pitch grumbling noise. At first it sounded like a bearing going out, but once I realized what it was, it never bothered me again.
Alert sound is only active when driving less than 20mph. Going over 20mph will disable the pedestrian alert sound. Though, even with the sound going on, some people still dont hear me when its loud outside. Would be nice to be able to turn on our engine at will incase people cant hear us.
I wonder how many accidents have occurred in parking lots between pedestrians and cars because of the quietness of the cars, not near-misses. Hopefully, not many. I haven't heard the pedestrian warning sound produced by the Gen2's, however, I do like the muted (strangled) horn toot, toot that the Gen1's produce.
Mine would make noise anytime the car was in gear, but I'm guessing it turned off when up to a certain speed. I didn't like the noise though, so I pulled the fuse in the trunk. To me it sounded like I had a wheel bearing going out, or maybe I was dragging something under the car.
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