Who has done their recall?

just got back from the dealer for the recall....

so far car feels the same......

 

It will, but then wait until you brake. Then try and drive up a hill quickly.

Or maybe there are a lot of failures in the software? hence a lot of reported problems but an equal number of people who can't tell anything.

 

Typical for the www. The modification only effects the full load situation, i.e. it probably does not give quite the power it used to. So if you you continually floor the throttle in your Prius you might notice a difference. I don't so I don't.

 

People who drive in Eco and never press the gas pedal fully will never notice a difference. The difference is not even that great. That's all there is folks and nothing more.

LOL, Greg, we posted at the same time.

 

Welcome to the internet?

 

What's the Interweb?

Mike

 

Maybe the varied experiences are because there were so many versions of production software on our cars.
All model years from 2010 to 2014 had two versions of the MG-ECU calibration.
For the Power Management ECU, 2010 models had 8 different versions, 2011 5 versions, 2012 3 versions, 2013 2 versions, and 2014 had 1 version. Updating to the current calibration software put everyone on the same version for their model year.

I had owned a 2011 Two Liftback produced 01/2011, and currently own a 2011 Three Liftback produced 10/2011. They had different software versions, and definitely behaved differently. The late production car was easier to glide, and got about 2 to 3 mpg better mileage in the same use. I can't say for certain that all this was due to the different software, but tend to think so.

 

Run 145 miles today at 80 mph in ECO mode with an average speed showing upper 60's. The displayed average was 40.xx mpg. I previously noticed ECO mode gave better mpg's than PWR mode with this new software while running fast.

Mike

wanderin around on my phone

 

Checked 2011 Prius little before 2pm appt for safety recall.

Checked out little before 4pm with reflashed MG ECU and Power Mgmt ECU, all systems ok of diagnostic report health check summary.

Reset tripmeter B for drive home. 18.2 miles, mostly freeway, 55.3 MPG on gage for trip, 75 F temp and 40 MPH average speed.

No noticeable difference in driveability at this point. Need more time for that.

 

then may I ask guys like WE0H, who say they did find it slower to accelerate: do you floor the throttle often?

 

Yes. I give her hell as needed. I do keep an eye on the HSI as I try to get higher mpg's. I travel across the USA every month. About 1600 miles per week.

Mike


wanderin around on my phone

 

Yes - there are a few reasonable hills where I live and you do have to floor it to keep up with the traffic. It was coming down one of these inclines that my inverter blew last year.

Not everyone drives their Prius as a hypermiler. Some use it as a car that happens to get good economy when required.

 

Just got back from a drive into the Dales. Lots and lots of old roads, many with very steep inclines. The car does not pull up them like it once did. It just revs very loudly - much louder than it did. The car also is very flat on acceleration now too. There is definitely no surge when you floor it in Power mode like there once was.

 

There is something fishy here.
Any "hypermiler" will tell you to NOT let the car use the battery for propulsion. It lowers the mileage.
This new firmware is supposed to push the Prius in the direction of less battery use, according to posters. That should -INCREASE- mileage.

Take a sugar pill and convince yourself it's pure energy. Then you can be "superman".

 

ok.... drove the car last night.... I would say there is a difference on how the car accelerates on WOT (please don't flame on me... but I usually drive my prius fast and does WOT often)..... now on WOT the car feels a lot slower to accelerate......it does not give the kick it use to have when I floor the gas pedal.....

I cannot comment on the MPG and battery charge difference though.......

 

Yes, I talked about it before, you must have missed it. The other part of the equation is LOWER regeneration; cancelling the effect and no net MPG change.

 

Ok, this is a thread about opinions and that's the reason why we see so many different and contradictory ones. That said, here is mine.

I drove today a route that I know well and that I know I can get easily over 60MPG on it. And sure enough I got the expected result like I always did before the upgrade. A drove it a little more and did not notice any different from the point of view of MPGs.

Now, this is what I notice different. I use ECO Mode all time, before as soon as I turned on the car, the ECO icon in the Hybrid System Screen was coming one right away. Now that screen takes like 3 seconds to becoming 'active' and the ECO icon stays off until the car stars moving. Other than that the car seems a little less responsive when accelerating in ECO mode from 0 to about 20 if you want to stay within ECO mode range, but nothing that bothers me and it could be my mind playing games on me.

My main concern was the MPG being affected and it's not at least in my City tests and I do not expect to see any difference at Highway speed.

Again, this is my uneducated opinion based in appreciations an little bit of testing and comparing with previous experiences that I repeatedly confirmed.

 

It would be more beneficial and objective if someone would go to an open road and clock a 0 to 60 MPH time. Even better to compare it to a 0 to 60 time before the update.

Beyond that, why be surprised that the car doesn't feel as strong when flooring the pedal???

They told us the update was to limit the electric drive to the IBGTs (?) within the inverter (?) .. or reduce the peak load to the IGBTs, etc...

I'm not surprised.

 

I'm not surprised. I'm reporting my individual findings of an owner who has done the recall.

I'm a little cheesed that the car isn't as quick as it was as it did shift in Power mode, but such is life.

Why all the criticism of peoples observations? The thread was for us to do so and I think we've found many commonalities.

 

People are in attack mode

Mike

wanderin around on my phone