EV Switch ?

[tntna]

Is the OEM EV switch the type that will stay on all the time or is it the type that once the ICE has kicked on and you want to go back to EV mode, the EV switch needs to be hit again? Would be nice if its a one hit and the functionality remains on.

[finman]

I believe the EV function works the same on all Prius, whether you install it yourself (US) or the factory does it (Japan, Europe).

When I engage mine (flash the headlite lever), it beeps once and MFD switches to the Energy screen (where the battery level is shown). It then will stay in EV mode up to 34 MPH OR until you're down to 3 bars on the hybrid battery, at which point the gas engine kicks on automatically. Also, if I am accelerating too fast or trying to pull a pretty good hill, the gas engine automatically kicks on.

I can also turn off the EV mode manually by flashing the headlite switch again. The engine then fires up.

The whole system of protecting the battery pack and ensuring the engine is warmed (for emissions) is cool! If I try to engage EV mode with lower than 3 bars or with a cool engine or for other reasons that I'm not privy to, then it beeps 3 times at me and will not engage EV.

Love the extra geek feature of EV mode! I mainly use it in the morning to delay the engine start until I'm on a 35 MPH roadway. Then I use it at the end of my commute in my work parking lot. Plus at the grocery store it's awesome to cruise in EV mode and watch the heads turn to see how that car is moving with no sound.

[htmlspinnr]

OEM functions just like described in the EU/Japaneese owner's manual.

If under the right conditions, it will stay in EV until extra power is required based on accelerator pedal position, battery level is too low, or say heat is required from the ICE. Pushing it will toggle the mode provided the car has warmed up and the above conditions have been met. If you've pushed the button to circumvent warmup, then you cannot toggle back to EV until the car has warmed up completely and the battery level is sufficent (usually above 2 or 3 bars on the Energy screen).

[bruceha_2000]

I think the original question is still unanswered:
You are humming along at 30 in EV button mode. The ICE kicks in when you go 40 MPH for a while then you go back on a 30 MPH street.

Would you have to reengage EV mode, or has it remembered that you started out in EV and will ALWAYS use EV when possible?

[ozt]

When the EV mode has been automatically canceled with three beeps, it won't go back to the EV mode again if the condition (speed, batt level, heat etc.) is cleared.

Tosh
04 Salsa BC
San Diego, CA

[tntna]

<div class='quotetop'>QUOTE(bruceha_2000\";p=\"53911)</div>

I think the original question is still unanswered:  
You are humming along at 30 in EV button mode. The ICE kicks in when you go 40 MPH for a while then you go back on a 30 MPH street.  

Would you have to reengage EV mode, or has it remembered that you started out in EV and will ALWAYS use EV when possible?
[/b]

Yep that's what I was asking. Thanks for clarifying.

<div class='quotetop'>QUOTE(ozt\";p=\"54036)</div>

When the EV mode has been automatically canceled with three beeps, it won't go back to the EV mode again if the condition (speed, batt level, heat etc.) is cleared.  
[/b]

Ok bummer. The 34 miles per hour is cool though. Still going to do it.

Let me see if I understand the process though. From what I've read in this thread, there's an EV switch which goes next to the dimmer for the dash/MFD. Sounds like this is a master switch to turn EV mode on, just like there's a master switch for cruise control? To actually engage the EV function, you have to use the headlight lever? Pull it forward? That makes some sense to have a fail safe switch to turn the system off.

<div class='quotetop'>QUOTE(finman\";p=\"53901)</div>

Love the extra geek feature of EV mode!... Plus at the grocery store it's awesome to cruise in EV mode and watch the heads turn to see how that car is moving with no sound.
[/b]

Yes the first gen Prius runs off the battery longer then the second gen which is why I want the EV switch. I love cruising the grocery store or driving away on battery power in the 2001 and have people stare.

[efusco]

Let me see if I understand the process though. From what I've read in this thread, there's an EV switch which goes next to the dimmer for the dash/MFD. Sounds like this is a master switch to turn EV mode on, just like there's a master switch for cruise control? To actually engage the EV function, you have to use the headlight lever? Pull it forward? That makes some sense to have a fail safe switch to turn the system off.

Nope, that button engages and disengages EV mode. There are a number of means of installing an "EV Button"--some use the cruise control stalk, some use the Flasher, some use the OEM button, some use a Radio Shack button. If you get an OEM EV button that's all you need.

[tntna]

<div class='quotetop'>QUOTE(efusco\";p=\"54092)</div>

Nope, that button engages and disengages EV mode.  There are a number of means of installing an \"EV Button\"--some use the cruise control stalk, some use the Flasher, some use the OEM button, some use a Radio Shack button.  If you get an OEM EV button that's all  you need.
[/b]

Oh good. I think. I'll have to search the threads to see what comes with the OEM button. Would be nice if it came with a wiring harness so there isn't any splicing.

[efusco]

<div class='quotetop'>QUOTE(tntna\";p=\"54108)</div>

<div class='quotetop'>QUOTE(efusco\";p=\"54092)

Nope, that button engages and disengages EV mode.  There are a number of means of installing an \"EV Button\"--some use the cruise control stalk, some use the Flasher, some use the OEM button, some use a Radio Shack button.  If you get an OEM EV button that's all  you need.
[/b]

Oh good. I think. I'll have to search the threads to see what comes with the OEM button. Would be nice if it came with a wiring harness so there isn't any splicing.
[/b][/quote]Have you looked in the Knowledge Base yet?? There are 2 write ups there that will tell you all you need.

[tntna]

I took a quick look earlier this morning after seeing your msg about the writeups. Sounds like a wiring harness doesn't come with the OEM EV button. I'll have to read the writeups in more depth and read some of the msg threads.