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Gas engine sometimes starts in EV mode

Discussion in 'Gen 1 Prius Plug-in 2012-2015' started by R. Barre, Mar 31, 2015.

  1. R. Barre

    R. Barre New Member

    Joined:
    Mar 9, 2015
    19
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    Location:
    Los Angeles
    Vehicle:
    2015 Prius Plug-in
    Model:
    Plug-in Advanced
    On occasion - not frequently - I'll notice the gasoline engine kicking in when I'm in ECO/EV mode with plenty of EV battery left. Today it happened on a relatively flat street, going maybe 30 mph, without the a/c or anything else on, and about 7 miles left on the EV battery indicator. In less than 30 seconds it went back to pure EV and the gasoline engine never kicked in again.

    Why does this happen?

    Thanks in advance ...
     
    #1 R. Barre, Mar 31, 2015
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    107,762
    48,974
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    there are 14 reasons why the engine might fire up when not specifically called for. you can find them in the faq sticky. take your pick.:)
     
    #2 bisco, Mar 31, 2015
  3. usbseawolf2000

    usbseawolf2000 HSD PhD

    Joined:
    Sep 22, 2004
    14,487
    2,994
    0
    Location:
    Fort Lee, NJ
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    Too cold? Has it been 124 EV miles since you used the ICE?
     
    #3 usbseawolf2000, Apr 1, 2015
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