I'm not sure if stalling is the correct term for this issue, but this is what's happening: a few times I'll be driving and when I take my foot off the gas pedal my car will make some weird noise and start slowing down really fast without me touching the brake pedal. This isn't a constant problem, I think it's only happened a few times in the last few months. For what it's worth, this has only happened while driving on the freeway. I have no idea what could be causing this, has anyone here experience a similar problem? Also it's a 2005 prius if that changes anything
The Prius cruise control attempts to regulate your speed, if you have cruise on 60 MPH but speed up to 70, it will haul you back to 60 fairly rapidly.
My bad, I meant braking. It just starts slowing down really fast when I take my foot off the gas,. It's not on cruise control (as far as I know), it does this no matter what speed I'm at
did you just get the car? perhaps you're not used to regen which occurs when you release the gas pedal. try just slightly depressing it to see if it speeds up. you can look at the power display to see what's happening, but keep your eyes on the road!
Make certain your emergency brake isn't even slightly engaged. This happened to me with my '07 Prius when I noticed I was slowing down when descending fairly steep grades.
This happened to me and I had inadvertently shifted in into "B" (engine braking). Exactly what the OP said happened. However, he says that it has happened a few times which could possibly be a shift control problem? I would suggest checking the PRNDL display (the old term for auto-shift indicator) to see what "gear" the car is in. It should show "B" instead of "D" at the time the problem manifests, if we are on the correct track here. By the way, I thought the "Break Pedal" response deliberately obtuse. People mix those two words up all the time and most of us know the intent. Again, patience with new forum members. Or at least, let's be brilliantly funny about it! There's another word that gets substituted often on automotive forums but I forget that one.
I've had it since 2005. I didn't touch my emergency brake, and I wasn't shifting into B when this happened, unless it did it by itself somehow. This only started happening in the past year, I used to just ignore it hoping the last time it happened would end up being the last time it would happen, but I want to get this thing figured out already.
Next time this happens, pls look at your gear selector indicator to see if the transaxle is in D, or B.
emergency brake can drag without you touching it, although, i think it would be all the time and more noticeable at slower speeds.
Since there is an odd noise related to the 'braking' , I would also consider a wheel bearing going out, suggest to the OP looking at some of the threads concerning this.
So it appears to be that my car was in B without me realizing it. I often drive with a GPS mounted on my dashboard and sometimes it falls off and hits the gear stick (I think that's what it's called?) and must've put it into B in the process. I was driving today and put it into B to see what happens and it made the same noise and did the same thing as what happened before, so that must be it. My question would be, would driving while in B do any long term damage to the car?
Glad you found out what the problem was. Change the location of the GPS!! Now you can enjoy your Prius without worrying about the "problem!"
