please help!! prius not accelerating (limp mode?)

I'm sure your dealer has a better opinion,
but it sounds like your engine isn't running.

 

Yeah I don't know about the limp mode business you must have codes you keep going around in circles with all these mechanics and dealers and folks but nobody tells you any kind of codes they just tell you they're going to replace an O2 sensor and a speed sensor and a so on to me that doesn't even sound like that would fix the problem and I don't know why anybody would think that but I guess it sounds good coming out of mechanics mouth sounds like you're having pool running engine code 31 something whatever it is not necessarily engine won't start but poor engine running there's a whole section to troubleshoot that just like you would a regular car spark plugs ignition parts mass air flow sensor cleaning so on and so forth but in order to know these things you might have to understanding have some desire to have some mechanical background going on or something or some kind of an interest not just the fact that your car is not running right A lot of people don't have that so then you wind up just firing parts cannons and everything sounds sensible to you because well you work in a restaurant or whatever the case may be not shaming anybody don't care about all that but you need the codes that all the people are not wanting to give you for some reason so they can keep you strong along so you'll keep firing the parts cannon at the AutoZone kind of like drug addict behavior you know what I mean. So get the codes or spend the $68 and buy an ap200 you can Google it made by a company called a u t e l no self-respecting Prius owner should be without a scanner so they can be lied to and told all kinds of stories and walk around the whole city the long way just to get back to their house it's just silly but if that's interest you and that's the kind of behavior you want to pursue well you're well on the course you need to get the codes. Point blank without that you're pissing into the wind and it's getting you really wet

 

I trust you meant "stepping on the accelerator"? Mine also doesn't accelerate when stepping on the brakes.

The symptoms sound a lot like what happens if the power electronics are not getting cooled well enough. Drives ok until they get too hot. A capable scan tool might show a code related to that cooling system, like P0A93 maybe. (But use the capable scan tool, not my guess.)

 

Look into that ap200 for that little money it's a good deal for all the features and services it can perform in my eyes no self-respecting owner of a car this kind of complicated should be without such a simple inexpensive product that can stay in the console your pocket whatever it's also an excellent eobd scanner so in your vault and your Civic and all cars it will read codes that other scanners can't read it's bi-directional it's pretty much up to snuff works with Android 14 now I mean it's just too easy then at least you have the numbers I mean I guess shops now you have to beg these people to give you a printout just a few years ago it was mandatory now it's like they act like they've run out of paper or something funny how things like that arise at certain types of places you know usually it's income generating is what it is.