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  1. Amjad Latif Amjad

    Amjad Latif Amjad New Member

    Joined:
    Feb 20, 2017
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    Vehicle:
    2008 Prius
    Model:
    Touring
    Please guide me about Ev button function

    Posted via the PriusChat mobile app.
     
  2. JimboPalmer

    JimboPalmer Tsar of all the Rushers

    Joined:
    Apr 14, 2009
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    Location:
    Greenwood MS USA
    Vehicle:
    2012 Prius v wagon
    Model:
    Three
    Unless you have a plug-in, this should apply.

    The North American Gen 2 2004-2009 did not have an EV button, some other markets did.

    The EV button can be useful if you need to move a Prius within a parking lot, or you need to get home silently from perhaps one block away. In general, however, it will get poorer mileage over all than just letting the computers decide when to use EV.
     
  3. Tideland Prius

    Tideland Prius Moderator of the North
    Staff Member

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    Oct 2, 2004
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    Location:
    Canada
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    Other Non-Hybrid
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    N/A
    It's typically used in the following situations (not an exhaustive list but at least it gives you an idea)

    • Moving your car a short distance (e.g. from one carpark space to another carpark space)
    • Moving inside an enclosed area (e.g. underground carpark)
    • You know you're going to travel down a steep mountain and you want to use a little bit of battery so that you have more space to recharge when you travel down the hill (delays the use of your brake pads if you can use the electric motor to charge the battery. Once the battery is full, the car will revert to the brake pads to slow the car down).

    Note that excessive or poor use of the EV Drive Mode button can increase fuel consumption because the car's computer likes to keep the battery charge at 6 bars on the display (that's about 60% real state of charge). If you drop it below, the engine will come on to recharge the battery so you may end up using more fuel in the end.
     
    Aaron Vitolins likes this.