"Hybrid System Malfunction" while in a car wash

Discussion in 'Gen 4 Prius Care, Maintenance and Troubleshooting' started by KieferSkunk, Jun 5, 2016.

  1. KieferSkunk

    KieferSkunk Technogeek

    Joined:
    Apr 16, 2007
    60
    25
    0
    Location:
    Seattle Region
    Vehicle:
    2016 Prius
    Model:
    Three
    Hi guys. I took my 2016 Prius 3 through a brushless car wash this afternoon, and about halfway through, the warning light came on and the car displayed "Hybrid System Malfunction // Visit Your Dealer". Has anyone had anything like this happen to them? The car seemed to drive normally from there back to home, so the system is evidently still working - just getting the message on the screen every few seconds.

    Given that it happened while I was in the car wash, I'm wondering if it's just that some water got under the hood and tripped a sensor or something. The car was not idling at the time.

    I had my 5K service appointment scheduled for tomorrow anyway, but now the dealer wants to have the car there all day. They're giving me a loaner, so that's nice. Still, a little concerning that this is happening so soon after I bought the thing.
     
    RCO likes this.
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    92,410
    41,805
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    was it in neutral? was the a/c on? how low did the hybrid battery get? this is common with gen 3.
     
  3. KieferSkunk

    KieferSkunk Technogeek

    Joined:
    Apr 16, 2007
    60
    25
    0
    Location:
    Seattle Region
    Vehicle:
    2016 Prius
    Model:
    Three
    The car was in Park (it's a standing car wash, not a moving one), and the A/C was on. The battery was only down to 5 bars.
     
    bisco likes this.
  4. MrMischief

    MrMischief Active Member

    Joined:
    Jun 8, 2008
    426
    440
    0
    Location:
    Denver CO
    Vehicle:
    2016 Prius
    Model:
    Three
    Took mine through a touchless, stand still carwash yesterday. Had it in park, ICE was not running, had no issue. Please report back what they find.
     
  5. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    92,410
    41,805
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    inverter pump?
     
  6. Mendel Leisk

    Mendel Leisk Senior Member

    Joined:
    Oct 17, 2010
    43,501
    31,160
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    That should be no problem, the car bring stationary. Still, shut down might be safer. Good luck, post the outcome.
     
  7. KieferSkunk

    KieferSkunk Technogeek

    Joined:
    Apr 16, 2007
    60
    25
    0
    Location:
    Seattle Region
    Vehicle:
    2016 Prius
    Model:
    Three
    Well, among other things, I'm thinking I'll be going to a different dealer for future service appointments. They completely screwed up the schedule and caused me an unnecessary three-hour disruption since they didn't have a loaner car available and didn't even know about my call yesterday. :p Had issues with this dealer before (it's the one where I bought the car). And that's not all.

    They did run the codes on the car, but according to them, it didn't tell them anything definitive, so their "best guess" is that I'd "left the key in the car for a long period of time." The tech advisor then said "Well, if you left the car in Accessory mode for a long period, it would turn itself off...". I had to explain, THREE TIMES, that no, I was sitting in the car with it ON and in Park the whole time, the battery was at 5 bars, and when the car wash was done, I shifted it back into Drive. At no point during this process did I touch the Power button. Still no idea, just "If you see it happen again, call us and we'll set up another appointment."

    No, I think that if I see it again, I'm going to call someone ELSE and set up an appointment.


    I have a suspicion as to what it might be, though, and at some point I'm going to try a test to see if it's what I think it is. I recall having shifted into Park and leaving my foot on the brake the whole time I was in the wash (which was about 5 minutes tops). I did that because the Pink Elephant system hates it when the car moves while the wash is in progress. Now, Toyota Corporate sent me a notice a couple weeks back saying that there's a known issue with the brake assembly that might cause a warning light to appear (they emphasized that it's not a safety issue). This came in as an "extended warranty" - after the standard warranty runs out, they would extend the warranty on this particular condition until I hit 150,000 miles.

    So I wonder if this was that condition. If so, I should be able to repro it by just sitting in Park with my foot on the brake for a few minutes, and that would rule out the car wash as being a factor. I think that's the only time I've sat in one spot with the brake down (as opposed to the parking brake) for more than a minute.
     
    RCO likes this.
  8. eric1234

    eric1234 Active Member

    Joined:
    Jun 8, 2008
    389
    197
    0
    Location:
    Hamden, CT
    Vehicle:
    2016 Prius
    Model:
    Three
    Can you please scan and post a copy of this letter? I haven't received any such notice, and am very interested to see what it says. Thanks.
     
    Elt31987 and MrMischief like this.
  9. KieferSkunk

    KieferSkunk Technogeek

    Joined:
    Apr 16, 2007
    60
    25
    0
    Location:
    Seattle Region
    Vehicle:
    2016 Prius
    Model:
    Three
    I'll try to get to that in the next day or two. Being the on-call at my work takes up too much time. :p
     
  10. xerox914

    xerox914 Junior Member

    Joined:
    Apr 15, 2016
    16
    5
    0
    Location:
    san francisco
    Vehicle:
    2016 Prius
    Model:
    Two
    i have this issue 2nd time this week. I left my engine on , left on Park , and stepping on the brake whole time. I have to turn off/on engine. Any updates on this??
     
Loading...