"Key Not Detected" when someone gets into or out of the car in Ready mode

Discussion in 'Gen 3 Prius Technical Discussion' started by taupehat, Mar 23, 2019.

  1. taupehat

    taupehat Junior Member

    Joined:
    Jun 24, 2014
    10
    4
    0
    Location:
    Santa Rosa, CA
    Vehicle:
    2013 Prius
    Model:
    Two
    First thing I did was change the fob battery which at the time was less than a year old, so I don't think that's the issue.

    The issue happens very frequently and started about a month ago: someone will get into and out of the car, in park and in ready, and after the door shuts I get a beer and that warning, which clears after thirty seconds. I've tried moving the key around, leaving it in the cupholder, etc but nothing seems to do the trick. It's very annoying.

    I saw someone on another thread posting that the hatch not being fully closed will do that but I don't see the cargo light on (it does work) so I don't know that that's the issue. Help!
     
  2. fuzzy1

    fuzzy1 Senior Member

    Joined:
    Feb 26, 2009
    11,809
    5,485
    90
    Location:
    Western Washington
    Vehicle:
    2012 Prius
    Model:
    Three
    Ignore the lack of the cargo light being turned on. Recheck that the hatch is securely closed anyway.

    If everything made sense in the first place, that wouldn't be the warning message for a loose hatch.
     
    taupehat likes this.
  3. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    77,032
    32,385
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    if you're getting a beer, check the 12v health
     
    taupehat likes this.
  4. taupehat

    taupehat Junior Member

    Joined:
    Jun 24, 2014
    10
    4
    0
    Location:
    Santa Rosa, CA
    Vehicle:
    2013 Prius
    Model:
    Two
    Oh my. I'm having a beer right now. The BEEP happens at the same moment as the key not detected warning appears so I figured it's just an attention beep.

    I'll check tomorrow (after no beers) and see if I can manipulate the hatch and reproduce the issue.
     
    bisco likes this.
  5. Grit

    Grit Senior Member

    Joined:
    Aug 22, 2017
    1,599
    1,415
    1
    Location:
    BOY
    Vehicle:
    2012 Prius
    Model:
    Four
    What about the dark red wine people ?
     
    taupehat likes this.
  6. taupehat

    taupehat Junior Member

    Joined:
    Jun 24, 2014
    10
    4
    0
    Location:
    Santa Rosa, CA
    Vehicle:
    2013 Prius
    Model:
    Two
    I am unable to reproduce the error. I deliberately left the hatch improperly shut, out the car in ready next, and had somebody get into and out of the car at all doesd. No such error.

    Aside from it being maddeningly intermittent the fact that this just started up about a month ago concerns me.
     
  7. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    77,032
    32,385
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    in what way?
     
  8. taupehat

    taupehat Junior Member

    Joined:
    Jun 24, 2014
    10
    4
    0
    Location:
    Santa Rosa, CA
    Vehicle:
    2013 Prius
    Model:
    Two
    Can you be more specific?
     
  9. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    77,032
    32,385
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    why are you more concerned that it started about a month ago?
     
  10. taupehat

    taupehat Junior Member

    Joined:
    Jun 24, 2014
    10
    4
    0
    Location:
    Santa Rosa, CA
    Vehicle:
    2013 Prius
    Model:
    Two
    Because in a car with 150,000 miles, any change of behavior is of concern.
     
    bisco likes this.
  11. FuelMiser

    FuelMiser Active Member

    Joined:
    Jun 29, 2008
    693
    458
    0
    Location:
    Monument, CO
    Vehicle:
    2016 Prius
    Model:
    Touring
    Have you checked your 12V yet? Try another battery in your fob. Is there any damage to your fob (dropped it)? Can you try a second fob? Make sure you're familiar with getting into the car with the mechanical key and starting with a dead fob (place the fob over the power button) in case you get locked out.
     
  12. The Electric Me

    The Electric Me Go Speed Go!

    Joined:
    May 22, 2009
    8,234
    4,635
    0
    Location:
    Undisclosed Location
    Vehicle:
    Other Non-Hybrid
    Model:
    N/A
    Even though you replaced it...I would try another fob battery. Sometimes you can get a "bad" new battery, or one that has sat on a shelf a long time.
    Cheapest, easiest first step. Might not be the answer but it could be, and it's a cheap easy investment. Worst case? Issue NOT solved but you for sure know it isn't the fob. Best case? It works and mystery solved.
     
  13. taupehat

    taupehat Junior Member

    Joined:
    Jun 24, 2014
    10
    4
    0
    Location:
    Santa Rosa, CA
    Vehicle:
    2013 Prius
    Model:
    Two
    I found the problem. Turns out when my phone is in the Qi charger mounted on the vent to the left of the steering wheel and I open then shut the driver's door I get the problem almost 100% of the time. Take the phone out of the charger, not a problem. :cautious:

    Dang, I really like this charger and where it's mounted. I'll try repositioning it to another vent and see if that helps.
     
  14. magnumrtawd

    magnumrtawd Member

    Joined:
    Feb 16, 2013
    260
    50
    0
    Location:
    Toledo,Ohio
    Vehicle:
    2010 Prius
    Model:
    III
    My 2010 did that several times on the way to church last week, My wife's key fob was in her purse as always. First time in 8 years and hasn't done it since.
     
Loading...