INDICATED EV Miles

it's based on how many you've gotten in the past

toyota doesn't disclose their methodology, but if you drove the same route every day in ev only, the number would not change except for weather and driving style.

 

Two biggest factors that affect EV range on GOM after a full charge are recent miles/kWh on your eco log and ambient temperature with corresponding HVAC use. Since you live in paradise with non-fluctuating temperatures in 70s, your single most important factor affecting GOM EV range is your daily EV efficiency (miles/kWh) shown in your Eco log. The 22-24 miles on GOM is low. I have not seen it that low on my PP. The lowest I have seen is probably ~25miles when I first I got the car and during the coldest time of winter.

Here is the graph of daily change on GOM EV range on my 2017 PP with a daily charge and use of the car when I was experimenting how far I can get it to go. I was able to go as far as 48.7miles on GOM, then stopped the experiment. @PiPLosAngeles has had 50 miles on GOM and it is the limit on GOM display. It will not go higher than 50miles. The rapid drop at the end of 9 mo experiment was when I stopped driving the way to increase miles/kwh but returned to normal EV driving without paying much attention to conserve the battery use. It takes much longer and sustained days and months of conserved EV driving with 8-9miles/kwh or higher in order to increase the number but a single day of careless extravagant EV drive in range of 3-4miles/kwh or lower will drop the GOM very quickly. Take a look at your Eco log to see what numbers you have been getting in miles/kWh.

 

Lately, I've been seeing a predicted EV range with air conditioning of 32 miles and change. W/O AC, it's showing about 34 miles and change. But it can vary based on where I drove last time. Some of my routes have lots of high speed stop and go, so next time the GOM will be lower. I have never managed to get it under 28 miles although there have been a few times my actual range turned out to be around 27-28 miles.

 

As I said, the lowest I have seen on mine is ~25miles GOM EV range, but the middle of winter actual EV range dip to ~18 miles on occasions. Right now on my new 2020 PP, the last time I had it charged full, the GOM was 33.4miles. But that was almost two month ago. I have not been charging my car to full since then.

 

it's funny how often this presents a stumbling block to owners

 

Above, my and @jerrymildred comments are the EV range SHOWN after charging, NOT how far I or Jerry drove on a charge. My graph is nothing but that daily record of the EV range shown on the dash after each day of full charging the battery. To tell the truth, I don't even have a clue as to how far I could have driven on a full charge on those days since that is never an easy task to record from any of data displayed on the Prius Prime. Your numbers on GOM is lower than what's on my car or Jerry's car, but that does not mean it is not typical under your driving condition. Check your Daily Eco log and Drive Monitor 2 to see what kind of miles/kwh you are typically driving on EV mode. If that is always 3-4miles/kWh or lower, then your 22-24miles GOM EV range with a full charge is perfectly normal.

 

As said above, it's an estimate based on your previous drives, the mode your were set to (ECO, Normal, PWR), your A/C or heat temp settings, etc.

 

Did you read what @Salamander_King and I wrote in posts 3, 4, & 5? Those were direct answers to that question.

If you're showing 25 miles predicted, that because you're getting about four miles per kWh. If you drive more slowly, or brake more gradually, or accelerate more gently, that should give you more miles per kWh and as a result, the predicted range will increase. I average just over five miles per kWh, so my predicted range is over 30 miles.

Still, a 25 mile range is a prediction of exactly the range the EPA estimates you can average, so it's not all that bad.

The prediction is exactly like the predicted range on your gas tank. It's an estimate based on previous performance.

 

i think we're all talking about range displayed. yes, it is normal.

if you drive 30mph every day for awhile on ev, it will go up over 25 'displayed'

 

Here is the most recent GOM EV range this morning right after completion of the charge. 34.5miles EV range SHOWN after charging. This was a 0.9miles increase from the last full charge almost two months ago.

 

The estimated EV range screen or GuessOmeter (GOM) as some like to refer to it, shows quite a large range here at PC from different members. Yes, low 20's is normal - for you. Some are showing mid teens, but those posts don't stand out as much as the hypermilage ranges do, It's not magic, and what you are seeing is what's normal for your car being driven the way it presently is and will not change much unless the car is either driven differently or it gets warmer or colder outside and the heat or A/C uses more of the available EV range.
Give it some time, colder weather is coming and when it gets here EV range and MPG drop and usually don't recover untill late spring.

 

It could be that simple if we all always drove at exactly the same speed in the same temperatures on the same terrain with exactly the same braking procedures and carrying the same weight inside the car with the same wind speeds and directions. Then it would be simple.

It's not the car that's complicated; it's us.