PWS system in I-pace....how noticeable is it? - Jaguar I-Pace EV400 Forum
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post #1 of 11 (permalink) Old 02-13-2020, 03:16 PM Thread Starter
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PWS system in I-pace....how noticeable is it?

Referring mostly to within the passenger compartment but also curious as to how loud it is for pedestrians as the car approaches a stop? I've seen various youtube videos but of course most of those are done in a controlled, no-traffic situation. It appears there are different sounds for backing up / decelerating? Any thoughts on all this in general? In a different EV forum some owners have referred to disabling these systems by pulling a fuse and/or cutting wires. Probably not a great idea. Not sure I'd want to be in the situation of having caused an accident (especially involving a hearing or sight impaired person) if it could be proven that the PWS was in some way tampered with.

Last edited by three4rd; 02-13-2020 at 03:19 PM.
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post #2 of 11 (permalink) Old 02-13-2020, 03:33 PM
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That is interesting. I did not realize I was actually making a noise going forward at slow speeds. You definitely hear the beeping when backing up. If it is that quiet to the driver, not sure why anyone would need to disconnect.

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post #3 of 11 (permalink) Old 02-13-2020, 04:05 PM
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At low speeds the car is emitting a gentle multi-tone chord from the front but the only time we can hear it is when we stand outside towards the front of that car and is moving... or if you roll down the windows in the garage while pulling forward.
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post #4 of 11 (permalink) Old 02-13-2020, 04:19 PM
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A hearing impaired person isn't so likely to hear the low speed driving warning anyway. Although I have no idea how loud it is, I admit. Now I'm curious to find out, so I'll have a friend do a low speed drive by.

I've been using the method to keep the car running when I get out for a quick drop off or something (put it in neutral and activate the parking brake), and I've been slightly surprised at the (I guess) battery cooling fan running noise. Depending on how regularly that is on, I'm not nearly as silent running as I supposed. Although I also don't know how much that carries for a pedestrian to hear it (I was standing right next to the driver door preparing to re-enter).

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post #5 of 11 (permalink) Old 02-13-2020, 04:22 PM
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I park in a parking deck at my office. The noise produced at low speeds must not be very loud as I always surprise people when they are not looking around. That never happened in my non-electric car.

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post #6 of 11 (permalink) Old 02-13-2020, 04:27 PM
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The sound is barely noticeable inside the car - even with the radio off. Sounds a little bit like 70s sci-fi :-)
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post #7 of 11 (permalink) Old 02-13-2020, 04:36 PM
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Originally Posted by JHock View Post
The sound is barely noticeable inside the car - even with the radio off. Sounds a little bit like 70s sci-fi :-)
Like a theremin? Ooo-eee-ooo? Lol!
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post #8 of 11 (permalink) Old 02-15-2020, 08:35 AM
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Originally Posted by LauderdaleFE View Post
A hearing impaired person isn't so likely to hear the low speed driving warning anyway. Although I have no idea how loud it is, I admit. Now I'm curious to find out, so I'll have a friend do a low speed drive by.

I've been using the method to keep the car running when I get out for a quick drop off or something (put it in neutral and activate the parking brake), and I've been slightly surprised at the (I guess) battery cooling fan running noise. Depending on how regularly that is on, I'm not nearly as silent running as I supposed. Although I also don't know how much that carries for a pedestrian to hear it (I was standing right next to the driver door preparing to re-enter).
Off topic, but THANKS for the keep the car running tip! I find the shutoff anytime I get out annoying! Start the car to get the cabin heat and windshield defrost going, then get out to clean the snow and OFF if goes!
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post #9 of 11 (permalink) Old Today, 04:00 AM
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Off topic, but THANKS for the keep the car running tip! I find the shutoff anytime I get out annoying! Start the car to get the cabin heat and windshield defrost going, then get out to clean the snow and OFF if goes!
To prevent the car from shutting off, when I exit, I leave it in (D)rive, unclip my seat belt and open the door. The Parking brake engages automatically within a second. Then I exit and do what I have to do. When reentering, disengage the Parking brake.
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post #10 of 11 (permalink) Old Today, 09:08 AM
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You do not need to disengage the parking brake. I found that once you press drive, the parking break will automatically disengage. One less button to push. Lol
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