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Hello all, I am a new forum user. I purchased my 2918 Honda Plug-In Hybrid in December 2017. When the car was new the HV Range indicated 340 miles. After driving more than 2500 miles mostly in electric mode and enough miles in HV mode I needed to fill the gas tank. After getting a full tank of gas my HV Range indicates 1000 miles. Have others experienced this reading? I took the car to Honda Service to see if this was normal. I was told this was a software problem and Honda is working on it.
 

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Same for me. I have 6,000 miles and drive mostly electric. The electric range estimate is accurate but the gas estimate is not. hopefully they will have a software fix for that at some point. I just ignore that estimate and assume a full tank of gas will take me 7 gallons x 42 mpg = about 300 miles + whatever electric range I have.
 

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Correct, the car is calculating based on your accumulated habits and assumes that you will continue to drive in same manner. That being said, be sure to run the engine at least once a week in HV or sport mode for a least 15-20 minutes to keep it in good working order.
 

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HV & EV mileage range

My Clarity is 3 months old. After 2,473 miles, I just filled the tank for the 2nd time. The HV range now indicates 1,000 miles. This number has been too high since my 1st fill up when it listed 720 miles. I understand this is a known issue. Once a week I make a 96 mile round trip that requires HV mode.

My EV range varies between 56 and 63 depending on the Maryland weather. My son drives a Tesla and has informed me that his EV range is lower in the winter. I am interested in learning what others have experienced.
 

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EV range will be substantially lower in the winter, and typically most owners see a 15% loss. And a bunch of people have noticed some faulty readouts on the Clarity, which hopefully Honda will push out a software update for.
 

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I heard a software update came out about a month ago. It addresses the ev mileage readings as well as the rare flashing dashboard lights on startup.
 

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Do you know how one goes about updating the software of the car? Does it have to be done at the dealer?
 

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I think the reason we're all getting similar results is we're using the car around town and burning very little gas. In your setup, you can change whether the computer recalibrates when you fill it up or when you manually reset it. I think that could clear the issue. Mine is set to automatically recalibrate when I fill it (not very often). On a few short (about 50 miles highway travel) trips I've made in HV mode where the engine runs more, the average does come down to a little above 50 mpg.

This car has quite a few computers all working in harmony with each other. For this reason I named this car "WATSON".

I now have a Level II charger on my garage wall.
 

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HV range fix

Incorrect HV range fix is SB 18-069. It is a software update that is done by the dealer service dept. Had mine done and it is now correct.
 

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Correct, the car is calculating based on your accumulated habits and assumes that you will continue to drive in same manner. That being said, be sure to run the engine at least once a week in HV or sport mode for a least 15-20 minutes to keep it in good working order.
I think the car is programed to run for about 60 seconds every week or so. So far in 1,509 miles I've owned it It has not used much gas. My guess is 1/16 to 1/8 of a gallon.Just run it in electric mode and the computer will automatically run the ICE for 60 seconds or less
 

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Hello, We are new to the forum and really appreciate all the info sharing! We have a 2018 Clarity touring, and are currently seeing a drastic decrease in the EV charge. Today, it was only 34.3 fully charged. It started out around 45-47 in May when we purchased it, and then it hovered around 39. We took it back to the dealer for diagnostics and software updates. It then improved up to 47, and then started to fluctuate anywhere between 35 and 49. Most of the time it maxes out at 37.

Is anyone else experiencing not getting a full charge? It is advertised at 47 EV, and on this thread, I see some of you are even getting 50 plus!
 

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Clarity

My car just have a software update last week because the check engine is on even I never run on gas, yes on electric my car can run between 45- 48 miles on electric
 

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It estimating how many miles you will get based on your history of driving. In colder weather, it was estimating about 37 miles on a full charge. Now at the end of summer, I'm averaging about 55 miles with a record high of 67 miles on a charge. If you drive around 35-40 miles an hour in warm weather I expect your range estimate and actual range will improve.
 

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Tom, do you have the plug in hybrid or straight electric Clarity? Wow, if you have the hybrid and have hit the high 60's with your EV that is amazing. So what you are saying is that when our hybrid shows 100% EV charged at 37 miles, it is estimating that is how many miles we will go on that charge based on our past driving history?
 

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I have had the dealership apply both SB 18-069 and SB 18-079 software updates to my vehicle, but the HV range calculated to 1000 when I filled up the tank. It remains there a couple of weeks later. If there is a setting to change the calculation method to exclude EV usage, that would be very helpful.
 

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I normally get between 58 and 62 miles in EV mode.

How are you calculating range. Are you basing it on the guess o meter on the dashboard, or do you reset the trip meter to zero at the start of each trip? I have my trip meter set to automatically reset itself to zero at the start of each trip. By using the trip meter you a more accurate estimate of your true distance traveled on a single charge
 

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Regarding the periodic running of the engine for 60 seconds... I wonder how Honda figured out how to keep the engine oil from breaking down? Short 60 second cycles surely can't be ideal for a ICE.
 

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I normally get between 58 and 62 miles in EV mode.

How are you calculating range. Are you basing it on the guess o meter on the dashboard, or do you reset the trip meter to zero at the start of each trip? I have my trip meter set to automatically reset itself to zero at the start of each trip. By using the trip meter you a more accurate estimate of your true distance traveled on a single charge
This is what I am actually getting as well.
The instrument cluster's "guess o meter" says 45-60 miles per charge when I start my commute day.
@firsthonda must be using regen paddles, coasting, and light braking to get the regen energy back into the battery ?

I am amazed at how much further you can get EV range by consciously making an effort to regain battery power by driving in regen mode....
 
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