Poor ev milage on 24 prime

What does "fuel economy" section in the gauge cluster say? You can see both trip (if set to trip vs. total) and real time. To get 44 you need to see at least 4mi/kWh average.

Consider:

• speed (highway 70mph+ you'll be lucky with 3mi/kWh),
• lead foot (I can get 1mi/kWh having fun),
• climate control (10% cut easy),
• tire pressure,
• wheel weight

 

It's probably the way you're driving it. Have you made any changes to the car since your purchase? Wheels, tires, roof rack etc?

 

I'm at 1300+ miles with 40 miles of range estimated at full state of charge.

I was at 800+ miles with 38 miles of range estimated at full state of charge.

The number does recalculate based on how you drive and what conditions you drive in.

I generally run low (Eco) heat climate control in cold weather, with heated seats instead of blowing a lot of air. If I really need high heat or defogging, the gas engine should do it more efficiently than the EV alone so I let it run in HV if it needs to.

If you accelerate really hard in EV mode, consider letting the engine do some of the work in Auto or HV mode, since it will accelerate much faster and with less hard wear on the battery. The car seems better designed to do this, and will accelerate fairly effortlessly if you let the gas engine run rather than forcing it to stay in EV. I find that Auto or HV mode performs better than EV coasting/maintaining at 60-80 miles per hour, both by the numbers and in terms of not overworking the battery needlessly. If you floor it in EV mode, expect that the car will only accelerate moderately but have extremely inefficient power delivery. This is mostly outweighed by how efficient the EV mode is at low loads and lower speeds, but not entirely. If you are using a lot of throttle, let the engine warm up for a few minutes and then feel free to use that in addition to the electric motor.

This is in Colorado Front Range winter conditions, so somewhat cold with big variations and very sunny, so I expect to get slightly better numbers in the spring/fall, and about the same in the summer.

 

Shut off the heat pump/AC compressor. Mine was 'on' when I first got the car. I could not determine why the car was so noisy. Turned out that the "AUTO" was on, meaning the compressor was always running, draining the traction battery.

 

When it's below freezing, with winter tires I get around 3.5

When it's 10C with winter tires I jumped up to 4.6

Lots of factors impact the variability. You don't notice it as much on an ICE because gas tanks are big and they go far. So if you fill up 35L and go 500km, then in winter for 440km because of the conditions, you don't *really* notice the 10% cut in range because the range is so long to begin with.

Losing 10-15-20% of your range due to driving conditions is significantly more obvious when the range is a fifth of what you're traditionally used to having in between "fill ups" as it were also.

 

You are not going to get the EPA range estimate with any BEV if you drive very fast, as the aerodynamic drag force increases with the square of the speed. Heavy acceleration and deceleration will also contribute to the range loss.

 

The history data the car keeps about how it was driven is calculated into the estimates of EV range.
It's true that to get better EV range and more miles per kWh the driver has to learn how to get them.
There is an engine in the car and if you haven't yet or don't want to learn how to get better EV stats than it's to your advantage to use the engine more, while figuring out how the EV stuff works in your favor and / or against it.

Another member posted nearly the same issue a couple days ago.
Gen 4 Prime (2020) not fully charging anymore | PriusChat

 

Which is basically:
Drive slower and slower each day in EV mode, until you see the numbers you like.
Slower. It's the only thing that works.

Why would you ever encourage burning gas to save EV miles?

 

Burning gas during higher speed segments will mean more total EV miles for lower speed ones.

It's the entire theory for a blended PHEV.