Honda Service Express Bulletins for 2018 Clarity PHEV

Discussion in 'Clarity' started by AnthonyW, May 31, 2018.

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  1. KentuckyKen

    KentuckyKen Well-Known Member

    I do the same thing.
    “Stay in the blue and no gas for you.”

    Have I become an old fuddy-duddy?
    I only go past high noon on the power meter very rarely when I have a tight merge onto heavy traffic on the expressway. I get plenty of acceleration with EV only around 11:00 to 12:00 (only 1 person in car, level roads and A/C).
    And for the last 3 months I’ve consistently gotten 55-65 actual EV range (DII reporting 60-69 estimated range and I don’t go all the way to 0) depending on how much Interstate miles I do. I’d call my driving style moderate; not Mr MaGoo’s grandma but not Sterling Moss either. (you youngins may have to Goggle him)
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  3. insightman

    insightman Well-Known Member Subscriber

    Manual selection of EV driving mode discussion recap:

    iluvscuba pointed out that the document "Electric Powertrain System Description - Drive Mode 3752.pdf" states "EV driving mode can be manually selected by the driver." Bobcubsfan appropriately asked, "So, how does one select EV mode?"

    The document focuses on explaining the 3 basic driving modes common to all i-MMD hybrids: EV, Hybrid, and Engine, but it never mentions the Clarity by name. Other i-MMD hybrids do allow the driver to select EV Mode. See the 2019 Insight's Mode buttons below:

    ECON Mode in the Clarity prioritizes EV driving mode, but the Clarity's ECON Mode can switch to Hybrid driving mode and start the engine in response to higher loads. The ankle-muscle restraint that jdonalds exhibits in ECON Mode achieves the closest thing to a manually-selected EV mode the Clarity offers. Some Clarity drivers on this forum who have the audacity to select SPORT Mode (not me), report it's possible for them to avoid engine-activating exuberance in that mode, too.
  4. Sandroad

    Sandroad Well-Known Member

    My Jeep was a CJ2A. It still lives! It’s owned by a family that owns a former lighthouse on Lake Superior. Last I heard their kids were learning to drive a manual transmission with it. I think it’s extremely unlikely any of our Clarities will be around 72 years from now.

    With a top speed of 50mph (downhill with a tailwind), the Jeep certainly didn’t need Sport Mode!
    Last edited: Jun 19, 2018
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  5. insightman

    insightman Well-Known Member Subscriber

    Last edited: Jun 22, 2018
    Sandroad and KentuckyKen like this.
  6. AnthonyW

    AnthonyW Well-Known Member

    Attached is the Standards and Service Limits for the PHEV for all of us do it ourselvers:

    Attached Files:

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  8. KentuckyKen

    KentuckyKen Well-Known Member

    AnthonyW hits another one outa da park! The alignment specs are great to have just in case the shop you use doesn’t have them in their system yet.

    I’m elevating you from Honda Superhero to Honda Demigod status.
    Dont where where we can go from here.
  9. bobcubsfan

    bobcubsfan Active Member

    Any way to check the ICE?
  10. DaleL

    DaleL Active Member

    I think the battery maintenance at dealer has important information as to the long term storage of a Clarity. Basically, the battery should be charged every thirty days. According to the document, allowing the battery to discharge and remain in a discharged state in hot weather (above 80°F), the electrolyte is closer to water. This water permanently sulfates the internal plates similar to oxidation and prevents charging and discharging.
  11. insightman

    insightman Well-Known Member Subscriber

    How about Honda Engineer? AnthonyW's so knowledgeable, it's getting a little suspicious.
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  13. bobcubsfan

    bobcubsfan Active Member

    Who is a Honda engineer? Anthony W???
  14. KentuckyKen

    KentuckyKen Well-Known Member

    Even if he was, he’d never admit it because then we would inundate him with a never ending list of questions, suggestions and complaints!
  15. insightman

    insightman Well-Known Member Subscriber

    Well, no Honda Engineer would be allowed to participate in a forum like this. KentuckyKen was looking for a next tier beyond Honda Demigod status so I came up with Honda Engineer as a joke. AnthonyW knows so much that I was getting suspicious that he might be a Honda Engineer in disguise.
  16. bobcubsfan

    bobcubsfan Active Member

    I received a call from Honda about my ICE issue. They said it would be researched and would contact me Thursday. We'll see how that works out.
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  17. AnthonyW

    AnthonyW Well-Known Member

    Ha ha, I wish I was a Honda Engineer! ;)

    Sent from my iPhone using Inside EVs
  18. Carro con enchufe

    Carro con enchufe Active Member

    There’s no explicit EV mode because, unlike the insight, EV is default.
  19. insightman

    insightman Well-Known Member Subscriber

    Honda designed the Clarity PHEV to provide the most efficient plug-in hybrid possible. If Honda's engineers believed an explicit EV Mode would achieve that goal, that mode would be available. It would certainly be a simple matter to include an EV Mode button, but those engineers found it is more efficient to use EV Drive mode in combination with HV Drive mode and Engine Drive mode.

    The computer algorithms that combine these modes frustrate some owners who purchased this plug-in hybrid with the expectation that they could choose to drive exclusively in EV Drive mode. I was one of these frustrated owners before I read how the Clarity PHEV was designed to maximize efficiency, not EV travel. I'm glad the Clarity recognizes EV Drive mode as the most efficient way to accomplish most of my driving.

    The 2019 Insight is a brilliant 55-mpg hybrid that, like the Clarity PHEV, starts in EV Drive mode if there's sufficient charge in its battery, but not for very far or at significant speeds.
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  20. Steven B

    Steven B Active Member

    I'll note that Honda engineers felt the need to add separate recirculation on/off buttons rather than a single button, so they are not infallible.
    Jason N likes this.
  21. insightman

    insightman Well-Known Member Subscriber

    I'm not ready to claim Honda's engineers are infallible, and I'm not prepared to defend every design decision they make, but I'll defend this one.

    Honda cars used to have a single recirculation/fresh-air button. So switching to two buttons was a deliberate decision that was perceived as one justifying the added cost. I believe they switched to two buttons, each with it's own LED, to make it easier to see at a glance which option is selected.
  22. Emanuel Green

    Emanuel Green Member

    Now if only there were an easy way to turn off the A/C but leave the fan on... It's kind of a ridiculous number of steps to get fresh outside air without running the climate controls :-/
    KentuckyKen and insightman like this.
  23. AnthonyW

    AnthonyW Well-Known Member

    Oops. Meant to post this a long time ago. Nice visual flow of the different drive modes.

    Attached Files:

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