[Poll] "Clean Parking Assist Sensor" and Intelligent Clearance Sonar Issue??

Discussion in 'Prime Care, Maintenance and Troubleshooting' started by psoque, Sep 3, 2017.

?
  1. I’ve never had any problems

    34.5%
  2. It mostly works with occasional hiccups

    55.2%
  3. It’s worse than useless

    10.3%
  1. SydneyNJ

    SydneyNJ Junior Member

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    2018 Prius Prime
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    Plug-in Advanced
    In my case, cleaning was not a factor because I didn't anything to the car (wipe, clean, wash...) after I received that
    warning message. It just went away after getting a sun tan.
     
    jjs357 likes this.
  2. jjs357

    jjs357 Junior Member

    Joined:
    Aug 7, 2004
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    Location:
    Near Philadelphia PA
    Vehicle:
    2020 Prius Prime
    Model:
    Limited
    This happened to me on the way home after buying the car (2020 Prime Limited) -- never drove it before this. The warning came on and stayed on during heavy rain and just before arriving home the warning disappeared. Had the car now 3 weeks and no re-occurrence of the warning. This was quite unnerving after just taking delivery. Somewhat useful to learn that this has occurred for others and that it can/should disappear after drying out.
     
  3. Blauer Glimmer

    Blauer Glimmer Active Member

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    2017 Prius Prime
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    Prime Advanced
    It happened to me in a heavy rainstorm shortly after I bought the car last year. Once it dried out, it never happened again in the rain. Snow, ice & salt are another story, but that means the sensors are actually dirty and need to be wiped off.
     
  4. SydneyNJ

    SydneyNJ Junior Member

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    2018 Prius Prime
    Model:
    Plug-in Advanced
    Is this the exterior of the car or part of the car that you can't see where the sensors are? You or the people who refer this problem as having "dirty sensors". You guys must be referring to somewhere I can't see because my car wasn't dirty at all on the exterior.
    Like I said, I didn't even wash, wipe or clean the exterior when I got the warning. It just went away on its own.

    2020 Prime Limited Edition with only 3 weeks old, yeah I'd be too ...
     
    #44 SydneyNJ, Aug 21, 2019
    Last edited by a moderator: Aug 21, 2019
  5. SydneyNJ

    SydneyNJ Junior Member

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    2018 Prius Prime
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    Plug-in Advanced
    I am going to stop by a local Toyota dealer this weekend and ask them about this. Though I don't have
    a high expectation to get the real answer. They probably will ask me to contact Toyota Head Qtr
    which they may not even know the real answer either. Getting the right info from them can be
    difficult. Try ask/talk to them about different home charging options, cable, power outputs
    for the Prime.
     
    jjs357 likes this.
  6. schja01

    schja01 One of just a few in Chicagoland

    Joined:
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    Chicagoland
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    Prime Advanced
    They are those nickel sized circular things on your front and rear bumpers. Different trim levels have different numbers of them. My Advanced has 12.
     
  7. SydneyNJ

    SydneyNJ Junior Member

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    New Jersey
    Vehicle:
    2018 Prius Prime
    Model:
    Plug-in Advanced
    Yes, I'm aware of those 'circular" thing on the front/back bumpers. But what I'm really asking is this: when the
    message "Clean Parking Assist Sensor" is displayed, is it asking you to wipe/clean these 'ciricular' spots on the plastics?
    I didn't doing anything. I didn't touch them/wipe/clean any of them. There was NOTHING to clean after driving
    through the heaving rain this past Monday.
     
  8. Blauer Glimmer

    Blauer Glimmer Active Member

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    2017 Prius Prime
    Model:
    Prime Advanced
    Let me clarify: the first time it happened, the sensors were not dirty. It was due to the heavy rainfall. That was the cause only once. The next time it happened, I was driving in dirty, slushy snow, and the sensors actually were dirty. Wiping them off solved the problem. Check the manual for sensor placement.
     
  9. SydneyNJ

    SydneyNJ Junior Member

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    2018 Prius Prime
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    Plug-in Advanced
    Well I guess I shall find out next time when I go through heavy downpours.

    See if this warning comes on again.
     
  10. Blauer Glimmer

    Blauer Glimmer Active Member

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    Prime Advanced
    It may never happen again for that reason, but you may have to clean them in the Jersey snow
     
  11. Tha_Ape

    Tha_Ape Member

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    Washington, DC
    Vehicle:
    2017 Prius Prime
    Model:
    Plug-in Advanced
    Happened to me again... (I've had it happen twice before)

    Car was parked and it rained. I got in the car (not raining) and it was beeping at me saying I was too close to something in front of me (nothing in front of me). Then I got the clean sensors message. Went out and wiped both front sensors (does the w- band radar play a role? ) and it didn't do anything. They weren't dirty to begin with too be honest.

    After driving for a few minutes it went away and every thing is back to normal.

    I wonder if water is getting in somewhere and shorting a circuit? What could be causing this?
     
  12. PurcellvillePinball

    Joined:
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    Vehicle:
    2017 Prius
    Model:
    Four Touring
    I have owned my 2017 Prius since December 2016. Every time it rains a lot, I get the long beep then "ICS Unavailable" and then the photo below for the remainder of the trip. I wipe all the sensors off when I stop, which could be several minutes or hours, and sometimes it goes away and sometimes it does not. The next day, when dry, it works fine.

    My concern, as others, is, you would think it would work all the time, especially in the rain. When it does rain is when I trust my car the least. It appears my blind spot monitors still work but I am not sure exactly what is working and what is not working. In heavy rain, I do not turn on cruise control since I want to be in control of the car, so not sure if this is affected. The other issue is, you can't hit the back button to remove the message since it will just show up a few minutes later.

    Wouldn't be nice if when this message came up, the sensor in question was red or some indication of which sensor is having the problem?



    ToyotaPriusICS.jpeg
     
    Mendel Leisk likes this.
  13. Tha_Ape

    Tha_Ape Member

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    2017 Prius Prime
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    Plug-in Advanced
    Yes, but that display doesn't really mark the sensor locations. There's not one in the center of the bumper (the radar is a separate system). It's more just a representation of the system.

    There are 2 facing forward, 2 on either side of the bumper facing ~45deg, 2 on the fenders,
    2 on the side of the rear bumper near the quarter panels, 2 on either side of the rear bumper facing ~45deg, and 2 on the rear bumper facing backward.

    I agree it should ID the sensor though. I haven't had an issue since I last posted, but whenever it happens, water is always involved and the sensor is clean
     
    vvillovv likes this.
  14. PurcellvillePinball

    Joined:
    Jun 28, 2008
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    Location:
    Purcellville, Virginia
    Vehicle:
    2017 Prius
    Model:
    Four Touring
    My wife has a 2017 hybrid rav 4. She has never had this issue. She thinks I’m having problems because the Prius rides lower to the ground and gets more grime and dirt from the road when the rain splashes on the sensors. Just a thought.
     
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